emerging · 0.0 market domain

API Catalog

Score 22.8 / 100 9 providers +9 via APIs 13 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 APIs88.8RedoclyArtificial IntelligenceAPI DocumentationArazzo4 APIs75.5PostmanEnvironmentFlowSpecificationWorkspace21 APIs72.4APILayerAPI MarketplaceAPI DiscoveryDeveloper Tools6 APIs67.2
Strong 1 Solid coverage with minor gaps
ReefAPIWeb DataData AggregationWeb ScrapingSERP1 API57.8
Developing 1 Usable, with meaningful gaps to close
APIToolkit (Monoscope)AI ObservabilityAPI AnalyticsAPI Management1 API44.5
Thin 2 Limited public surface area
APIs.guruAPI DirectoryAPI DiscoveryCommunity1 API32.3ApivaultAPI DirectoryAPI DiscoveryOpen-Source1 API30.9
Emerging 1 Early or largely undocumented
DigitalAPIAPI AggregationAPI Marketplace1 API12.6

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 4 Complete, well-documented, and agent-ready
Redocly RealmRedocly Realm is the comprehensive API lifecycle management platform that unifies Redoc, Revel, and Reef in...75.5Redocly ReefRedocly Reef is the internal API platform — a service catalog and governance product that organizes, aids d...75.5Postman apiCatalog APIThe apiCatalog API from Postman — 11 operation(s) for apicatalog.72.4Azure API CenterAzure API Center is the design-time governance and centralized discovery counterpart to Azure API Managemen...67.3
Strong 2 Solid coverage with minor gaps
Google Apigee API HubApigee API Hub is a centralized repository and governance platform for discovering, managing, and analyzing...62.1Datadog API Management APIThe API Management API allows you to create and manage APIs from OpenAPI specifications. It supports the Da...61.7
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,...51.3Axway Amplify Central APIAxway Amplify Central is the unified API management hub that enables discovery, consumption, and governance...49.4
Thin 4 Limited public surface area
SAP API Business Hub Enterprise APIThe SAP API Business Hub Enterprise (also called API Management Developer Portal) API enables programmatic ...38.1_done CatalogSingle-page agent-native catalog of the 27 _done pay-per-call utility APIs. Publishes a real llms.txt, a ro...37.7Ambassador Edge Stack Developer PortalThe Ambassador Edge Stack Developer Portal automatically detects and publishes API documentation, serving a...36.7API Central (Developer Portal)Berkeley IT's centralized API management developer portal, operated by the Engineering and Integration Serv...35.9
Emerging 1 Early or largely undocumented
DigitalAPIDigitalAPI is an API catalog, marketplace, and management platform that unifies APIs across multiple gatewa...12.6

Companies reaching this through an API (9)

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 Datadog Microsoft Azure API Management MuleSoft SAP API Management University of California, Berkeley

Score breakdown

Frequency
35.7
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
60.7
mean composite of providers using it
Cohesion
11.2
strength of nearest seed neighbor

Related tags

API Discovery 5 co-occurrences API Management 9 co-occurrences Developer Portal 5 co-occurrences API Gateway 5 co-occurrences OpenAPI 7 co-occurrences Observability 5 co-occurrences Enterprise 6 co-occurrences Integration 5 co-occurrences

Where this tag comes from

Api tag13
Provider tag9

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/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"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.