nowfound

AI · March 12, 2026

x402r Refund Protocol

Also launched on product hunt today: https://www.producthunt.com/products/x402r-refund-protocol?l... Would appreciate feedback!

x402r Refund Protocol launched on March 12, 2026 with 2 votes, #5,166 of 23,380 launches that month.

What it does

x402r is the refund extension for the x402 payment protocol. Enable secure, transparent, and automated refund processing for internet-native payments with escrow protection. We’ve been building for three months and won an Ethereum Foundation and Coinbase hackathon with it. After communicating with many teams, we just finished building the v2 of the protocol and wanted to share it with the broader tech community on ProductHunt!

x402r is the refund extension for the x402 payment protocol. Enable secure, transparent, and automated refund processing for internet-native payments with escrow protection.

Escrow-backed refunds for x402 payments. Funds held in smart contracts, released by your arbiter. Automated verification, human dispute resolution, or anything in between. Secure escrow-based payments with built-in refund protection and dispute resolution. Deploy your operator contract, pick your arbiter, configure escrow routes, and let the protocol handle the rest. import { AuthCaptureEvmScheme } from "@x402r/evm/auth-capture/server"; import { paymentMiddleware, x402ResourceServer } from "@x402/express"; import { HTTPFacilitatorClient } from "@x402/core/server"; import { forwardToArbiter , x402rDefaults } from "@x402r/helpers"; ... const facilitatorClient = new HTTPFacilitatorClient({…from x402r.org

Does a similar job

all alternatives →
  • x4022025 · x402.org · ▲119

    Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or…

  • P402.ioJan 2026 · p402.io · ▲102

    Route, verify, and settle paid API calls with clear traces

  • Web3Torrent – Adding Ethereum Micropayments to WebTorrent2020 · blog.statechannels.org · ▲206

    Peer-to-peer micropayments for torrenting. Built on ethereum using state channels.

  • delegareApr 2026 · delegare.dev · ▲70

    Hi guys, am building SecureLend.ai and when working on our underwriting agents (free trial, paid after) I had issues with seamless payment options. Of course I looked at x402 which I believe is a great protocol but not a fan of a) sharing private keys with the agent b) having a human in the loop or c) similar workaround e.g. pre-funded wallets So I started building out a solution. For my use case it was important to not only have stablecoins but also a fiat rail which is now implemented using Stripe. Initially I build a mandate system internally but am very glad and big shoutout to the guys…

  • Collection.xyz2022 · github.com · ▲76

    NFT liquidity incentive protocol

  • x402statsAug 2026 · x402stats.io · ▲3

    Independent x402 stats: organic volume, wash-trades removed

More ai this month

the category →
  • Video model that turns script into viral social media videos

    AI · 18d ago · spira.ai

  • The browser where Claude Code and Codex work beside you

    AI · 18d ago · rill.love

  • Kolibri is Aleph Alpha

    AI · 20d ago · tej.as

  • Paintings by AI models: programs run through a simulation of oil paint.

    AI · 21d ago · stillwet.art

  • A real-time world model you can explore and change

    AI · 30d ago · world.pixverse.video

  • Beam.win▲378

    Run AI agents on one Mac and use its windows on another

    AI · 4d ago · beam.win

Source: Product Hunt launch ↗

Launched alongside, March 2026

the whole month →
  • AI-native CRM that builds itself and does work for you

    AI · Mar 2026 · lightfield.app

  • Tobira.ai▲728

    A network where AI agents find deals for their humans

    AI · Mar 2026 · tobira.ai

  • Switch from ChatGPT to Claude with import memory feature

    AI · Mar 2026 · claude.com

  • Littlebird remembers everything across your meetings, messages, docs, and apps, then takes action so you can recall any detail and never lose context.

    AI · Mar 2026 · littlebird.ai

  • Your AI Coworker that proactively executes tasks

    AI · Mar 2026 · viktor.com

  • Jupid▲659

    File your taxes with Claude Code

    Commerce · Mar 2026 · jupid.com