Cerebrun MCP Client

Cerebrun (cereb.run) is a Model Context Protocol (MCP) server that provides persistent personal context management across sessions.

Quick Start

All requests require:

• api_key: Cerebrun API key (Bearer token)
• base_url: https://cereb.run/mcp

Context Layers

Layer 0 - Language, timezone, comms prefs Layer 1 - Projects, goals, pinned memories Layer 2 - Personal identity info, API and other keys Layer 3 - Encrypted vault (requires consent)

Usage

Get Context

curl -X POST
-H "Authorization: Bearer $API_KEY"
-H "Content-Type: application/json"
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_context","arguments":{"layer":0}}}'
https://cereb.run/mcp

Search Context

curl -X POST
-H "Authorization: Bearer $API_KEY"
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_context","arguments":{"query":"Rust authentication","limit":5}}}'
https://cereb.run/mcp

Push Knowledge

curl -X POST
-H "Authorization: Bearer $API_KEY"
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"push_knowledge","arguments":{"content":"Important insight","category":"learning","tags":["rust","performance"]}}}'
https://cereb.run/mcp

Chat via Gateway

curl -X POST
-H "Authorization: Bearer $API_KEY"
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"chat_with_llm","arguments":{"message":"Hello","provider":"openai","model":"gpt-4"}}}'
https://cereb.run/mcp

Tools Reference

See REFERENCES.md for complete API documentation.

Script Usage

scripts/cerebrun.py get_context --layer 0 --api-key YOUR_KEY
scripts/cerebrun.py search_context --query "project" --api-key YOUR_KEY
scripts/cerebrun.py push_knowledge --content "New idea" --category "todo" --api-key YOUR_KEY

Configuration

Store API key in environment: CEREBRUN_API_KEY or pass via --api-key