abi-to-mcp-guide SKILL.md skillA
abi-to-mcp-guide from nirholas/three.ws is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nirholas/three.ws/abi-to-mcp-guide@git:20260501.87cefc9Pins git:20260501.87cefc9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nirholas/three.ws
- Path
data/skills/development/abi-to-mcp-guide/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260501.87cefc9, committed May 1, 2026
- Size
- 4,360 bytes
- Repository stars
- 269
- License
- Apache-2.0
Guide to UCAI (Universal Contract AI Interface) — the ABI-to-MCP server generator. Point it at any smart contract ABI and get a working MCP server. One command, any contract, Claude speaks it. Supports Uniswap, Aave, ERC20, NFTs, all EVM chains. Security scanner included.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# UCAI — ABI-to-MCP Server Generator
UCAI (Universal Contract AI Interface) turns any smart contract ABI into a ready-to-use MCP server. One command — any contract on any EVM chain — and your AI agent can interact with it.
## The Concept
```
Smart Contract ABI (JSON)
│
▼
UCAI CLI
│
▼
MCP Server with tools for every function
│
▼
AI Agent calls contract functions naturally:
"What's the total supply of this ERC20?"
"How much can I borrow on Aave?"
```
## Quick Start
### Install
```bash
pip install abi-to-mcp
```
### Generate MCP Server
```bash
# From a verified contract on Etherscan
ucai generate 0xD74f5255D557944cf7Dd0E45FF521520002D5748 --chain arbitrum
# From a local ABI file
ucai generate ./my-contract-abi.json --chain ethereum
# From a well-known protocol
ucai generate uniswap-v3-router --chain ethereum
```
### Use with Claude Desktop
```json
{
"mcpServers": {
"my-contract": {
"command": "ucai",
"args": ["serve", "0xD74f5255D557944cf7Dd0E45FF521520002D5748", "--chain", "arbitrum"]
}
}
}
```
## How It Works
1. **ABI Parsing** — Reads contract ABI (from Etherscan, local file, or known protocol)
…Read the whole file at its exact version.
How to install
mdr add nirholas/three.ws/abi-to-mcp-guide@sha256:1cf05f386d09ef43The line at the top of this page pins the label git:20260501.87cefc9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7d3hiis3aaymmb5x)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 1, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4360 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nirholas/three.ws · 269 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7d3hiis3aaymmb5x GET https://markdownregistry.com/api/v1/resolve?ref=nirholas/three.ws/abi-to-mcp-guide GET https://markdownregistry.com/api/v1/blob/1cf05f386d09ef43435d61008c57e8aa9cc0c5685789c4ca9aa86f5e3509718a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.