flight.status

Live flight status and tracking. Pass ident as an airline flight designator (ICAO "UAL1" or IATA "UA1") or an aircraft tail number; returns recent and upcoming instances of that flight with origin/destination airports (ICAO/IATA/name/city/timezone), status, cancellation/diversion flags, scheduled vs estimated vs actual gate and runway times (out/off/on/in), departure and arrival delays, en-route progress percent, aircraft type and registration, and route distance. limit controls how many instances return (default 5, newest first by scheduled departure). Real-time operational data — answer "where is this flight, is it delayed, when does it land" with live values. For aircraft registry data see /api/aircraft/lookup; for airport metadata see /api/airport/lookup.

price

$0.0180 USDC per call

method

GET/api/flight/status

payment

x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)

auth

None. Sign the payment, retry with PAYMENT-SIGNATURE.

tier

Tier 2 — LLM/render upstream included

Parameters

Name	Type	Description
`ident`required	string	Flight designator (ICAO UAL1 or IATA UA1) or aircraft tail number. min 2 chars · max 12 chars · match ^[A-Za-z0-9-]+$
`identType`	string	one of: designator \| registration \| fa_flight_id
`limit`	integer	min 1 · max 15

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/flight/status?ident=xx&identType=designator&limit=5'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/flight/status?ident=xx&identType=designator&limit=5' \
  -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/flight/status?ident=xx&identType=designator&limit=5'

TypeScript / Node — @2sio/sdktypescript

import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.flight.status({
  "ident": "xx",
  "identType": "designator",
  "limit": 5
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)

Python — 2siopython

import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.flight.status(ident="xx", identType="designator", limit=5)

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)

MCP — Claude Desktop / AgentKit / any MCP hostjson

// 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": "flight.status",
    "arguments": {
      "ident": "xx",
      "identType": "designator",
      "limit": 5
    }
  }
}

Response

Field	Type	Description
`ident`	string
`count`	number
`flights`	array
`source`	object

Example response datajson

{
  "ident": "example",
  "count": 1,
  "flights": [
    {
      "ident": "example",
      "identIata": "example",
      "operator": "example",
      "flightNumber": "example",
      "registration": "example",
      "aircraftType": "example",
      "origin": {
        "icao": "example",
        "iata": "example",
        "name": "example",
        "city": "example",
        "timezone": "example"
      },
      "destination": {
        "icao": "example",
        "iata": "example",
        "name": "example",
        "city": "example",
        "timezone": "example"
      },
      "status": "example",
      "cancelled": false,
      "diverted": false,
      "scheduledOut": "example",
      "estimatedOut": "example",
      "actualOut": "example",
      "actualOff": "example",
      "actualOn": "example",
      "scheduledIn": "example",
      "estimatedIn": "example",
      "actualIn": "example",
      "progressPercent": 1,
      "departureDelaySec": 1,
      "arrivalDelaySec": 1,
      "routeDistanceKm": 1
    }
  ],
  "source": {
    "provider": "example",
    "url": "example"
  }
}

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec (per-op x-payment-info, x402Payment security)
/.well-known/x402 — machine-readable service descriptor for x402-aware crawlers
/.well-known/mcp/server-card.json — MCP SEP-1649 server card
/llms.txt — plain-text manifest for LLM ingestion

2s.io is x402-native. Every call is paid per-request from a USDC-funded EVM wallet on Base — no signup, no API keys, no monthly fees. Source code: github.com/2s-io/sdk.