INDEPENDENT MERCHANT INTELLIGENCEPUBLIC BETA / SEPTEMBER 2026 BASELINE
Agentic Commerce Wiki / Living reference

The rules behind the transaction.

Eight protocol and framework records. Clear layers, current sources and explicit limits.

Commerce · Payment · Transport · Agent coordination · Identity / trust · Framework. A released specification does not establish a live merchant integration.

8 protocol entries · Alphabetical order · Checked 28 Sep 2026

A2

Agent2Agent Protocol ↗

Agent coordination

A standard for communication and task coordination between agents.

Specification state: live · 1.0.1 repository release / 1.0.0 specification banner — scope unresolved

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AC

A commerce interaction standard connecting businesses, buyers and their agents.

Specification state: public-preview · 2026-04-17 · repository identifies specification as beta

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MP

A payment protocol for machine consumption of web services.

Specification state: draft · draft-httpauth-payment-01 · normative core; broader SDK/method versions separate

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x4

x402 ↗

Payments

An internet payment standard built around HTTP payment negotiation.

Specification state: live · 2

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