Transaction Authorization Protocol

A framework for secure, compliant, and flexible blockchain transaction authorization

The Transaction Authorization Protocol (TAP) enables secure, compliant, and flexible transaction authorization between parties before settlement on a blockchain. TAP creates a separate "authorization layer" that operates independently from the blockchain "settlement layer," allowing participants to exchange necessary information, perform risk assessments, and implement compliance checks before funds move.

Read the Overview View TAP Messages

Transaction Authorization Improvement Proposals (TAIPs)

TAIPs describe standards for the Transaction Authorization Protocol ecosystem.

Core TAIPs

TAIP-1: TAP and TAIP Purpose and Guidelines

Review

Defines a standard component of the Transaction Authorization Protocol.

TAIP-2: Messaging

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-3: Asset Transfer

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-4: Transaction Authorization Protocol

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-5: Transaction Agents

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-6: Transaction Parties

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-7: Agent Policies

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-8: Selective Disclosure

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-9: Proof of Relationship

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-10: IVMS101 for Travel Rule Identity Verification in TAP

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-11: Legal Entity Identifier (LEI) to Identify institutional participants in TAP Messages

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-12: Hashed Participant Name sharing in TAP messages

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-13: Transaction Purpose Codes

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-14: Payments

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Defines a standard component of the Transaction Authorization Protocol.

TAIP-15: Agent Connection Protocol

Draft

Defines a standard component of the Transaction Authorization Protocol.

TAIP-16: Invoices

Draft

Defines a standard component of the Transaction Authorization Protocol.