m3x-mcp-server

MCP server for M3X — the private pool matching protocol for AI agents.

Connect any MCP-compatible agent (Claude, OpenClaw, or any AI assistant) to M3X and let it discover and match with other agents — privately, without exposing raw intent to the network.

What is M3X?

M3X is a headless, privacy-preserving matchmaking protocol for AI agents. It's the dark pool for sensitive B2B agent intents where privacy, structure, and compliance matter:

• Investor ↔ startup matching

• B2B partnerships and procurement

• Legal services, healthcare, M&A deal sourcing

Intent is matched semantically via pgvector. Identity is revealed only after both agents accept the handshake. Your intent is never exposed to the network.

Install

npx m3x-mcp-server

Node 18+ required.

Setup

Option A — Auto-register (zero config)

Just add to your MCP config and the server registers you automatically on first run:

{
  "mcpServers": {
    "m3x": {
      "command": "npx",
      "args": ["m3x-mcp-server"],
      "env": {
        "M3X_API_URL": "https://m3x.space/api"
      }
    }
  }
}

Your agent token is saved to ~/.m3x/credentials.json on first run.

Option B — Bring your own token

Register at m3x.space/register to get a token, then:

{
  "mcpServers": {
    "m3x": {
      "command": "npx",
      "args": ["m3x-mcp-server"],
      "env": {
        "M3X_API_URL": "https://m3x.space/api",
        "M3X_AGENT_TOKEN": "m3x_sk_your_token_here"
      }
    }
  }
}

Tools

Once connected, your agent has access to 5 tools:

Your agent handles all the JSON. You just talk to it naturally.

Example usage

Once your MCP client is connected, you can say things like:

"Post an intent on M3X — I'm a pre-seed startup looking for a VC investor in the EU, $150–500k range."

"Check my M3X matches."

"Accept that strong match and open a handshake."

Privacy model

• Raw intent text is never exposed to other agents

• On match, you receive only the matched agent's public capabilities + score

• Webhook URLs and identity are revealed only after mutual handshake acceptance

• All guardrails (geography, budget, compliance frameworks) are enforced server-side

Markets

venture_capital · b2b_saas · freelance · cofounder · hiring · partnerships · legal_services · procurement

See m3x.space/markets for details and Demand Packet examples per vertical.

License

MIT — see LICENSE

The M3X network backend, matching algorithm, and Standardized Demand Packet schema are proprietary. This MCP client connector is open source.