Crate r402_http 

HTTP transport layer for the x402 payment protocol.

Feature Flags

• client — reqwest-middleware buyer: 402 → Payment-Signature retry
• server — Axum layer; authorization SettlementMode (Sequential / Concurrent / Background)

Re-exports

pub use buyer::WithPayments;client

pub use buyer::X402Client;client

pub use buyer::parse_payment_required;client

pub use buyer::payment_signature_headers;client

pub use headers::EXTENSION_RESPONSES;client or server

pub use headers::PAYMENT_REQUIRED;client or server

pub use headers::PAYMENT_RESPONSE;client or server

pub use headers::PAYMENT_SIGNATURE;client or server

pub use headers::SIGN_IN_WITH_X;client or server

pub use headers::X402_ALLOW_HEADERS;client or server

pub use headers::X402_EXPOSED_HEADERS;client or server

pub use headers::ensure_expose_headers;client or server

pub use headers::merge_private;client or server

pub use headers::set_no_store;client or server

pub use server::X402Middleware;server

Modules

buyerclient

Reqwest buyer: HTTP 402 → Payment-Signature retry.

headersclient or server

x402 HTTP header names and Cache-Control helpers.

serverserver

Axum/Tower payment gate. SettlementMode schedules authorization’s after-handler settle.

Enums

SettlementModeserver

After-handler settle scheduler for PaymentFlowName::Authorization.