NASA FIRMS active fires
NASA satellite detections of active fires worldwide, within hours of each overpass, free with no key.
Self-serve API, no key, irlpls adapter · docs
- Mode
- Live · hours
- Coverage
- Global
- Price
- Free
- Key
- Not needed
- Resale
- Not stated
- AI training
- Not stated
Eight links
0 of 8 links claimed · 0 evidenced
Compiled from public sources, unclaimed. What they mean
Each link
- 1. Real personNot stated
Person · Not stated
Still open: Detections are made by algorithms on satellite data, not by people
- 2. Captured locallyNot stated
Camera · Not stated
Still open: Not a signed capture, so none (STANDARD §3). What is stated: Each detection names the satellite and instrument (MODIS, VIIRS, Landsat). Sensor identity is operator-asserted metadata
Place · Claimed. Each detection carries the latitude and longitude of the centre of the satellite pixel where the fire was seen (about 375 m for VIIRS, 1 km for MODIS, 30 m for Landsat), with scan/track pixel dimensions
Still open: The fire can be anywhere within the pixel, and pixels grow towards the swath edge; NRT geolocation error is usually under 100 m but can be several kilometres after spacecraft manoeuvres or space-weather events
Needs both: the weaker one counts.
- 3. Genuine deviceNot stated
App · Not stated
Still open: No signing or published hashes of delivered files
- 4. Sealed captureNot stated
Camera · Not stated
Still open: Not a signed capture, so none (STANDARD §3). What is stated: Each detection names the satellite and instrument (MODIS, VIIRS, Landsat). Sensor identity is operator-asserted metadata
Content · Claimed. Detections carry a confidence value; the FAQ says VIIRS data 'have been extensively tested', MODIS validation used coincident ASTER observations, and Landsat validation used aerial, commercial satellite, MODIS and VIIRS data
Still open: False detections are known (e.g. super-heated smoke plumes at night, sun glint on reflective roofs, degraded data after spacecraft manoeuvres); per-detection error rates are not published
Counts only with a stated signing mechanism (C2PA, a manifest).
- 5. Known timestampReported
Time · Claimed. Each detection carries the acquisition date and time (UTC) of the overpass
Still open: How timestamps are validated is not documented in pages read
A time stated, not attested (RFC 3161, a log): Reported.
- 6. Tracked in transitNot stated
Custody record (optional field) · Not stated
- 7. Independently verifiedNot stated
Cross-check · Not stated
Still open: Each detection stands alone; a buyer can compare across sensors (VIIRS vs MODIS) themselves
- 8. Delivered to youNot stated
Delivery receipt (optional field) · Not stated
API
No account or key needed.
- base
- https:/
/ firms.modaps.eosdis.nasa.gov - auth
- Optional: Account credentials
- access
- Self-serve
- adapter
nasa_firms
- GET /
api/ area/ csv/ {MAP_KEY}/ {SOURCE}/ {AREA_COORDINATES}/ {DAY_RANGE} - GET /
data/ active_fire/ {product}/ csv/ {PREFIX}_{Region}_{24h|48h|7d}.csv - GET /
api/ active_fire_files/ all? format= json - GET /
api/ data_availability/ csv/ {MAP_KEY}/ {SENSOR}
Rate limit. 5,000 requests per 600 s, per key. Transactions per MAP_KEY per 10 minutes; a large request (several days) can count as several transactions. source
Sources
15 sources
- Earthdata alert (issued 2025-05-02, read 2026-10-28): Suomi NPP delivery ceases Nov. 2, 2026; Terra and Aqua platforms begin shutting down operations in late 2026/early 2027 www.earthdata.nasa.gov
- Area API URL pattern and optional DATE suffix; SOURCE list (LANDSAT_NRT US/Canada only, MODIS_NRT, VIIRS_SNPP/NOAA20/NOAA21_NRT, *_SP); DAY_RANGE 1-5; free MAP_KEY; 5000 transactions per 10 minutes; URT under 60 seconds for much of the US and Canada; RT/URT replaced by NRT or dropped after 6 hours; 'download script' use firms.modaps.eosdis.nasa.gov
- API services index (area, data_availability, map_key, kml_fire_footprints; country API currently not available) firms.modaps.eosdis.nasa.gov
- MAP_KEY is free, requested with an email address and sent by email firms.modaps.eosdis.nasa.gov
- data_availability endpoint and SENSOR list firms.modaps.eosdis.nasa.gov
- NRT within 3 hours (best effort), RT within 30 minutes, URT within 5 minutes (elsewhere 'within a minute') for US/Canada; Landsat 30-60 mins US/Canada; pixel sizes 375 m / 1 km / 30 m; location is pixel centre; NRT geolocation error and manoeuvres; 24h/48h/7d files updated every 60 minutes; VIIRS extensively tested; MODIS ASTER validation; Landsat validation; known false detections; cite 'NASA FIRMS'; full and open sharing www.earthdata.nasa.gov
- Suomi NPP data delivery ceases Nov. 2, 2026; users should move to NOAA-20 and NOAA-21 firms.modaps.eosdis.nasa.gov
- LANCE: full and open sharing; data provided 'as is', users bear all responsibility and liability www.earthdata.nasa.gov
- ESDIS data-use guidance: NASA-led mission data CC0 unless marked; non-NASA data follow the sponsor's licence; acknowledge NASA; no implied endorsement www.earthdata.nasa.gov
- Keyless list of downloadable 24h/48h/7d CSV, KML and shapefile files per sensor and region firms.modaps.eosdis.nasa.gov
- Keyless global 24h VIIRS NOAA-20 CSV returned real detections (fetched 2026-10-26, latest acquisition 2026-10-27 02:06 UTC) firms.modaps.eosdis.nasa.gov
- Calling the area API with an invalid key returns HTTP 400 'Invalid MAP_KEY.' (tested 2026-10-26) firms.modaps.eosdis.nasa.gov
- No first-party FIRMS MCP server in the official registry; a third-party Pipeworx server io.github.pipeworx-io/nasa-firms is listed registry.modelcontextprotocol.io
- Area API: MAP_KEY required, 5000 transactions per 10-minute interval; bad key returns 'Invalid MAP_KEY.' HTTP 400 firms.modaps.eosdis.nasa.gov
- Keyless static file returned CSV on 2026-10-27 firms.modaps.eosdis.nasa.gov
Notes
About. NASA's Fire Information for Resource Management System (FIRMS) publishes active fire and thermal hotspot detections from the MODIS, VIIRS and Landsat satellite sensors, globally within about 3 hours of an overpass and faster (real-time / ultra real-time) over the US and Canada. Global and regional CSV, KML and shapefile files of the last 24 hours, 48 hours and 7 days download with no key; a free MAP_KEY unlocks an area API returning CSV detections for any bounding box over 1-5 days.
Price. Free. The 24h/48h/7d files need no key; the area API needs a free MAP_KEY requested with an email address.
Coverage. Worldwide for MODIS and VIIRS; Landsat and the faster real-time products cover the US and Canada only. Cloud and smoke can hide fires; small or short fires between overpasses can be missed.
Timing. FIRMS FAQ: 'FIRMS makes the NRT data available within 3 hours of a satellite observation (on a best-effort basis); the RT data are available within 30 minutes of overpass and the URT within 5 minutes.' (US and Canada for RT/URT)
Licence. No FIRMS-specific licence. NASA ESDIS data-use guidance: data from NASA-led missions are CC0 unless marked otherwise, while non-NASA data follow their sponsor's licence; NASA asks to be acknowledged ('NASA FIRMS') and must not be implied to endorse a product. LANCE data are provided 'as is'. AI training and resale are not mentioned. Landsat is USGS-operated, so CC0 is not clearly stated for the Landsat NRT layer.
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Compiled from public sources · updated 2026-10-28JSONSiteCompare