established · 1.0 capability schema

Agent Skills

Score 25.9 / 100 73 providers 13 APIs Search apis.io →
Variants seen in the corpus: AgentSkillAgent Skills

Providers using this tag (73)

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

Exemplar 4 Complete, well-documented, and agent-ready
APIs.ioAPI AggregationAPI DirectoryAPI DiscoveryAPI Indexing20 APIs90.1Cracked APIAI AgentsAgent ToolsMCPTool Router2 APIs70.3UnifySalesMarketingGo-To-MarketOutbound4 APIs70.0SMTP2GOEmailEmail DeliveryTransactional EmailSMTP1 API69.0
Strong 23 Solid coverage with minor gaps
Infer by Flow7AI/ML inferenceLLM API gatewayResponses-compatible APICoding-agent tooling2 APIs65.7ErxesGraphQLCRMCustomer ExperienceOpen Source1 API65.6KonbiniAPISocial MediaInstagramTikTokX2 APIs65.1LacunaAI MusicMusic GenerationAI Song GeneratorAI Lyrics Generator2 APIs64.9ClickFunnelsSales FunnelsLanding PagesE-CommerceMarketing2 APIs64.4Parallel Web SystemsCompanyAi MlWeb SearchDeep Research2 APIs62.8AirOpsCompanyApplicationArtificial IntelligenceContent2 APIs62.2Dant3CompanySocial NetworkAI AgentsAgent Identity1 API61.9SE RankingSEOKeyword ResearchRank TrackingBacklinks1 API61.8PlanableSocial MediaContent CollaborationApproval WorkflowsSocial Media Management1 API61.0PloyCompanyMarketingMarketing AutomationArtificial Intelligence1 API60.8CriteoAdvertisingAnalyticsAudiences6 APIs60.7SynthflowVoiceVoice AgentsNo-CodeTelephony1 API59.9Adanos Market Sentiment APIMarketsSentimentStocksCrypto7 APIs59.5HashnodeBloggingDeveloper PlatformGraphQLContent Management1 API58.4LedgerLedgerCryptocurrencyDigital AssetsHardware Wallet14 APIs58.4DeveloperHubAPI ReferenceDeveloper PortalDocumentationKnowledge Base1 API57.5ZyteCrawlingData ExtractionScrapingWeb Scraping2 APIs57.3ApstalAnalyticsWeb AnalyticsPrivacySession Replay2 APIs56.4Nord SecurityCybersecurityThreat IntelligenceDark Web MonitoringAttack Surface Management7 APIs56.4LightrunCompanyDeveloper ToolsObservabilityDebugging1 API55.8CadastoHealthcareHealth ITopenEHRElectronic Health Records8 APIs55.4Credo AICompanyAI Governanceai-risk-managementResponsible AI4 APIs54.7
Developing 25 Usable, with meaningful gaps to close
BallerinaIntegrationOrchestrationOpen SourceProgramming Language1 API53.9LVL LTD COAgentsAgentic CommerceA2A1 API53.4VOYGRCompanyLocation IntelligencePOI DataData Enrichment1 API53.4AssetFareAI AgentsAsset TransferBridgeCross-Chain1 API53.3TypeSafe AIArtificial IntelligenceMachine LearningClassificationContent Moderation1 API52.4ABBYYAI AutomationDocument ProcessingOCRIntelligent Document Processing6 APIs52.3Enigma AnalyticsCompanyBusiness DataKYBIdentity Verification4 APIs51.9DaloopaFinancial DataFundamental DataMarket DataInvestment Research4 APIs51.2APIContextAPI DirectoryAPI MonitoringConformance6 APIs51.0PlyriumCompanySupply Chain SecuritySoftware Provenance1 API50.6TrusonaCompanyAuthenticationIdentityIdentity Verification2 APIs50.6Meta Agent ToolsDeveloper ToolsAPI RegistryAgent RegistryMCP1 API50.1LokkiCompanyClimate TechCircular EconomyRentals2 APIs49.1BitpandaCompanyCryptocurrencyFintechTrading1 API45.6Seshat MarketsFinanceFintechCryptoCommodities1 API45.3anewHTMLwebpageWebsitesURLs1 API45.1AdMakeAIAdvertisingMarketingAdTechGenerative AI3 APIs44.2RenooLabHome ServicesConstructionBuilding TradesRenovation2 APIs44.2BTC War Live Market Data APIFinanceCryptocurrencyMarket DataBitcoin3 APIs44.1AelfCompanyBlockchainLayer 1Web32 APIs43.7Mydentify Public APIProduct Discoverystartup directoriesLeaderboardsResearch1 API41.6ProbablCompanyOpen SourceMachine LearningData Science1 API41.4Amazon Selling Partner APIE-CommerceMarketplaceSelling PartnerAmazon21 APIs40.6SuperscaleCompanyArtificial IntelligenceMarketingAdvertising2 APIs40.4NaftikoCompanyAi DataAPI IntegrationAPI Governance40.1
Thin 13 Limited public surface area
AnloraCreator EconomyOnlyFansAgency ToolingAutonomous AI36.8WatoCompanyMCPAI AgentsAgent Governance1 API32.9Limit BreakCompanyGamingBlockchainSmart Contracts32.3DELTA Witness — Trust Layer for Autonomous Actionsweb-verificationproof-of-observationpage-state-monitoringcontent-hashing2 APIs30.4TaizenCompanyWin-Loss AnalysisCompetitive IntelligenceSales Enablement1 API30.2Genie-us SoftwareCompanyAI GovernanceAI Agents1 API30.0Agent SkillsAI AgentsTool UseFunction Calling3 APIs29.1Horizon RoboticsCompanyArtificial IntelligenceAutomotiveAutonomous Driving1 API28.8PerkoonFile TransferP2PWebRTCAI Agents3 APIs27.5HeelerCompanySecurityApplication SecurityDevSecOps27.4CloutJamCompanyInfluencer MarketingCreator ManagementCreator Economy1 API27.0NumericCompanyFintechAccountingFinancial Close1 API26.7BlockscoutBlockscoutWeb3ExplorerOpen Source1 API26.2
Emerging 6 Early or largely undocumented
Legal & GeneralInsuranceUnited KingdomLife InsuranceHealth Insurance26.1QName AI WHOIS APIWHOISRDAPdomain-researchDomain Search1 API26.0Agentic Resource Discovery (ARD)Agentic Resource DiscoveryARDAI CatalogAgent Discovery1 API23.5PerseusCompanyArtificial IntelligenceDeveloper ToolsCode Search22.1APIsecCompanyAPI SecurityApplication SecurityAppSec19.8ColumnarCompanyDataADBCApache Arrow15.1
Minimal 2 Almost no public developer surface
Agentic Data IntelligenceCompanyArtificial IntelligenceData AnalyticsAgents9.7QName AI WHOIS APIwhoisrdapdomain-researchdomain-search1 API7.3

APIs with this tag (13)

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 →

Strong 2 Solid coverage with minor gaps
Lacuna A2A AgentAgent-to-Agent JSON-RPC endpoint at https://www.lacuna.fm/a2a advertising the "Lacuna Music" agent card at ...64.9Credo AI Governance Intelligence Pro MCP ServerProvider-published Model Context Protocol server ("governance-hub") distributed as the npm package @credoai...54.7
Developing 8 Usable, with meaningful gaps to close
LVL LTD Agent Skill Market APIREST contract for the x402 skill marketplace: health and readiness probes, the ESP (Evaluate -> Settle -> P...53.4Voygr Calls APIProgrammatic outbound phone calls executed by an AI voice agent. Submit a task either as a plain-language b...53.4ABBYY Documentation MCP ServerHosted, unauthenticated Model Context Protocol server over the public ABBYY documentation corpus. Exposes s...52.3VouchSpec Agent Skill Evidence APIAgent-only API for purchasing fresh, isolated static validation and signed evidence for one exact immutable...50.6AdMakeAI Agent SkillPublished SKILL.md that teaches an agent tool selection from natural-language intent, credit mechanics, pag...44.2AdMakeAI MCP ServerHosted, stateless streamable-HTTP MCP server exposing 65 tools across account, projects, uploads, ad image ...44.2AdMakeAI REST APIRPC-style JSON REST API with dot-named tRPC procedure paths (e.g. adGeneration.create) covering ad image an...44.2Amazon Selling Partner Connector (MCP)Amazon's first-party remote MCP server for Seller Central (streamable HTTP), announced at Amazon Accelerate...40.6
Thin 1 Limited public surface area
Numeric MCP APIOAuth-protected Model Context Protocol server exposing Numeric's close-automation toolkit to AI agents. Str...26.7
Emerging 1 Early or largely undocumented
QName AI WHOIS REST APIApproval-gated REST API for WHOIS/RDAP lookups: GET /api/whois/{domain} (single), POST /api/whois/batch (ba...26.0
Minimal 1 Almost no public developer surface
QName AI WHOIS REST APIApproval-gated REST API for WHOIS/RDAP lookups: GET /api/whois/{domain} (single), POST /api/whois/batch (ba...7.3

Score breakdown

Frequency
53.2
log-scaled weighted occurrences
Breadth
2.0
spread across providers
Quality lift
57.4
mean composite of providers using it
Cohesion
4.1
strength of nearest seed neighbor

Related tags

llms-txt 8 co-occurrences A2A 23 co-occurrences OpenAPI 9 co-occurrences Data Enrichment 5 co-occurrences x402 6 co-occurrences Documentation 7 co-occurrences MCP 49 co-occurrences CLI 6 co-occurrences

Where this tag comes from

Provider tag73
Api tag13

Cohort brief

Auto-generated

The 73 providers in the APIs.io catalog tagged Agent Skills, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
73
all scored
Mean Kin Score
46.7
+23.7 vs catalog 23
Mean Agent Readiness
34.4
+22.2 vs catalog 12.2
Spread
7.3–90.1
median 50.6 · σ 16.2
How the 73 split by band
Exemplar 4Strong 23Developing 25Thin 13Emerging 6Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 57.3 23.3 +34 73
Operational Transparency 39.7 13.8 +25.9 73
Access Clarity 50.6 26.5 +24.1 73
Contract Quality 35.3 17.8 +17.5 73
Discoverability 70.1 58 +12.1 73
Contract Governance 14.4 6.3 +8.1 73

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) 68% 15% +53
MCP server (first-party) 68% 13% +55
Agent Skills 0% 0% 0
OAuth scopes 38% 12% +26
Security 97% 98% -1
Arazzo workflows 5% 2% +3
Governance rules 12% 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 APIs.io 90.1
  2. 2 Cracked API 70.3
  3. 3 Unify 70
  4. 4 SMTP2GO 69
  5. 5 Infer by Flow7 65.7
  6. 6 Erxes 65.6
  7. 7 KonbiniAPI 65.1
  8. 8 Lacuna 64.9
  9. 9 ClickFunnels 64.4
  10. 10 Parallel Web Systems 62.8
Top by Agent Readiness
  1. 1 APIs.io 75.3
  2. 2 Cracked API 68.5
  3. 3 Amazon Selling Partner API 64.6
  4. 4 DeveloperHub 61.9
  5. 5 Daloopa 61.5
  6. 6 Parallel Web Systems 60.2
  7. 7 APIContext 60.1
  8. 8 Unify 60
  9. 9 Lacuna 57.2
  10. 10 KonbiniAPI 56.1
All 73 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/agent-skills"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/agent-skills"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/agent-skills/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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