Federal
Providers using this tag (18)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 1 Solid coverage with minor gaps
Developing 5 Usable, with meaningful gaps to close
Thin 3 Limited public surface area
Emerging 6 Early or largely undocumented
Minimal 3 Almost no public developer surface
APIs with this tag (24)
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 →
Emerging 22 Early or largely undocumented
CISA Zero Trust Maturity ModelCISA's Zero Trust Maturity Model defines four maturity levels (Traditional, Initial, Advanced, Optimal) acr...DoD Zero Trust Reference ArchitectureThe Department of Defense Zero Trust Reference Architecture defines the seven DoD Zero Trust pillars (User,...NSA Zero Trust GuidanceA series of NSA Cybersecurity Information Sheets providing pillar-by- pillar guidance for implementing Zero...Project Open Data (data.json) Catalog APIEvery U.S. federal executive branch agency is required by the Open Government Data Act of 2018 (and predece...SAP NS2 (SAP National Security Services)SAP NS2 is an independent US subsidiary of SAP SE that operates SAP cloud and software workloads for the US...API Evangelist Federal Agencies RoundupKin Lane's 2026-05-05 roundup at apievangelist.com indexes 211 U.S. federal agencies and their public-facin...api.data.govFree API management gateway operated by the U.S. General Services Administration's Technology Transformatio...api.nasa.govAggregated NASA Open APIs hub at api.nasa.gov. Includes Astronomy Picture of the Day (APOD), Asteroids NeoW...api.weather.gov (NOAA NWS)National Weather Service REST + JSON-LD API at api.weather.gov delivering open weather forecasts, alerts, a...Bureau of Economic Analysis (BEA) APIBEA Data API exposing GDP, national income, personal income, corporate profits, international trade and inv...Census Data APIU.S. Census Bureau Data API at api.census.gov serving approximately 1,784 datasets across major survey prog...Congress.gov APIThe api.congress.gov REST API, maintained by the Library of Congress, exposes structured legislative data —...data.gov (CKAN catalog)The U.S. federal open data catalog at catalog.data.gov, powered by the open-source CKAN platform. The CKAN ...FEC openFEC APIFederal Election Commission's openFEC REST API at api.open.fec.gov exposes campaign finance data — candidat...Federal Register APIJSON REST API for the daily Federal Register published by the Office of the Federal Register and GPO. Expos...GovInfo APIU.S. Government Publishing Office (GPO) GovInfo developer hub. The Collections API at api.govinfo.gov deliv...GovTrackGovTrack.us civic-tech site tracking U.S. Congress — bills, votes, members, committees, congressional distr...Regulations.gov APIThe Regulations.gov v4 REST API exposes federal regulatory dockets, documents (Proposed Rules, Rules, Suppo...SAM.gov APIsSystem for Award Management (SAM.gov), the U.S. federal procurement and financial assistance system, expose...Socrata Open Data API (Tyler Data and Insights)Socrata Open Data API (SODA) is the read/write JSON API powering open data portals at federal, state, count...Treasury Fiscal Data APIBureau of the Fiscal Service API at api.fiscaldata.treasury.gov exposing Treasury's authoritative fiscal da...USAspending.gov APIThe USAspending API, maintained by the U.S. Department of the Treasury, provides public access to comprehen...
Minimal 2 Almost no public developer surface
Score breakdown
Frequency
42.8
log-scaled weighted occurrences
Breadth
0.5
spread across providers
Quality lift
34.1
mean composite of providers using it
Cohesion
4.2
strength of nearest seed neighbor
Related tags
Where this tag comes from
Provider tag15
Api tag24
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.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/federal"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/federal"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/federal/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.