Awesome Servers with x402 Payment Protocol Integration
📅 Updated for June 2025 release of x402 Whitepaper and Protocol Specs
x402 is an open payment protocol built on top of HTTP using the long-reserved 402 Payment Required status code. It enables AI agents, clients, and web services to conduct autonomous pay-per-use payments using stablecoins such as USDC on EVM-compatible blockchains.
It allows seamless machine-native transactions:
- No API keys
- No subscriptions
- No accounts
- No chargebacks
- Instant payments
Read the full x402 Whitepaper
- Base Mainnet Charts by programmer Dune Analytics
- x402 @lifewillbeokay Dune Analytics
- x402: Building dynamic tools for AI agents, demos, and use-cases. Youtube
- x402: Internet Native Payments for Humans and AI Agents. Youtube
- exact (current): Uses EIP-3009 (
transferWithAuthorization) - permit (experimental): Uses EIP-2612 (
permit) — enables streaming / usage-based payments via routing contracts. - Future: Hybrid escrow-based settlement and multicall batching.
- Built for agentic commerce
- Instant micropayments ($0.001 per request possible)
- Supports AI agents, APIs, content paywalls, cloud compute, etc.
- No subscriptions, no API keys, no manual billing