Crate r402_hedera 

Hedera chain support for the x402 payment protocol.

This crate implements the x402 "exact" scheme for Hedera: the buyer signs a TransferTransaction that credits payTo, and a facilitator fee payer submits it after Mirror Node preflight.

Features

• CAIP-2 Addressing: hedera:mainnet and hedera:testnet
• HBAR and HTS: native tinybars (0.0.0) and USDC token ids
• Fee-payer sponsorship: extra.feePayer is copied from /supported
• In-process facilitator: verify and settle via Hiero SDK

Feature Flags

• server — server-side price tag generation
• client — client-side transfer signing
• facilitator — facilitator-side payment verification and settlement
• telemetry — tracing instrumentation

Re-exports

pub use chain::inspect_hedera_transaction;client or facilitator

pub use chain::HederaChainProvider;facilitator

pub use chain::HederaFeePayer;facilitator

pub use chain::HederaMirrorClient;facilitator

pub use exact::HederaExact;

pub use exact::client::HederaExactClient;client

pub use exact::client::HederaSigner;client

pub use exact::facilitator::AliasPolicy;facilitator

pub use exact::facilitator::HederaExactFacilitator;facilitator

pub use exact::facilitator::HederaExactFacilitatorConfig;facilitator

Modules

chain

Hedera chain support for x402 payments.

exact

Hedera "exact" payment scheme implementation.

Structs

HBAR

Ergonomic accessors for native HBAR on well-known Hedera chains.

USDC

Ergonomic accessors for USDC token deployments on well-known Hedera chains.

Statics

HEDERA_NETWORKS

Well-known Hedera networks with their names and CAIP-2 identifiers.

Functions

hbar_deployment

Returns the HBAR deployment for a specific Hedera chain.

usdc_hedera_deployment

Returns the USDC deployment for a specific Hedera chain, if known.

usdc_hedera_deployments

Returns all known USDC deployments on Hedera chains.