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Full detail: Where this data comes from
The Federal Aviation Administration (FAA) is the United States civil aviation authority, an operating administration of the U.S. Department of Transportation. It regulates and certificates aircraft, airmen, airports and air carriers, operates the National Airspace System and its air traffic control, and issues the aeronautical information the entire U.S. travel and aviation chain runs on — NOTAMs, TFRs, charts, the 28-day NASR subscription, aircraft registration and airport data. It sits upstream of commercial travel distribution rather than inside it — the FAA sells no inventory and is not a GDS, NDC or channel participant, but every airline, GDS, OTA, flight-planning app and drone service supplier in the United States consumes FAA data as a source of truth. Its API posture is genuinely mixed and honest reporting requires saying so. The Airport Status Web Service and the Aeronautic Product Release API are published under a Creative Commons Zero licence, answer unauthenticated over HTTPS, and ship real OpenAPI 3.0.1 documents through a public Gravitee developer portal at api.faa.gov. Alongside them the FAA runs a CKAN 2.11.4 catalog and two ArcGIS Open Data hubs with DCAT-US 1.1 feeds and bulk CSV/GeoJSON/KML export. But the NOTAM API, the Air Carrier Pilot Records Database API and SWIM are gated — client_id/client_secret headers, operator eligibility restricted by regulation, or an executed SWIM agreement — and LAANC drone authorization is reachable only through FAA-approved UAS Service Suppliers, never directly.
APIs.json: https://raw.githubusercontent.com/api-evangelist/faa/refs/heads/main/apis.yml
- Travel
- United States
- Aviation
- Airports
- Government
- Regulator
- Open Data
- Airspace
- Drones
- Aeronautical Information
- Created: 2026-07-28
- Modified: 2026-07-28
Airport delay summaries and per-airport status for 40+ major US national airports, sourced from fly.faa.gov and served as JSON or XML. Keyed on IATA three-letter airport codes. Answers unauthenticated and the OpenAPI declares a Creative Commons Zero (CC0) licence. Verified live 2026-07-28 (HTTP 200, real delay payload).
- Human URL: https://api.faa.gov/
- Base URL:
https://external-api.faa.gov/asws/api
- Airports
- Delays
- Flight Information
- Travel
- Open Data
Chart publication metadata and download API from FAA Aeronautical Information Services. Thirty-four operations across VFR sectionals, terminal area charts, IFR enroute and oceanic charts, terminal procedures (dTPP), digital obstacle files, chart supplements, CIFP and the NFDC NASR 28-day subscription — each exposed as an /info edition lookup and a /chart download. Answers unauthenticated; responses use the FAA-proprietary arpa_response XML namespace. Verified live 2026-07-28 (HTTP 200).
- Human URL: https://api.faa.gov/
- Base URL:
https://external-api.faa.gov/apra
- Aeronautical Charts
- Aviation
- NASR
- Open Data
- Airports
Machine interface for submitting and searching pilot records in the FAA Pilot Records Database, the reporting obligation created for air carriers by 14 CFR Part 111. Requires client_id and client_secret request headers. The FAA's own portal listing states access is restricted to operators under Part 121, 135, 125, 91K, Air Tour, Public Aircraft or 91 Corporate and that other public or private entities will not be authorized.
- Human URL: https://api.faa.gov/
- Base URL:
https://external.apic4e.faa.gov
- Pilot Records
- Airlines
- Compliance
- Aviation Safety
- Regulator
Single-operation API for submitting passenger discrepancy reports into the FAA Safety Assurance System. The harvested OpenAPI declares apiKey and appId header security schemes and carries a relative server URL; the portal lists external and internal Gravitee entrypoints.
- Human URL: https://api.faa.gov/
- Base URL:
https://external.apic4e.faa.gov/axh-sasp-api/sas
- Aviation Safety
- Compliance
- Reporting
- Regulator
Notices to Air Missions retrieval API. Probe-confirmed live but gated — an unauthenticated GET returned HTTP 401 with the body {"message":"Unauthorized", "http_status_code":401} on 2026-07-28, while the bare external-api.faa.gov host returns 404, so the route exists behind credentials. Access is via a client_id and client_secret issued from the api.faa.gov developer portal. No public OpenAPI was published for this API in the portal's public catalog, so none was harvested.
- Human URL: https://api.faa.gov/
- Base URL:
https://external-api.faa.gov/notamapi/v1
- NOTAM
- Flight Information
- Airspace
- Aviation
Retrieves designee information from the FAA Data Management System using either a Designee Number or an ODA Key ID. Listed in the api.faa.gov portal under the "Public" category, but the only entrypoint the portal publishes is internal.apic4e.faa.gov, so no externally reachable base URL is documented and no OpenAPI page is attached.
- Human URL: https://api.faa.gov/
- Designees
- Regulator
- Aviation
The FAA's public data clearinghouse at catalog.data.faa.gov runs CKAN 2.11.4 and exposes the standard CKAN Action API. Verified 2026-07-28 — status_show returned site_title "Federal Aviation Administration" and ckan_version 2.11.4, and package_list returned six aeronautical chart product datasets. A DCAT-US 1.1 /data.json feed is also published.
- Human URL: https://catalog.data.faa.gov/dataset
- Base URL:
https://catalog.data.faa.gov/api/3/action
- Open Data
- Data Catalog
- CKAN
- Aeronautical Charts
ArcGIS Open Data hub published by "Federal Aviation Administration - AIS" carrying 73 datasets — class airspace, frequencies, runways, navaids, obstacles, VFR and IFR chart tile services. Every feature dataset is offered as an ArcGIS GeoServices REST FeatureServer plus bulk CSV, GeoJSON, KML and shapefile download, and the hub publishes a DCAT-US 1.1 catalog. Verified 2026-07-28 (HTTP 200, 73 datasets).
- Human URL: https://ais-faa.opendata.arcgis.com/
- Base URL:
https://services6.arcgis.com/ssFJjBXIUyZDrSYZ/arcgis/rest/services
- Open Data
- Airspace
- GIS
- Airports
- Aeronautical Information
ArcGIS Open Data hub for unmanned aircraft data — UAS Facility Maps (the LAANC altitude grid), national security UAS flight restrictions, part-time restrictions, FAA-Recognized Identification Areas and the Sporting Event Automated Monitoring System. 28 datasets, ArcGIS GeoServices REST plus CSV/GeoJSON/KML/ZIP export, DCAT-US 1.1 feed. Verified 2026-07-28 (HTTP 200, 28 datasets).
- Human URL: https://udds-faa.opendata.arcgis.com/
- Base URL:
https://services6.arcgis.com/ssFJjBXIUyZDrSYZ/arcgis/rest/services
- Drones
- UAS
- Open Data
- Airspace
- GIS
Unauthenticated XML feed of national airspace system status — ground stop programs, ground delay programs, airport closures and arrival/departure delays — as consumed by nasstatus.faa.gov. Verified live 2026-07-28 (HTTP 200, real ground stop and ground delay program data keyed on IATA airport codes).
- Human URL: https://nasstatus.faa.gov/
- Base URL:
https://nasstatus.faa.gov/api/airport-status-information
- Delays
- Airports
- Flight Information
- Travel
- Open Data
Unauthenticated JSON list of active Temporary Flight Restrictions, each carrying a NOTAM id, TFR type, ARTCC facility identifier, state and effective description. Verified live 2026-07-28 (HTTP 200, application/json, 28,701 bytes).
- Human URL: https://tfr.faa.gov/
- Base URL:
https://tfr.faa.gov/tfrapi/exportTfrList
- TFR
- Airspace
- NOTAM
- Open Data
- Aviation
- Website
- Documentation
- Developer Portal
- Data Portal
- Data Catalog
- Open Data
- Open Data
- Bulk Download
- Website
- Website
- Website
- Website
- Website
- Website
- Kin Lane — kin@apievangelist.com
See review.yml for the full switching-cost review: interface shape, second source, exit path, identifier portability, contractual lock-in, access gate and distribution model, with the HTTP status of every URL probed on 2026-07-28.