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ProofSlip

ai.proofslip/mcp-server ยท v0.2.3

Receipt-based verification for AI agent workflows โ€” create, verify, and poll ephemeral proof objects

Connect Runs on your machine

Terminal
claude mcp add mcp-server -e PROOFSLIP_API_KEY=<PROOFSLIP_API_KEY> -e PROOFSLIP_BASE_URL=<PROOFSLIP_BASE_URL> -- npx -y @proofslip/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@proofslip/[email protected]"
      ],
      "env": {
        "PROOFSLIP_API_KEY": "<PROOFSLIP_API_KEY>",
        "PROOFSLIP_BASE_URL": "<PROOFSLIP_BASE_URL>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@proofslip/[email protected]"
      ],
      "env": {
        "PROOFSLIP_API_KEY": "<PROOFSLIP_API_KEY>",
        "PROOFSLIP_BASE_URL": "<PROOFSLIP_BASE_URL>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@proofslip/[email protected]"
      ],
      "env": {
        "PROOFSLIP_API_KEY": "<PROOFSLIP_API_KEY>",
        "PROOFSLIP_BASE_URL": "<PROOFSLIP_BASE_URL>"
      }
    }
  }
}

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
PROOFSLIP_API_KEY
Required, secret
Your ProofSlip API key (get one free at proofslip.ai)
PROOFSLIP_BASE_URL
Optional
API base URL (defaults to https://proofslip.ai)

Details

Package@proofslip/[email protected] (NPM, stdio)
First published5 Apr 2026
Last updated5 Apr 2026
Registry nameai.proofslip/mcp-server

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