hyperD MCP Server

Exposes 23 hyperD x402 API tools (16 paid endpoints + bundle + 3 watch + 3 free meta) from api.hyperd.ai — drop into Claude Desktop, Cursor, Cline, Zed, or any MCP-compatible client.

What it does

Each tool call:

1. Sends a request to the corresponding api.hyperd.ai endpoint
2. Receives an HTTP 402 with payment requirements
3. Signs an EIP-3009 USDC transfer authorization with your wallet
4. Retries with the payment header
5. Returns the data to the AI assistant

You pay $0.005–$0.10 in USDC on Base per call. No subscription. No accounts.

What you need

• A wallet with at least $0.30 USDC on Base (the seed cost for trying every tool once is ~$0.62)
• The wallet's private key OR 12-word BIP-39 mnemonic
• Node 20+ installed

Install + configure

Step 1 — Generate or use an existing wallet

For testing, use a fresh wallet, not your main one. A simple way:

node -e "const {generatePrivateKey, privateKeyToAccount} = require('viem/accounts'); const pk = generatePrivateKey(); console.log('Address:', privateKeyToAccount(pk).address); console.log('Private key:', pk);"

Send ~$1 of USDC on Base to the printed address.

Step 2 — Claude Desktop

Edit your Claude Desktop config (location: macOS ~/Library/Application Support/Claude/claude_desktop_config.json, Windows %APPDATA%\Claude\claude_desktop_config.json):

{
  "mcpServers": {
    "hyperd": {
      "command": "npx",
      "args": ["-y", "hyperd-mcp"],
      "env": {
        "HYPERD_WALLET_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY_HERE"
      }
    }
  }
}

Restart Claude Desktop. The 23 hyperD tools appear in the conversation tool list.

Step 3 — Try it

Ask Claude in any conversation:

"What's the security score for USDC on Base? Use the hyperd.token.security tool."

Claude calls our endpoint, pays $0.05 from your wallet, returns the result. The whole flow takes ~2 seconds.

Cursor / Cline / Zed

Each MCP-compatible client has a similar config file. Same pattern: name the server hyperd, command is npx -y hyperd-mcp, set HYPERD_WALLET_PRIVATE_KEY env var.

For the full MCP client list and per-client config docs see https://modelcontextprotocol.io/clients.

Local-development install (without npm publish)

If you want to run from source instead of npx:

git clone https://github.com/hyperd-ai/hyperd-mcp.git
cd hyperd-mcp
npm install
npm run build

Then in your Claude Desktop config, point at the local build:

{
  "mcpServers": {
    "hyperd": {
      "command": "node",
      "args": ["/full/path/to/hyperd-mcp/dist/server.js"],
      "env": {
        "HYPERD_WALLET_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY_HERE"
      }
    }
  }
}

Available tools

Full HTTP API docs: https://api.hyperd.ai/api/discover

Security

• Use a hot wallet, not your primary. The MCP server has the private key in process memory while it runs.
• Cap your spend by transferring only what you want to use. There's no built-in spending limit; the wallet's balance IS the limit.
• Don't commit your private key. The Claude Desktop config file is local; don't share it.

Configuration via mnemonic instead of private key

If you have a 12 or 24-word BIP-39 mnemonic instead of a raw key:

"env": {
  "HYPERD_WALLET_MNEMONIC": "word1 word2 ... word12"
}

Derives at the standard Ethereum path m/44'/60'/0'/0/0.

Optional env vars

• HYPERD_API_BASE — default https://api.hyperd.ai. Override for testnet or self-hosted.
• HYPERD_BASE_RPC — default public Base RPC. Override for higher rate limits.

License

MIT — same as the parent repo.