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Lists the public brains you can query: graph-based knowledge bases such as indexed library and framework documentation. Returns metadata only, no content. Use this first to find the right brain before searching it with query_brain.

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Input

ParameterTypeRequiredDescription
limitnumberNoMax results to return. Default 50, max 100.

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Example

Prompt:
“What public brains can I query?”
Tool call: 
{}
Response: 
1 public brain available:

- Name: Supabase Docs
- ID: fa8d5392-fc77-4eb4-8a4c-64e0005c56b6
- Source: https://supabase.com/docs/
- Description: Brain for entire `supabase/docs/`
- Overview: Supabase is a PostgreSQL database as a service that provides additional features such as authentication and file storage. It is designed to simplify the process of building serverless applications. The platform offers a range of features including real-time data synchronization, scalable storage, and secure authentication. It also provides guides and tutorials for getting started with Supabase, including quickstart guides and step-by-step tutorials for popular frameworks. Supabase also offers a range of integrations with third-party services, including Vercel and AWS Marketplace. The platform is designed to be flexible and scalable, making it suitable for a wide range of applications and use cases.
- Tokens: 1516775
- Nodes: 28201
- Last updated: 2026-06-08
Each entry includes the brain ID you pass to the other brain tools. Fields that aren’t set (source, tokens, pages) are omitted.

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When to use it

  • The agent needs context about a library or topic and you want it to pick the right brain first.
  • You want to see what knowledge bases are available before querying.
  • You have a brain ID from a previous result and want to confirm its details.

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See also