io.github.tstockham96/rail-mcp
Rail
Is the Rail MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Budgets, propose-then-approve, and receipts for agents that buy for a human. Dry-run by default.
alive probed 2026-11-15 · unchanged since 2026-10-31
- Run it
- npx -y rail-mcp@0.1.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- rail 0.1.1
- 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 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.7k. The o200k_base estimate is 896. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/tstockham96/rail-mcp
- Website
- https://github.com/tstockham96/rail-mcp#readme
- Registry
- active, updated 2026-09-29 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.78×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| decide_proposal | 351 | 197 | 22 % |
| propose_purchase | 324 | 182 | 20 % |
| set_budget | 230 | 129 | 14 % |
| refund_receipt | 228 | 128 | 14 % |
| list_proposals | 182 | 102 | 11 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- TruthTrail io.github.truthtrail/truthtrail · alive
- io.github.trypeach-io/mcp · not probed
- PointMaxx io.github.trypointmaxx/pointmaxx-mcp · alive
- io.github.tstockham96/engram · crashed on start
- melta UI io.github.tsubotax/melta-ui · alive
- io.github.tsvillain/deprecation-mcp · alive
- Juris UCC Article 9 lien search io.github.tthorstenson/juris · alive
- io.github.tuckerschreiber/fullrun · alive
Servers that mention rail.
- Adrails ai.adrails/adrails · needs auth
- Elicitly Pro ai.elicitly/pro · needs auth
- ai.firmbrain/x402-services · not found
- OneDroid Engram ai.onedroid/engram · needs auth
- Overwing ai.overwing/mcp · alive
- HostProfit ai.hostprofit/mcp · timeout
- Probity Wallet Reputation ai.probitylabs/wallet-reputation · alive
- ai.responsibleailabs/rail-score · no DNS
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.