UACP

UACP

Flagship

Universal Agent Communication Protocol

Agent-to-agent communication with native payment semantics on EVM. Implements Google A2A + Coinbase X402.

In progress
#Multi-Agent RPC#EVM Smart Contracts#HTTP 402 Payments#Zod Validator SDK
January 2025 - Present

About the Project

UACP is a production-ready protocol for secure, interoperable agent-to-agent communication with native payment semantics. It enables safe multi-agent orchestration for autonomous workflows instead of forcing every interaction through a human approval loop. Built for Somnia AI Hackathon 2025 (DeFi Agents Track).

Problem Statement

DeFi automation suffers from fragmented bot infrastructure, unsafe execution without risk checks, lack of payment standards for autonomous agents, and poor developer experience.

Key Features

1

A2A-compliant message schema with DID-based identities

2

Declarative workflows with retry/circuit-breaker logic

3

Native payment semantics (HTTP 402 / X402) for autonomous payments

4

Type-Safe SDK with Zod validation

Tech Stack

TypeScript
Solidity
Express
Zod
EVM
ethers.js
Somnia Blockchain

Highlights

Built for Somnia AI Hackathon 2025, implementing Google A2A and Coinbase X402 standards
Adds retry and circuit-breaker semantics for unreliable agent networks
On-chain registry on Somnia mainnet