x402 payment facilitator — verifies and settles EIP-3009 USDC micropayments on Base, Arbitrum, and Ethereum.
XMR402 is an open, neutral standard for internet-native payments. It absolves the Internet's original sin by natively making payments possible between clients and servers, creating win-win economies that empower agentic payments at scale. XMR402 exists to build a more free and fair internet.
DNA — Payment rails for AI agents. x402 micropayment protocol on Solana. Netting, transfer, stream settlement. Receipt anchoring on-chain.
APIMesh — 23 pay-per-call web analysis APIs + 16-tool MCP server with autonomous API generation. Security audits, SEO, tech stack detection. x402 + Stripe MPP payments.
Official documentation for {xpay✦}. Learn how to monetize, manage, and observe your AI agents using the x402 protocol.
Collateral that can still sell itself — Magpie's x402 agent API: borrow SOL programmatically on Solana.
x402 Micropayments Protocol - Payment integration library for web3 content & APIs
Payment-gating library for SAP CAP built on top of @odatano/core. Implements the Cardano-x402-v2 spec - gated OData endpoints return HTTP 402 until the caller proves on-chain settlement. Asset-agnostic, no database, no smart contract: replay defense is the Cardano UTxO model itself
Example agents and integrations for the Floe spend management for 2,000+ API services
MCP server for TrustAdd — the AI agent trust oracle. Check trust scores, explore the Multi-Protocol Payment (MPP) ecosystem, and query cross-chain analytics for ERC-8004 agents across 9 EVM chains + Tempo.
Industrial-grade Monero payment gating for modern APIs. IETF-compliant, 0-conf enabled, and built for the sovereign internet.
Classify the caller, then allow, block, or charge via x402
x402 client implementation (x402-fetch), HTTP 402 server implementation and Model Context Protocol (MCP) for P-Link.io : pay, send and receive money with agents
Create encrypted zk-Prof(ile) Pictures with privacy-first photos for the undoxxed by Arubaito
Agent-native market intelligence API for financial AI agents, quant research, and autonomous portfolio workflows.
Curated list of awesome (paid via x402) MCP services. No accounts required. Payments via x402 for MCP tools.
Add a description, image, and links to the x402-api topic page so that developers can more easily learn about it.
To associate your repository with the x402-api topic, visit your repo's landing page and select "manage topics."