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abi-to-mcp-guide

Generate an MCP server from a smart contract ABI with read/write tool classification.

5|Updated May 2, 2026
Search Tags:#security scanning#mcp server#llm tools#etherscan#evm#decentralized finance#smart contract abi
One-click install
npx skills add https://github.com/nirholas/three-ui --skill abi-to-mcp-guide
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: abi-to-mcp-guide
Source: https://github.com/nirholas/three-ui/tree/main/data/skills/development/abi-to-mcp-guide
Command: npx skills add https://github.com/nirholas/three-ui --skill abi-to-mcp-guide

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It solves the time-consuming work of building an MCP server that lets an AI safely and accurately call smart-contract functions from an ABI.

Core Features & Use Cases

  • ABI-to-MCP Server Generation: Converts any verified contract ABI into an MCP server with one tool per function.
  • Read/Write Tool Split: Automatically maps view/pure functions to read-only tools and flags state-changing functions as write actions that require signing.
  • Schema + Documentation Generation: Produces JSON-schema-like parameter definitions from Solidity types and auto-generates tool descriptions from signatures and NatSpec.
  • Security Scanner: Identifies common risk patterns like reentrancy, unlimited approvals, admin/owner functions, proxy upgrades, and self-destruct capability.
  • Use Case: Generate an MCP server for an ERC-20 on Arbitrum so an AI agent can answer questions like token balances, allowances, and total supply by calling the contract tools.

Quick Start

Use UCAI to generate an MCP server for a contract address on a chosen chain, then configure the resulting MCP server in Claude Desktop so your agent can call the contract’s functions through tools.

Frequently Asked Questions about abi-to-mcp-guide

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate an MCP server from a smart contract ABI?▼

To generate an MCP server from a smart contract ABI, the system parses contract metadata and maps Solidity types to JSON schema definitions. It creates one callable tool per function, enabling AI agents to interact directly with ERC-20 tokens or multi-chain EVM protocols.

How does the ABI to MCP tool split read and write functions?▼

The ABI to MCP tool automatically maps view and pure functions to read-only tools, while flagging state-changing functions as write actions. Write actions require signing, ensuring AI agents safely handle token transfers and DeFi protocol interactions without unauthorized state modifications.

Can I use this to create MCP tools for multi-chain EVM contracts?▼

Yes, you can create MCP tools for multi-chain EVM contracts. The generation process applies to various decentralized finance scenarios across different EVM networks, allowing you to convert verified contract ABIs from platforms like Arbitrum into functional MCP servers for AI agents.

What security scanning features are included when building an MCP server from an ABI?▼

The security scanning feature identifies common smart contract risk patterns during MCP server generation. It detects potential reentrancy vulnerabilities, unlimited approvals, admin or owner functions, proxy upgrades, and self-destruct capabilities before AI agents interact with the contract.

Does the MCP server generation support NatSpec documentation for AI tools?▼

Yes, MCP server generation supports NatSpec documentation by auto-generating tool descriptions from function signatures and NatSpec comments. It produces JSON-schema-like parameter definitions from Solidity types, ensuring AI agents receive clear instructions for calling contract methods.

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