io.github.kira-autonoma/devtools
mcp-devtools-server
23 developer utilities — base64, JWT, UUID, hash, QR, regex, timestamps. No API keys.
alive probed 2026-10-15
23tools
3.2ktokens in Claude Opus 5.5
3.4ktokens in Claude Code
1.6 %of a 200k context window
1.8ko200k_base estimate
380 msto initialize
12 msto list tools
- Run it
- npx -y mcp-devtools-server@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mcp-devtools-server 1.0.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/kira-autonoma/devtools-mcp
- Registry
- active, updated 2026-03-18 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| number_base | 120 | 7 % |
| regex_test | 110 | 6 % |
| hash | 101 | 6 % |
| qr_generate | 101 | 6 % |
| random_string | 98 | 6 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.kira-autonoma/devtools)
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.