io.github.yBookoff/thebrain

MCP server for TheBrain 15: search by meaning, graph traversal and batch writes over the local API

What does this entry provide?

io.github.yBookoff/thebrain is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding io.github.yBookoff/thebrain to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: npm
Repo: yBookoff/thebrain-mcp
Repo updated: Oct 14, 2026

Install command

npx -y thebrain-mcp-server@0.3.0

Install method: npm

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Oct 14, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-14T18:20:43.901437Z",
      "publishedAt": "2026-10-14T18:20:43.901437Z",
      "statusChangedAt": "2026-10-14T18:20:43.901437Z"
    }
  },
  "server": {
    "name": "io.github.yBookoff/thebrain",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.3.0",
    "packages": [
      {
        "version": "0.3.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "thebrain-mcp-server",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "THEBRAIN_API_KEY",
            "format": "string",
            "isSecret": true,
            "isRequired": true,
            "description": "Local API key from TheBrain: Settings > User > Local API Key"
          },
          {
            "name": "THEBRAIN_BASE_URL",
            "format": "string",
            "description": "Address of the local API. Default http://localhost:11522, then http://localhost:8001 for older TheBrain builds"
          },
          {
            "name": "THEBRAIN_DATA_DIR",
            "format": "string",
            "description": "Where semantic indexes are stored. Default ~/.thebrain-mcp"
          },
          {
            "name": "THEBRAIN_ALLOW_DESTRUCTIVE",
            "format": "string",
            "description": "Set to 1 to allow deleting thoughts. Deletion still requires human confirmation. Default 0"
          },
          {
            "name": "THEBRAIN_EMBEDDING_MODEL",
            "format": "string",
            "description": "Embedding model for semantic search. Default Xenova/multilingual-e5-small"
          },
          {
            "name": "THEBRAIN_EMBEDDING_DTYPE",
            "format": "string",
            "description": "Weight precision: fp32, fp16, q8 or q4. Default q8"
          },
          {
            "name": "THEBRAIN_TIMEOUT_MS",
            "format": "string",
            "description": "API request timeout in milliseconds. Default 30000"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/yBookoff/thebrain-mcp",
      "source": "github"
    },
    "description": "MCP server for TheBrain 15: search by meaning, graph traversal and batch writes over the local API"
  }
}

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