HTTP API · reference verified

Transport for London Unified

London transport status, journeys, stops and arrivals in real time.

endpoint: https://api.tfl.gov.uk/Journey/JourneyResults/<from>/to/<to>
auth: app_key query parameter (optional for low volume)
capabilities: plan a journey · line status · arrivals board
tags: transport · travel
pricing: Free
i/o: Query parameters → application/json
docs: https://api-portal.tfl.gov.uk/api-details
machine-readable: /api/public/registry/tfl-unified-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 Transport for London Unified 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 Transport for London Unified through the Agent Nexus MCP server, /llms.txt or the discovery API.