Crate adk_payments 

Protocol-neutral agentic commerce and payment orchestration for ADK-Rust.

The initial crate scaffold tracks these protocol baselines:

• ACP stable 2026-01-30
• ACP experimental extensions as an unreleased compatibility channel
• AP2 v0.1-alpha as of 2026-03-22

Example

use adk_payments::{
    ACP_DELEGATE_AUTH_BASELINE, ACP_EXPERIMENTAL_CHANNEL, ACP_STABLE_BASELINE,
    AP2_ALPHA_BASELINE, AP2_ALPHA_BASELINE_DATE,
};

assert_eq!(ACP_STABLE_BASELINE, "2026-01-30");
assert_eq!(ACP_EXPERIMENTAL_CHANNEL, "unreleased");
assert_eq!(ACP_DELEGATE_AUTH_BASELINE, "2026-01-28");
assert_eq!(AP2_ALPHA_BASELINE, "v0.1-alpha");
assert_eq!(AP2_ALPHA_BASELINE_DATE, "2026-03-22");

Modules

auth

Payment authorization, actor binding, and audit integration points.

domain

Protocol-neutral commerce domain types.

guardrail

Payment-specific guardrails and redaction policies.

journal

Durable transaction journal, evidence storage, and safe memory indexing.

kernel

Canonical commerce kernel contracts.

protocol

Protocol adapter entry points.

server

Server and router integration for payment protocols.

tools

Agent-facing payment tool builders backed by the canonical commerce kernel.

Constants

ACP_DELEGATE_AUTH_BASELINE

ACP experimental delegated-authentication baseline version.

ACP_EXPERIMENTAL_CHANNEL

ACP experimental compatibility channel supported behind acp-experimental.

ACP_STABLE_BASELINE

ACP stable protocol baseline supported by this crate.

AP2_ALPHA_BASELINE

AP2 protocol baseline supported by this crate.

AP2_ALPHA_BASELINE_DATE

Date of the AP2 alpha research baseline tracked by this crate.