Learn how to use AgentPay — from registering agents to EIP-712 Agent Grants, multi-chain settlement, and the live conformance suite.
Install the official x402-agentpay package and add machine payments to any AI agent in one line of Python. Zero dependencies.
Add programmable payments, escrow, spend policies, and USDC settlement to your AWS Bedrock AgentCore agents. Full walkthrough with code examples.
Read Guide →Signed spend grants that let AI agents pay autonomously — no private key sharing. Defines x402Grant struct with EIP-712 domain name="x402-AgentGrant", chainId=8453. Includes 6 test vectors, conformance runner, and Base Sepolia example.
Our x402 facilitator now natively verifies EIP-712 signed Agent Grants — the new standard for AI-to-AI payments. Validates signature, timing, budget, agent match, and 30% revocation window logic. Zero on-chain calls needed for verification.
View Endpoint →Run all 6 test vectors from the shawnhvac/x402 spec against the live facilitator in one API call. Returns pass/fail per vector — use this to confirm your agent implementation is spec-compliant before going to mainnet.
Complete 5-step guide: Grant signing → HTTP request with X-402-Payment header → Verification → On-chain settlement on Base L2 → Receipt proof. Includes Mermaid diagram, error cases, refund logic, and security checklist.
AI agents can register their humans on AgentPay in a single API call — no browser required. Returns API key + wallet address instantly. Includes Python, Node.js, cURL, and OpenAI function-calling examples. Also ships a machine-readable agent.json capability manifest.
Route x402 payments across 5 chains (Base, Ethereum, Optimism, Arbitrum, Polygon) through a single endpoint. 0.5% fee on settlement. Live /x402/verify, /x402/settle, and /x402/info endpoints. PR submitted to x402 Foundation ecosystem page.
All 6 specs + subgraph + examples + conformance suite + community docs in one repo. Self-contained — no AgentPay dependency required for basic implementations. Designed for immediate adoption by other teams.
View on GitHub →Production-ready AssemblyScript subgraph workspace — drop it in and deploy. Indexes GrantRegistry + SettlementListener events. 277-line mapping with Taylor-series time-decay for reputation scoring. Two TODOs remaining (contract address + block) — waiting on James.
One-command npm test runs all test vectors against your implementation. Covers: happy path, expired grant, wrong agent, clock skew, revocation window, and zero-budget. Also available live at GET /x402/conformance on the facilitator.
Full end-to-end demo with real on-chain USDC — not mocked. Uses EIP-3009 transferWithAuthorization for atomic settlement on Base Sepolia testnet. Node.js paying agent + Python receiving agent, both runnable in under 5 minutes.
Track every team implementing the x402 protocol. Visual stack diagram, implementation table, and step-by-step "add your implementation" guide. No AgentPay dependency required — any team can adopt the open protocol immediately.
View Community →Official minimal end-to-end example — Node.js paying agent (grant signing + X-402-Payment header) and Python receiving agent (full EIP-712 verification + replay protection). All local + testnet flows pass the full conformance suite.
Optional Sybil-resistant scoring for AI agents. Formula: 60% settlement success rate + 25% counterparty diversity + 15% time-decay (Taylor-series weighted). Queryable from any receiver via The Graph. Fully integrated with the subgraph workspace.
Read Spec →Step-by-step guide for service providers, consumers, and developers. Learn how to register agents, use the personal agent app, and integrate with our API.
Read Guide →Fast lookup card with instructions, pricing, key concepts, and common questions. Perfect for when you need answers quickly.
Quick Ref →Complete pricing breakdown, revenue projections, competitive analysis, and customer acquisition strategy. For investors and business partners.
View Pricing →5-phase development plan from foundation through scale. See what's planned for autonomous vehicles, Bluetooth/NFC, and cross-chain expansion.
View Roadmap →Complete Series A pitch deck with market opportunity, traction, financial projections, and exit strategy. For venture capitalists.
View Pitch →Strategy document for iOS and Android personal agent applications. Includes use cases, technical architecture, and launch timeline.
Read Strategy →Complete guide for building and deploying the Android personal agent app. Technical requirements, development phases, and testing checklist.
Read Guide →How worldwide location-based agent discovery works. Google Maps integration, cost optimization, and real-world use cases.
Read Setup →Email us at [email protected] or click the chat bubble on any page.
x402 AgentPay · AgentWorld Guide