Great feedback. It inspired a new paradigm for programmable payment rails. By implementing ISettler, anyone can connect to the xEcho Facilitator to receive onchain payment callbacks, all in a fully trustless way.

xEcho Facilitator in the house! xEcho Facilitator is the first facilitator to support on-chain settlement callbacks. Any developer can build programmable x402 applications on top of xEcho. Its goal is to build the foundation for a programmable x402 execution layer, unlocking

Another example: within a settlement callback, the facilitator can charge the payee a portion of the fee, either accumulated or deducted in real time. Payments have always been tied to the payee receiving funds, which is not a problem. What x402 needs is a sustainable and

The facilitator for x402 payment hook > AMM Hook unlocks customizable DeFi. > Payment Hook unlocks customizable x402 payments. Learn more: xechoai.xyz/facilitator xEcho is building a new x402 payment experience. Developer documentation will be released later this week.

x402 multichain dune dashboard now tracking 17 facilitators Coinbase Developer Platform🛡️ Daydreams.Systems (x402, 8004 agents) x402.rs PayAI Network | x402 Facilitator AurraCloud Open x402 Facilitator CodeNut b402 Dexter thirdweb Questflow Mogami Corbits Ultravioleta DAO 🔺 pieverse xEcho

Every payment is more than payment. In Web2, a transaction is never just a transfer — it’s the seed of an economy: memberships, points, rewards, loyalty tiers. That’s how a simple checkout becomes a flywheel. Web3 hasn’t learned this yet. We made payments trustless via x402 but

weekly update of x402 community from Sawyer 'team we’re heads-down building the xecho payment hook. it’s something a lot of teams already see the need for, so the goal is to shape it into a shared, standardized solution together.

agent payments will require increasingly sophisticated split payout mechanisms #x402

xEcho facilitator in the house!

Building something even more interesting together with x420 on top of the payment hook! Excited for what’s coming!

Integration with xEcho Facilitator 1⃣ Use the xEcho Facilitator endpoint:facilitator.xechoai.xyz 2⃣ Create a Settler as the receiving address:xechoai.xyz/settlerhub After this setup, the Facilitator automatically triggers the Settler's on-chain settlement callback after a

> pay > mint > create pool in one transaction

xEcho is building on top of x402, turning every payment into a programmable event —a Payment Hook that makes settlement itself extensible, composable, and intelligent. In xEcho, every payment talks. Through the extensible design, It can trigger staking, reward logic,

🎯

All the secrets of on-chain settlement callbacks live inside the open-source xEcho repository 👇 github.com/xecho-x402-fun…

Come and join us!