posture · 0.1 posture industryschema

Free

Score 24.7 / 100 18 providers +10 via APIs 11 APIs Search apis.io →

Providers using this tag (18)

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

Strong 1 Solid coverage with minor gaps
ScryfallGames And ComicsMagic The GatheringCard DataOpen Data1 API57.1
Developing 3 Usable, with meaningful gaps to close
Alpha VantageFintechMarket DataStocksFX1 API52.9Open-MeteoWeatherForecastHistorical WeatherAir Quality9 APIs41.1Free Currency APICurrencyExchange RatesFinanceHistorical Data1 API39.6
Thin 10 Limited public surface area
Bored APIActivitiesBoredomRandomEntertainment1 API38.6StooqFintechMarket DataStocksIndices1 API37.0Sunrise SunsetSunriseSunsetSolarAstronomy1 API36.1Numbers APINumbersTriviaMathFacts2 APIs35.9ISS Location API (Open Notify)SpaceISSInternational Space StationNASA1 API32.2TallyFormsSurveysNo-Code1 API31.7Bored APIActivitiesBoredomCommunityDevelopment2 APIs31.3Cat Facts APICat FactsTriviaFunLearning1 API31.1Corporate Bullshit Generator APIBuzzwordsComedyCorporate JargonFake Data1 API29.1Rick and Morty APIRick and MortyCharactersEpisodesLocation2 APIs29.1
Emerging 4 Early or largely undocumented
Open Trivia DBGamesQuestionsTrivia1 API21.3ZeffyFundraisingNon-ProfitDonationsPayments1 API19.0Countries GraphQL APIGraphQLCountriesGeographyOpen Data1 API18.7PixabayStock MediaImageVideoIllustrations2 APIs14.3

APIs with this tag (11)

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 2 Complete, well-documented, and agent-ready
Avalara Free APIFree tax rate lookup endpoints69.1DeBounce Logo APIFree company logo lookup service positioned as a drop-in replacement for the deprecated Clearbit Logo API. ...67.8
Strong 3 Solid coverage with minor gaps
AAAA Nexus APIPay-per-call REST API for autonomous agents: threat scoring, trust and reputation oracles, escrow, SLA bond...60.6Clearbit Autocomplete APIFree, unauthenticated company autocomplete: returns candidate companies (name, domain, logo) for a name fra...60.3Clearbit Logo API (retired)RETIRED 2025-12-08. The free Logo API returned a company logo image for a domain with no authentication. An...60.3
Developing 2 Usable, with meaningful gaps to close
BuiltWith Free APIThe Free API from BuiltWith — 1 operation(s) for free.53.7Codag Free APIThe Free API from Codag — 1 operation(s) for free.46.1
Thin 4 Limited public surface area
IBANforge Free APIFree endpoints — no payment required32.7Frankfurter APIFree and open-source API for current and historical forex rates.31.0DefiLlama Public APIFree, no-auth REST API exposing 31+ endpoints for protocol TVL, chain TVL, coin prices, stablecoin metrics,...30.7Solscan Public APIFree, lower-rate-limit public API exposing basic account, transaction, and token endpoints used by the Sols...30.6

Companies reaching this through an API (10)

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

Atomadic Tech Avalara BuiltWith Clearbit (HubSpot Breeze Intelligence) Codag DeBounce DefiLlama Forex IBANforge Solscan

Score breakdown

Frequency
37.3
log-scaled weighted occurrences
Breadth
0.1
spread across providers
Quality lift
74.7
mean composite of providers using it
Cohesion
2.8
strength of nearest seed neighbor

Related tags

Open-Source 6 co-occurrences MCP 5 co-occurrences

Where this tag comes from

Provider tag18
Api tag10
Openapi tag5
Openapi op tag24

Work with this as data

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

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