net.heropen/heropen
heropen — AI Agent Memory
Is the heropen MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Persistent memory for AI agents: local-first MCP server, zero-config. No cloud, no API keys.
alive probed 2026-11-15 · unchanged since 2026-10-31
- Run it
- uvx heropen@2.0.8 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- heropen 2.0.8
- Capabilities
- experimental, prompts, resources, tools
- Instructions
- 647 characters
- Of a 1M window
- 0.5 % of a 1M context window
- Count
- 5.5k tokens in Claude Opus 5.5, exact, measured 2026-10-27. With the Claude Code prefix mcp__…__ on each tool name: 5.6k. The o200k_base estimate is 3.3k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/Koradji77/heropen
- Website
- https://heropen.net
- Registry
- active, updated 2026-10-28 · registry entry
- Changes
- 3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.64×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| auto_save_turn | 1 156 | 706 | 21 % |
| ingest_local_turns | 883 | 539 | 16 % |
| add_memory | 493 | 301 | 9 % |
| prime_conversation | 491 | 300 | 9 % |
| search_memory | 475 | 290 | 9 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- SourceMed io.sourcemed/sourcemed · alive
- Jitters the VibeCoder lol.vibeoverflow/jitters · alive
- me.openbrowser/openbrowser-ai · crashed on start
- AppLedger net.appledger/appledger · alive
- US HTS Code Lookup net.hs-code/hts-lookup · crashed on start
- Unfret net.unfret/mcp · alive
- Benzi net.varianttech/benzi · alive
- A4A (Agent-for-Agent Network) network.a4a/a4a-mcp · 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
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-27 07:00 | alive | 1.1 s | 12 | 5.5k | 3.3k |
| 2026-10-24 06:35 | alive | 1.5 s | 9 | 2.1k | |
| 2026-10-17 06:20 | alive | 2.2 s | 8 | 2.7k | 1.6k |
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.