io.github.myrakrusemark/memento-protocol
memento-protocol
Persistent memory for AI agents. Store what matters, recall by meaning, skip the rest.
alive probed 2026-10-14
15tools
4.6ktokens in Claude Opus 5.5
4.7ktokens in Claude Code
2.3 %of a 200k context window
2.7ko200k_base estimate
343 msto initialize
14 msto list tools
- Run it
- npx -y memento-mcp@0.1.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- memento-protocol 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/myrakrusemark/memento-protocol
- Registry
- active, updated 2026-02-18 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| memento_store | 359 | 13 % |
| memento_item_create | 315 | 11 % |
| memento_item_update | 289 | 11 % |
| memento_consolidate | 278 | 10 % |
| memento_skip_add | 199 | 7 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.myrakrusemark/memento-protocol)
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.