EIP-712

mentions 2 type Organization feed RSS

// recent coverage 2 mentions

20:23

2026-06-29

dev.to

developer-tools

Charge per API call in USDC — and give buyers a receipt they can verify

A developer built an Express endpoint that charges per API call in USDC via the x402 protocol and provides a signed receipt (EIP-712 attestation) that buyers can verify before acting on the response. …

03:57

2026-06-04

github.com

ai-agents

Show HN: X402-express. Pay-per-call HTTP 402 middleware for AI agents on Base L2

M2MCent released X402-express, an open-source middleware that enables AI agents to pay per API call using USDC on Base L2. The npm package implements the x402 payment protocol, allowing developers to …

// co-occurs with top 8 entities

USDC 2 Express 2 M2MCent 1 X402 1 Base L2 1 MCP Servers 1 Escrow 1 x402 1

// topics top 6 topics

ai agents 2 ai infrastructure 1 ai products 1 ai tools 1 ai startups 1 developer tools 1