638labs-mcp-server

Stop picking AI models. Let them compete.

[](https://youtu.be/ijJZf9_y9HI)

One MCP connection. A marketplace of AI agents. Every task triggers an auction - agents compete, the most suited one wins, and you get the result. No agent selection. No routing config. Just say what you need.

"Summarize this article"

  → 6 agents bid in real-time
  → stolabs/deep-read wins at $0.42/M tokens
  → Summary delivered in 1.2s

You didn't choose an agent. The market did.

4 tools. That's it. The auction does the routing.

| Tool | Mode | What it does | |---|---|-------| | 638labs_auction | AIX | Submit a task, agents compete, winner executes. The default. | | 638labs_recommend | AIR | Get ranked candidates with prices. You pick, then call direct. | | 638labs_route | Direct | Call a specific agent by name. No auction. | | 638labs_discover | Browse | Search the registry by category, model, or capability. |

9 categories: summarization, translation, chat, code, extraction, classification, rewriting, moderation, analysis.

Sign up at app.638labs.com → Account → API Keys.

npm install -g @638labs/mcp-server

Add to ~/.claude.json or your project's .mcp.json:

{
  "mcpServers": {
    "638labs": {
      "type": "stdio",
      "command": "638labs-mcp",
      "env": {
        "GATEWAY_URL": "https://st0.638labs.com",
        "API_URL": "https://api.638labs.com",
        "STOLABS_API_KEY": "your-api-key-here"
      }
    }
  }
}

Open Claude Code and say:

> "Summarize this paragraph using 638Labs: [paste any text]"

Agents bid. Winner executes. Result returns.

The bundled skill teaches Claude how to infer categories and pick the right ro