MCP overview

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Product Brain exposes the Chain over MCP. You use natural language in your host; your agent calls tools like orient and entries.

Hosted URL

https://mcp.productbrain.io/mcp

Authenticate with:

Authorization: Bearer pb_sk_your_workspace_key

Details: MCP authentication.

Philosophy

Compound tools with action fields keep schemas small for hosts with tool limits.

Minimal Cursor config

{
  "mcpServers": {
    "productbrain": {
      "url": "https://mcp.productbrain.io/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Knowledge tools
Session tools
Cursor

CLI Reference

MCP authentication

Reference overview

CLI (pb)

MCP server

REST API

Reference

Troubleshooting

Hosted URL

Philosophy

Minimal Cursor config

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Hosted URL

Philosophy

Minimal Cursor config

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