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@agentic-layer/n8n-nodes-a2a

v0.1.1

Published

n8n node for Agent-to-Agent (A2A) protocol communication

Vulnerabilities

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Links

Git

Maintainers

nicolai.ommernicolai.ommer

Keywords

n8n-community-node-packagea2aagent-to-agentai-agents

Readme

@agentic-layer/n8n-nodes-a2a

This is an n8n community node that provides integration with the A2A (Agent-to-Agent) protocol, enabling your n8n workflows to communicate with AI agents.

n8n is a fair-code licensed workflow automation platform.

Installation Operations Credentials Compatibility Resources

Installation

Follow the installation guide in the n8n community nodes documentation.

Operations

Send Message

  • Send a text message to an A2A-compatible AI agent
  • Optionally provide a contextId to maintain conversation context
  • Returns the full task object with status, response message, and artifacts

Credentials

A2A API

  • Server URL: The base URL of the A2A-compatible agent (e.g., https://agent.example.com/v1)
  • Authentication is not yet implemented in the current version

To configure credentials:

  1. In n8n, go to Credentials
  2. Create new credentials of type "A2A API"
  3. Enter the Server URL of your A2A-compatible agent
  4. Test the connection (validates by fetching the agent card from /.well-known/agent-card.json)

Compatibility

Compatible with [email protected] or later

What is A2A?

The A2A protocol is an open standard for agent-to-agent communication, enabling independent AI agents to discover and communicate with each other. This node allows n8n workflows to interact with any agent that implements the A2A protocol.

Current Capabilities

This is an MVP (Minimum Viable Product) implementation with the following features:

  • Send text messages to A2A-compatible agents via JSON-RPC 2.0
  • Receive immediate task responses (synchronous communication)
  • Support for conversation threading via contextId parameter
  • Access to full task details including status, messages, and artifacts
  • Agent discovery via standard /.well-known/agent-card.json endpoint

Not yet implemented:

  • Authentication
  • Long-running task polling
  • Streaming responses
  • File and data parts (only text messages supported)
  • Task management operations (list, get, cancel)

Resources