established · 1.4 market domain

API Catalog

Score 24.4 / 100 9 providers +10 via APIs 14 APIs Search apis.io →

Providers using this tag (9)

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 APIs90.6RedoclyArtificial IntelligenceAPI DocumentationArazzo4 APIs82.6PostmanEnvironmentFlowSpecificationWorkspace21 APIs80.2APILayerAPI MarketplaceAPI DiscoveryDeveloper Tools6 APIs68.2
Strong 1 Solid coverage with minor gaps
ReefAPIWeb DataData AggregationWeb ScrapingSERP1 API57.7
Developing 1 Usable, with meaningful gaps to close
APIToolkit (Monoscope)AI ObservabilityAPI AnalyticsAPI Management1 API42.8
Thin 2 Limited public surface area
ApivaultAPI DirectoryAPI DiscoveryOpen Source2 APIs30.8APIs.guruAPI DirectoryAPI DiscoveryCommunity2 APIs29.7
Emerging 1 Early or largely undocumented
DigitalAPIAPI AggregationAPI Marketplace1 API11.0

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 →

Exemplar 6 Complete, well-documented, and agent-ready
Redocly RealmRedocly Realm is the comprehensive API lifecycle management platform that unifies Redoc, Revel, and Reef in...82.6Redocly ReefRedocly Reef is the internal API platform — a service catalog and governance product that organizes, aids d...82.6Postman API Catalog APIThe apiCatalog API from Postman — 11 operation(s) for apicatalog.80.2Datadog API Management APIThe API Management API allows you to create and manage APIs from OpenAPI specifications. It supports the Da...79.8Azure API CenterAzure API Center is the design-time governance and centralized discovery counterpart to Azure API Managemen...73.6Google Apigee API HubApigee API Hub is a centralized repository and governance platform for discovering, managing, and analyzing...70.2
Strong 1 Solid coverage with minor gaps
Axway Amplify Central APIAxway Amplify Central is the unified API management hub that enables discovery, consumption, and governance...58.5
Developing 2 Usable, with meaningful gaps to close
MuleSoft Anypoint Exchange APIThe Anypoint Exchange API provides programmatic access to MuleSoft's asset marketplace, enabling discovery,...51.2SAP API Business Hub Enterprise APIThe SAP API Business Hub Enterprise (also called API Management Developer Portal) API enables programmatic ...40.0
Thin 3 Limited public surface area
Ambassador Edge Stack Developer PortalThe Ambassador Edge Stack Developer Portal automatically detects and publishes API documentation, serving a...35.4_done CatalogSingle-page agent-native catalog of the 27 _done pay-per-call utility APIs. Publishes a real llms.txt, a ro...35.2API Central (Developer Portal)Berkeley IT's centralized API management developer portal, operated by the Engineering and Integration Serv...33.0
Emerging 1 Early or largely undocumented
DigitalAPIDigitalAPI is an API catalog, marketplace, and management platform that unifies APIs across multiple gatewa...11.0

Companies reaching this through an API (10)

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

_done Ambassador Apigee Axway ChannelSeal Datadog Microsoft Azure API Management MuleSoft SAP API Management University of California, Berkeley

Score breakdown

Frequency
36.9
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
67.3
mean composite of providers using it
Cohesion
11.0
strength of nearest seed neighbor

Related tags

API Discovery 6 co-occurrences API Management 9 co-occurrences Developer Portal 5 co-occurrences API Gateway 5 co-occurrences OpenAPI 7 co-occurrences Governance 5 co-occurrences Observability 6 co-occurrences Monitoring 5 co-occurrences

Where this tag comes from

Api tag14
Provider tag9
Openapi tag1
Openapi op tag1

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

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