com.esimtao/mcp
EsimTao — Global Travel eSIM Data Calculator, Advisor & Device Checker
Is the EsimTao MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.
Calculate travel data needs, check phone eSIM hardware & compare fair GB prices globally.
alive probed 2026-11-15 · unchanged since 2026-11-12 · HTTP 200
- Endpoint
- https://esimtao.com/api/mcp (streamable-http)
- Host
- esimtao.com
- Protocol
- 2025-06-18
- Reports itself as
- com.esimtao/mcp 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 1.6k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 1.6k. The o200k_base estimate is 837. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/AbigailDavised/esimtao-mcp
- Website
- https://esimtao.com
- 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, 1.89×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| calculate_esim_data_usage | 374 | 198 | 24 % |
| check_device_esim_support | 352 | 186 | 22 % |
| get_esim_installation_guide | 246 | 130 | 16 % |
| recommend_travel_esim_plan | 227 | 120 | 14 % |
| lookup_esim_regional_coverage | 216 | 114 | 14 % |
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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.