another early project built on erc8004 x402
a very good idea. it does not change user erc3009 authorization but forwards it through a proxy contract to the usdc contract. this means part of the facilitator’s function is now handled onchain.
interesting. this gives x402 more than basic payment capability.
Meet xEcho: a Pay & Reward system built on ERC-8004 and x402.
More than agent registry, discovery, and payment, xEcho further adds an incentive layer to enable a self-reinforcing growth flywheel for agents.
In the era where agentic AI becomes an independent economy, letting every AI interaction echo its own economy is the vision we have been building toward.
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