Description
@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
contextIdto 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:
- In n8n, go to Credentials
- Create new credentials of type "A2A API"
- Enter the Server URL of your A2A-compatible agent
- Test the connection (validates by fetching the agent card from
/.well-known/agent-card.json)
Compatibility
Compatible with n8n@1.60.0 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
contextIdparameter - Access to full task details including status, messages, and artifacts
- Agent discovery via standard
/.well-known/agent-card.jsonendpoint
Not yet implemented:
- Authentication
- Long-running task polling
- Streaming responses
- File and data parts (only text messages supported)
- Task management operations (list, get, cancel)
