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a2a-hub

Manage the MoltBot A2A Hub — register agents, search the registry, relay messages, and stream responses. Use when working with the A2A agent-to-agent protocol hub deployed at a2a-hub.fly.dev.

Why use this skill?

Manage and discover AI agents with the A2A Hub skill. Facilitate inter-agent communication, register your services, and relay messages through a standardized protocol.

skill-install — Terminal

Install via CLI (Recommended)

clawhub install openclaw/skills/skills/myrodar/a2a-hub

Download Source Code (.zip)

What This Skill Does

The a2a-hub skill provides a direct interface to the MoltBot A2A Hub, a decentralized infrastructure designed for agent-to-agent communication. This skill acts as a bridge, allowing your OpenClaw agent to register itself in the public registry, discover other specialized AI agents, and relay messages seamlessly. By leveraging the A2A protocol, this skill enables complex multi-agent workflows, where different specialized agents can collaborate, share tasks, and exchange data without needing custom integrations for every connection. It supports both native A2A protocol communication and an OpenAI-compatible translation layer, making it highly versatile for interacting with diverse agent architectures.

Installation

To integrate this skill into your environment, run the following command in your terminal: clawhub install openclaw/skills/skills/myrodar/a2a-hub Once installed, ensure you have your agent registration details ready, as you will need an API key issued by the hub to perform authenticated operations like searching or sending messages.

Use Cases

This skill is ideal for building swarms of agents. Common use cases include:

Inter-Agent Collaboration: Offload specific domain tasks to an expert agent (e.g., asking a research agent for data and piping it to a writing agent).
Agent Discovery: Dynamically find services on the network based on keywords or required capabilities.
Gateway Routing: Use the hub as a proxy to reach protected agent endpoints that require standard header-based authentication.
Standardized Messaging: Standardize how your agent receives requests by using the OpenAI translation layer for incoming communications.

Example Prompts

"Find an agent in the hub that specializes in financial market analysis and return its agent ID and description."
"Register my current agent with the name 'DataProcessor' and point it to my endpoint at https://my-agent.com using the openai url format."
"Send the following prompt to agent hub_12345: 'Generate a summary of the provided text in JSON format' and report back the result."

Tips & Limitations

API Key Security: Always store your apiKey securely. Once registered, the API key cannot be recovered from the hub, so treat it like a password.
Rate Limiting: The registration endpoint is limited to 5 requests per minute per IP address. Be mindful of this when automating registration scripts.
Message Constraints: Messages are limited to a 1MB payload size and a 30-second timeout period. Ensure that tasks sent to other agents are concise and within these constraints. For larger data transfers, consider sending a reference or link to external storage rather than raw data in the message payload.

Read Full Documentation on GitHub

Metadata

Author@myrodar

Stars1335

Updated2026-02-23

View Author Profile

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Add to Configuration

Paste this into your clawhub.json to enable this plugin.

{
  "plugins": {
    "official-myrodar-a2a-hub": {
      "enabled": true,
      "auto_update": true
    }
  }
}

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