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a2a-setup

Configure secure A2A v0.3.0 communication between OpenClaw instances.

551|115|Updated Feb 20, 2026
Search Tags:#agent communication#a2a#openclaw#gateway setup#peer configuration#cross-server messaging
One-click install
npx skills add https://github.com/win4r/openclaw-a2a-gateway --skill a2a-setup-win4r
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: a2a-setup
Source: https://github.com/win4r/openclaw-a2a-gateway/tree/main/skill
Command: npx skills add https://github.com/win4r/openclaw-a2a-gateway --skill a2a-setup-win4r

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @a2a-js/sdk, and includes scripts (resource) and references (resource) components.

What problem does it solve?

Manually configuring cross-server agent-to-agent communication between OpenClaw instances is complex, error-prone, and requires deep knowledge of the A2A protocol, network configuration, and security setup. This Skill eliminates that friction by providing a step-by-step, production-ready setup workflow.

Core Features & Use Cases

  • End-to-end A2A Gateway setup: Covers full plugin installation, Agent Card configuration, security token generation, peer registration, and network setup for Tailscale, LAN, or public IP environments.
  • Built-in utility scripts: Includes pre-built scripts for sending messages to peers, checking peer online status, and monitoring long-running A2A tasks, plus a TOOLS.md template to make agents aware of A2A capabilities.
  • Use case: For teams running multiple OpenClaw agents across separate servers that need to communicate securely, discover each other automatically, and route messages based on skills or tags without manual protocol handling.

Quick Start

Use the a2a-setup skill to configure cross-server A2A communication between your OpenClaw instances, including plugin installation, peer registration, and end-to-end verification.

Frequently Asked Questions about a2a-setup

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

FAQPage Schema
How do I set up cross-server agent communication between OpenClaw instances?▼

To set up cross-server agent communication, configure the A2A v0.3.0 protocol gateway by installing the required plugin, setting up Agent Cards, generating bearer tokens, and registering peers for secure message routing across your network.

Can I use A2A protocol for peer discovery and messaging across Tailscale or LAN?▼

Yes, A2A protocol supports peer discovery and authenticated message routing across Tailscale, LAN, or public IP deployments, enabling cross-network agent interoperability for OpenClaw instances without manual protocol handling.

What is the best way to secure cross-network agent-to-agent messaging?▼

The best way to secure cross-network agent-to-agent messaging is by implementing bearer token security within your A2A gateway setup, ensuring that only authenticated peers can route messages between OpenClaw instances.

Do I need to manually configure peer registration for A2A gateway setup?▼

No, you do not need to manually handle peer registration entirely; the A2A setup provides pre-built scripts and a step-by-step workflow to automate peer discovery, online status checks, and message routing configuration.

Why does my A2A cross-server message routing fail during plugin installation?▼

A2A cross-server message routing fails during plugin installation if Agent Cards are misconfigured, bearer tokens are missing, or network connectivity across Tailscale, LAN, or public IP is blocked, requiring built-in troubleshooting verification.

Does the a2a-setup skill support monitoring long-running agent tasks?▼

Yes, the a2a-setup skill supports monitoring long-running A2A tasks by providing built-in utility scripts to check peer online status, send messages to peers, and verify end-to-end connectivity across OpenClaw instances.

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