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mcp/harbor
Cursor

three.ws Agent Payments for Cursor

io.github.nirholas/agentcore-payments-mcp

Governed x402 payment sessions: pay any endpoint with budget, allowlist & per-tx caps, no key.

client:Cursor transport:stdio runtime:npm

Install three.ws Agent Payments in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "agentcore-payments-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/agentcore-payments-mcp"
      ],
      "env": {
        "THREE_WS_SESSION": "<THREE_WS_SESSION>",
        "PAYMENT_SESSION_TOKEN": "<PAYMENT_SESSION_TOKEN>",
        "THREE_WS_BASE": "<THREE_WS_BASE>",
        "THREE_WS_TIMEOUT_MS": "<THREE_WS_TIMEOUT_MS>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

three.ws Agent Payments in other clients

three.ws Agent Payments MCP server