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a2a-protocol

Provide A2A protocol reference for JSON-RPC 2.0 messaging over HTTP.

106|51|Updated May 1, 2025
Search Tags:#integration#protocol#agent-to-agent#a2a#jsonrpc#OASF
One-click install
npx skills add https://github.com/agntcy/coffeeAgntcy --skill a2a-protocol-agntcy
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: a2a-protocol
Source: https://github.com/agntcy/coffeeAgntcy/tree/main/coffeeAGNTCY/coffee_agents/recruiter/coding-agent-integrations/claude-code/plugin/skills/a2a-protocol
Command: npx skills add https://github.com/agntcy/coffeeAgntcy --skill a2a-protocol-agntcy

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides detailed knowledge about the A2A (Agent-to-Agent) protocol and formats, guiding users in implementing standardized inter-agent communication.

Core Features & Use Cases

  • Protocol Standards: Explains JSON-RPC 2.0 messaging over HTTP for agent interactions.
  • Format Guides: Describes OASF records and agent card structures for agent discovery and connection.
  • Use Case: Enables developers to integrate agents within the AGNTCY ecosystem by understanding communication protocols and directory queries.

Quick Start

Ask the AI how to send messages to agents using the A2A protocol to initiate communication setup.

Frequently Asked Questions about a2a-protocol

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is the A2A protocol and how does agent-to-agent communication work?▼

The A2A protocol is a standardized communication framework using JSON-RPC 2.0 messaging over HTTP to enable seamless agent-to-agent integration and interaction across different platforms within the AGNTCY ecosystem.

How do I format messages to send to agents using the A2A protocol?▼

To send messages using the A2A protocol, format your requests as JSON-RPC 2.0 payloads over HTTP, adhering to the specified data structures and message formats to ensure proper inter-agent communication and secure interaction.

How does agent discovery work in the AGNTCY ecosystem?▼

Agent discovery in the AGNTCY ecosystem utilizes OASF records and agent card structures to query directories, allowing developers to find and connect with available agents using the A2A protocol's standardized directory query features.

Do I need JSON-RPC 2.0 to integrate agents within the AGNTCY ecosystem?▼

Yes, JSON-RPC 2.0 over HTTP is the required messaging standard for integrating agents within the AGNTCY ecosystem, ensuring standardized communication, secure interaction, and proper protocol version detection across platforms.

What are OASF records and how are they used for agent connection?▼

OASF records are standardized data structures describing agent capabilities and connection details. They function alongside agent card structures to facilitate agent discovery and enable seamless integration within the AGNTCY ecosystem.

Are there best practices for secure interaction in agent-to-agent communication?▼

Yes, the A2A protocol defines specific best practices for secure interaction during agent-to-agent communication, guiding developers on protocol standards, data structures, and safe message formatting to protect inter-agent exchanges.

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