Brainstorm
@spranab
Multi-model AI brainstorming MCP server. Orchestrates debates between GPT, Gemini, DeepSeek, and Claude with structured synthesis. Includes instant quick mode, multi-model code review with verdicts, and red-team/Socratic styles. Hosted mode needs zero API keys.
Overview
What is Brainstorm?
Brainstorm is an MCP server that orchestrates debates between multiple AI models—GPT, Gemini, DeepSeek, Claude—to produce structured synthesis of their perspectives. It is for developers who want more reliable, multi-model insights rather than trusting a single AI.
How to use Brainstorm?
Install with npx -y brainstorm-mcp or npm install -g brainstorm-mcp, then add the server to your .mcp.json (Claude Code) or claude_desktop_config.json (Claude Desktop). Optionally set API keys via environment variables or a config file; hosted mode requires no API keys. Invoke tools such as brainstorm, brainstorm_quick, or brainstorm_review by describing your request to Claude.
Key features of Brainstorm
- Hosted mode with zero API keys needed
- API mode with parallel execution across providers
- Instant multi-model perspectives in under 10 seconds
- Multi-model code review with severity ratings and verdicts
- Three debate styles: freeform, red-team, Socratic
- 3-bullet synthesis verdicts: Recommendation, Key Tradeoffs, Strongest Disagreement
- Multi-round debates where models critique each other’s responses
Use cases of Brainstorm
- Compare technologies (e.g., Redis vs PostgreSQL for session storage)
- Review code diffs for security or correctness issues
- Decide architectural approaches (e.g., GraphQL vs REST)
- Brainstorm design ideas with multiple AI perspectives
FAQ from Brainstorm
What runtime or dependencies are required?
Node.js and npm. The server is distributed as an npm package and runs via npx or global install.
Does hosted mode need API keys?
No. Hosted mode uses models available in your environment (Claude Opus/Sonnet/Haiku) via sub-agents; no external API keys are required.
Which AI models are supported?
In API mode: OpenAI, Gemini, DeepSeek, Groq, Mistral, Together, and Ollama. Hosted mode supports Claude models (Opus, Sonnet, Haiku).
Where does my data go?
In API mode, prompts are sent from your machine to the model providers you configure using your own API keys. Hosted mode makes no external API calls. Sessions are stored in‑memory only with a 10‑minute TTL; no data is written to disk unless you explicitly save results.
How does Brainstorm handle errors?
If one model fails (rate limit, timeout), the tool continues with the remaining models and reports which ones failed. Sessions expire after 10 minutes; a clear error message tells you to start a new session.
