established · -0.8 market domain

Communications

Score 26.7 / 100 259 providers +46 via APIs 67 APIs Search apis.io →
Workflows using this tag
Microsoft Azure Tag an Existing Resource Group · Microsoft Azure Microsoft Azure Provision a Region-Specific Deployment · Microsoft Azure Microsoft Azure Audit Subscription Resources · Microsoft Azure Microsoft Azure Deploy Template to a New Resource Group · Microsoft Azure Microsoft Azure Resource Group Lifecycle Tag and Inventory · Microsoft Azure Microsoft Azure Select Subscription and List Resource Groups · Microsoft Azure Microsoft Azure Find Resources by Type and Inspect Their Group · Microsoft Azure Microsoft Azure Deployment Status and Resulting Resources · Microsoft Azure
Business capabilities this tag reaches
Customer Service Management 2 Legal Management 1
Variants seen in the corpus: CommunicationCommunications

Providers using this tag (259)

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

Exemplar 19 Complete, well-documented, and agent-ready
TelnyxCPaaSVoiceSMS3 APIs93.5TwilioAuthenticationContact CenterEmail55 APIs90.8InfobipTelecommunicationsCroatiaCPaaSMessaging50 APIs86.9TelesignAuthenticationFraud PreventionPhone Intelligence28 APIs77.0SignalWireCompanyCPaaSVoice2 APIs74.2Microsoft Azure Communication ServicesMicrosoft AzureCPaaSCallingChat22 APIs73.78x8TelecommunicationsUnited StatesCPaaSUCaaS34 APIs73.0FrontAppCompanyCustomer ServiceShared Inbox2 APIs72.3SinchMessagingSMSVoice25 APIs71.6Zoom PhoneTelecommunicationsUnited StatesUCaaSCloud PBX2 APIs69.1VonageMessagingTelecommunicationsVideo Conferencing22 APIs68.8NylasCalendarContactsEmail2 APIs93.9LeadpingLead ManagementSales & marketing automationSMS MessagingA2P 10DLC1 API80.8LoopsEmailEmail APIMarketing AutomationTransactional Email1 API75.1SMTP2GOEmailEmail DeliveryTransactional EmailSMTP1 API71.1CallNodeCompanyVoice AITelephonyPhone Numbers2 APIs69.5CloudTalkCompanyVoiceVoIP1 API68.6MailboxlayerEmailEmail VerificationSMTPMX Records2 APIs67.8EntergramMessagingNotificationCRM1 API66.9
Strong 42 Solid coverage with minor gaps
BandwidthCPaaSVoiceMessaging3 APIs66.4HustleCompanyEnterpriseMessagingSMS1 API65.4Spruce HealthHealthcareHIPAASecure Messaging16 APIs65.1AvayaContact CenterCollaborationArtificial Intelligence40 APIs64.6Orange Business5GArtificial IntelligenceB2BCAMARA12 APIs64.2Phone ComCompanyVoIPTelephonyBusiness Phone2 APIs63.0BlinkCompanyEmployee ExperienceMobileFirstFrontline Workers3 APIs61.5YoodliArtificial IntelligenceCoachingLearning and Development1 API60.2NextivaCompanyVoiceContact Center5 APIs59.4SonetelCompanyTelephonyPhone NumbersVoIP20 APIs59.0KixieCompanySales EngagementVoiceTelephony3 APIs58.9RingCentralUCaaSVoiceVideo1 API58.7WeaveCompanyMessagingPayments1 API58.1ZoomVideoZoomChatCollaboration12 APIs57.1QuoCompanyMessagingSMS1 API55.5NfonCompanyTelecommunicationsCloud TelephonyUCaaS3 APIs55.0SimpleVoIPVoIPUCaaSArtificial Intelligence1 API54.3Fax for AgentsFaxMCPArtificial Intelligence2 APIs66.1WebexCallingCollaborationEnterprise10 APIs66.1GoToWebinarAttendeesCollaborationEvent3 APIs65.7The Mobile First CompanyCompanyTelephonyVoice1 API65.4Microsoft TeamsMicrosoft TeamsChatCollaboration1 API65.1parcelLabPost-PurchaseE-CommerceTrackingReturns2 APIs65.1RingoverCloudVoIPCollaboration2 APIs64.5KudosityMessagingSMSMMSRCS2 APIs64.2Neutrino APIData ValidationData ToolsTelephony2 APIs62.7Amazon Chime SDKVideoMessagingSDK47 APIs62.4ZavuCompanyMessagingSMSWhatsApp1 API62.0CommsHarborEmailTransactional EmailEmail Marketing1 API60.4osis-coMessagingSoftware-as-a-ServiceCustomer Service1 API60.4EZ TextingSMSMarketingText Messaging1 API60.2przypominamy-comCompanySMSPoland1 API58.6SendHubCompanySMSMessagingText Messaging1 API57.9MailerSendEmailTransactional EmailSMTPMarketing1 API57.5SaperlyTelephonyVoiceSMSPhone Numbers2 APIs57.5robase-devSMSOTPAfricaMessaging1 API57.1mailkite-devCompanyEmailSoftware-as-a-Service1 API56.9CommunityMessagingSMSMarketing1 API56.8SentSMSWhatsAppRCSMessaging API1 API56.7unipile-comMessagingIntegrationMulti-Channel1 API56.1SimpleTextingSMSMMSMessagingMarketing1 API54.9AgentPhoneCompanyTelephonyPhone NumbersSMS1 API54.8
Developing 35 Usable, with meaningful gaps to close
BluetickedSouth AfricaWhatsAppSMS1 API53.3CallfireCompanyCloudMessaging13 APIs50.9AptlyCompanyCloud SaasProperty ManagementReal Estate1 API50.3BirdSMSEmailWhatsApp21 APIs49.3Hellou AIArtificial IntelligenceCustomer ServiceWhatsApp1 API49.3DiscordDiscordChatGaming1 API48.0DialArtificial IntelligenceTelephonyMessaging1 API47.3WeavixFrontline WorkersWorkforce ManagementMessaging1 API47.0Zoho CliqMessagingTeam CollaborationChatBots22 APIs46.0Microsoft SkypeMessagingMicrosoftVideo4 APIs45.4ApuchatArtificial IntelligenceMulti-AgentMCP1 API43.3SEDNACompanyShippingMaritimeEmail1 API42.9FynoNotificationMessagingPush Notifications1 API41.4WhippyMessagingSMSEmail1 API41.1AlianzaCompanyCloud CommunicationsVoice2 APIs39.9KumospaceCompanyVirtual OfficeRemote WorkCollaboration1 API54.1Deadsimple EmailEmailArtificial IntelligenceAutomation1 API53.7VeritusCompanyFintechConsumer LendingCollection1 API52.1WherebyVideoReal-TimeWebRTC1 API52.0KaiCallsArtificial IntelligenceVirtual AssistantSmall Business1 API51.6TruecallerCompanyConsumerCaller IDPhone Verification4 APIs50.5proweblook-comVerificationSecurityData1 API50.0AllMCPsDirectoryMCPAI AgentsDeveloper Tools1 API48.5BeeperCompanyConsumerMessagingChat1 API48.5VoiceDockVoice AITelephonyPlatform3 APIs47.4wapiworld-comMessagingWhatsAppDeveloper Platform1 API47.2lovedone-appFamily CareInboxHealthcare1 API47.1engageSPARKCompanyMessagingSMSVoice1 API46.9CommSyncCompanyUnified InboxSMSEmail2 APIs46.4BulkSMSSMSMessagingBusiness1 API44.3HailArtificial IntelligencePhoneSMS1 API43.7confcallCompanyVideo ConferencingAI AgentsEmbeddable Widgets1 API42.8RelaygerArtificial IntelligenceMessagingAgentsPlatform1 API42.5Phone IncCompanyCloudBusiness1 API40.4BurnerCompanyPhone NumbersSMSMMS1 API39.3
Thin 43 Limited public surface area
TruVideoCompanyCommerceVideoMessaging1 API38.8PlivoCPaaSVoiceSMS1 API38.6AgentDMArtificial IntelligencePlatformMCP2 APIs35.4MoviusCompanyMessagingMobile1 API32.3PexipVideoCloudSecurity31.7DialpadVoiceArtificial IntelligenceContact Center1 API31.2MSG91CloudMessagingSMS1 API30.0RR Donnelley And SonsMarketingPrint ServicesDirect Mail29.73CXCompanyVoIPArtificial Intelligence29.0KnocknocCompanyIoTEdge Computing1 API28.3ClickSendSMSMMSVoice1 API28.2sipgateCompanyTelephonyCloud27.1EmitrrHealthcareArtificial IntelligenceMessaging1 API26.3SobotCompanyEnterpriseContact CenterCustomer Service4 APIs39.0Cisco Webex MeetingsCollaborationEnterpriseMeetings1 API38.6MirrorFly Messages APICPaaSChat / Messaging APIVoice API1 API38.1ConfrereCompanyVideoVideo Conferencing1 API37.9MittoMessagingOmnichannelEnterprise6 APIs37.9EsendexSMSMessagingBusiness1 API37.4JustCallVoiceSMSCloud PhoneContact Center1 API37.0TalkJSChatMessagingSDK1 API36.7ChertCompanyMessagingiMessage1 API35.3Muck RackPublic RelationsMedia MonitoringMedia DatabaseJournalists1 API35.2RainbowCPaaSChatVoice3 APIs34.2GroupMeCompanyConsumerMessagingChat1 API32.9SuperhumanCompanyEmailProductivityArtificial Intelligence31.9GatewayAPICompanyMessagingSMS2 APIs31.8Text MarketerSMSMarketingUnited KingdomBusiness31.3TextlaCompanySMSText MessagingBusiness Messaging31.3answeringservicecare-comTelephonyCall CenterVirtualAnsweringCustomer Service1 API30.6SymphonyCollaborationFinancial ServicesMessaging10 APIs30.2AircallVoiceCloud PhoneCRM1 API30.0DocumoFaxCloud FaxDocument DeliveryHIPAA1 API29.8LifesizeCompanyVideo ConferencingCollaboration2 APIs29.5Handover ToolsEncryptionToolsSecurity1 API29.4SMSAPIMessagingSMSMMSVoice1 API29.3ASPSMSSMSMessagingBusiness1 API28.0ExotelCloud TelephonyVoiceSMSIndia1 API27.7NewVoiceMediaCompanyCloudContact CenterCCaaS1 API27.6SightCallCompanyVideoWebRTCRemote Support1 API27.5DyteVideoVoiceReal-TimeWebRTC1 API27.4Cisco Control HubAdministrationCallingCollaboration1 API26.9TextmagicSMSText MessagingMessaging1 API26.9
Emerging 57 Early or largely undocumented
46elksCPaaSSMSMMSVoice1 API25.7SduiCompanyEducationEdTechSchools2 APIs25.7IntelsatSatelliteConnectivityEnterprise2 APIs24.3Motorola SolutionsPublic SafetyVideo SecurityIoT1 API24.2AirPRCompanyPublic RelationsMedia IntelligenceMedia Monitoring1 API23.6OurPeopleWorkforceFrontline1 API23.3VoxerCompanyPush To TalkWalkie-Talkie23.3Africa's TalkingSMSUSSDVoice1 API22.7xMattersIncident ManagementOn-CallAlertingService Reliability1 API22.5CarbyneCompanyEmergency ServicesPublic Safety22.0MeWeCompanySocialPrivacyNetworking19.5AfilnetCompanySMSVoice1 API19.0AuranetworksystemsAviationInfrastructureUnmanned1 API18.9GlobalstarCompanySatelliteIoT15.9Manifest LawCompanyLegalLegal TechCase Management1 API15.3PigeonlyCompanyInmate CommunicationCorrectionsPrison Calls15.2BeekeeperCompanyEmployee EngagementFrontline14.8EasydialCompanyArtificial IntelligenceUnified Communications1 API14.8LaunchNotesChangelogDeprecationProduct1 API14.8CampuswireEducationCollaborationPlatformLMS14.1ModicaCPaaSEnterpriseMessaging13.7RyloCompanyConsumerAccessibilityCaptioning13.4Joya CommunicationsCompanyVideo ChatVideo MessagingMessaging13.2UmonyCompanyComplianceCall Recording13.2TanlaCompanyMessagingPlatform13.1SESSatelliteAerospaceEnterprise12.2IntermediaCloudContact CenterVideo Conferencing5 APIs12.1Astranis Space TechnologiesCompanySatelliteGeo12.0CesiumAstroCompanyHardtechAerospaceSatellite11.7TelesatCompanySatelliteLEO11.6RemindMessagingEducationK-1211.5Sasken CommunicationsCompanyIoTEnterprise11.3PreparedCompanyEmergency ResponsePublic Safety91111.2SignpostCompanyEnterpriseVirtual ReceptionistAnswering Service25.3GupshupMessagingWhatsAppConversational AICPaaS1 API24.1Rakuten ViberCompanyMessagingChatbots4 APIs24.1VolunteerLocalVolunteer ManagementSchedulingTracking1 API24.1Yandex MailCompanyEmailCloud22.8SpikeCompanyEmailCollaborationTeam Chat22.6IgnixSocial MediaMarketingAutomationSoftware-as-a-Service20.3Ambr TechnologiesArtificial IntelligenceEnterpriseTrainingRoleplay19.1BesideCompanySoftwareVoice19.0LoomProductivityVideoAsync5 APIs17.7AitocallArtificial IntelligenceTelephonyVoice1 API17.4waapi-appCompanyMessagingWhatsApp1 API17.3MoxtraCollaborationCustomer EngagementMessagingVideo Conferencing1 API15.9MassenversandSMSMessagingMarketingGermany15.3VoltCompanyWhatsAppMessagingProductivity1 API14.8CopiaCompanyFaxEnterprise Software1 API14.7CaremessageCompanyHealthcarePatient EngagementMessaging14.6Confide *CompanyConsumerMessagingEncryption14.5Fax.PlusFaxCloudHIPAA14.3SmoreCompanyEducationEdTechNewsletters14.0CometaCompanyEducationEdTechSchool Management13.0kenoodlArtificial IntelligencePhoneNetworkFree12.4ClubhouseCompanySocial AudioSocial NetworkLive Audio11.1AssindoArtificial IntelligencePhoneAssistantSoftware-as-a-Service11.0
Minimal 63 Almost no public developer surface
BBNCompanyDefenseCybersecurity1 API10.8PingerCompanyTelecommunicationsMessaging10.8Telespazio VEGA UK LtdCompanySatelliteAerospace1 API10.7OctopushMarketingSMSEmail10.5GuildedGamingCommunityChat10.2EutelsatCompanySatelliteGeo10.1All City CommunicationsCompanyAnswering ServiceCall CenterTelecommunications10.0CodanCompanyDefencePublic Safety9.1STARFACECompanyUnified CommunicationsVoIP9.1SatelliteCompanyWeb3DecentralizedMessaging8.3West Technology GroupCustomer ExperienceArtificial IntelligenceHealthcare7.8JiveCompanyEnterpriseCollaborationDigital Workplace7.2DingTalkCompanyCollaborationEnterprise7.1Proximus GlobalCompanyDigital IdentityConnectivity6.1EchoStarConnectivityFortune 500IoT5.7ValueFirst, a Tanla companyCPaaSMessagingEnterprise4.1VonBoxCompanyTelephonyMessaging3.9BravegroupCompanyDesignAdvertising1 API3.1Quanta ServicesFortune 500InfrastructureEnergyElectric Power3.0FuzeCompanyCloudUnified CommunicationsUCaaS2.6TeamnoteCompanyEnterprise MessagingMobileCollaboration2.6Echo AI (fka Pathlight)Artificial IntelligenceSpeech RecognitionAnalytics2.2Rocket.ChatCompanyOpen SourceCollaboration2.2toytalkCompanyTechnologyChildren2.2Cedar Point CommunicationsCompanyTelecommunicationsVoIPSoftswitch1.8GMSCPaaSMessagingEmail1.7VoxoxCompanyTelecommunicationsCloud Communications1.4MessageMe *CompanyConsumerMessaging0.0NovaxessCompanyTelecommunicationsDefunct0.0SessionsCompanyCollaborationVideo Conferencing0.0TalkoCompanyMessagingVoice0.0DialupCompanyVoiceSocial10.6ContentguruCompanyCustomer ExperienceCloudArtificial Intelligence1 API10.0CrewCompanyApplicationWorkforce ManagementFrontline9.9C2MCompanySocialMessagingChat9.7Northwood SpaceCompanySpaceSatelliteGround Station9.7Oson SMSCompanySMSMessagingCloud1 API8.9FaxivoCompanyArtificial IntelligenceAgenticInternetServices1 API8.4Aptos OrbitalCompanySpaceSatelliteSpacecraft8.1KSATSatelliteGround StationSpace8.0FaxerFaxOnline FaxSoftware-as-a-ServicePayments1 API6.7CauseraParent OrganizationsSchool CommunityFile Sharing6.6GotFreeFaxFaxOnlineUS-Canada6.4Symbl.aiCompanyArtificial IntelligenceConversationsSpeech1 API6.1SonusCompanyInfrastructureNetworking5.9VoxeetCompanyConferencingVoiceVideo5.3BinotelCompanyTelephonyCloudBusiness4.8LiveprofileCompanyMessagingChat4.6BridgewireCompanyMessagingAutomationIntegration1 API3.7Walkie-TalkieCompanyConsumerSocial AudioAudio3.0Bullpen Strategy GroupCompanyAdvisoryStrategic2.7ClubhousevoiceCompanyVoiceAudio2.6CompanionArtificial IntelligenceInterfacesIntelligence2.6HotmailCompanyEmailWebmailConsumer2.6TandemCompanyRemote WorkVirtual OfficeTeam Collaboration2.6AutotalksCompanyTechnologyAutomotive2.2AroundCompanyVideoVideo ConferencingCollaboration0.0Blue Jeans NetworkCompanyEnterpriseVideo Conferencing0.0FaxSavCompanyFaxInternet FaxMessaging0.0inbilinCompanySocialVoiceMobile0.0MakelogCompanyProductivityChangelogRelease Notes0.0TalkrayCompanyMessagingVoice0.0VoiceVoiceCompanyConferencingAudio0.0

APIs with this tag (67)

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 14 Complete, well-documented, and agent-ready
HubSpot Engagement Communications APIThe communications API allows you to log WhatsApp, LinkedIn, or SMS messages to CRM record timelines. You c...91.9Leadping Webhook EventsOutbound HTTPS webhook deliveries fired by Leadping automations, signed with the Standard Webhooks specific...80.8Microsoft Azure Communication Services APIAzure Communication Services provides multichannel communication APIs that enable developers to add voice, ...75.7Microsoft Azure Communications APIThe Communications API from Microsoft Azure — 6 operation(s) for communications.75.7Front Core APIThe Front Core API is a REST API over Front's shared-inbox platform. It exposes conversations, messages, dr...72.3FireHydrant Communication APIOperations related to Communication71.5Canvas Medical Communication APICommunications with or about a patient71.0Google Meet APIThe Google Meet API allows developers to build applications that integrate with Google Meet.70.7SPOTIO Communication APIAPI for communication activities. You can retrieve data about communication activities. You can also marks ...70.4Microsoft Graph Communications APICreate and join online meetings, manage call records, and enable cloud communications capabilities for appl...70.1Procore Communications APIThe Communications API from Procore — 6 operation(s) for communications.68.5Mailboxlayer Email Validation APIREST/JSON API for real-time email validation: syntax check, typo suggestions, MX-record lookup, SMTP verifi...67.8Deputy Communication APIThe Communication API from Deputy — 1 operation(s) for communication.67.1Unity Vivox Voice and Text Chat APIVivox provides voice and text-based communication services for games, with APIs for managing channels, part...66.5
Strong 10 Solid coverage with minor gaps
Orange Business Contact Everyone APIMultichannel contact and notification API — SMS, voice, email, and fax broadcast — used for crisis communic...64.2Orange Business Talk APIProgrammable management for Business Talk, Orange Business's enterprise SIP trunking and IP voice service. ...64.2Orange Business Voice as a Service APIProgrammable voice / VoIP API for integrating outbound calls, IVR, and click-to-call into business applicat...64.2upapi-io Communication APIThe Communication API from upapi-io — 1 operation(s) for communication.63.0digitalpublic-com Communications APIThe Communications API from digitalpublic-com — 1 operation(s) for communications.62.6DoorLoop Communications APIThe Communications API from DoorLoop — 2 operation(s) for communications.58.9Dream Sports Communication APIThe Communication API from Dream Sports — 2 operation(s) for communication.57.7Check Communications APIThe Communications API from Check — 2 operation(s) for communications.56.0MTN Group Communication APIThe Communication API from MTN Group — 4 operation(s) for communication.55.4Partnerize Communications APIThe Communications API from Partnerize — 7 operation(s) for communications.54.8
Developing 17 Usable, with meaningful gaps to close
Factorial Posts and Communities APIGroups, posts, and comments backing the Communities V2 feature. Requires Communities V2 to be enabled on th...53.3JPMorgan Chase Communication APICommunication Update53.2Clio Communications APIUsers can view all logged phone calls and emails under the Communications tab in Clio. This is also where t...51.7Gladly Communications APICommunications API enables you to programmatically send messages to your customers. These messages are non-...51.3ELLKAY Communication APIThe Communication API from ELLKAY — 2 operation(s) for communication.49.2Paedae Communications APIThe Communications API from Paedae — 16 operation(s) for communications.48.6AMCS Group Communication APIThe Communication API from AMCS Group — 3 operation(s) for communication.48.3StackOne Unified Messaging API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified Messag...47.8Oracle Health (Cerner) Communication APIFHIR R4 Communication resource as implemented by Oracle Health Millennium Platform.47.3NHS England Communication APIThe communication API from NHS England — 4 operation(s) for communication.47.2MedAdvisor Communication APIThe Communication API from MedAdvisor — 6 operation(s) for communication.46.5Skype URIs APISkype URIs provide a mechanism for launching Skype actions from web pages and applications. Developers can ...45.4Epic Online Services Voice APIThe EOS Voice Interface delivers in-game voice chat using Vivox backend infrastructure, with positional aud...44.1Centene Communication APIThe Communication API from Centene — 6 operation(s) for communication.44.0NHS Digital Communication APIThe communication API from NHS Digital — 4 operation(s) for communication.41.1Leo1 Communication APIThe Communication API from Leo1 — 3 operation(s) for communication.40.6Axiom Relay Communications APIAgent access, adapters, public ecosystem events, feeds, and gated webhooks40.3
Thin 20 Limited public surface area
RelativityOne Communications APIOperations for legal hold communications and notifications39.1MirrorFly Chat Platform APIREST/HTTP API for chat and messaging (User and Admin APIs) with JSON payloads. Production base URL is tenan...38.1FutureSense AI Communications APIEmail sending and templates37.4Qualia Messages APISend and receive messages tied to an order or transaction, powering client communication and status notific...35.3Deutsche Telekom AI StudioBuild conversational customer experiences in natural language across SMS, RCS, voice, video, and chat chann...34.8Deutsche Telekom Conversational Connect APITransform customer communications with intelligent conversational marketing across messaging channels, inte...34.8Deutsche Telekom Reports APIProgrammatic access to communications usage data, delivery reports, and billing breakdowns across the CPaaS...34.8Deutsche Telekom Rich Communication Services APIImprove customer experience using Rich Communication Services for branded, interactive messaging that exten...34.8Deutsche Telekom SMS APIProgrammatically send and receive text messages in practically every country through Deutsche Telekom's CPa...34.8Deutsche Telekom Video APIBring people together globally through fully programmable, customizable, live video sessions embedded in ap...34.8Deutsche Telekom Voice APIDeliver high-quality voice experiences over the low-latency, feature-rich, global Deutsche Telekom network ...34.8Select Medical Holdings Communication APIFHIR R4 Communication resource as declared by the Select Medical FHIR server CapabilityStatement.31.0Advanced Email Verification APIVerify an email address from a single query parameter and get a response with code and success. Useful for ...30.7ApyHub Communications APIThe Communications API from ApyHub — 3 operation(s) for communications.30.7Email Deliverability Score APICheck an email address for syntax, MX records, and disposable domains. Get a score, level, and boolean chec...30.7Email MX Lookup APICheck whether an email domain has MX records. Returns email, domain, has_mx, and mx_records for deliverabil...30.7Email Syntax Validator APIValidate an email address by syntax only and get the local part, domain, and valid flag back. Useful for fa...30.7Frostbyte Communication API1 services29.8Kalshi Communications APIRequest-for-quote (RFQ) endpoints28.9Wodify Communications APIEmail, SMS, in-app chat, and tasks.27.7
Emerging 5 Early or largely undocumented
Resul Web APIThe Resul (Resulticks) Web API is a JSON REST API served from the https://apis.resu.io base domain, documen...26.1Sdui Platform APIThe production JSON API behind the Sdui school-communication platform, serving the Sdui web app, the iOS/An...25.7FranConnect CRM APICRM module (path segment "cm"). Read and write contacts and relationship/communication records that support...14.9Subsplash Groups and Messaging APIManage groups, group membership, and messaging, and trigger push notifications and in-app messages through ...12.4Intermedia Voice APIThe Intermedia Voice API enables developers to embed voice calling capabilities into CRMs, ERPs, ticketing ...12.1
Minimal 1 Almost no public developer surface
Buildium Communications APIManages emails, notes, and other communications stored against properties, leases, tenants, owners, and ven...6.8

Companies reaching this through an API (46)

These companies publish an API, specification or operation carrying “Communications” 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.

AMCS Group ApyHub Axiom Relay Buildium Canvas Medical Centene Check Clio Deputy Deutsche Telekom digitalpublic-com DoorLoop Dream Sports ELLKAY Epic Games Factorial FireHydrant FranConnect Frostbyte FutureSense AI Gladly Google Workspace HubSpot JPMorgan Chase Kalshi Leo1 MedAdvisor Microsoft Azure Microsoft Office 365 MTN Group NHS Digital NHS England Oracle Health (Cerner) Paedae Partnerize Procore Qualia RelativityOne Resulticks Select Medical Holdings SPOTIO StackOne Subsplash Unity upapi-io Wodify

Score breakdown

Frequency
65.2
log-scaled weighted occurrences
Breadth
3.3
spread across providers
Quality lift
32.0
mean composite of providers using it
Cohesion
20.8
strength of nearest seed neighbor

Where this tag sits

259 providers carry this tag directly, and 451 counting the 4 narrower tags below and the 3 beneath them — 192 more to reach.

CPaaS 60 providers UCaaS 13 providers Unified Communications 24 providers SMS 223 providers

Related tags

SMS 85 co-occurrences Messaging 118 co-occurrences Voice 65 co-occurrences Telephony 32 co-occurrences CPaaS 29 co-occurrences Phone Numbers 28 co-occurrences Calls 28 co-occurrences

Where this tag comes from

Provider tag259
Api tag67
Openapi tag25
Openapi op tag111

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

MarketShare of the market's providers
Communications (CPaaS)52%
Telecom Network APIs (CAMARA)36%

Cohort brief

Auto-generated

The 220 providers in the APIs.io catalog tagged Communications, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
220
of 259 in the catalog
Mean Kin Score
35
+10.9 vs catalog 24.1
Mean Agent Readiness
23.2
+9.1 vs catalog 14.1
Spread
0–93.9
median 31.3 · σ 23
How the 220 split by band
Exemplar 19Strong 38Developing 33Thin 39Emerging 52Minimal 39
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 31.5 18.6 +12.9 220
Developer Ergonomics 36.7 24.5 +12.2 220
Access Clarity 41 30 +11 220
Operational Transparency 23 13.2 +9.8 220
Discoverability 64.3 59.1 +5.2 220
Contract Governance 13.8 9.7 +4.1 220

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) 25% 18% +7
MCP server (first-party) 25% 16% +9
Agent Skills 0% 0% 0
OAuth scopes 23% 13% +10
Security 100% 99% +1
Arazzo workflows 3% 1% +2
Governance rules 54% 36% +18

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 Nylas 93.9
  2. 2 Telnyx 93.5
  3. 3 Twilio 90.8
  4. 4 Infobip 86.9
  5. 5 Leadping 80.8
  6. 6 Telesign 77
  7. 7 Loops 75.1
  8. 8 SignalWire 74.2
  9. 9 Microsoft Azure Communication Services 73.7
  10. 10 8x8 73
Top by Agent Readiness
  1. 1 Telnyx 79.5
  2. 2 Leadping 71.7
  3. 3 Loops 69
  4. 4 Hellou AI 67.7
  5. 5 Bird 65.2
  6. 6 KaiCalls 65
  7. 7 Blueticked 64.1
  8. 8 AllMCPs 64.1
  9. 9 osis-co 63.9
  10. 10 Infobip 61.3
All 259 members of this roster resolve to a provider in the catalog; 220 carry a score (85%). The figures above describe the scored members only.
Coverage caveat. 152 of 220 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 14 November 2026, across 41591 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.
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