Brainstorm

Name: Brainstorm
Author: spranab

@spranab

About Brainstorm

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.

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "brainstorm": {
      "command": "npx",
      "args": [
        "-y",
        "brainstorm-mcp"
      ],
      "env": {
        "OPENAI_API_KEY": "<YOUR_KEY>",
        "GEMINI_API_KEY": "<YOUR_KEY>",
        "DEEPSEEK_API_KEY": "<YOUR_KEY>"
      }
    }
  }
}

Tools

Multi-round debate between AI models (API or hosted mode)

Instant multi-model perspectives — parallel, no rounds

Multi-model code review with findings, severity, verdict

Submit Claude's response in an interactive session

Submit model responses in a hosted session

Show configured providers and API key status

Add a new AI provider at runtime

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.

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