Check quotes from an MCP client

Last updated: 2026-10-17

quoteproof-mcp is an MCP server (stdio) with one tool per route. It needs Node.js 20.3 or later and no install step: npx runs it.

• Tool for a single quote: attestpage_verify_quote (route POST /v1/verify/quote), US$0.01 per call.
• Tool for 1 to 20 quotes on one page: attestpage_verify_quotes (route POST /v1/verify/quotes), US$0.02 per call.
• Free trial: 10 calls per IP address a day, no key needed.

Config

Most MCP clients take a block like this:

{
  "mcpServers": {
    "quoteproof": {
      "command": "npx",
      "args": ["-y", "https://vehcdj664efetfrsolne5umanq.srv.us/dl/quoteproof-mcp-0.1.48.tgz"],
      "env": { "QUOTEPROOF_URL": "https://vehcdj664efetfrsolne5umanq.srv.us" }
    }
  }
}

With no key the server uses the free trial. Once the trial is used up, the tool returns the price and stops.

Paying

Add a Base wallet key to pay in USDC. The key stays in the MCP server's process.

"env": {
  "QUOTEPROOF_URL": "https://vehcdj664efetfrsolne5umanq.srv.us",
  "QUOTEPROOF_X402_KEY": "0x...",
  "QUOTEPROOF_NETWORKS": "eip155:8453",
  "QUOTEPROOF_MAX_USD": "0.02"
}

• QUOTEPROOF_NETWORKS lists the networks the server will pay on (Base, eip155:8453).
• QUOTEPROOF_MAX_USD caps the price of one call. An offer above the cap is refused locally and nothing is signed.

Remote endpoint

No local process: point the client at https://vehcdj664efetfrsolne5umanq.srv.us/mcp (streamable HTTP).

{
  "mcpServers": {
    "quoteproof": { "type": "http", "url": "https://vehcdj664efetfrsolne5umanq.srv.us/mcp" }
  }
}

The remote endpoint uses the free trial, then returns the payment requirements. To pay over HTTP, put an x402 payment payload in _meta["x402/payment"] of the tool call. See MCP server.

Terms

Pay per call, no account. See Payments, Limits and the Terms.