UCAI

io.github.nirholas/abi-to-mcp · v0.1.0

UCAI — The ABI-to-MCP Server Generator. Convert any smart contract ABI into an AI-ready MCP server.

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add abi-to-mcp -e WEB3_PROVIDER_URL=<WEB3_PROVIDER_URL> -e ETHERSCAN_API_KEY=<ETHERSCAN_API_KEY> -e PRIVATE_KEY=<PRIVATE_KEY> -- uvx abi-to-mcp==0.1.0

claude_desktop_config.json

{
  "mcpServers": {
    "abi-to-mcp": {
      "command": "uvx",
      "args": [
        "abi-to-mcp==0.1.0"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<PRIVATE_KEY>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "abi-to-mcp": {
      "command": "uvx",
      "args": [
        "abi-to-mcp==0.1.0"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<PRIVATE_KEY>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "abi-to-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "abi-to-mcp==0.1.0"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<PRIVATE_KEY>"
      }
    }
  }
}

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

Name	Description
`WEB3_PROVIDER_URL` Optional	Ethereum JSON-RPC endpoint URL
`ETHERSCAN_API_KEY` Optional, secret	Etherscan API key for fetching verified contract ABIs
`PRIVATE_KEY` Optional, secret	Private key for signing transactions (write operations)

Details

Package	`[email protected]` (PYPI, stdio)
First published	5 Jan 2026
Last updated	5 Jan 2026
Registry name	`io.github.nirholas/abi-to-mcp`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

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