Protocol registry

Browse protocols and projects by the part of agentic commerce they address.

Payment and settlement

Payments for web resources and APIs using HTTP 402.

Checkout and payment flows between AI agents and merchants.

Payment credentials and controls for purchases made by AI agents.

Card payments for AI agents using agent-specific payment tokens.

Payment credentials, spending controls and settlement for machine-driven commerce.

Agentic Mobile Protocol connects agent purchases with mobile wallets.

Signed mandates that record a user’s authorization for an agent’s purchase and payment.

A verifiable record of what a user authorized an agent to do.

Delegating digital credentials to another party with defined limits.

Linking an agent’s delegated authority to a verified organization.

Authenticating automated web requests and identifying the operators behind them.

Trusted Agent Protocol helps merchants recognize agents through signed requests.

Registries for agent identity, reputation and validation on Ethereum.

Communication and task collaboration between AI agents.

Escrow for agent commerce, with payment tied to the evaluation of completed work.

Contract interfaces for arbitration and evidence on Ethereum.

Contracts and dispute resolution for exchanges between AI agents.