paidfor

Connect it to your AI

Claude Code

claude mcp add --transport http paidfor https://mcp.paidfor.dev/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://mcp.paidfor.dev/mcp

claude mcp add paidfor -- npx -y @paidfor/mcp@0.4.0

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "paidfor": {
      "url": "https://mcp.paidfor.dev/mcp"
    }
  }
}

Tools it offers

4 tools, as the server itself reported during our check on Oct 31, 2026.

• check_x402_sellerCall this before any x402 payment, before retrying a request that answered HTTP 402, or whenever the user is about to buy an API call with USDC on Base or names an API they intend to pay per call. Returns a verdict (avoi
• list_reliable_sellersCall this when choosing among sellers for a task, or when the user asks for a safe or reliable API. Returns sellers with zero failures across at least 30 paid calls, most-called first. For each: domain, category, paid-ca
• recent_changesCall this when the user asks what changed, or before relying on a verdict older than a day. Returns recent changes, newest first: verdict changes, new failures by type, moved quotes, changed pay-to addresses, sellers add
• report_x402_paymentAfter your agent pays an x402 seller with any wallet, report what came back. Needs the resource URL, the settlement transaction hash and the outcome. Free, no account, no key; the report counts only with on-chain proof.

Questions