Agent Payments Protocol
Validate user mandates and bind the final payment to approved intent.
Read the implementation guide →PROTOCOL SECURITY LIBRARY
Different payment protocols. One execution boundary.
Each protocol carries different evidence. The final purchase still needs the same deterministic amount, merchant, consent, expiry and replay checks.
Universal Commerce Protocol
Keep checkout interoperability separate from execution-time policy.
Read the implementation guide →Trusted Agent Protocol
Adapt normalized TAP-shaped evidence for signature, freshness and merchant-binding checks.
Read the implementation guide →HTTP-native payments
Apply budget and replay controls before signed payment submission.
Read the implementation guide →Machine Payments Protocol
Normalize final paid-API terms into delegated authority before credential construction.
Read the implementation guide →Agentic Commerce Protocol
Validate the customer-approved checkout before payment processing.
Read the implementation guide →NORMALIZE ONCE