io.polystate/mcp
Polystate
Is the Polystate MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.
Relocation, residency, visa, company-formation and crypto-tax data for about 170 countries.
alive probed 2026-11-14 · unchanged since 2026-11-12 · HTTP 200
- Endpoint
- https://polystate-mcp-server.shy-surf-2fdf.workers.dev/mcp (streamable-http)
- Host
- polystate-mcp-server.shy-surf-2fdf.workers.dev
- Protocol
- 2025-11-25
- Reports itself as
- polystate 0.3.0
- Capabilities
- completions, resources, tools
- Instructions
- 2 077 characters
- Of a 1M window
- 1.1 % of a 1M context window
- Count
- 11k tokens in Claude Opus 5.5, exact, measured 2026-11-12. With the Claude Code prefix mcp__…__ on each tool name: 11k. The o200k_base estimate is 6.6k. Counted again when the tool definitions change. Method.
- Website
- https://polystate.io
- 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, 1.65×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| optimize_relocation | 1 866 | 1 133 | 17 % |
| compare_jurisdictions | 1 095 | 665 | 10 % |
| get_legal_changes | 1 028 | 624 | 9 % |
| get_tax_rates | 878 | 533 | 8 % |
| tax_compare | 813 | 494 | 7 % |
Compare this server with others.
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- Pilotex KYC club.pilotex/kyc · needs auth
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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.