UCAI — The ABI-to-MCP Server Generator. Convert any smart contract ABI into an AI-ready MCP server.
To add UCAI to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 3 environment variables, listed below.
Install
uvx abi-to-mcp@0.1.0Environment variables
WEB3_PROVIDER_URLSet in your MCP configETHERSCAN_API_KEYSet in your MCP configPRIVATE_KEYSet in your MCP configInstall with your client
claude mcp add ucai --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@0.1.0
Run this in a terminal to add the server to Claude Code.
What this does
UCAI exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
WEB3_PROVIDER_URL ETHERSCAN_API_KEY PRIVATE_KEY
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install UCAI?
Run the Claude Code command in the install section to add UCAI to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with UCAI?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to UCAI as well.
Does UCAI need an API key?
Yes. Before it can run, set these environment variables: WEB3_PROVIDER_URL, ETHERSCAN_API_KEY, PRIVATE_KEY. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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