PluginBench
MCP Server

UCAI MCP Server

io.github.nirholas/abi-to-mcp

RepositoryRegistry

What is the UCAI MCP server?

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

How to install UCAI

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • WEB3_PROVIDER_URL

    Ethereum JSON-RPC endpoint URL

  • ETHERSCAN_API_KEY
    secret

    Etherscan API key for fetching verified contract ABIs

  • PRIVATE_KEY
    secret

    Private key for signing transactions (write operations)

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "abi-to-mcp": {
      "command": "uvx",
      "args": [
        "abi-to-mcp"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<YOUR_WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<YOUR_ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<YOUR_PRIVATE_KEY>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "abi-to-mcp": {
      "command": "uvx",
      "args": [
        "abi-to-mcp"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<YOUR_WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<YOUR_ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<YOUR_PRIVATE_KEY>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "abi-to-mcp": {
      "command": "uvx",
      "args": [
        "abi-to-mcp"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<YOUR_WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<YOUR_ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<YOUR_PRIVATE_KEY>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "abi-to-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "abi-to-mcp"
      ],
      "env": {
        "WEB3_PROVIDER_URL": "<YOUR_WEB3_PROVIDER_URL>",
        "ETHERSCAN_API_KEY": "<YOUR_ETHERSCAN_API_KEY>",
        "PRIVATE_KEY": "<YOUR_PRIVATE_KEY>"
      }
    }
  }
}
Claude Code
claude mcp add abi-to-mcp --env WEB3_PROVIDER_URL=<YOUR_WEB3_PROVIDER_URL> --env ETHERSCAN_API_KEY=<YOUR_ETHERSCAN_API_KEY> --env PRIVATE_KEY=<YOUR_PRIVATE_KEY> -- uvx abi-to-mcp

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