How do I connect Thebrain MCP Server to Claude?

Run `claude mcp add thebrain-mcp -- npx -y thebrain-mcp-server` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.

Is Thebrain MCP Server free?

The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can Thebrain MCP Server do?

Thebrain MCP Server documents 15 tools to the agent, including brain_activate, brain_attach_url, brain_create_thought. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

Thebrain MCP

Unclaimed

by yBookoff

MCP server for TheBrain 15 — semantic operations over the local API: meaning-based search, graph traversal, and batch writes

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01 / Choose your client

02 / Before you connect

Authentication is not specified. Check the project instructions before connecting.

Install the runtime required by the project and make it available to your client.

Project instructionsEnvironment variable names (optional)

Use names from the project instructions, separated by commas. Enter names only, never secret values.

03 / Add the configuration

Source: generated from public install instructions

claude mcp add --transport stdio 'thebrain-mcp' -- 'npx' '-y' 'thebrain-mcp-server'

Run in your terminal after replacing any placeholders.

04 / Check it in your client

Open your client’s MCP settings and confirm the server connects and lists its tools. A copied configuration does not confirm a working connection.

claudeknowledge-graphmcpmodel-context-protocolpkmsecond-brainsemantic-searchthebraintypescript

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

15 of 15 tools

Documented tools (15)

From project documentation. A server handshake does not verify each tool’s description or behavior.

brain_activate

Open a thought on the user's screen

brain_attach_url

Attach a link, without duplicates

brain_create_thought

A thought together with its note, type and tags

brain_delete_thought

Delete, with human confirmation

brain_get_thought

A thought, its graph and its note in one call

brain_index

Index status, build and refresh

brain_ingest

Write a whole structure in one call

brain_link

Connect two thoughts, with a label

brain_list

Brains, which one is open, whether the index is ready

brain_list_types_and_tags

The brain's vocabulary

brain_recent_changes

What changed, in plain language

brain_search

Search by meaning

brain_tag

Attach and detach tags

brain_traverse

Walk the graph several hops out

brain_update_thought

Name, label, type, colours

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about Thebrain MCP Server

How do I connect Thebrain MCP Server to Claude?: Run `claude mcp add thebrain-mcp -- npx -y thebrain-mcp-server` in Claude Code, or add the same command and arguments under mcpServers in Cursor's mcp.json or Claude Desktop's claude_desktop_config.json, then restart the client. The blocks above are ready to paste.
Is Thebrain MCP Server free?: The listed licence is MIT. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can Thebrain MCP Server do?: Thebrain MCP Server documents 15 tools to the agent, including brain_activate, brain_attach_url, brain_create_thought. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.