io.github.koki-develop/esa-mcp-server
esa
A Model Context Protocol (MCP) server for esa.io
alive probed 2026-10-15
10tools
3.0ktokens in Claude Opus 5.5
3.1ktokens in Claude Code
1.5 %of a 200k context window
1.8ko200k_base estimate
158 msto initialize
7 msto list tools
- Run it
- npx -y @koki-develop/esa-mcp-server@0.3.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- esa 0.3.2
- 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/koki-develop/esa-mcp-server.git
- Registry
- active, updated 2025-09-11 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| get_posts | 380 | 21 % |
| create_post | 260 | 14 % |
| update_post | 243 | 13 % |
| get_post | 171 | 9 % |
| get_post_comments | 168 | 9 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.koki-develop/esa-mcp-server)
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.