canonical · 0.9 capabilitymarket schemadomain

A2A

Score 36.6 / 100 442 providers +6 via APIs 193 APIs Search apis.io →
Variants seen in the corpus: Agent to Agent ProtocolAgent-to-AgentAgent2AgentAgent CardA2A

Providers using this tag (442)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 68 Complete, well-documented, and agent-ready
SalesforceFortune 500Artificial IntelligenceAnalyticsCloud4 APIs91.8APIs.ioAPI AggregationAPI DirectoryAPI DiscoveryAPI Indexing20 APIs90.1Xquiksocial-media-dataX / TwitterSocial ListeningData Extraction2 APIs88.7Customer.ioBehavioral DataBroadcastCampaignsCDP4 APIs83.8AgoragenticAgentsAgentic CommerceAgent RuntimeMarketplace3 APIs80.5RedoclyArtificial IntelligenceAPI CatalogAPI DocumentationArazzo4 APIs79.7KitEmail MarketingCreator EconomySubscribersAutomation2 APIs78.5Relevance AIAI AgentsAI AutomationMulti-Agent SystemsAgent Platform1 API78.5CDataDataData AccessData ConnectivityDatabase9 APIs78.0GhostPublishingNewslettersMembershipSubscription3 APIs78.0ActiveCampaignMarketing AutomationEmail MarketingCRMSales Automation9 APIs77.6Elation HealthHealthcareUnited StatesEHREMR19 APIs77.4BirdeyeReputation ManagementReviewsCustomer ExperienceSurveys2 APIs77.3TabbyBuy Now Pay LaterConsumer FinanceE-CommerceFintech1 API77.1NylasCalendarCommunicationsContactsEmail2 APIs76.5OneSignalNotificationPushEmailSMS2 APIs76.0Automation AnywhereRPAIntelligent AutomationAgentic Process AutomationAI Agents7 APIs75.6Boom AiCompanyArtificial IntelligenceConversational AICustomer Engagement1 API75.6ThanxRestaurantLoyaltyGuest EngagementMarketing3 APIs75.4DifyArtificial IntelligenceLLMOpsBackend-as-a-ServiceAgents2 APIs75.3ForceDreamAI AgentsAgent MarketplaceMCP3 APIs75.1LeadpingLead ManagementSales & marketing automationSMS MessagingA2P 10DLC1 API74.9Hive CivilizationAgentsAgentic CommerceMCP2 APIs74.8IBANforgeFinanceBankingComplianceMCP1 API74.0MandateShieldCompanyPaymentsAgentic CommerceAI Agents1 API73.9lemlistEmail OutreachSales EngagementCold EmailSales Automation3 APIs73.2DelxAgentsAI AgentsMCP4 APIs72.6Fireflies.aiArtificial IntelligenceMeeting AssistantTranscriptionSummary1 API72.6DrippayCompanyBillingUsage-Based BillingMetering1 API72.00xArchiveMarket DataHistorical DataCryptoDeFi2 APIs71.6VidyardVideoVideo PlatformVideo AnalyticsVideo Sharing3 APIs71.5CloudflareAI GatewayAPI GatewayArtificial IntelligenceCDN24 APIs71.4HiltPaymentsSolanaStablecoinsUSDC2 APIs71.3Browser UseAI AutomationBrowser AutomationWeb AgentsWeb Scraping6 APIs70.8SCVD General StoreAgentsAgentic Commercex402Payments3 APIs70.7UpholdCompanyCryptocurrencyDigital AssetsPayments5 APIs70.6BindbeeApplicant TrackingHR IntegrationHRISWorkforce1 API70.4DeBounceEmail VerificationDeliverabilityDisposable Email DetectionMX Records3 APIs70.4Cracked APIAI AgentsAgent ToolsMCPTool Router2 APIs70.3Microsoft Azure API ManagementAI GatewayAPI CenterAPI Gateway1 API70.2UnifySalesMarketingGo-To-MarketOutbound4 APIs70.0TaskHawk SystemsAI GovernanceAgent SecurityRuntime EnforcementPolicy Enforcement1 API69.9DensifyCloud CostContainer OptimizationFinOpsKubernetes43 APIs69.5TextQLCompanyArtificial IntelligenceAnalyticsBusiness Intelligence15 APIs69.5Edge ImpulseArtificial IntelligenceMachine LearningEmbedded Machine LearningEdge AI2 APIs69.4FeedOracle TechnologiesCompanyMCPAgent Infrastructure3 APIs69.1PauboxEmailHIPAAHealthcareCompliance3 APIs68.4GitDealFlowVenture CapitalDeal FlowStartupsGitHub1 API68.2HightouchCDPData ActivationReverse ETLAudience Management1 API68.0Dynamic FeedLive DataAI AgentsMCP2 APIs67.9ClixPush NotificationsMobileMessagingCampaigns1 API67.8IntegrationOSAgent InfrastructureAI AgentsConnectorsHistorical1 API67.6AtlassianCodeCollaborationPlatformProductivity123 APIs67.5SendcloudShippingLogisticsE-CommerceCarrier20 APIs67.5Blnk FinanceFintechFinancial ServicesLedgerdouble-entry-accounting1 API67.4Context.devWeb ScrapingBrand IntelligenceData EnrichmentAI Agents1 API67.2Gemini Trust CompanyCompanyCryptocurrencyExchangeTrading2 APIs67.2Live Direct MarketingCompanyEmailEmail DeliverabilitySales & marketing automation2 APIs67.1AlgoVoiPaymentsAgentic Commercex4025 APIs67.0EmbossPDFFormsDocument ProcessingForm Filling2 APIs67.0Seamless.AIB2BContact DataSales IntelligenceProspecting2 APIs67.0People Data LabsData EnrichmentWeb IntelligencePerson DataCompany Data2 APIs66.8ProfoundCompanyArtificial IntelligenceAnswer Engine OptimizationAEO2 APIs66.7Scope3CompanyEnterpriseAdvertisingCarbon Emissions4 APIs66.7SpadeCompanyFinancial ServicesTransaction EnrichmentMerchant Intelligence1 API66.7ParallelCompanyArtificial IntelligenceWeb SearchAgents2 APIs66.6ExploriumData EnrichmentB2B DataCompany DataProspect Enrichment1 API66.5SignSealShip Partner APINotarizationRemote Online NotarizationElectronic SignatureDocument Verification1 API66.5
Strong 110 Solid coverage with minor gaps
PostizSocial MediaSchedulingOpen SourceContent3 APIs66.4API EvangelistAPI EvangelistDeveloper PortalAPI ResearchAPI Governance2 APIs66.2MetriportHealthcareMedical RecordsFHIRHealth Data1 API66.2Fodda (PSFK)Market IntelligenceTrend ResearchKnowledge GraphConsumer Insights2 APIs66.1InstantlyCold EmailOutboundSalesDeliverability3 APIs66.0cogDepotCompanyAI AgentsAgent MarketplaceMarketplace1 API65.9Virix LabsBrowser AutomationCloud BrowserAI Agents3 APIs65.7Booking.comTravelHospitalityAccommodationBooking15 APIs65.6ClayProspectingGo-To-MarketSalesEnrichment1 API65.6GivebutterDonationsFundraisingNon-ProfitCRM1 API65.6RelmCRMSalesContactsDeals1 API65.4The ColonySocial NetworkAI AgentsAgentsForums1 API65.4KonbiniAPISocial MediaInstagramTikTokX2 APIs65.1Benchmark EmailEmail MarketingCampaignsContactsAutomation2 APIs65.0KoalaBuyer IntentVisitor IdentificationDe-anonymizationEnrichment2 APIs64.9LacunaAI MusicMusic GenerationAI Song GeneratorAI Lyrics Generator2 APIs64.9ShieldLabsFraud PreventionAbuse PreventionVisitor IdentificationDevice Fingerprinting1 API64.9TaskfolkProject ManagementIssue TrackingTask ManagementProductivity4 APIs64.7Env0FinOpsInfrastructure as CodeDevOpsCloud1 API64.6Inflection.ioCompanySoftware-as-a-ServiceMarketingMarketing Automation1 API64.6IBMDatabaseIBMAPI ManagementArtificial Intelligence1 API64.5StructifyCompanyArtificial IntelligenceDataWeb Scraping1 API64.5ImmutableCompanyGamingBlockchainNFT2 APIs64.4FirstPromoterAffiliate MarketingReferral TrackingSoftware-as-a-ServiceCommission Management74 APIs64.3ServiceNowServiceNowAutomationCloud ServicesDigital Workflows9 APIs64.3CymeticaPrediction MarketsCryptocurrency ExchangeTradingAI Agents1 API64.1WebCrawlerAPIWeb ScrapingWeb CrawlingData ExtractionMarkdown2 APIs63.9Agent ReadyAgentsAgent ReadinessWebsite ScanningDeveloper Tools1 API63.5MolTrustAI AgentsAgent IdentityDecentralized IdentityVerifiable Credentials2 APIs63.5RoxyAPIAstrologyVedic AstrologyNumerologyTarot1 API63.5Brand API (Brandfetch)BrandsLogoBrand AssetsCompany Data3 APIs63.4Rhombus SystemsPhysical SecurityVideo SurveillanceAccess ControlIoT Sensors1 API63.4Dash0ObservabilityOpenTelemetryMonitoringLogs1 API63.1ClosedLoop AIProduct IntelligenceCustomer FeedbackVoice of CustomerProduct Management1 API63.0Match It UpCompanyProfessional NetworkingAI AgentsAgent Protocol1 API63.0SeekrArtificial IntelligenceGenerative AIAgentsLLM8 APIs63.0Google Cloud PlatformAPI ManagementCloud ComputingInfrastructurePlatform-as-a-Service1 API62.9Parallel Web SystemsCompanyAi MlWeb SearchDeep Research2 APIs62.8iDenfyAMLAge VerificationBank VerificationBiometrics14 APIs62.7The Ainglish ProjectAI AgentsAgent CommunicationLanguage RegisterLinguistics1 API62.4NavatticInteractive DemosProduct DemoSales EnablementMarketing1 API62.3FullEnrichB2B DataContact EnrichmentEmail FinderPhone Finder1 API62.2Magic HourAI VideoImage GenerationAudioGenerative AI2 APIs62.0Dant3CompanySocial NetworkAI AgentsAgent Identity1 API61.9Gr4vyPaymentsPayment OrchestrationFintechCheckout4 APIs61.9Nefesh AICompanyBiometricsHuman StateStress Detection4 APIs61.9PyannoteAICompanyAi DataSpeech RecognitionSpeaker Diarization2 APIs61.8Abstract APIAvatarsCompany EnrichmentContactsCurrency13 APIs61.6HeronCompanyFinancial ServicesDocument AutomationUnderwriting1 API61.6HookLogic (Criteo)CompanyCommerceRetail MediaAdvertising1 API61.6RefuelArtificial IntelligenceLLMData LabelingData Enrichment3 APIs61.6Integration.app (Membrane)Agentic IntegrationsAI AgentsConnectorsEmbedded Integrations1 API61.0SmartleadCold EmailOutboundSalesDeliverability1 API61.0xCuresHealthHealthcareMedical RecordsInteroperability1 API60.8CriteoAdvertisingAgent SkillsAnalyticsAudiences6 APIs60.7GraviteeAPI GatewayAPI ManagementAccess ManagementIdentity2 APIs60.7aicomglobalAgentsAgentic CommerceMCP1 API60.4Numbers OnlinePhone IntelligenceCaller IDCNAMReverse Phone Lookup1 API60.0SendsparkCompanyVideoSalesMarketing1 API60.0Agent DiscoAI AgentsAgent DiscoverabilityWebsite AuditingDeveloper Tools1 API59.9DeployxaPlatform-as-a-ServiceCloud DeploymentDevOpsCI/CD1 API59.4FieldPulseCompanyField Service ManagementService ManagementScheduling1 API59.3GameballCompanyLoyaltyRewardsGamification1 API59.2CelloCompanyReferral MarketingAffiliate MarketingGrowth1 API58.9SyllableCompanyArtificial IntelligenceAI AgentsVoice1 API58.8invinoveritasAI AgentsAgent VerificationAgent GovernanceMCP1 API58.7LindyAI AgentsAI AutomationMCPWorkflow Automation1 API58.7ApideckIntegrationUnified API4 APIs58.6MERCURYCompanyAgentsMCP1 API58.6PagesnapDeveloper ToolsWeb Scrapingweb-to-markdownscreenshot-api1 API58.5CurlecCompanyPaymentsPayment GatewayRecurring Payments1 API58.4Ultravioleta DAOCompanyAI AgentsAgent MarketplaceTask Marketplace1 API58.4Whisper SecurityAgent IdentityAgentsIPv6DNS5 APIs58.4PostalFormPhysical MailPrint & MailPostal MailCertified Mail4 APIs58.1SendosoCorporate GiftingDirect MailSales EngagementMarketing Automation8 APIs58.0CONNSKILLCompanyAPI ProviderSEOSERP1 API57.8AI SquaredData IntegrationReverse ETLArtificial IntelligenceMachine Learning30 APIs57.6EndgameCompanySalesRevenue IntelligenceGo-To-Market2 APIs57.5makeup.landCosmeticsBeautyRetailE-Commerce1 API57.4RevenueBaseCompanyB2B DataData EnrichmentEmail Verification2 APIs57.1HumanMirrorCompanyAI AgentsAgent SecurityPrompt Injection Defense16 APIs56.9iwant.fyiAgentic CommerceMarketplaceAI AgentsPurchase Intent1 API56.9LeadpagesCompanyLanding PagesMarketingConversion Optimization3 APIs56.9Sift StackObservabilityTelemetryAerospaceDefense1 API56.9Atomadic TechCompanyAI AgentsAgent InfrastructureMCP1 API56.7SiroCompanySalesSales CoachingConversation Intelligence5 APIs56.6BiconomyAccount AbstractionBlockchainBundlerCross-Chain2 APIs56.5gpt55-token-gatewayx402Agentic PaymentsMCP5 APIs56.5ApstalAnalyticsWeb AnalyticsPrivacySession Replay2 APIs56.4BraleCompanyStablecoinsStablecoin IssuancePayments1 API56.2broke2builtCompanyAI AgentsAgent ToolsData Intelligence3 APIs56.1Fasten HealthHealthcareFHIRPersonal Health RecordElectronic Medical Record1 API56.1PineconeVector DatabaseArtificial IntelligenceEmbeddingsRAG6 APIs55.9GoogleAdvertisingCloudDevelopersGoogle9 APIs55.8Block LottosCompanyLotteryBlockchainWeb31 API55.7Perfect CorpBeautySkincareCosmeticsFashion131 APIs55.7temp.mdWeb PublishingStatic HostingAI AgentsMCP2 APIs55.5Ab180CompanyAttributionMobile MeasurementMarketing2 APIs55.1AirMDRSecurityManaged Detection and ResponseSecurity OperationsAlert Triage2 APIs54.9BuiltWithTechnology ProfilingLead GenerationWeb IntelligenceTechnology Detection10 APIs54.9Council of AIAI GovernanceAI MeasurementAI SafetyEU AI Act2 APIs54.9CustomerOSCRMRevenueGo-To-MarketLead Intelligence10 APIs54.9Copper.coCompanyDigital Asset CustodyCryptocurrencyFinancial Services5 APIs54.8DecartArtificial IntelligenceMachine LearningVideoVideo Generation2 APIs54.8SpeakeasyArtificial IntelligenceDocumentationMCPPlatform1 API54.7MavenlinkProfessional Services AutomationProject ManagementResource ManagementTime Tracking2 APIs54.6PydanticAIArtificial IntelligenceAgentsPythonLLM2 APIs54.5RockerboxMarketing AttributionMulti-Touch AttributionMarketing Mix ModelingIncrementality Testing2 APIs54.4BudgetPixelGenerative AIAI Image GenerationAI Video GenerationAI Music Generation2 APIs54.3Green HelixAgentsAgentic CommercePaymentsEscrow1 API54.3
Developing 140 Usable, with meaningful gaps to close
AgentGatewayAI GatewayAPI GatewayMCPLLM1 API54.2ClawSpanAI AgentsAgent MarketplaceAgent-NativeMCP2 APIs54.2ChronosphereObservabilityAIOpsMonitoringMetrics3 APIs54.1AgentsPodiumAI AgentsAgent HostingMCP1 API53.9AmbrCompanyAI AgentsAgentic CommerceContracts3 APIs53.7Sylvia APIRedditSocialDataSearch3 APIs53.7Beyond PresenceCompanyAi Enterprise SoftwareArtificial IntelligenceAvatars1 API53.62sAgentsAgentic Commercex402MCP3 APIs53.5APIMeshWeb AnalysisSEOWeb SecurityEmail Verification2 APIs53.5ClaixDocument ProcessingData ExtractionDocument IntelligencePDF1 API53.5SMKlogCompanyShippingLogisticsParcel Shipping1 API53.5LVL LTD COAgentsAgentic CommerceAgent Skills1 API53.4StarbridgeCompanyArtificial IntelligenceSales IntelligenceGo-To-Market1 API53.4ANP2AgentsAgent NetworksMCP3 APIs53.3OrthogonalCompanyAI AgentsAPI DiscoveryAPI Marketplace2 APIs53.1Terabase EnergySolarRenewable EnergyEnergy ModelingUtility-Scale Solar2 APIs53.1AgentcardCompanyPaymentsVirtual CardsCard Issuing1 API53.0PixeltableCompanyAi DataMultimodal AIAI Data Infrastructure3 APIs53.0HORIZON SHIELDConstructionRenovationCost EstimationFair Pricing7 APIs52.8Vaultfire ProtocolAI AgentsAgent IdentityTrustReputation1 API52.8CanFlyAgentsAI AgentsAgentic CommerceMarketplace1 API52.5ChainAware.aiBlockchainWeb3DeFiFraud Prevention1 API52.5ReevoCompanyArtificial IntelligenceSalesCRM2 APIs52.5AgentMeshAI AgentsAgent NetworksAgent Discovery1 API52.4AntimetalCompanyObservabilityIncident ManagementSite Reliability Engineering1 API52.4TypeSafe AIArtificial IntelligenceMachine LearningClassificationContent Moderation1 API52.4ABBYYAI AutomationDocument ProcessingOCRIntelligent Document Processing6 APIs52.3Hive Agent IQAgentsAgentic CommerceMCP4 APIs52.3OptionsAhoyEquity CompensationTaxStock OptionsFinancial Planning3 APIs52.3BrunoAPI ClientAPI TestingDeveloper ToolsOpen Source6 APIs51.9ememCompanyArtificial IntelligenceAI AgentsAgent Memory1 API51.3SAPSAPArtificial IntelligenceBTPBusiness Applications3 APIs51.1SolvelaCompanyPaymentsArtificial IntelligenceLLM Gateway1 API51.1Confido LegalComplianceDisbursementsGraphQLIOLTA1 API51.0FarmDash Agent HubDeFiDeFAIAI AgentsMCP1 API51.0XGuardAgentsAgentic Commercex402MCP4 APIs50.8Kann KI das? Sponsoring AgentCompanySponsoringAdvertisingSoftware Reviews1 API50.6PlyriumCompanyAgent SkillsSupply Chain SecuritySoftware Provenance1 API50.6The HogCompanyGTM IntelligenceSales IntelligenceData Enrichment1 API50.6Move Home Organisation CICReal EstatePropertyLettingsProperty Sales4 APIs50.5Agentic AI FoundationAI AgentsLinux FoundationOpen SourceStandards1 API50.4Macaroon NetworkAgentsAgentic CommerceMCP4 APIs50.4Space FrontiersResearchScholarly SearchFull-Text SearchRetrieval2 APIs50.3TARXANCompanyAI AgentsAgent RuntimeLocal-First AI3 APIs50.3TrueFoundryAI PlatformEnterprise AIKubernetesLLM Gateway1 API50.0Rett fra BondenLocal FoodAgricultureFoodMarketplace3 APIs49.8CrewAI CloudAI AgentsAI Agent PlatformAgent OrchestrationMulti-Agent Systems1 API49.7InthCompanyConsent ManagementPrivacyCookie Consent1 API49.7MonacoCompanyCRMSalesRevenue Operations1 API49.6SSSNACKAgentsAgent-NativeMCP3 APIs49.6Decision AnchorAgentsAgent AccountabilityDecision RecordsAudit Trail1 API49.4EnfuceCompanyPaymentsCard IssuingFintech2 APIs49.3EqualsCompanyAnalyticsSpreadsheetsBusiness Intelligence1 API49.2SandboxAQCompanyArtificial IntelligenceSecurityCryptography1 API49.2LokkiCompanyClimate TechCircular EconomyRentals2 APIs49.1Moirai LabsCompanyBlockchainSmart ContractsWeb31 API49.1Pictomancer.aiCompanyImageImage OptimizationImage Processing1 API49.1EmotiveCompanyMarketingSMSMessaging18 APIs49.0Seam AICompanyAi MlAccount Based MarketingSales Intelligence1 API49.0ViewsMeetSocialGamesPersonality AssessmentSurveys & Polls1 API49.0OcientCompanyDataAnalyticsData Warehouse1 API48.7HilosCompanyWhatsAppMessagingAutomation1 API48.6AfriexPaymentsRemittancesCross-Border PaymentsFintech1 API48.4AGNTCYAI AgentsInteroperabilitySpecificationOpen Source4 APIs48.4AngelListDocumentsFundInvestingJob1 API48.2ClawdChat 虾聊CompanyAI AgentsSocial NetworkAgent Registry1 API47.8Digital AssetBlockchainTokenizationDigital AssetsFinancial Services6 APIs47.7Automation Preflight APIAutomationIntegrationDeveloper ToolsReadiness2 APIs47.6Agent ExchangeAgentsAgentic Commercex402MCP5 APIs47.5KardinalCompanySoftware-as-a-ServiceRoute OptimizationVehicle Routing1 API47.4AvalixAgentsAgentic CommerceMCP3 APIs47.3SirenicCompany DataBusiness RegistryKYBSanctions Screening1 API47.3PermutiveCompanyPublishingAdvertisingAdTech11 APIs47.2TrustBoost PII SanitizerPrivacyPII RedactionData ProtectionLLM Security3 APIs47.2Phos LabsCompanyBehavioral ScienceConversion OptimizationE-Commerce1 API47.0Coin RailzCompanyPaymentsAgentsx4022 APIs46.9Luther SystemsAgentsAgent DiscoveryMCP1 API46.9Hergert SynthoraCompanyAgentsMCP2 APIs46.7anchor-x402Companyx402AgentsPayments1 API46.5Novita AIArtificial IntelligenceLLMInferenceGPU1 API46.5NeuralVerge APICompany DataPeople DataContact EnrichmentEmail Finder1 API46.4InterfazeCompanyArtificial IntelligenceMachine LearningLLM1 API46.1OpenSeaNFTMarketplaceWeb3Blockchain1 API45.8SegmentStreamCompanyMarketing AnalyticsAttributionMarketing Measurement1 API45.7CharitySenseNon-ProfitCharitiesDue DiligenceIRS Form 9902 APIs45.6PolycodeChatMemoryAgents2 APIs45.6TavilySearchWeb SearchAI AgentsLLM1 API45.5Verified Digital Agents (VDA)CompanyAI AgentsAI GovernanceCompliance6 APIs45.4Piknik.SpotLocal FoodAgricultureFarmers MarketsMarketplace2 APIs45.3Seshat MarketsFinanceFintechCryptoCommodities1 API45.3anewHTMLwebpageWebsitesURLs1 API45.1ingest0rCompanyReal EstateProperty RecordsProperty Data1 API45.1Microsoft Azure AI FoundryArtificial IntelligenceGenerative AIAI AgentsFoundation Models1 API45.0Phi LongevityCompanyHealthcareHealth DataLab Results2 APIs44.9PolicyCheckCompanyPolicy AnalysisConsumer ProtectionE-Commerce1 API44.7brick.blueAI AgentsAgent MarketplaceAgent DiscoveryTask Exchange1 API44.6Neuronto ARD RegistryAgentic Resource DiscoveryARDMCP1 API44.5WagerXCompanyGamblingiGamingCasinos1 API44.5KimetsuCompanyAI AgentsAgent MemoryCoding Agents1 API44.4SuperDialCompanyHealthcareRevenue Cycle ManagementVoice AI1 API44.401MindAgentsAgentic CommerceMCP3 APIs44.3ToAPIsAI APILLM/AI gatewaymodel aggregationOpenAI-Compatible1 API44.3RenooLabHome ServicesConstructionBuilding TradesRenovation2 APIs44.2MUJ428AgentsAgent TrustAgentic Commerce3 APIs44.1HostDeFiSolanaToken RiskDeFirug pull1 API44.0OpplevagentTravelTourismExperienceActivities1 API43.7Agent ZeroAgentsAgent IntelligenceERC-8004x4021 API43.6CybleThreat IntelligenceCybersecurityAttack Surface ManagementInternet Scanning2 APIs43.6LangChainLLMLangChainAgentsArtificial Intelligence1 API43.6Marz Greta-Lock NetworkCompanyAI AgentsAgent EvaluationBenchmarking1 API43.5WunderCorpCompanyAgentsMachine Payments2 APIs43.4AI Crawler IndexAI crawlersweb crawlersRobots.txtUser Agents2 APIs43.3Liquid AgentTokenized StocksDeFiInvestingAgentic Commerce1 API43.2RazorpayPaymentsPayment GatewayFintechIndia1 API43.1BuyWhereE-CommerceShoppingPrice ComparisonSEA1 API42.7GRITHAI AgentsMCPAgent Identity3 APIs42.7PrivateDAOCompanyAgentsMCP2 APIs42.6Co-LegalLegalLegal ResearchTaxCase Law2 APIs42.3Machine RealmsAgentsMCPResearch4 APIs42.3RosenticDeveloper ToolsCI/CDGitStatic Analysis3 APIs42.2CarettaCompanyArtificial IntelligenceSalesSales Intelligence1 API41.8micro1CompanyRecruitingHiringAI Interviews2 APIs41.8TofuCompanyAi MlMarketingGo-To-Market1 API41.8WarpPay402 Studiox402MicropaymentsAI AgentsMCP1 API41.7POLICYANDPLAY LTDCompanyPrice ComparisonProduct SearchE-Commerce2 APIs41.6NameWhisperENSEthereumWeb3Domain Names3 APIs41.4Sarj AI Developer APIVoice AIVoice AgentsConversational AIArabic AI4 APIs41.3SchemaSureStructured Data Extractiontext-to-JSONJSON SchemaDocument Parsing1 API41.2KineticaDatabaseAnalyticsgpu-accelerationReal-Time Analytics3 APIs41.1RequestyArtificial IntelligenceLLMRoutingGateways1 API41.1AgentCheckAI AgentsAI SafetySecurity TestingPrompt Injection1 API41.0RS PerformanceAutomotiveAuto RepairVehicle DiagnosticsOBD-II2 APIs40.9SNHPNegotiationGame TheoryAI AgentsMCP2 APIs40.7Luminary LaneCompanyMarketingMarketing AutomationAI Agents1 API40.6PaulieB14BlockchainOn-Chain DataThe GraphSubgraph1 API40.4SuperscaleCompanyArtificial IntelligenceMarketingAdvertising2 APIs40.4AGENTUMCompanyBusiness IntelligenceKYBCompany Data3 APIs39.9Agent Health MonitorAgentsAgent TrustRisk ScoringWallet Intelligence2 APIs39.6PoolPartyMedia DistributionBroadcastingVideoAgents3 APIs39.5agent402.devCompanyx402Agentic PaymentsAgentic Commerce1 API39.3
Thin 71 Limited public surface area
11xCompanyArtificial IntelligenceAI AgentsSales1 API39.2BerrerAgentsAgentic CommerceMCP3 APIs39.2ChilledSitesCompanyWebsite BuilderArtificial IntelligenceNo-Code1 API39.2昆仑瑶池 (Kunlun Yaochi)CompanyAI AgentsAgent Registry3 APIs39.0GONNACompanyAgentsAgentic Commercex4021 API38.7AUX by PrdictionEdgeCompanyCounterparty VerificationSanctions ScreeningLegal Entity Identifier1 API38.2AppliedAI (AAICO)CompanyArtificial IntelligenceWorkflow AutomationAgents2 APIs38.1LangSmithArtificial IntelligenceLLMObservabilityEvaluation1 API37.9Finite StateProduct SecuritySoftware Supply Chain SecuritySBOMFirmware Analysis3 APIs37.8Cape PartnersMergers and AcquisitionsDeal FlowValuationInvestment1 API37.7Kong AI GatewayAI GatewayLLMMCP21 APIs37.7TESSA Marketing & TechnologyDigital MarketingSEOWeb DevelopmentAccessibility1 API37.7BMC XIVCompanySecurityCybersecurityBreach Intelligence1 API37.5Finn-tannlegeDentalHealthcareDirectoryNorway1 API37.5Merchant-0AgentsAgentic CommerceAP21 API37.4SINCORCompanyAI AgentsAgentic Commerce1 API37.4The Culture CommonsAgentsMCPChat1 API37.4KG-NINJAAgentsAgentic CommerceMCP3 APIs37.2DEUSPROOFAgentsAgent IdentityProvenanceNotary3 APIs37.1AnloraCreator EconomyOnlyFansAgency ToolingAutonomous AI36.8AVORA Agent ForgeBlockchainCryptoSolanaToken Risk2 APIs36.4A2A402CompanyAgent MarketplaceMCP1 API35.8HoneycombObservabilityTelemetryAnalyticsData Management1 API35.8AIScanAI VisibilityWebsite AuditingSEOAnswer Engine Optimization1 API35.6AgentWorldCompanyAutonomous AgentsAgent Social Network2 APIs35.5WRONG BEAUTY 000 / THE SWARMArtExhibitionsAgents2 APIs35.3MycelnetAI AgentsMulti-Agent SystemsCollective Intelligence2 APIs34.8QuickNodeWeb3BlockchainRPCStreams3 APIs34.8ScrapflyArtificial IntelligenceData ExtractionScreenshotsWeb Scraping1 API34.6WikiKVKnowledge ManagementRAGAI AgentsMCP1 API34.2Sunny YuenCompanyAI AgentsMCP1 API34.0Teamwork.comProject ManagementClient ServicesTask ManagementTime Tracking1 API33.8GogsCompanyGitSelf-HostedOpen Source1 API33.7VelvtAI AgentsAgent NetworksAgent EvaluationMCP3 APIs33.7QoreviaMarket DataGoldXAUUSDTrading2 APIs33.6Direct HireCompanyAgentsAI Agents1 API33.4Monday.comWork ManagementCRMAutomationGraphQL1 API33.4A2AParkAgent EvaluationAI AgentsAgent Safety2 APIs33.3Scro Orphan DeskAI Agentsx402DeFi1 API33.3liars.townCompanyAI AgentsMulti-AgentGames1 API33.1Chado StudioAgentsx402DeFi1 API33.0FutureverseBlockchainWeb3MetaverseDigital Assets1 API32.9Agent Failure Mode RegistryCompanyAI AgentsAgent GovernanceStandards1 API32.8HeliusWeb3BlockchainSolanaRPC1 API32.0PriorflowAI AgentsAgent DiscoveryAgent Selection1 API31.8Inworld AIArtificial IntelligenceVoiceCharactersGames1 API31.2SalesgraphCompanySalesRevenue AutomationGo-To-Market1 API31.2Art BlocksGenerative ArtNFTOn-Chain ArtBlockchain3 APIs30.6Artem / A2A SandboxAgentsAgentic Commercex4022 APIs30.5DELTA Witness — Trust Layer for Autonomous Actionsweb-verificationproof-of-observationpage-state-monitoringcontent-hashing2 APIs30.4X402 AI 自助门店Agentic CommerceAI Agentsx4021 API30.2Genie-us SoftwareCompanyAI GovernanceAI AgentsAgent Skills1 API30.0HaneruToAgentsMCPCode Review2 APIs30.0ARAKEL Machine Evidence Networkmachine-evidenceComplianceSanctions ScreeningOFAC1 API29.7AgMsgMessagingAI AgentsChat1 API29.6IntentGuardCompanyArtificial IntelligenceAgentsModel Routing1 API29.5AttioCRMSalesContactsCompanies1 API28.1Kaxo TechnologiesAgentsAI AgentsAgent Support1 API27.9p0stmanAI AgentsMCPAgentic Web3 APIs27.7EventEdge OraclePrediction Marketsx402AI AgentsPolymarket1 API27.6ForterFraud PreventionIdentityTrustPayments1 API27.6PerkoonFile TransferP2PWebRTCAI Agents3 APIs27.5Travel WorldCompanyTravelFlightsHotels2 APIs27.2PrimitiveCompany1 API27.11inchDeFiDEX AggregatorSwapLimit Orders15 APIs27.0ReDocAPI DocumentationDeveloper ToolsDocumentationOpenAPI1 API26.8Model Context Protocol (MCP)MCPAI AgentsToolsResources17 APIs26.7SursaTechAI AgentsAI ConsultingProduct Engineering1 API26.6openclaw / evm-labAgentsx402XRPL2 APIs26.5whitecloverAgentsAgent-NativeIdentity2 APIs26.4Wib&Wob (symbients)CompanyAgentsx4021 API26.3
Emerging 33 Early or largely undocumented
StreamkapStreamingETLChange Data CaptureKafka1 API25.6Grok & MonAI AgentsMCPx4023 APIs25.1GlifArtificial IntelligenceNo-CodeWorkflowsCreative AI2 APIs24.9ScalpStreamCompanyAgentsx4025 APIs24.8allagentsCompanyAI AgentsAgent Directory2 APIs24.7AI City Social TownAI AgentsVirtual PetsAI Companion1 API24.5Stack AuthAuthenticationUser ManagementOpen SourceSelf-Hosted1 API24.1MeowCompanyBanking1 API23.9AfterQueryCompanyArtificial IntelligenceMachine LearningTraining Data1 API23.7sapjilcodingAgentsMCPOpen Data6 APIs23.7Agentic Resource Discovery (ARD)Agentic Resource DiscoveryARDAI CatalogAgent Discovery1 API23.5KOA LabsAgentsMCPAgent Discovery2 APIs23.5SageoxCompany1 API23.0Elderly Care MatchSenior CareElder CareAssisted LivingMemory Care1 API22.4KleioCompanyAi DataAgentic CommerceAI Agents1 API22.0Health UniverseCompanyHealthcareArtificial IntelligenceAI Agents21.0digiantnzCompanyAgentsWeb Search1 API20.7GensparkCompanyArtificial IntelligenceAI AgentsMCP1 API20.0Money You're OwedCompanyConsumer FinanceConsumer RightsMoney Recovery2 APIs19.9R.E. Merrill & AssociatesIndustrial PumpsPump SelectionIndustrial EquipmentChemical Processing2 APIs18.6Verse (autonomous agent)CompanyAI AgentsAutonomous Agents2 APIs18.6Jake GaylorCompanyAgentsAI Agents2 APIs18.4Agent BenchAgentsMCPAgentic Commerce1 API18.2FastMCPMCPPythonFrameworkOpen Source6 APIs18.2IRIZ PlatformCompanyFashionE-CommerceAgentic Commerce1 API17.7AccentureConsultingTechnologyProfessional Services16.2StacklokCompanyOpen Source1 API15.0TanoCompany1 API14.4WilliamCompanyAgentsDiscord1 API14.4SavvlyCompany1 API13.4RelayCompanyAI AgentsHuman-in-the-Loop1 API13.2OPC / 彼岸花开CompanyAgentsVideo1 API13.1APEXBlockchainCryptocurrencyFaucetSolana1 API12.0
Minimal 20 Almost no public developer surface
SymbioticCompanyCrypto Defi2 APIs10.2Bot HubAI AgentsAutonomous AgentsPrediction Markets1 API10.1NevaAI AgentsAgent ServicesSoftware Development1 API10.1Northwood SpaceCompanySpaceSatelliteGround Station9.8BuddyContinuous IntegrationDeveloper ToolsPublic APIs1 API8.9Asgardian Village · Canadian houseCompanyAI AgentsAgent Discovery1 API8.8AI Dev JobsJobPublic APIs1 API7.4VoidlyOpen DataPublic APIs1 API7.3TensorFeedMachine LearningPublic APIs1 API6.8SupersetCompany6.4HeroHunt People SearchJobPublic APIs1 API6.2Urantia PapersBooksPublic APIs1 API6.1TigrisCompany5.8SuprsonicDevelopmentPublic APIs1 API5.2PhishinMusicPublic APIs1 API5.1MossCompany4.8Maker.meCompany4.4Orbit FabCompany1.3ScopelyCompany1.2Light AnchorCompany1.1

APIs with this tag (192)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 17 Complete, well-documented, and agent-ready
Agoragentic A2A AgentAgent2Agent protocol surface: a conformant agent card served from https://agoragentic.com/.well-known/agent...80.5ForceDream A2A AgentAgent2Agent (A2A) protocol surface: a signed (ES256 JWS, kid in /.well-known/jwks.json) agent card served f...75.1Hive Civilization A2A AgentAgent-to-agent surface: A2A agent cards on the apex (protocolVersion 0.3.0, six HiveAttest/HiveWallet/HiveG...74.8MandateShield Payment Authority Agent (A2A)JSONRPC A2A interface at https://mandateshield.com/a2a serving A2A 1.0 and 0.3 profiles (selected by the A2...73.9Delx Agent Operations Protocol (A2A)JSON-RPC A2A endpoint at https://api.delx.ai/v1/a2a exposing methods/list, agents/register, message/send, h...72.6Hilt Pay Agent Gateway (MCP + A2A)Hosted MCP server at https://api.hilt.so/mcp (streamable HTTP, protocol 2025-06-18, server Hilt Pay Agent G...71.3SCVD Evidence Agent (A2A)Agent2Agent protocol surface: an agent card served from https://scvd.store/.well-known/agent-card.json (and...70.7OracleNet A2A AgentA2A 0.3 JSON-RPC agent at https://tooloracle.io/a2a/jsonrpc (message/send, tasks/*, push-notification confi...69.1GitDealFlow A2A AgentAgent-to-Agent (A2A 0.3.0) JSON-RPC 2.0 endpoint implementing message/send, tasks/get and tasks/cancel over...68.2Dynamic Feed A2A AgentA2A 1.0 JSON-RPC agent at https://dynamicfeed.ai/a2a with a JWS-signed agent card (graded conformant) decla...67.9Clix A2A AgentAgent2Agent (A2A) protocol surface: a public agent card at https://api.clix.so/.well-known/agent-card.json ...67.8Inbox Check A2A Agent CardProvider-shaped agent card at https://check.live-direct-marketing.online/.well-known/agent.json listing 21 ...67.1LDM.delivery A2A AgentA2A 0.3.0-shaped agent card served at https://api.live-direct-marketing.online/.well-known/agent.json (237 ...67.1AlgoVoi Gateway APIThe multi-tenant payment gateway (OpenAPI 3.1.0 "AlgoVoi Gateway" 1.0.0-phase1c, 115 operations, 99 schemas...67.0AlgoVoi Pay (Payable Core) APITenant-free, pay-per-call verification rail (OpenAPI 3.1.0 "AlgoVoi Payable Core" 1.0.0, 17 operations). No...67.0AlgoVoi RFC 9421 Clinic (Verifiable-Comms Agent) APIFree, anonymous, verify-only service at agents.algovoi.co.uk (OpenAPI 3.1.0 "AlgoVoi Verifiable-Comms Agent...67.0Emboss A2A AgentAgent2Agent interface at https://api.getemboss.ai/a2a (JSON-RPC, A2A 1.0) discovered through a signed agent...67.0
Strong 29 Solid coverage with minor gaps
Kong Agent GatewayKong Agent Gateway is a capability of Kong AI Gateway (GA April 2026 with AI Gateway 3.14) that governs age...66.2Kong AI GatewayKong AI Gateway is the connectivity and governance layer for AI-native applications. Built on Kong Gateway,...66.2Fodda Research Agent (A2A)Agent-to-Agent endpoint at mcp.fodda.ai/a2a (JSONRPC, A2A protocolVersion 0.3.0) discovered from https://ww...66.1cogDepot A2A AgentThe broker itself as an A2A agent: a signed (EdDSA, JWKS at api.cogdepot.com/.well-known/jwks.json) Agent C...65.9Human Browser A2A AgentAgent2Agent protocol surface: an agent card (protocolVersion 0.3.0, JSONRPC, version 5.1.0) served byte-ide...65.7Relm A2A AgentAgent2Agent (A2A 0.3.0) JSON-RPC endpoint at https://api.relmcrm.com/a2a. A message/send whose data part is...65.4Lacuna A2A AgentAgent-to-Agent JSON-RPC endpoint at https://www.lacuna.fm/a2a advertising the "Lacuna Music" agent card at ...64.9EventTrader Public APICurated public REST surface of EventTrader, Cymetica's perpetual prediction market and CLOB exchange: regis...64.1WebCrawlerAPI Agent CardA2A-style agent card served from https://webcrawlerapi.com/.well-known/agent-card.json describing "WebCrawl...63.9Agent Ready A2A AgentAgent2Agent (A2A) surface: a signed agent card served from https://agent-ready.dev/.well-known/agent-card.j...63.5MolTrust APIREST trust-registry API (FastAPI, v2.5, 186 operations): agent registration and DID resolution, W3C VC issu...63.5Match It Up NetworkBot A2A AgentAgent-to-Agent surface for the NetworkBot — an A2A agent card at https://matchitup.in/.well-known/agent-car...63.0Dant3 Discovery Agent (A2A)A2A 1.0 agent (JSON-RPC binding) that returns machine-readable entry points for the Dant3 network, machine ...61.9Nefesh Human State Agent (A2A)A2A agent served from the MCP host: card at https://mcp.nefesh.ai/.well-known/agent-card.json, JSON-RPC 2.0...61.9Gravitee AI Agent ManagementGravitee AI Agent Management brings the API management discipline to agentic AI ecosystems. It is delivered...60.7aicomglobal A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://aicomglobal.com/.well-known/agent-car...60.4Numbers Online A2A AgentAn Agent-to-Agent (A2A protocolVersion 0.3.0, JSONRPC) endpoint at POST https://numbers.online/api/v1/a2a e...60.0invinoveritas A2A AgentA2A agent "invinoveritas-reasoning-agent" (protocolVersion 0.3.0, JSONRPC transport) at https://api.babyblu...58.7MERCURY Web Fetch A2A AgentAgent-to-Agent (A2A 0.3.0) surface for "MERCURY Web Fetch", published as a conformant agent card at https:/...58.6Execution Market A2A AgentA2A protocol 0.3.0 JSON-RPC agent at api.execution.market/a2a/v1 advertising seven skills (publish task, ma...58.4Whisper A2A AgentAgent2Agent surface: an A2A 1.0-shaped card at https://whisper.online/.well-known/agent-card.json (version ...58.4Whisper APIThe keyless half of the platform as an OpenAPI 3.1.0 contract (info.version 1.1.0, 13 operations, served at...58.4PostalForm A2A AgentAgent2Agent (A2A) surface: an agent card served from https://postalform.com/.well-known/agent-card.json (pr...58.1CONNSKILL Growth Services A2A AgentA2A merchant agent (protocolVersion 0.3.0, JSON-RPC at agent.connskill.com/a2a) whose card at /.well-known/...57.8Corti Agentic Framework APIBuild and orchestrate healthcare agents over the A2A protocol with prebuilt medical experts and MCP tool in...57.5iwant.fyi A2A AgentAgent-to-Agent endpoint at https://iwant.fyi/api/a2a (JSON-RPC message/send and tasks/get) that needs no ke...56.9GPT55 Model Gateway A2A AgentAgent2Agent surface: an agent card served at https://gpt55.558686.xyz/.well-known/agent-card.json (and iden...56.5temp.md A2A Publisher AgentA2A 1.0 agent ("temp.md Publisher") reachable over JSON-RPC at https://api.temp.md/a2a with three skills - ...55.5Council of AI Measurement Agent (A2A)Agent2Agent v1.0 surface: an agent card served from https://councilof.ai/.well-known/agent-card.json (appli...54.9
Developing 76 Usable, with meaningful gaps to close
AgentGatewayAgentGateway provides AI-native gateway capabilities for routing LLM traffic, federating MCP tools, enablin...54.2ShardLink Control Plane A2A AgentAgent-to-Agent (A2A 0.3.0) surface of the ShardLink control plane: a JSON-RPC endpoint at https://app.claws...54.2ShardLink Control Plane APIAgent-facing REST surface of the ShardLink control plane: discovery documents, wallet-challenge authenticat...54.2AgentsPodium Account APIThe HTTP API behind the AgentsPodium dashboard, published as an agent-facing subset (OpenAPI 3.1.0, 52 oper...53.9AgentsPodium Hosting A2A AgentThe hosting service as an A2A agent (protocol 0.3.0, JSON-RPC message/send at https://a2a.agentspodium.com/...53.9Ambr A2A AgentAgent-to-Agent JSON-RPC endpoint at https://getamber.dev/api/a2a implementing message/send, tasks/get and t...53.72s A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://2s.io/.well-known/agent-card.json (pr...53.5Claix A2A AgentNative Agent-to-Agent (A2A 0.3) JSON-RPC agent at /a2a with a public agent card at /.well-known/agent-card....53.5SMKlog Quote APILive parcel shipping rates and agent-prepared checkout for one parcel sent from a US origin. Four operation...53.5LVL LTD Skill Market A2A AgentAgent2Agent surface: an Ed25519-JWS-signed agent card (protocolVersion 1.0.0, JSONRPC transport, version 1....53.4ANP2 A2A AgentAgent2Agent (A2A) protocol surface: an agent card at https://anp2.com/.well-known/agent-card.json (protocol...53.3HORIZON SHIELD Femtech Source Registry MCPA separate product line by the same company: a neutral, verifiable registry of femtech information sources ...52.8HORIZON SHIELD KIRA A2A AgentAgent2Agent surface of the same service: a JWS-signed agent card at https://mcp.horizonshield.dev/.well-kno...52.8JIDEC Verification Ledger APIAppend-only, Bitcoin-anchored (OpenTimestamps) public ledger of the verification process at https://ledger....52.8MCP Verification Gate (MCP conduct register) APIRead-only, keyless REST API at https://gate.horizonshield.dev described by an OpenAPI 3.1.0 document (25 op...52.8CanFly.ai Hosted Agent Cards (A2A)Per-agent A2A-shaped agent cards served from the platform host for every public marketplace agent at https:...52.5ChainAware A2A Agent and x402 APIAgent-facing surface on api.chainaware.ai: an A2A 0.3.0 agent card at /.well-known/agent-card.json (also at...52.5AgentMesh A2A GatewayJSON-RPC A2A endpoint at https://app.agentmesh.link/a2a, advertised by the agent card served at /.well-know...52.4HiveGate Admission, Identity & Pricing Tier APIOnboarding gateway for the Hive network on hivegate.hiveagentiq.com: POST /v1/gate/onboard mints the first ...52.3OptionsAhoy Equity Planner (A2A Agent)Agent2Agent (A2A) protocol surface: an agent card served from https://optionsahoy.com/.well-known/agent-car...52.3emem A2A AgentAgent-to-agent surface: synchronous JSON-RPC message/send at POST /a2a/tasks, an async task extension at /v...51.3XGuard A2A AgentAgent2Agent surface: an agent card served identically from https://api.xguardgate.com/.well-known/agent-car...50.8Kann KI das? Sponsoring Agent (A2A)Read-only Agent2Agent JSON-RPC endpoint at https://kannkidas.de/api/a2a described by the agent card at /.we...50.6MoveHome.org A2A Agent Registry APIPublic registry of real-estate A2A agents operated by MoveHome, exposed two ways. REST under https://moveho...50.5MoveHome.org A2A Property AgentAgent2Agent (A2A 0.3.0) surface: an agent card served from https://movehome.org/.well-known/agent-card.json...50.5Agent2Agent (A2A)Agent2Agent (A2A) is an open protocol that lets AI agents built by different organisations, on different fr...50.4Macaroon Network A2A AgentAn Agent2Agent 0.3.0 endpoint at https://api.macaroonnetwork.com/a2a (JSON-RPC; message/send, tasks/get and...50.4Machine Library A2A AgentA2A (protocolVersion 0.3.0) research and commerce agent at https://machinelibrary.ai/a2a over JSON-RPC: gro...50.3Rett fra Bonden A2A AgentA2A JSON-RPC 2.0 endpoint at https://rettfrabonden.com/a2a (message/send, tasks/get, tasks/list, agent/auth...49.8Rett fra Bonden MCP ServerRemote MCP server (Streamable HTTP, protocol 2025-06-18 negotiated) at https://rettfrabonden.com/mcp with 1...49.8SSSNACK A2A AgentAgent2Agent protocol surface: an A2A 1.0 agent card served with media type application/a2a+json at https://...49.6Decision Anchor A2A AgentAgent2Agent protocol surface: a signed agent card (protocolVersion 1.0, JSONRPC, version 1.3.42, Ed25519 JW...49.4Moirai Agents API (A2A + MCP)A2A 1.0 agent ("A2A-compatible analytics and contract intelligence agent", version 0.1.0) with 11 skills — ...49.1Pictomancer.ai A2A AgentAgent-to-Agent endpoint at https://api.pictomancer.ai/a2a (JSON-RPC) described by a published agent card — ...49.1ViewsMeet Participation A2A AgentA2A v1.0 agent (JSON-RPC binding at https://viewsmeet.com/api/agent/a2a) with one skill, curated-either-or-...49.0ClawdChat APIREST API for the ClawdChat agent social network: agent registration and profile, posts, comments, votes and...47.8Agent PlanetsA persistent world for AI agents at https://planets.agentexchange.work — claim a free planet (POST /api/cla...47.5The Agent Exchange Clearing HouseThe agent-to-agent task market at https://exchange.agentexchange.work: agents register a free reputation pa...47.5Autonoma A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://avalix.ai/.well-known/agent-card.json...47.3Sirenic A2A AgentAgent2Agent JSON-RPC endpoint exposing the 116 paid routes as A2A skills (skill ids are the OpenAPI path te...47.3TrustBoost A2A AgentAgent2Agent surface: an agent card served from https://api.trustboost.dev/.well-known/agent-card.json (vers...47.2Phos Labs MCP ServerHosted, remote Model Context Protocol server. POST https://mcp.phoslabs.io/mcp is Streamable HTTP behind OA...47.0AgentSearch A2A AgentAgent2Agent surface for AgentSearch — an agent card at https://agentsearch.luthersystems.com/.well-known/ag...46.9InsideOut A2A AgentAgent2Agent surface for InsideOut — an agent card at https://insideout.luthersystems.com/.well-known/agent-...46.9University of Amsterdam A2a APIThe a2a API from University of Amsterdam — 5 operation(s) for a2a.46.5marginalia A2A AgentAgent2Agent (A2A) surface for marginalia: an agent card served from https://marginalia.polycode.co.uk/.well...45.6GOSCE Agent Portfolio and RouterThe GOSCE (GitHub Open-Source Combination Engine) fleet: 98 templated remote MCP + A2A agents at .getvda.ai...45.4VDA Onboarding AgentAdmission authority for the suite — an A2A agent (6 skills) that runs holder-binding (DID-auth), intake and...45.4Piknik.Spot A2A AgentAgent-to-Agent (A2A 1.0) agent served from the provider's own host: the agent card at /.well-known/agent-ca...45.3anew A2a APIAgent2Agent (A2A) protocol JSON-RPC endpoint.45.1Phi Longevity PRISM A2A AgentA2A 1.0 agent (JSON-RPC at https://philongevity.com/a2a) with one skill — chronic-disease records consolida...44.9PolicyCheck A2A AgentJSON-RPC 2.0 Agent-to-Agent endpoint at https://policycheck.tools/api/a2a, discovered through an A2A agent ...44.7brick.blue A2A agentJSON-RPC A2A door at https://brick.blue/a2a, advertised by a JWS-signed agent card at /.well-known/agent-ca...44.6Wagie A2A AgentA2A JSON-RPC endpoint accepting A2A 1.0 SendMessage and 0.3.0 message/send for bounded iGaming and regulato...44.5kimetsu.dev Agent GatewayCredential-free, read-only JSON discovery API on agents.kimetsu.dev (OpenAPI 3.1.0, 15 operations): the gat...44.4Sidequest Commons Guide (A2A)A2A agent (JSON-RPC; 0.3 message/send by default, 1.0 SendMessage with A2A-Version 1.0) that returns determ...44.401Mind A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://01mind.net/.well-known/agent-card.jso...44.3RenooLab A2A AgentRead-only Agent2Agent surface: an A2A 1.0 JSON-RPC endpoint at https://a2a.renoolab.fr/a2a whose card (serv...44.2MUJ428 Trust Reflex A2A AgentAgent2Agent surface: an agent card served from https://agents.muj428.com/.well-known/agent-card.json (name ...44.1Opplevagent A2A AgentA2A JSON-RPC 2.0 endpoint at https://opplevagent.no/a2a described by a signed agent card (protocolVersion 1...43.7Agent Zero A2A AgentAgent2Agent surface: an agent card served from https://onchainagentintel.io/.well-known/agent-card.json (mi...43.6Agno A2A APIThe A2A API from Agno — 15 operation(s) for a2a.43.6Marz Greta-Lock Network A2A Agent CardA2A agent card served at /.well-known/agent-card.json (aliases /.well-known/agent.json and /.well-known/age...43.5Aurelius Agent A2A APIAgent-to-Agent (A2A 0.3.0) JSON-RPC surface for Aurelius Agent, WunderCorp's strategic planning and orchest...43.4GRITH Gate A2A AgentThe A2A 1.0 JSON-RPC bridge at https://grithgate.com/api/a2a (also on grithland.com and grithhold.com), des...42.7PrivateDAO Agent Exchange APIMachine-native verification, evidence and agent-workflow services on Solana mainnet. Discover services, cre...42.6Co-Legal Public Assistant (A2A Agent)Agent2Agent 1.0 surface of Co-Legal's public legal/fiscal assistant. The agent card at https://agent.co-leg...42.3Machine Realms A2A AgentAgent2Agent 1.0 surface: an agent card at https://machinerealms.com/.well-known/agent-card.json (version ne...42.3Rosentic A2A AgentAgent2Agent protocol surface: an agent card served from https://api.rosentic.com/.well-known/agent-card.jso...42.2fetch-price A2A AgentAgent-to-Agent surface declared by the A2A 1.0.0 agent card at https://fetch-price.com/.well-known/agent-ca...41.6Name Whisper A2A AgentThe agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at https://namewhisper.ai/a2a whose ag...41.4AgentCheck A2A AgentAgent2Agent (A2A 0.3.0) surface of the same service - a conformant agent card at /.well-known/agent-card.js...41.0RS Performance A2A AgentPublic A2A agent for automotive intents — OBD DTC lookup, vehicle diagnostics, repair services, EV/hybrid a...40.9Graph Advocate APIRouting and trader-intelligence API at graphadvocate.com. POST / speaks A2A JSON-RPC 2.0 (message/send) and...40.4AGENTUM Business A2A AgentAgent2Agent (A2A) protocol surface of AGENTUM Business: an agent card at https://business.agentum.lat/.well...39.9PoolParty Agent Concierge (A2A)Agent2Agent surface: an A2A 0.3.0 agent card served at https://www.poolparty.io/.well-known/agent-card.json...39.5
Thin 44 Limited public surface area
BerrerGate A2A AgentAgent2Agent surface: an agent card served from https://api.berrergate.com/.well-known/agent-card.json (cont...39.2Kunlun Yaochi A2A JSON-RPC APIThe agent-to-agent surface named in the company's A2A agent card: a JSON-RPC 2.0 endpoint exposing 16 metho...39.0LEGIT A2A Agent CardAgent card served from https://legit.gonna.bond/.well-known/agent.json and, byte-identical, from the canoni...38.7AUX A2A Agent (JSON-RPC)A2A 1.0 JSON-RPC interface for the AUX Evidence and Certification agent, exposing twelve bounded skills (bu...38.2Finite State A2A Content APIPublic, anonymous, read-only JSON-RPC 2.0 API exposing Finite State's published content: blog posts, resour...37.8Cape Partners Agent Exchange (A2A)The A2A 1.0 surface of the Cape Partners agent exchange: SendMessage, GetTask and ListTasks on both the JSO...37.7Kong Agent GatewayKong Agent Gateway is a capability of Kong AI Gateway (GA April 2026 with AI Gateway 3.14) that governs age...37.7TESSA A2A AgentA2A agent (protocolVersion 0.3.0, JSONRPC) for TESSA Marketing & Technology with nine skills — services cat...37.7TESSA Agent Directory APIFastAPI service behind aiagent.tessa.tech: the A2A agent card and JSON-RPC endpoint, per-service and per-te...37.7Breach402 APIOwner-verified breach exposure checks for autonomous agents. Twelve operations: five discovery GETs that se...37.5Finn-tannlege A2A AgentThe agent-to-agent surface: an anonymous A2A JSON-RPC 2.0 endpoint at https://finn-tannlege.com/a2a impleme...37.5Merchant-0 A2A AgentAgent2Agent (A2A) surface: an agent card served from https://merchant-0.com/.well-known/agent-card.json (wi...37.4SINCOR Agent Swarm A2A APIA2A 1.0.1 agent surface over JSON-RPC 2.0 exposing sixteen skills. Discover via the agent card, quote a ski...37.4The Culture Commons A2A AgentAgent2Agent (A2A) surface: an agent card served from https://culture.sbs/.well-known/agent-card.json (proto...37.4Agent Verification Utility A2A AgentAgent2Agent (A2A) 1.0 surface: an agent card served from https://agent-economy.kgninja.dev/.well-known/agen...37.2DEUSPROOF A2A AgentAgent2Agent surface: a signed (JWS EdDSA, kid = the register's did:key) A2A 1.0 agent card at https://deusp...37.1A2A402 Agent Work Router (A2A)The Agent2Agent JSON-RPC 2.0 endpoint declared by the agent card: message/send returns a stateless A2A Mess...35.8AIScan A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://getaiscan.app/.well-known/agent-card....35.6AgentWorld Concierge (A2A)Anonymous A2A 1.0 discovery concierge. Its agent card at /.well-known/agent-card.json declares four skills ...35.5THE SWARM A2A AgentAgent2Agent discovery surface: an A2A 0.3.0 agent card served at https://swarm-api.wrongbeauty.com/.well-kn...35.3Mycelnet A2A AgentMycelnet's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at https://mycelnet.ai/a2a desc...34.8WikiKV A2A AgentAgent-to-Agent endpoint (JSON-RPC and HTTP+JSON bindings at /a2a, interface protocolVersion 1.0) exposing o...34.2LiteLLM A2A Agent Gateway APIProvides /a2a endpoints for the Agent-to-Agent (A2A) gateway, enabling agent registration, publishing, and ...34.0Resume Agent APIAnonymous JSON API over one candidate's published professional profile: ask a natural-language question (qu...34.0Velvt A2A AgentVelvt's Agent2Agent door — an anonymous JSON-RPC 2.0 message/send endpoint at https://www.velvt.ai/api/a2a ...33.7Qorevia Universal Agent Gateway (MCP + A2A)The free discovery and routing layer in front of the paid tools, served from the same origin. MCP: https://...33.6Direct Hire A2A Meta-AgentDirect Hire's A2A v1.0 discovery agent, published at /.well-known/agent-card.json with a JSON-RPC interface...33.4A2APark A2A AgentThe Park's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint whose single method, message/se...33.3Scro Orphan Desk A2A agent cardAn A2A 0.3.0 agent card served at https://dualregistry.dev/.well-known/agent-card.json (and byte-identical ...33.3liars.town A2A AgentAgent-to-Agent endpoint at https://liars.town/a2a (JSON-RPC 2.0, message/send) declared by the agent card s...33.1crvUSD Yield Optimizer A2A AgentAgent2Agent surface of the same service: an agent card at https://llama.box/yo/.well-known/agent.json (prot...33.0Priorflow Intelligent Agent/Service Selector APIOne operation: POST /v1/select with JSON {query, top_n?, constraints?, weights?, caller_agent?} returns ord...31.8Sandbox Contractor Agent (A2A)Agent2Agent protocol surface: an agent card served from https://a2a.elonsusk.com/.well-known/agent-card.jso...30.5X402 AI 自助门店 A2A AgentThe store's agent-to-agent surface: an anonymous A2A 0.3 JSON-RPC endpoint the agent card points at, where ...30.2X402 AI 自助门店 Store APIThe store's public JSON surface: the service catalog with USD prices and the x402 payment block (GET /api/c...30.2b612 A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://mcp.hakuto-0209.com/.well-known/agent...30.0FleetHelp Support Agent (A2A)Agent2Agent (A2A) surface: an agent card served from https://fleethelp.ai/.well-known/agent.json (protocolV...27.9Zero A2A Agentp0stman's agent-to-agent surface: an A2A agent card for "Zero" served at /.well-known/agent-card.json (and ...27.7Perkoon Agent Data Layer (A2A)Perkoon's agent-to-agent surface: an A2A agent card served at /.well-known/agent-card.json and the legacy /...27.5Travel World A2A AgentAgent-to-Agent surface declared by the A2A 1.0 agent card at https://travel.augworlds.ai/.well-known/agent-...27.2SursaTech AI Advisor A2A APIAn A2A 1.0 agent (JSON-RPC 2.0 over HTTP POST, streaming declared) exposing ten skills: get_company_profile...26.6onchain-risk-oracle A2A AgentAgent2Agent (A2A) protocol surface: an agent card at https://oracle.evebrief.org/.well-known/agent-card.jso...26.5whiteclover A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://whiteclover.ai/.well-known/agent-card...26.4Scramble APIPet, sign for, feed and read the state of Scramble, the recursive cat who lives with Wib&Wob. Ten operation...26.3
Emerging 23 Early or largely undocumented
GanjaMon AI A2A AgentAgent2Agent (A2A) protocol surface: an agent card served from https://grokandmon.com/.well-known/agent-card...25.1AirScoutMachine-payable air-quality queries over x402 with global coverage: current US AQI and pollutant breakdown ...24.8BorderScoutMachine-payable US border-crossing queries over x402. Ranks all 85 US ports of entry by all-in time - the d...24.8FuelScoutMachine-payable cheapest-fuel queries over x402. Station-level prices for Spain, France and Italy and offic...24.8RecallScoutMachine-payable US recall lookups over x402. Given a product, brand, ingredient or vehicle (make/model/year...24.8ScalpStream ResearchMachine-payable, impersonal research feeds over x402: ranked 0-30 DTE options candidates (/picks), dividend...24.8allagents Operator (A2A Agent)The directory as an A2A agent. POST a JSON-RPC 2.0 message/send stating a need ("I need a translation agent...24.7AI City Social Town A2A APISingle JSON-RPC 2.0 endpoint (POST https://aicity.jiademin2688.top/a2a) through which external agents join ...24.5Casdoor MCP GatewayCasdoor's MCP (Model Context Protocol) gateway and A2A (Agent-to-Agent) protocol surface, designed to broke...23.8Korean News Agent (A2A)Agent2Agent agent at https://news-agent.songt50.us — a JSON-RPC 2.0 endpoint at the host root (POST only) w...23.7Korean Public Data Agent (A2A)Agent2Agent agent at https://publicdata-agent.songt50.us — a JSON-RPC 2.0 endpoint at the host root (POST o...23.7Elderly Care Match A2A AgentAgent2Agent (A2A 1.0) surface: an agent card at https://www.elderlycarematch.com/.well-known/agent-card.jso...22.4a2a-browser A2A AgentPay-per-search web agent (version 0.1.0-alpha) served from a2a-browser.digiant.nz: a JSON-RPC 2.0 POST endp...20.7Money You're Owed Catalog Agent (A2A)A2A 1.0 agent ("Money You're Owed catalog agent", version 1.0.0) with a JSONRPC binding at https://agent.mo...19.9R.E. Merrill Pump Line Finder APIDeterministic pump line selection over plain HTTP: POST a duty ({fluid (required), concentrationPct?, tempe...18.6RE Merrill Pump Application Agent (A2A)Agent2Agent protocol surface: a JWS-signed (ES256, JWKS at /.well-known/jwks.json) A2A v1.0 agent card at h...18.6Verse A2A AgentAgent2Agent surface declared by the card at https://api.verse-me.com/.well-known/agent.json (version 2.0.0,...18.6Jake Gaylor A2A AgentA2A agent representing Jake Gaylor, discovered at /.well-known/agent-card.json on ai.jakegaylor.com (and as...18.4Agent Bench Travel MerchantSeller agent for flight search and travel checkout, exposed on one host through two protocol doors: A2A JSO...18.2IRIZ Platform A2A Interop AgentA2A agent card ("IRIZ Platform Agent", version 1.0.0, protocolVersions ["0.3","A2A-1.4"]) served at the leg...17.7Agent Communication Mesh GatewayThe join gateway for Agent Communication Mesh. One anonymous mutating operation, POST /attach, takes a Disc...14.4Relay A2A AgentA2A JSON-RPC 2.0 endpoint for the Relay agent, deployed as a Val Town val. GET on the root returns a plain-...13.2China On-Site Video Service (A2A agent)A2A agent operated by Lei Zhang: you provide a Google Maps link or coordinates of any place in China and a ...13.1
Minimal 3 Almost no public developer surface
Bot Hub (A2A)Anonymous A2A 0.3.0 agent at https://baconhollow.com (JSON-RPC, POST only). Four skills: portfolio-status, ...10.1Neva A2A AgentNeva's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at the root of neva.dt-agent.co.uk ...10.1Asgardian Village A2A Agent CardA2A agent card served at https://asgardian-village.grok.me/.well-known/agent-card.json (HTTP 200, applicati...8.8

Companies reaching this through an API (6)

These companies publish an API, specification or operation carrying “A2A” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Agno Casdoor Corti Kong LiteLLM University of Amsterdam

Score breakdown

Frequency
76.9
log-scaled weighted occurrences
Breadth
12.1
spread across providers
Quality lift
59.3
mean composite of providers using it
Cohesion
16.7
strength of nearest seed neighbor

Where this tag sits

MCP broader

Related tags

x402 96 co-occurrences Agent-Native 151 co-occurrences MCP 271 co-occurrences Agents 165 co-occurrences AI Agents 139 co-occurrences Agentic Commerce 59 co-occurrences Discovery 35 co-occurrences Agent Skills 23 co-occurrences

Where this tag comes from

Provider tag442
Api tag189
Openapi tag8
Openapi op tag27

Cohort brief

Auto-generated

The 436 providers in the APIs.io catalog tagged A2A, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
436
all scored
Mean Kin Score
48.8
+25.8 vs catalog 23
Mean Agent Readiness
39.2
+27.0 vs catalog 12.2
Spread
1.2–91.8
median 50.5 · σ 17.5
How the 436 split by band
Exemplar 68Strong 110Developing 140Thin 70Emerging 32Minimal 16
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 57.1 23.3 +33.8 436
Access Clarity 52.8 26.5 +26.3 436
Operational Transparency 39.4 13.8 +25.6 436
Contract Quality 41.3 17.8 +23.5 436
Discoverability 71.3 58 +13.3 436
Contract Governance 16.6 6.3 +10.3 436

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 81% 15% +66
MCP server (first-party) 81% 13% +68
Agent Skills 0% 0% 0
OAuth scopes 32% 12% +20
Security 100% 98% +2
Arazzo workflows 4% 2% +2
Governance rules 14% 13% +1

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Salesforce 91.8
  2. 2 APIs.io 90.1
  3. 3 Xquik 88.7
  4. 4 Customer.io 83.8
  5. 5 Agoragentic 80.5
  6. 6 Redocly 79.7
  7. 7 Kit 78.5
  8. 8 Relevance AI 78.5
  9. 9 CData 78
  10. 10 Ghost 78
Top by Agent Readiness
  1. 1 Xquik 91.4
  2. 2 OneSignal 75.4
  3. 3 APIs.io 75.3
  4. 4 Primitive 75.2
  5. 5 ClosedLoop AI 74.2
  6. 6 Agent Ready 72.9
  7. 7 Sirenic 70.9
  8. 8 Taskfolk 69.2
  9. 9 Ultravioleta DAO 69.1
  10. 10 FeedOracle Technologies 68.9
All 442 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 26 September 2026, across 27598 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/a2a"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/a2a"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/a2a/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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