niche · -0.2 capability resourceschema

Public API

Score 19.7 / 100 5 providers +15 via APIs 16 APIs Search apis.io →
Variants seen in the corpus: Public APIPublic Apipublic-api

Providers using this tag (5)

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

Strong 1 Solid coverage with minor gaps
GZW Data APIGamingVideo Gamesgray-zone-warfareGame Data1 API62.0
Thin 4 Limited public surface area
ISS Location API (Open Notify)SpaceISSInternational Space StationNASA1 API32.2Random User GeneratorTest DataSynthetic DataMock DataOpen-Source1 API31.2Corporate Bullshit Generator APIBuzzwordsComedyCorporate JargonFake Data1 API29.1SWAPI - Star Wars APIStar WarsOpen-SourceTeaching API7 APIs28.2

APIs with this tag (16)

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 1 Complete, well-documented, and agent-ready
Plunk Public APIPublic API endpoints for sending emails and tracking events74.6
Strong 3 Solid coverage with minor gaps
ControlUp Public API APIThe Public API API from ControlUp — 11 operation(s) for public api.65.6Postiz Public APIThe Public API API from Postiz — 22 operation(s) for public api.63.1EventX Public APIThe Public Api API from EventX — 5 operation(s) for public api.55.8
Developing 6 Usable, with meaningful gaps to close
Alteryx Gallery APIAPI for interacting with Alteryx Analytics Gallery for workflow sharing and execution.45.2ShareThis Social Share Count APIPublic, unauthenticated GET endpoint returning aggregate social sharing metrics for any URL — clicks and sh...45.0Develop Health public-api APIThe public-api API from Develop Health — 15 operation(s) for public-api.44.8Nace Ai public-api APIThe public-api API from Nace Ai — 12 operation(s) for public-api.44.2RubyGems.org Registry API v2Version 2 of the rubygems.org registry API. Adds gem version detail endpoints with optional platform query ...43.1Keboola Public API APIUnauthenticated read access to published apps and vendors.42.1
Thin 5 Limited public surface area
Contra Public Api APIThe Public Api API from Contra — 3 operation(s) for public api.37.5Netsmart CareConnect Payer Provider Directory APIPublicly accessible FHIR R4 API for discovering healthcare providers, organizations, locations, services, a...37.3Netsmart CareConnect Service Base URLs APIPublic endpoint returning an HL7 FHIR R4 Bundle of Organization and Endpoint resources that describe all av...37.3Clean Harbors Careers Job Query APIUnauthenticated JSON API over Clean Harbors' open positions, served from the company's own careers host and...35.4Proof of Play Public API APIThe Public API API from Proof of Play — 1 operation(s) for public api.33.9
Emerging 1 Early or largely undocumented
Recruitee Careers Site APIPublic, read-only API used by careers sites and embedded job widgets to fetch published offers, departments...21.9

Companies reaching this through an API (15)

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

Alteryx Clean Harbors Contra ControlUp Develop Health EventX Keboola Nace Ai Netsmart Plunk Postiz Proof of Play Recruitee Ruby Programming Language and Popular API Gems ShareThis

Score breakdown

Frequency
45.3
log-scaled weighted occurrences
Breadth
0.1
spread across providers
Quality lift
41.4
mean composite of providers using it
Cohesion
0.5
strength of nearest seed neighbor

Related tags

Event 5 co-occurrences Open-Source 5 co-occurrences MCP 6 co-occurrences User 5 co-occurrences Webhook 5 co-occurrences Company 6 co-occurrences

Where this tag comes from

Api tag16
Provider tag5
Openapi tag8
Openapi op tag70

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/public-api"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/public-api"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/public-api/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.