org.flatearthscience/flatearthscience-org
Flat Earth Science
Is the Flat Earth Science MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.
Earth curvature, horizon, flight, Sun and daylight calculators plus tested flat-earth claims.
alive probed 2026-11-15 · unchanged since 2026-11-12 · HTTP 200
- Endpoint
- https://flatearthscience.org/api/mcp (streamable-http)
- Host
- flatearthscience.org
- Protocol
- 2025-11-25
- Reports itself as
- flatearthscience-org 1.0.0
- Capabilities
- extensions, resources, tools
- Instructions
- 1 020 characters
- Of a 1M window
- 0.4 % of a 1M context window
- Count
- 3.9k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 4.0k. The o200k_base estimate is 2.1k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/pyxlino/flatearthscience-mcp
- Website
- https://flatearthscience.org
- Registry
- active, updated 2026-11-11 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.79×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| get_sun_position | 649 | 362 | 17 % |
| calculate_curvature | 646 | 360 | 17 % |
| get_flight_distance | 642 | 358 | 17 % |
| get_daylight_hours | 522 | 291 | 14 % |
| compare_flat_map_distance | 405 | 226 | 11 % |
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.