Design

Agent Interoperability Protocol (AIP) Open Communication Standard for Agent Ecosystems

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1. Protocol Overview

The Agent Interoperability Protocol (AIP) is an open communication standard designed for agent ecosystems to enable cross-platform and cross-environment collaboration, fostering a trusted distributed agent network. AIP defines communication mechanisms, trust guarantees, message persistence, and verification methods to ensure efficient and secure interactions between agents.

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2. Protocol Scope

• Discovery and Interoperability of heterogeneous agents.

• Hybrid Communication Modes (Real-time/Asynchronous).

• Trusted Execution Environment construction.

• On-chain and Off-chain Collaborative Verification Mechanism.

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3. System Architecture

3.1 Layered Model

Layer	Component	Description
Application	AIP SDK	Protocol implementation
Service	Agent Hub	Agent discovery，Message routing
Protocol	AIP	Message encoding and decoding, Transmission control, Message verification
Basis	DA++	Identity attestation, Message persistence, and Traceability
	Blockchain	Identity registration, Role authorization, and on-chain transactions

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4. Protocol Standards

4.1 Message Format

AIP uses JSON for message formatting. The structure includes:

• Header:

  • MessageType: Type of message (e.g., Request, Response, Event).

  • Sender: Unique identifier of the sender.

  • Receiver: Unique identifier of the receiver.

  • Timestamp: Message creation timestamp.

  • Auth: Authorization metadata for verifying message integrity, sender identity, and permissions.

• Body:

  • Contains message-specific content (e.g., request parameters, response results, or event data).

4.2 Communication Modes

AIP supports the following modes:

• Request-Response: A client sends a request, and a server returns a response.

• Subscribe-Publish: Clients subscribe to specific topics, and servers publish related messages.

• Broadcast: Servers broadcast messages to all connected clients.

4.3 Communication Security

AIP implements the following security measures:

• Authentication: Validates sender identities using digital signatures.

• Authorization: Manages resource access via Role-Based Access Control (RBAC) and agent-customized validation.

• Encryption: Ensures message confidentiality through cryptographic techniques.

• Integrity Protection: Guarantees message integrity using hash functions.

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Note: This document outlines the foundational specifications of AIP. Implementation details and extended features may vary based on specific use cases and ecosystem requirements.