Search the NTSB civil aviation accident & incident database (CAROL) — US events from 1962 to present plus selected foreign investigations. Filter by aircraft registration (N-number, partial match), US state (2-letter code or name), make, model, city, and/or event date range (dateFrom/dateTo as YYYY-MM-DD). At least one filter is required. Returns matching events newest-first: NTSB number, event date/type, city/state/country, aircraft registration(s)/make(s)/model(s), highest injury level, onboard & on-ground injury counts, report type/status, and a link to the official NTSB case page. Data: NTSB (U.S. public domain), live. For aviation safety research, fleet/tail-number history, incident due-diligence, and accident-trend analysis.
/api/aviation/accidentsPAYMENT-SIGNATURE.The accidents API is a pay-per-call aviation endpoint built for AI agents and autonomous software. Search the NTSB civil aviation accident & incident database (CAROL) — US events from 1962 to present plus selected foreign investigations.
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in accidents data source for an agent tool-use loop, an MCP host, or a backend that needs aviation data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
registration | string | Aircraft registration / N-number (partial match). min 1 chars · max 20 chars |
state | string | US state, 2-letter code or full name. min 2 chars · max 40 chars |
make | string | Aircraft make (partial match), e.g. Cessna. min 1 chars · max 60 chars |
model | string | Aircraft model (partial match), e.g. 172. min 1 chars · max 60 chars |
city | string | Event city (partial match). min 1 chars · max 80 chars |
dateFrom | string | Earliest event date, YYYY-MM-DD. match ^\d{4}-\d{2}-\d{2}$ |
dateTo | string | Latest event date, YYYY-MM-DD. match ^\d{4}-\d{2}-\d{2}$ |
limit | integer | Max records to return (1-100, default 25). min 1 · max 100 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/aviation/accidents?registration=example&state=xx&make=example&model=example&city=example&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/aviation/accidents?registration=example&state=xx&make=example&model=example&city=example&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25' \ -H 'PAYMENT-SIGNATURE: <base64-json-payload>' # Or use the canonical runner (handles probe → sign → retry): # EVM_PRIVATE_KEY=0x... node --env-file=.env.local \ # --experimental-strip-types scripts/x402-pay.ts \ # 'https://2s.io/api/aviation/accidents?registration=example&state=xx&make=example&model=example&city=example&dateFrom=2024-01-01&dateTo=2024-01-01&limit=25'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.aviation.accidents({
"registration": "example",
"state": "xx",
"make": "example",
"model": "example",
"city": "example",
"dateFrom": "2024-01-01",
"dateTo": "2024-01-01",
"limit": 25
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.aviation.accidents(registration="example", state="xx", make="example", model="example", city="example", dateFrom="2024-01-01", dateTo="2024-01-01", limit=25)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "aviation.accidents",
"arguments": {
"registration": "example",
"state": "xx",
"make": "example",
"model": "example",
"city": "example",
"dateFrom": "2024-01-01",
"dateTo": "2024-01-01",
"limit": 25
}
}
}| Field | Type | Description |
|---|---|---|
query | object | |
total | number | |
truncated | boolean | |
count | number | |
items | array | |
source | object |
{
"query": {},
"total": 1,
"truncated": false,
"count": 1,
"items": [
{
"ntsbNumber": "example",
"mkey": "example",
"eventType": "example",
"eventDate": "example",
"city": "example",
"state": "example",
"country": "example",
"registration": [
"example"
],
"make": [
"example"
],
"model": [
"example"
],
"highestInjuryLevel": "example",
"injuriesOnboard": 1,
"injuriesOnGround": 1,
"reportType": "example",
"reportStatus": "example",
"reportUrl": "example"
}
],
"source": {
"provider": "example",
"url": "example",
"license": "example"
}
}