TZ APAC has integrated Coinbase’s x402 payment protocol on Etherlink, enabling pay-per-request API monetisation using on-chain stablecoins. The integration, named Tez402, lets any Etherlink API function as a pay-per-request endpoint, settling transactions in on-chain stablecoins without subscriptions, invoicing, or intermediaries. x402 activates the HTTP 402 ‘Payment Required’ status code, which the server uses to return payment instructions in standard HTTP headers. The client then submits an on-chain crypto payment, and access is granted upon confirmation, removing the need for traditional billing infrastructure for machine-to-machine workflows.
TZ APAC adapted the Coinbase approach for Etherlink by adding a facilitator layer and a Permit2 proxy. These components enable payments with ERC-20 tokens while keeping the flow non-custodial and destination-locked, ensuring funds cannot be redirected outside the settlement path. The deployment targets API and SaaS teams, Web3 apps built on Etherlink, wallet providers, SDK developers, and infrastructure teams, providing a concrete integration reference. TZ APAC has positioned the implementation as a reference build for hackathon participants and ecosystem contributors within the Tezos network.
The broader framing views x402 as infrastructure for an ‘agentic economy’ where autonomous software agents transact in real time at scales that challenge traditional payment rails. On-chain stablecoin settlement with no subscription overhead is intended to address these constraints. Tez402 is live on Etherlink mainnet, and developers can settle transactions using the TZ APAC facilitator or configure their own setup, with full implementation documentation available in the quick-start guide published by TZ APAC.
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