A minimal USDC payment contract on Arc Testnet with on-chain memos and programmable receipts.

Machina Bridge Swap: Uniswap V2 DEX + Circle Bridge Kit integration for Sepolia, Arc testnet, Base Sepolia, Optimism Seoplia, Arbitrum Sepolia and Solana Devnet USDC transfers

Complete DeFi ecosystem on Arc testnet MVP: collateralized lending, constant product AMMs. Built with Solidity + Foundry.

Arc testnet automate, arc bot, arc network onchain

USDC tip jar platform live on Arc Testnet with creator pages, wallet connect, smart contract tipping, and ArcScan receipt.

Public infrastructure for AI agents on Agent Network — 8 services on global ANS: Soul NFT identity (ERC-721 + ERC-6551 TBA), CourtEscrow on-chain enforcement, multi-juror court via anet brain, and x402 rail for REAL USDC pay-per-call. End-to-end verified on Arc Testnet. #AgentNetwork

On-chain prediction market on Arc Testnet. Bet MTK tokens on real-world outcomes — fully transparent & verifiable.

Auto faucet, mint nft, deploy contract, token.

AutonomIQ is a Data-as-a-Service escrow platform where AI agents deliver verified data and clients release USDC payments on Arc testnet.

Pay a hundred wallets in one transaction. A tiny CLI + verified contract for USDC batch payouts on Arc testnet.

Fund the question. Reward the evidence. An AI research funding protocol for curated sources, contributor payouts, and verifiable receipts.

License an event photo, walk away with proof you own the rights. USDC in, a proof-of-purchase NFT out.

AI marketing agency on Arc Testnet — sub-cent USDC micropayments via Circle Gateway × x402, Hermes orchestrator with Gemini Function Calling, ERC-8004 trust layer. Hackathon: Agent-to-Agent Payment Loop.

Arc Testnet stablecoin invoicing and onchain reconciliation with USDC and EURC

Cut a single frame out of a video and mint it. Fans collect editions in USDC that goes straight to the editor.

Policy-controlled USDC payment vaults for autonomous AI agents on Arc testnet.

Prediction-market-settled payments for probabilistic AI services on Arc. The settlement layer existing payment protocols don't cover. Built on Cadence.

Reference flow for policy-controlled agent decisions, agent-wallet execution, Arc Testnet USDC settlement, and XPAYR reconciliation.

Live network dashboard for Arc Testnet (Circle's USDC-gas L1) — real-time blocks, dollar-denominated fees, balance lookup. Static, no backend.

Arc-native bounty marketplace demo on Arc Testnet with agent identity, escrow, discussion, and reputation.