NestDaddy

PayCheck

io.github.toolweather/paycheck · v1.0.0

Score merchant domain, https URL, or 0x wallet trust before an agent pays. Does not send payments.

Connect Remote server

Terminal
claude mcp add --transport http paycheck https://paycheck.toolweather.workers.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "paycheck": {
      "url": "https://paycheck.toolweather.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "paycheck": {
      "type": "http",
      "url": "https://paycheck.toolweather.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://paycheck.toolweather.workers.dev/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 3 found in our last check

  • check_merchant

    Decide whether an autonomous agent should pay a merchant, host, or wallet. PayCheck returns a deterministic trust score for one target. It does not send money, does not sign transactions, and does not hold wallet keys. Use this immediately before a payment, a checkout redirect,…

  • get_quota

    Show how many free PayCheck merchant checks the current caller has left for the current UTC day. Use this before a batch of check_merchant calls, or after an HTTP 402, to read the remaining free allowance and when it resets. Do not use this to score a payee. It accepts no target…

  • get_api_key

    Mint one free PayCheck API key. The key looks like pc_live_ followed by hex and raises the merchant-check allowance from 100 to 1,000 per UTC day. Use this once when you set up a long-running agent, then store the key and pass it on later check_merchant or get_quota calls. The p…

Headers

NameDescription
Authorization
Optional, secret
Optional Bearer pc_live_… free key (POST https://paycheck.toolweather.workers.dev/v1/keys) for 1,000 free checks/day; 100/day without one. After the cap, x402 USDC on Base.

Details

Endpointhttps://paycheck.toolweather.workers.dev/mcp (Streamable HTTP)
First published15 Oct 2026
Last updated15 Oct 2026
Registry nameio.github.toolweather/paycheck

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