niche · 0.0

API Discovery

Score 18.2 / 100 25 providers 15 APIs Search apis.io →
Variants seen in the corpus: API Discoveryapi-discovery

Providers using this tag (25)

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

Exemplar 2 Complete, well-documented, and agent-ready
APIs.ioAPI AggregationAPI DirectoryAPI Indexing11 APIs76.1API EvangelistAPI EvangelistDeveloper PortalAPI ResearchAPI Governance17 APIs69.8
Strong 2 Solid coverage with minor gaps
FastlyCDNEdge CloudEdge ComputeWebAssembly80 APIs60.8Microsoft Azure API ManagementA2AAI GatewayAPI CenterAPI Gateway71 APIs58.0
Developing 2 Usable, with meaningful gaps to close
Merit SystemsCompanyAgentic CommercePaymentsx4026 APIs53.3OrthogonalCompanyAI AgentsAPI Marketplace4 APIs52.0
Thin 5 Limited public surface area
Akamai API SecurityAPI SecurityCloud SecurityPosture Management65 APIs37.0Cequence SecurityAPI SecurityAI GatewayMCPAgentic AI1 API36.3TraceableAPI ProtectionAPI SecurityAPI Testing4 APIs33.8APIs.guruAPI CatalogAPI DirectoryCommunity1 API31.3AktoCompanyAPI SecuritySecurityAPI Security Testing26.5
Emerging 12 Early or largely undocumented
Agent ReadinessAgent ReadinessAI AgentsAPI Governance15 APIs25.0APIs.jsonAPI AggregationAPI CatalogingAPI Commons1 API22.3GlooAPI GatewayEnvoyKubernetesOpen-Source4 APIs21.6APILayerAPI CatalogAPI MarketplaceDeveloper Tools1 API21.4Public APIsAPI AggregationAPI DirectoryFree APIs4 APIs19.9Cequence SecurityAI ProtectionAPI SecurityApplication Security5 APIs14.7Akita SoftwareAcquiredAPI MappingAPI Observability2 APIs14.6Salt SecurityAPI SecurityArtificial IntelligencePosture Governance2 APIs13.8API DynamicsAPI SecurityAPI ObservabilityZero Trust1 API13.6ApivaultAPI CatalogAPI DirectoryOpen-Source1 API12.8Noname SecurityAPI SecurityAPI TestingPosture Management4 APIs12.8API StackAPI DesignAPI DirectoryAPI GatewaysAPI Management1 API12.4
Minimal 2 Almost no public developer surface
ProgrammableWebAPI AggregationAPI DirectoryArchived1 API10.5API HarmonyAPI AggregationAPI RecommendationGraph Technology1 API10.1

APIs with this tag (15)

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
Fastly API Discovery APIOperations for enabling and managing the API Discovery product that identifies API endpoints in service tra...60.8Azure API CenterAzure API Center is the design-time governance and centralized discovery counterpart to Azure API Managemen...58.0
Thin 1 Limited public surface area
Traceable API Security PlatformTraceable provides an intelligent API security platform offering API discovery, threat detection and protec...33.8
Emerging 10 Early or largely undocumented
APIs.json SpecificationThe APIs.json specification defines a machine-readable JSON or YAML format for describing API operations. U...22.3Gloo PortalGloo Portal is a developer portal product from Solo.io that enables organizations to expose, document, and ...21.6Akita SoftwareAkita Software provided an API observability platform that used passive traffic monitoring to automatically...14.6Postman Live InsightsPostman Live Insights is the successor to Akita Software, now integrated into the Postman platform. The Pos...14.6Salt Security API Protection PlatformThe Salt Security API Protection Platform provides full lifecycle API security including automated API disc...13.8API Dynamics PlatformThe APIDynamics platform provides AI-driven API security and observability including API discovery, traffic...13.6ApivaultApivault is a free, open-source API directory that serves as a gateway to a world of public APIs. It catalo...12.8Noname API DiscoveryNoname API Discovery provides complete visibility into all APIs across an organization, including managed, ...12.8Noname API Security PlatformThe Noname API Security Platform provides comprehensive API security through discovery, posture management,...12.8API Stack DirectoryThe API Stack Directory is a searchable catalog of 213+ API tools and services organized into 50+ categorie...12.4
Minimal 2 Almost no public developer surface
ProgrammableWeb API DirectoryProgrammableWeb maintained the world's largest directory of open web APIs, mashups, and developer tools. Th...10.5API Harmony ServiceAPI Harmony was an intelligent API matchmaking service that used graph technology and machine learning to s...10.1

Score breakdown

Frequency
42.9
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
35.1
mean composite of providers using it
Cohesion
2.2
strength of nearest seed neighbor

Related tags

API Directory 6 co-occurrences API Aggregation 5 co-occurrences API Catalog 5 co-occurrences API Security 9 co-occurrences API Governance 5 co-occurrences Discovery 5 co-occurrences MCP 7 co-occurrences Open-Source 6 co-occurrences

Where this tag comes from

Provider tag21
Api tag15
Openapi tag1
Openapi op tag3

Cohort brief

Auto-generated

The 25 providers in the APIs.io catalog tagged API Discovery, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
25
all scored
Mean Kin Score
30.4
+9.7 vs catalog 20.7
Mean Agent Readiness
14.9
+5.2 vs catalog 9.7
Spread
10.1–76.1
median 22.3 · σ 19.6
How the 25 split by band
Exemplar 2Strong 2Developing 2Thin 5Emerging 12Minimal 2
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Operational Transparency 23.8 11.3 +12.5 25
Developer Ergonomics 29 17.9 +11.1 25
Discoverability 69.5 60.4 +9.1 25
Contract Quality 26 17.5 +8.5 25
Access Clarity 30.4 22.3 +8.1 25
Contract Governance 14.3 6.4 +7.9 25

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) 28% 16% +12
MCP server (first-party) 20% 7% +13
Agent Skills 0% 0% 0
OAuth scopes 8% 9% -1
Security 96% 88% +8
Arazzo workflows 12% 2% +10
Governance rules 44% 13% +31

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 76.1
  2. 2 API Evangelist 69.8
  3. 3 Fastly 60.8
  4. 4 Microsoft Azure API Management 58
  5. 5 Merit Systems 53.3
  6. 6 Orthogonal 52
  7. 7 Akamai API Security 37
  8. 8 Cequence Security 36.3
  9. 9 Traceable 33.8
  10. 10 APIs.guru 31.3
Top by Agent Readiness
  1. 1 Orthogonal 49.9
  2. 2 APIs.io 47.5
  3. 3 API Evangelist 44.8
  4. 4 Traceable 29
  5. 5 Merit Systems 27.2
  6. 6 APIs.guru 25.8
  7. 7 Microsoft Azure API Management 25.8
  8. 8 Akamai API Security 24.8
  9. 9 Fastly 23.4
  10. 10 Public APIs 20
All 25 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 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

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

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