2.0 KiB
description, icon
| description | icon |
|---|---|
| Run OpenHuman Core as a read-only stdio Model Context Protocol server. | plug |
MCP Server
OpenHuman Core can run as an opt-in stdio MCP server for local MCP clients such as Claude Desktop, Cursor, or Zed.
openhuman-core mcp
The command does not start the HTTP JSON-RPC server. It reads newline-delimited
JSON-RPC 2.0 messages from stdin and writes MCP responses to stdout. Logs go to
stderr; add --verbose for debug output.
Tools
The first MCP surface is deliberately read-only and routes through the existing controller registry plus the core security policy read gate:
| MCP tool | Backing RPC | Purpose |
|---|---|---|
memory.search |
openhuman.memory_tree_search |
Keyword search over memory-tree chunks. |
memory.recall |
openhuman.memory_tree_recall |
Semantic recall over memory-tree summaries/chunks. |
tree.read_chunk |
openhuman.memory_tree_get_chunk |
Read one chunk returned by search or recall. |
memory.search and memory.recall accept query plus optional k (default
10, capped at 50). tree.read_chunk accepts chunk_id.
Smoke Test
printf '%s\n' \
'{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"smoke","version":"0"}}}' \
'{"jsonrpc":"2.0","method":"notifications/initialized"}' \
'{"jsonrpc":"2.0","id":2,"method":"tools/list"}' \
| openhuman-core mcp
The response should include capabilities.tools from initialize and the three
tool names from tools/list. A successful run writes exactly two compact JSON
response lines to stdout; the notifications/initialized message is a
notification and has no response.
{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":"2025-06-18","capabilities":{"tools":{}},"serverInfo":{"name":"openhuman-core","version":"<crate version>"},"instructions":"..."}}
{"jsonrpc":"2.0","id":2,"result":{"tools":[{"name":"memory.search",...},{"name":"memory.recall",...},{"name":"tree.read_chunk",...}]}}