UCAI MCP Server
by nirholasio.github.nirholas/abi-to-mcpv0.1.0
UCAI — The ABI-to-MCP Server Generator. Convert any smart contract ABI into an AI-ready MCP server.
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Active25d ago
Install UCAI MCP server
Install in Claude Code
claude mcp add abi-to -e ETHERSCAN_API_KEY='<etherscan-api-key>' -e PRIVATE_KEY='<private-key>' -- uvx abi-to-mcpInstall in Cursor
{
"mcpServers": {
"abi-to": {
"command": "uvx",
"args": [
"abi-to-mcp"
],
"env": {
"ETHERSCAN_API_KEY": "<etherscan-api-key>",
"PRIVATE_KEY": "<private-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"abi-to": {
"command": "uvx",
"args": [
"abi-to-mcp"
],
"env": {
"ETHERSCAN_API_KEY": "<etherscan-api-key>",
"PRIVATE_KEY": "<private-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"abi-to": {
"type": "stdio",
"command": "uvx",
"args": [
"abi-to-mcp"
],
"env": {
"ETHERSCAN_API_KEY": "<etherscan-api-key>",
"PRIVATE_KEY": "<private-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"abi-to": {
"command": "uvx",
"args": [
"abi-to-mcp"
],
"env": {
"ETHERSCAN_API_KEY": "<etherscan-api-key>",
"PRIVATE_KEY": "<private-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| WEB3_PROVIDER_URL | — | — | Ethereum JSON-RPC endpoint URL |
| ETHERSCAN_API_KEY | — | yes | Etherscan API key for fetching verified contract ABIs |
| PRIVATE_KEY | — | yes | Private key for signing transactions (write operations) |
Freshness
Active — last maintenance signal 25d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-15 · 25d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-01-05 · 9mo ago · official registry · v0.1.0
FAQ
›How do I install the UCAI MCP server in Claude Code?
Run: claude mcp add abi-to -e ETHERSCAN_API_KEY='<etherscan-api-key>' -e PRIVATE_KEY='<private-key>' -- uvx abi-to-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does UCAI require an API key?
Yes. It expects ETHERSCAN_API_KEY, PRIVATE_KEY, of which 2 are secrets.
›Can I use UCAI as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is UCAI in the official MCP registry?
Yes, as io.github.nirholas/abi-to-mcp.