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ProvenPaid

com.provenpaid/mcp ยท v0.2.0

Check an x402 endpoint before your agent pays it: challenge validity and on-chain payer evidence.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add mcp -e PROVENPAID_WALLET_PRIVATE_KEY=<PROVENPAID_WALLET_PRIVATE_KEY> -e PROVENPAID_DAILY_LIMIT=<PROVENPAID_DAILY_LIMIT> -e PROVENPAID_MAX_PRICE_USD=<PROVENPAID_MAX_PRICE_USD> -- uvx provenpaid-mcp==0.2.0
claude_desktop_config.json
{
  "mcpServers": {
    "mcp": {
      "command": "uvx",
      "args": [
        "provenpaid-mcp==0.2.0"
      ],
      "env": {
        "PROVENPAID_WALLET_PRIVATE_KEY": "<PROVENPAID_WALLET_PRIVATE_KEY>",
        "PROVENPAID_DAILY_LIMIT": "<PROVENPAID_DAILY_LIMIT>",
        "PROVENPAID_MAX_PRICE_USD": "<PROVENPAID_MAX_PRICE_USD>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "command": "uvx",
      "args": [
        "provenpaid-mcp==0.2.0"
      ],
      "env": {
        "PROVENPAID_WALLET_PRIVATE_KEY": "<PROVENPAID_WALLET_PRIVATE_KEY>",
        "PROVENPAID_DAILY_LIMIT": "<PROVENPAID_DAILY_LIMIT>",
        "PROVENPAID_MAX_PRICE_USD": "<PROVENPAID_MAX_PRICE_USD>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "provenpaid-mcp==0.2.0"
      ],
      "env": {
        "PROVENPAID_WALLET_PRIVATE_KEY": "<PROVENPAID_WALLET_PRIVATE_KEY>",
        "PROVENPAID_DAILY_LIMIT": "<PROVENPAID_DAILY_LIMIT>",
        "PROVENPAID_MAX_PRICE_USD": "<PROVENPAID_MAX_PRICE_USD>"
      }
    }
  }
}

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

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
PROVENPAID_WALLET_PRIVATE_KEY
Optional, secret		Optional. Private key of a dedicated low-balance wallet holding USDC on Base, used only to sign payments after the 10 free checks. Not needed to try it.
PROVENPAID_DAILY_LIMIT
Optional		Maximum paid checks per UTC day (default 20).
PROVENPAID_MAX_PRICE_USD
Optional		Refuse checks priced above this (default 0.01, hard ceiling 0.10).

Details

Package[email protected] (PYPI, stdio)
First published11 Oct 2026
Last updated11 Oct 2026
Registry namecom.provenpaid/mcp

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