Code to borrow as much { WETH, USDC, DAI, USDT } as you want from Aave and make an arbitrage transaction with Uniswap up to V3
✨ Deen Bridge 🕌 — Next.js platform for authentic Islamic education (courses, books, spaces, mentorship) with a cited AI assistant and non-custodial Stellar/USDC payments.
Public adapters and discovery catalog for Triptych OS (Agent OS): agent frameworks, MCP/A2A/x402 protocols, workflows, wallets, SDKs, and examples for execute-first routing, governed handoffs, and receipt-aware agent commerce.
agent402.tools: 500+ pay-per-call tools, metered models and finished reports for AI agents, paid per call in USDC over x402 and MPP or by card. Open source, self-hostable, MCP-native. The applied layer of agentic finance.
✨ Learn how to build your first dapp With Ethers.js
Code to borrow as much { WETH, USDC, DAI, USDT } as you want from Aave and make an arbitrage transaction.
Virtual MasterCards for AI agents - pay with USDC via x402 on Stellar
AI-powered crypto trading MCP server with technical analysis, sentiment, and execution tools
Give an AI agent a real Solana wallet without giving it your money. An MCP server for spending allowances the SPL Token program enforces on-chain, with guardrails, x402 payments, and revocable custody.
Non-custodial Stellar/USDC payments API for DeenBridge — SEP-1/7/10/29, path payments, multi-asset trustlines, and Horizon reconciliation on a Node/Express + MongoDB core.
Autonomous prediction-market oracle on Arc. AI agents discover Cronus over a remote MCP and pay gas-free x402 micro-payments (0.001 USDC via Circle Gateway). Keyless on-chain execution: two-way CronusSwap + CCTP v2 bridge to EVM & Stellar. Money rail is a contract, not a key (GuardV2 + 2-of-3 multisig). Honest leaderboard: external_payers=0.
Autonomous AI BD agent for SolCex Exchange — 24/7 token scanning across 19 chains, honest 100-point scoring, x402 USDC micropayments, and automated outreach. Powered by Claude Opus, deployed on Hetzner. Built by a chef through pure AI conversation.
Local, synchronous budget control SDK for agent payments. Declare per-call/agent/endpoint/tool caps and evaluate them before a payment is sent. Maintained by Harpd (harpd.com).
Canonical, protocol-agnostic audit record for agent payments. Normalizes x402/MPP/AP2 into one schema and validates it. Maintained by Harpd (harpd.com).
Drop-in x402 payment logging middleware for Node HTTP / Express. Structured, audit-friendly logs for every x402 interaction. Maintained by Harpd (harpd.com).
Harpd x402 V2 observability + budget-control SDK for agent payments — the 4 lifecycle hooks, above any Facilitator. Maintained by Harpd (harpd.com).
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