# GoFlightLabs Flights by Callsign

> GoFlightLabs Flights by Callsign is a paid API for AI agents from GoFlightLabs at goflightlabs.mpp.tempo.xyz, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-13).

Returns real-time flight information for a specific flight identified by its callsign (e.g. UAL123, BAW456).

## Facts

- Endpoint: GET https://goflightlabs.mpp.tempo.xyz/flights-callsign?utm_source=zero.xyz
- Price: $0.005/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Provider: GoFlightLabs
- Website: https://goflightlabs.com
- Tags: flights, tracking, prices, airlines, airports, data
- Canonical page: https://www.zero.xyz/c/goflightlabs-flights-callsign-87c46caf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KJxr5pceFb49XdWEVFh6g

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability goflightlabs-flights-callsign-87c46caf
```

Example prompt: Can you pull up the current flight details for callsign UAL523 — I want to know where it is, its altitude, speed, and which airports it's flying between?

## When to prefer this

Use this endpoint when you have a specific ICAO or airline callsign (e.g. UAL523, BAW777) and need real-time positional and status data for that exact flight. Prefer this over the general flights endpoint when the callsign is already known. Use the airline endpoint if you want all flights for a carrier, or the flight-by-date endpoint for historical lookups.

## Known failure modes

- Callsign not found or inactive — returns empty or error response
- Invalid callsign format — API may return a 400 or empty result
- Flight has landed or not yet departed — may return no live data
- API rate limit exceeded — returns 429 error
- Authentication or payment failure — returns 401/402 error

## How this service works

Flights by callsign

## Output

Returns real-time flight data for the queried callsign, including aircraft position (latitude/longitude), altitude, speed, departure and arrival airports, flight status, and other flight metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/goflightlabs-flights-callsign-87c46caf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from goflightlabs.mpp.tempo.xyz](https://www.zero.xyz/host/goflightlabs.mpp.tempo.xyz/llms.txt)