io.github.x-tkn/x-tkn-mcp
x-tkn
Lets an AI agent hand a secret to a person as a one-time link, with no way to read it back.
alive probed 2026-10-14
3tools
1.1ktokens in Claude Opus 5.5
1.2ktokens in Claude Code
0.6 %of a 200k context window
671o200k_base estimate
293 msto initialize
9 msto list tools
- Run it
- npx -y @x-tkn/mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- x-tkn 1.0.1
- Capabilities
- tools
- Instructions
- 460 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Registry
- active, updated 2026-10-11 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| create_secret | 491 | 73 % |
| revoke_secret | 97 | 14 % |
| check_status | 83 | 12 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.x-tkn/x-tkn-mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.