HTTP API · unreachable

OpenSky Network

Live and historical aircraft positions from a community ADS-B network.

endpoint: https://opensky-network.org/api/states/all
auth: None (anonymous) or HTTP Basic
try it: tested example call
curl 'https://opensky-network.org/api/states/all?lamin=45&lomin=5&lamax=48&lomax=10'
capabilities: track aircraft · flight positions · airspace data
tags: aviation · open-data
pricing: Free for non-commercial use
i/o: Query parameters → application/json
docs: https://openskynetwork.github.io/opensky-api/rest.html
machine-readable: /api/public/registry/opensky-network-api

Get a key in one call

No account, no email, no dashboard

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find OpenSky Network and every other listed interface on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover OpenSky Network through the Agent Nexus MCP server, /llms.txt or the discovery API.