io.github.stoneskin/open-memex
open-memex
Local-first memory for AI coding agents — Markdown + SQLite FTS5, shared across editors via MCP.
alive probed 2026-10-15
11tools
5.1ktokens in Claude Opus 5.5
5.2ktokens in Claude Code
2.5 %of a 200k context window
3.1ko200k_base estimate
355 msto initialize
10 msto list tools
- Run it
- npx -y open-memex@0.8.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- open-memex 0.8.1
- Capabilities
- tools
- Instructions
- 3 761 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/stoneskin/open-memex
- Website
- https://stoneskin.github.io/open-memex/
- Registry
- active, updated 2026-10-08 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| memory_add | 618 | 20 % |
| memory_list | 455 | 15 % |
| memory_supersede | 392 | 13 % |
| memory_search | 312 | 10 % |
| memory_submit | 269 | 9 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.stoneskin/open-memex)
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.