io.github.ontorata/ratary
Ratary Memory MCP
Is the Ratary Memory MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Persistent coding memory for AI assistants. MCP stdio, hybrid search, graph, context.
alive probed 2026-11-14 · unchanged since 2026-10-31
6tools
460tokens in Claude Opus 5.5
0.2 %of Claude's 200k window
0.2×the median server
354 msto initialize
8 msto list tools
- Run it
- npx -y @ratary/mcp-server@1.1.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- ratary 1.0.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 460 tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 508. The o200k_base estimate is 234. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/ontorata/ratary
- Website
- https://github.com/ontorata/ratary/tree/main/MCP
- Registry
- active, updated 2026-07-06 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.97×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| save_memory | 124 | 63 | 27 % |
| get_context | 83 | 42 | 18 % |
| search_memory | 81 | 41 | 18 % |
| get_memory | 67 | 34 | 15 % |
| list_agent_clients | 55 | 28 | 12 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.onelogin/onelogin-mcp · alive
- io.github.oneprofile-dev/curatedmcp-catalog-mcp · alive
- io.github.oneprofile-dev/mcp-launcher · alive
- io.github.onlsol/relay-remotify-mcp · alive
- io.github.oomkapwn/enquire-mcp · needs args
- io.github.ooples/mcp-console-automation · crashed on start
- io.github.ooples/token-optimizer-mcp · needs env
- io.github.oozoofrog/baepsae · alive
Servers that mention memory.
- AgentPlaybooks ai.agentplaybooks/agentplaybooks · needs auth
- Ambix ai.ambix/ambix · needs auth
- Atlaso Memory ai.atlaso/mcp · needs auth
- ai.butlerbrain/mcp · needs auth
- Contexel ai.contexel/contexel · needs auth
- Daystruct ai.daystruct.api/daystruct · alive
- DoneThat ai.donethat/donethat · needs auth
- ai.dataecho/mcp · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.