io.github.Flightradar24/fr24api-mcp

Flightradar24 Gateway

Is the io.github.Flightradar24/fr24api-mcp MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

MCP server providing access to the Flightradar24 API for real-time and historical flight data

alive probed 2026-11-14 · unchanged since 2026-10-31

15tools

11ktokens in Claude Opus 5.5

5.3 %of Claude's 200k window

4.2×the median server

523 msto initialize

40 msto list tools

Run it: npx -y @flightradar24/fr24api-mcp@1.0.1 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: Flightradar24 Gateway 1.0.1
Capabilities: tools
Instructions: none
Of a 1M window: 1.1 % of a 1M context window
Count: 11k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 11k. The o200k_base estimate is 6.3k. Counted again when the tool definitions change. Method.
Repository: https://github.com/Flightradar24/fr24api-mcp
Registry: active, updated 2025-09-09 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.70×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
get_historic_flights_positions_full	1 178	694	11 %
get_live_flights_positions_full	1 153	679	11 %
get_historic_flights_positions_light	1 144	674	11 %
get_live_flights_positions_light	1 121	660	11 %
get_live_flights_count	1 112	655	10 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention flightradar24 or historical.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.