Quote schema
Protocol component for x402 implementation.
01 / 07COLLECTION
COLLECTION
ARTIC 402
Cold, clean, readable technical standard for machine payments. Less clutter, stronger contrast, and clearer product-catalog rhythm.
Technical standard
HTTP 402 becomes a response pattern for quote, payment proof, verification and delivery.
Agents can pay for APIs, data and compute without human checkout sessions.
Proof header
Protocol component for x402 implementation.
Verifier
Protocol component for x402 implementation.
Escrow release
Protocol component for x402 implementation.
SDK examples
Protocol component for x402 implementation.
Agent client
Protocol component for x402 implementation.
BUILT FOR MACHINE CHECKOUT
Quote schema
Machine-readable pricing replaces a traditional checkout page.
Proof header
The API can verify payment state before delivering the paid response.
Verifier route
The protocol can be implemented as middleware or a gateway layer.
Settlement record
Merchants get clean records for agent-driven paid requests.
Resources / status / support
Spec documents SDK notes Governance roadmap Developer contact
Technical resources
The protocol site is intentionally cleaner now. Bottom sections provide context without crowding the arctic collection layout.
HTTP 402 response schema, quote model, proof fields, and settlement references.
Python, Node.js, middleware examples, integration patterns, and testing flows.
Mainnet, cross-chain expansion, standards work, and ecosystem coordination.
Ask for docs access, SDK previews, and technical clarification.