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Universal Contract AI Interface (UCAI)

ABI-to-MCP generator: turns any smart contract ABI into an MCP server agents can call.

  • Sato Score86
  • ChainsMultichain
ActiveUnverifiedActive · 30d ago

Universal Contract AI Interface (UCAI) is an open-source developer tool, with last code activity on 2026-09-15 (Active). Sato Score 86/100 (how open, active and verifiable it is, not a safety grade), as of 2026-10-14. How the score works →

See how to install Universal Contract AI Interface (UCAI) →

Last commit Sep 15, 2026 · ★ 37

Listed from github.com/nirholas/UCAI on 2026-07-13. Install: reproduced by Sato Hub on 2026-07-21. Evidence →

Website ↗Docs ↗GitHub ↗Demo ↗

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Overview

UCAI is an open-source generator that converts a smart contract's ABI into an MCP server, covering DeFi protocols, ERC-20 tokens, NFTs, and arbitrary contracts. Instead of hand-writing MCP tools per contract, an agent builder points UCAI at an ABI and gets contract read/write tools an agent can call. Useful for quickly exposing bespoke or long-tail contracts to an agent stack; generated write tools still need the same key-handling care as any transaction path.

Sato Score

86/100· High

How open, active & verifiable — not a safety or returns grade.

Maintenance & liveness
35/35
Code transparency
18/20
Interface verifiability
8/10
Docs & demo
10/10
Listing transparency & provenance
12/15
Independent verification
3/10

Deploy path reproduced — install verified in an isolated container (proves installability, not runtime safety).

View verification & embed badge →History →How the Sato Score works

Sato Check

v0.1.0 · as of 2026-09-29
Does it take your key?
Reads a key
Does your key leave?
Not yet run
Can it move funds on its own?
Unknown
Full profile, evidence and limits →

A profile describes what we read and ran, with dates. It is not a safety rating, an audit or an endorsement, and "not found" is not "not there".

Evidence — listed vs checked · what the words mean

Listed from github.com/nirholas/UCAI on 2026-07-13. Install: reproduced by Sato Hub on 2026-07-21.

ClaimValueEvidenceSourceChecked
Chains supportedMultichainself-reporteddocs.ucai.techas of 2026-10-14
Verification statusUnverified — not independently reviewedself-reportedgithub.com/nirholas/UCAIas of 2026-10-14
Recent activitylast commit 2026-09-15observedgithub.com/nirholas/UCAI2026-10-14
Install worksreproduced — install and entry both completedshows the install path works as written; not a statement about runtime behaviour✓ reproducedgithub.com/nirholas/UCAI2026-07-21
Website answersanswered (HTTP 200)observedgithub.com/nirholas/UCAI2026-10-14
Daily check record90 of 90 daily checks since 2026-07-16 succeededa success rate of our checks, not uptime; the source is this listing's own historyobserved—2026-10-13
Takes your keyreads private-key materialtracedsatohub.ai2026-09-29
Key leaves the machinenot yet run with planted test keysthe sandbox lane has not run on this versionobservedsatohub.ainot dated
Moves funds on its ownunknown — could not read what it exposestracedsatohub.ai2026-09-29
Creator profilehttps://github.com/nirholasconfidence 0.85self-reportedgithub.com/nirholas/UCAIas of 2026-07-14
Works withClaudeconfidence 0.60self-reportedgithub.com/nirholas/UCAIas of 2026-07-14
Docshttps://docs.ucai.techconfidence 0.85self-reportedgithub.com/nirholas/UCAIas of 2026-07-14
Demohttps://mcp.ucai.techconfidence 0.85self-reportedgithub.com/nirholas/UCAIas of 2026-07-14
Demo availableyesconfidence 0.85self-reportedgithub.com/nirholas/UCAIas of 2026-07-14
Sato Score86/100 (High)how open, active and verifiable — not a safety or quality gradecomputedsatohub.ai2026-10-14

Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.

Install — reproduced in a container Jul 21, 2026

Runtime: Python 3.10+

pip install abi-to-mcp
abi-to-mcp generate <source> [options] — e.g. abi-to-mcp generate 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D -o ~/uniswap-server; generated server needs cd ~/uniswap-server && pip install -r requirements.txt

You supply: RPC_URL (required, Web3 RPC endpoint for the generated server), PRIVATE_KEY (required only for write/transaction tools — risk: controls funds), ETHERSCAN_API_KEY (optional, for fetching ABIs)

MCP invocation: python server.py (stdio) — runs the generated server, not UCAI itself

Read from the project’s own docs as of 2026-07-21. What a deploy spec is →

Observed record — 90 daily checks since 2026-07-17

100%of 90 checks since 2026-07-17 succeeded
Currently responding for 90 days
Succeeded
90
Failed
0
Their error
0
Unattributed
0

This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden. 46 of these checks predate 2026-09-01, when the probe counted a bot-block (HTTP 403) as a failure and recorded no reason for any failure. Every one of them passed, so the rate covers them too.

Last 30 days — to 2026-10-14, one point per UTC day

Share of OUR checks that succeeded
100%
7-day rolling; unattributable days are gaps · 30/30 days
Tools listed
fewer than 2 points—
from the server's own tools/list · 0/30 days
Sato Score
86
as snapshotted that day · 29/30 days

A gap is a day we have no attributable observation — never a zero. Thirty points is the whole shape the free layer carries; the daily rows behind it stay in the snapshot series.

Details

Chains
Multichain
Agent types
Developer Tool, MCP Server
Open source
Yes
Works with
Claude
Last checked
2026-10-14

Marketplace Signals

  • ▸ Demo available

Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.

#mcp#abi#codegen#smart-contracts#evm

Where Universal Contract AI Interface (UCAI) fits

Trading

Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets

See something inaccurate or outdated?Submit a correction →

Listing History

Recorded changes to Universal Contract AI Interface (UCAI)'s listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.

  1. Jul 21, 2026
    Verified: deploy spec
  2. Jul 20, 2026
    Sato Score tier: Medium → High
    Score 65 → 73.
  3. Jul 17, 2026
    Sato Hub began tracking this listing
  4. Jul 14, 2026
    Enriched: supported integrations
  5. Jul 14, 2026
    Auto-enriched: creator profile url, docs url, has demo, demo url
  6. Jul 14, 2026
    Listed on Sato Hub

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Appears in

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Reference

QuestionsShowHide

Questions people ask about Universal Contract AI Interface (UCAI)

Is Universal Contract AI Interface (UCAI) open source?
Yes. Universal Contract AI Interface (UCAI) is open source under the Proprietary (README states 'All rights reserved') license; the repository is https://github.com/nirholas/UCAI. Checked as of 2026-10-14.
Which chains does Universal Contract AI Interface (UCAI) support?
Universal Contract AI Interface (UCAI) lists support for Multichain as of 2026-10-14.
Is Universal Contract AI Interface (UCAI) still maintained?
The most recent code activity Sato Hub observed was on 2026-09-15 (last commit 2026-09-15), which Sato Hub labels "Active". Posts on X are not counted as maintenance. Activity is a recency signal, not a quality judgment.
How do I install or run Universal Contract AI Interface (UCAI)?
Python 3.10+. Install: pip install abi-to-mcp. Entry: abi-to-mcp generate <source> [options] — e.g. abi-to-mcp generate 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D -o ~/uniswap-server; generated server needs cd ~/uniswap-server && pip install -r requirements.txt. Sato Hub reproduced this install in a container on 2026-07-21.
Is Universal Contract AI Interface (UCAI) verified on Sato Hub?
Sato Hub holds one earned check for Universal Contract AI Interface (UCAI): Deploy path reproduced — install verified in an isolated container (proves installability, not runtime safety). Its Sato Score is 86 of 100, a measure of how open, active and verifiable the project is, not a safety, quality or returns grade.
Cite this pageShowHide

Cite this page

Sato Hub. "Universal Contract AI Interface (UCAI) — Sato Hub." Sato Hub, updated 2026-10-14, accessed 2026-10-15. https://satohub.ai/resources/ucai

Data last refreshed 2026-10-14; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.

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