PUBLIC TECHNICAL OVERVIEW

FAIRPLAY PROTOCOL

A shared rules-and-receipts layer for AI commerce.

FairPlay provides a common protocol for independent AI agents to establish transaction rules, exchange structured offers, verify compliance, and produce auditable evidence of the resulting agreement.

It sits underneath existing agents, marketplaces and commerce platforms rather than replacing them.

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One protocol. Three layers of trust.

RULES LAYER

Defines the fairness policy, privacy constraints and transaction requirements that govern an interaction.

Policy · Privacy · Fairness requirements

RULES LAYER

Defines the fairness policy, privacy constraints and transaction requirements that govern an interaction.

Policy · Privacy · Fairness requirements

INTERACTION LAYER

Governs how consumer and business agents exchange offers, explanations and verification evidence.

Consumer Agent ↔ Business Agent

INTERACTION LAYER

Governs how consumer and business agents exchange offers, explanations and verification evidence.

Consumer Agent ↔ Business Agent

VERIFICATION LAYER

Creates the integrity record required for settlement, audit and dispute review.

Evidence · Receipt · Audit

VERIFICATION LAYER

Creates the integrity record required for settlement, audit and dispute review.

Evidence · Receipt · Audit

From alignment to verifiable outcome.

Before negotiation begins, agents establish the policy governing the interaction. Only permitted context is exchanged. Offers and supporting evidence are evaluated against that policy. Once both agents accept the outcome, the agreement is sealed in a tamper-evident receipt that can later support selective audit.

Establish rules

Set the interaction policy.

Share permitted context

Exchange only permitted context.

Negotiate

Evaluate offers against policy.

Seal the agreement

Create the agreed receipt.

Verify later

Support later review.

Machine-readable evidence at every stage.

Policy

The agreed rules governing fairness, transparency and privacy.

Policy

The agreed rules governing fairness, transparency and privacy.

Permission

A scoped record of what information may be used and for what purpose.

Permission

A scoped record of what information may be used and for what purpose.

Offer Commitment

Integrity evidence tying an offer to what was actually presented.

Offer Commitment

Integrity evidence tying an offer to what was actually presented.

Fairness Evidence

Metrics or proofs showing whether the interaction satisfies the declared policy.

Fairness Evidence

Metrics or proofs showing whether the interaction satisfies the declared policy.

Receipt

A dual-party record sealing the agreed outcome and applicable policy.

Receipt

A dual-party record sealing the agreed outcome and applicable policy.

Audit Package

Selective evidence allowing authorized review without exposing unnecessary private information.

Trust without unnecessary exposure.

FairPlay separates verification from disclosure. The protocol is designed so that compliance can be demonstrated without requiring consumers to expose identity or businesses to reveal proprietary decision logic unnecessarily.

Data minimization

Only transaction-relevant information should be exchanged.

Selective verification

Evidence should prove what is necessary without exposing underlying data whenever possible.

Auditable outcomes

The resulting record should remain independently verifiable after the transaction.

Designed for an open agent ecosystem.

FairPlay is an infrastructure protocol, not a marketplace, pricing engine, payment network or consumer agent. Independent systems can implement the protocol while continuing to control their own products, models and commercial relationships.

Open

Interoperable

Transport-agnostic

Policy-pluggable

Audit-ready

FAIRPLAY PROTOCOL

Build interoperable trust into agentic commerce.

We are looking for consumer-agent platforms, commerce partners and technical collaborators to help develop and test the FairPlay Protocol.

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Partner with FairPlay