NASA natural events and fire counts (TRIPWIRE)

CEV-OS / Data API / NASA natural events and fire counts (TRIPWIRE)

CEV-OS Data API · last updated 2026-11-04. Status: live. Version 1.

Use this when you need NASA EONET open natural events (Smithsonian/SIVolcano sources dropped) plus NASA FIRMS fire-detection counts per country per day.

What it is

NASA EONET open events from the last 30 days, coarsened to country, excluding events whose source is Smithsonian / SIVolcano (non-commercial only). Plus NASA FIRMS VIIRS fire-detection counts per country per day (NOAA-20/21; cells already privacy-filtered by TRIPWIRE). Cite NASA.

Endpoints

REST: GET /v1/natural-events on https://api.cev-os.com
Legacy host (same service): GET /v1/natural-events on https://cev-os.com
MCP tool: get_natural_events on https://mcp.cev-os.com/mcp

Parameters

Query parameters for `GET /v1/natural-events`
Name	Type	Description	Constraints
`country`	string	ISO 3166-1 alpha-2 filter.	example BR; pattern ^[A-Za-z]{2}$

Example request

No account and no key. Query values below are the examples or defaults from the registry. An optional free key (header x-api-key) raises the limits; create one at https://cev-os.com/#api_keys after signing in with a verified email (Google sign-in is already verified).

curl -s "https://api.cev-os.com/v1/natural-events?country=BR"

Example response

Every /v1 response is a JSON envelope (schema_version, product, timestamps, license, attribution, data). The registry example is the data member:

{
  "events_count": 1,
  "fires_count": 1,
  "events": [
    {
      "title": "Wildfire - Amazonas",
      "category": "wildfire",
      "country": "BR",
      "date": "2026-11-01T00:00:00Z",
      "source": "FIRMS",
      "url": "https://eonet.gsfc.nasa.gov/"
    }
  ],
  "fires": [
    {
      "country": "BR",
      "day": "2026-11-01",
      "detections": 42,
      "frp_mw": 310
    }
  ]
}

Update frequency

TRIPWIRE: EONET 30 min, FIRMS 60 min; Data API caches 5 min.

Public cache: 300 seconds (Cache-Control: public, max-age=300).

Sources, license and usage

License status: cleared with attribution. NASA EONET and FIRMS are NASA open data; cite NASA. Smithsonian/SIVolcano-sourced EONET events are dropped.

Underlying sources
Source	License	commercialOk	Terms
NASA Earth Observatory Natural Event Tracker (EONET)	NASA open data (public domain); cite NASA. Smithsonian/SIVolcano-sourced events are dropped.	true	—
NASA FIRMS (LANCE / ESDIS)	NASA open data (CC0); cite NASA FIRMS / LANCE	true	—

Attribution (show this wherever you display the data):

NASA Earth Observatory Natural Event Tracker (https://eonet.gsfc.nasa.gov/). Cite NASA.
NASA FIRMS (https://earthdata.nasa.gov/firms), part of NASA LANCE / ESDIS. Cite NASA. Events sourced from the Smithsonian Institution / SIVolcano are omitted (non-commercial terms).

Privacy class: public-derived. Access: public. Price: free (price is null; pay-per-call is not active).

Gaps

FIRMS cells that miss a country polygon (coast/ocean) are dropped.
EONET events without a country mapping are returned with country null.

Disclaimer

Informational. Not for life-safety use. Cite NASA. Smithsonian-sourced volcano events are omitted.

Data API hub (all products, limits, license notes)
MCP Registry listing com.cev-os/data
OpenAPI 3.1
Machine product list: /v1/products
CEV-OS TRIPWIRE incidents (explainer)

Reference data, not investment advice.