x402 USDT
Why x402 Doesn't Support USDT
A technical explanation of why USDT (Tether) isn't compatible with the x402 protocol, and why USDC is the stablecoin of choice for HTTP-native payments.
PayIn Team |
PayIn Blog
Updates, guides, and insights about stablecoin payments, blockchain technology, and building with PayIn.
x402 Solana
Solana's Authorization Mechanism: How x402 Works Beyond EVM
Understanding how Solana's native architecture enables x402 payments without needing ERC-3009, and how Token-2022 extensions enhance the experience.
PayIn Team |
x402 ERC-3009
ERC-3009: The Protocol Powering x402 Payments
A deep dive into ERC-3009 Transfer With Authorization - the cryptographic standard that enables gasless, signature-based token transfers in the x402 protocol.
PayIn Team |
x402 payments
x402 Facilitators: The Infrastructure Behind Seamless Crypto Payments
A comprehensive guide to x402 facilitators - what they do, why they matter, and a complete list of available facilitators with their supported networks.
PayIn Team |
stablecoins USDC
How to Accept Stablecoin Payments: A Complete Guide for Businesses in 2025
Learn how to accept stablecoin payments like USDC and USDT for your business. Reduce fees, speed up settlements, and reach global customers without the complexity of traditional payment processors.
PayIn Team |
USDC payments
How to Get Paid in USDC: A Complete Guide
A comprehensive comparison of USDC payment methods for developers, freelancers, and merchants. From wallet addresses to x402 protocol, find the best solution for your needs.
PayIn Team |
x402 payments
x402 Developer's Guide: Building Payment-Enabled APIs
A hands-on guide to integrating the x402 payment protocol into your applications. Learn middleware setup, payment lifecycle, testing with x402-fetch, and production deployment.
PayIn Team |
x402 payments
The Complete Guide to x402 Protocol: The Future of Internet-Native Payments
Learn how the x402 protocol enables zero-fee, instant cryptocurrency payments through HTTP 402 status code, and how to integrate it into your applications.
PayIn Team |
x402 AI agents
x402 Sounds Perfect. So Why Isn't Anyone Using It?
The x402 protocol promises zero-fee, instant payments for AI agents. But three critical gaps are blocking real-world adoption. Here's what's missing—and how to fix it.
PayIn Team |
ai mcp
AI Agents and Payments: The MCP Revolution
How Model Context Protocol (MCP) enables AI agents to make autonomous payments, and why this changes everything.
PayIn Team |
guide technical
Understanding Stablecoin Payments: A Technical Guide
A deep dive into how stablecoin payments work, from token transfers to confirmation times, and what developers need to know.
PayIn Team |
announcement stablecoins
Introducing PayIn: Non-Custodial Stablecoin Payments
Today we're launching PayIn, a non-custodial payment processor that lets businesses accept USDT, USDC, and other stablecoins across multiple blockchains.
PayIn Team |