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Cryptair Mcp Server

io.github.Syronius/cryptair-mcp-server · v0.1.1

Tamper-evident attestation tools for AI agents — on-chain receipts on Hedera Hashgraph mainnet.

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add cryptair-mcp-server -e CRYPTAIR_API_KEY=<CRYPTAIR_API_KEY> -e CRYPTAIR_EMAIL=<CRYPTAIR_EMAIL> -e CRYPTAIR_BASE_URL=<CRYPTAIR_BASE_URL> -- npx -y @cryptair/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "cryptair-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cryptair/[email protected]"
      ],
      "env": {
        "CRYPTAIR_API_KEY": "<CRYPTAIR_API_KEY>",
        "CRYPTAIR_EMAIL": "<CRYPTAIR_EMAIL>",
        "CRYPTAIR_BASE_URL": "<CRYPTAIR_BASE_URL>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "cryptair-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cryptair/[email protected]"
      ],
      "env": {
        "CRYPTAIR_API_KEY": "<CRYPTAIR_API_KEY>",
        "CRYPTAIR_EMAIL": "<CRYPTAIR_EMAIL>",
        "CRYPTAIR_BASE_URL": "<CRYPTAIR_BASE_URL>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "cryptair-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cryptair/[email protected]"
      ],
      "env": {
        "CRYPTAIR_API_KEY": "<CRYPTAIR_API_KEY>",
        "CRYPTAIR_EMAIL": "<CRYPTAIR_EMAIL>",
        "CRYPTAIR_BASE_URL": "<CRYPTAIR_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
CRYPTAIR_API_KEY
Optional, secret		Optional. Pre-configured Cryptair API key. If unset, the agent can call register_agent at runtime to self-register and the key is silently stored at ~/.cryptair/credentials.json.
CRYPTAIR_EMAIL
Optional		Optional. Email used as fallback when submit_attestation auto-provisions a counterparty account.
CRYPTAIR_BASE_URL
Optional		Optional. Override the API base URL for self-hosted or staging environments. Defaults to https://www.cryptair.io.

Details

Package@cryptair/[email protected] (NPM, stdio)
First published8 May 2026
Last updated8 May 2026
Registry nameio.github.Syronius/cryptair-mcp-server

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