io.github.cookinfun/cookin-mcp

@cookinfun/mcp

MCP server for the Cookin API: Solana and Pump.fun token intelligence for agents. Ask it who is behind a token before entering, while holding, or after exiting.

Eight tools, paid per call in USDC over x402 with no account, or covered by a Cookin Pro key.

What it answers

• Coordinated wallets. Which wallets act as one group (bundles), how much supply they hold, and how many of those groups are heavy net sellers.
• Holder quality. Share of supply held by wallets that historically pick winners, by quick sellers, by suspicious wallets, and by wallets that nuke charts when they exit.
• KOL positions. Which tracked KOL wallets hold, and how much.
• Wallet reputation. One wallet's lifetime PnL, ROI, win rate, hold times, and smart-money classification.
• Deployer history. Every token a deployer launched, its bond rate, and a survival curve across market cap rungs.
• Ratings. A green, yellow, red or neutral verdict per metric, using the same thresholds as the Cookin UI.

Install

Claude Desktop

Add this to claude_desktop_config.json:

{
  "mcpServers": {
    "cookin": {
      "command": "npx",
      "args": ["-y", "@cookinfun/mcp"],
      "env": { "SOLANA_KEY": "<base58 Solana keypair holding USDC>" }
    }
  }
}

Cursor

In .cursor/mcp.json:

{
  "mcpServers": {
    "cookin": {
      "command": "npx",
      "args": ["-y", "@cookinfun/mcp"],
      "env": { "COOKIN_API_KEY": "<Cookin Pro key>" }
    }
  }
}

Anything else that speaks MCP

SOLANA_KEY=<base58 keypair> npx -y @cookinfun/mcp

Paying

Pick one. The server prints which mode it started in, on stderr.

SOLANA_KEY is a base58-encoded 64-byte Solana keypair. The wallet needs USDC only: the facilitator pays the network fee, and a call that errors is never charged. Mint a Pro key at cookin.fun/account/api-keys.

Optional:

• COOKIN_MAX_PAYMENT caps what one call may pay. Default $0.05.
• COOKIN_BASE_URL points at another host. Default https://api.cookin.fun.

Tools

Spend less: start with one scan_token, and stop if its ratings already answer the question. fields trims a snapshot at the same price. Deployer history changes slowly, so cache it.

Remote endpoint

The same tools are served remotely at https://api.cookin.fun/mcp, with nothing to install. Point an MCP host at that URL. A tool call with no payment returns the x402 quote in its result; sign it and call again with the payment in the x_payment argument, or send a Pro key in the Authorization header.

Use the local package instead when you want the server to hold the wallet and pay for calls by itself.

Reference

• Field-by-field reference: api.cookin.fun/skill.md
• OpenAPI spec: api.cookin.fun/openapi.json
• Docs: cookin.fun/api

Development

npm install
npm test          # unit tests, no network
npm run build     # tsc to dist/
npm start         # run the server over stdio

Releasing

package.json and server.json both carry the version, and the MCP Registry rejects a mismatch. Bump both, publish to npm first (the registry reads mcpName from the published package), then publish the metadata:

npm publish --access public
mcp-publisher login github
mcp-publisher publish

MIT