MCP Server

The Model Context Protocol (MCP) is an open standard that lets AI assistants — Claude, Cursor, and others — call external tools and retrieve structured data. LoomBrain’s MCP server exposes your knowledge graph as a set of tools that any MCP-compatible client can invoke during a session.

The server is hosted at:

https://mcp.loombrain.com/mcp

No local server process required. Authentication is handled via OAuth 2.1 — the first time a client connects, a browser window opens for sign-in. After that, tokens are stored in the system keychain and refreshed automatically.

Available tools

Tool	Description
`lb_graph_health`	Returns health metrics for your graph (node count, pending captures, links)
`lb_search`	Keyword, semantic, or hybrid search across all nodes
`lb_get_context`	Retrieves ranked context nodes for a topic, optionally scoped to a PARA item
`lb_get_related`	Returns 1-hop graph neighbors for a given node
`lb_add_node`	Inserts a new node directly into the graph
`lb_capture`	Submits a URL or raw content for async ingestion
`lb_create_para_item`	Creates a new PARA item (project, area, or resource)
`lb_archive_para_item`	Archives a PARA item
`lb_unarchive_para_item`	Restores an archived PARA item
`lb_list_para_items`	Lists PARA items, with optional category and status filters
`lb_update_node_tags`	Replaces the PARA tag associations for a node

Supported clients

Claude Code — add via claude mcp add command
Claude Desktop — configure in claude_desktop_config.json
Cursor — configure via .mcp.json in the project root
Any client that supports the MCP HTTP transport (type: "url")

See Setup for client-specific configuration instructions.