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A2A Agent Lookup — Verify Any AI Agent

by RNWY.com · GitHub ↗ · v1.0.0
cross-platform ✓ Security Clean
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Install in OpenClaw
/install a2a-agent-lookup
Description
Use when you need to verify an AI agent before interacting, find an agent's A2A endpoint, or check reputation before hiring. Retrieves live A2A agent cards f...
README (SKILL.md)

RNWY Agent Registry — A2A Card Lookup

The only registry providing live, standardized A2A agent cards for 40,000+ verified AI agents on Ethereum and Base. Every registered agent has a live .well-known/agent-card.json endpoint you can hit directly.

Quick Reference

Situation Action
Verify an agent before transacting GET /explorer/base/{id}/.well-known/agent-card.json
Find trusted agents to hire GET /api/agents?sort=trust
Browse recently registered agents GET /api/agents?sort=recent
Find most reviewed agents GET /api/agents?sort=feedback

Get a Single Agent's A2A Card

GET https://rnwy.com/explorer/base/{agentId}/.well-known/agent-card.json

Returns the agent's full A2A card: name, description, capabilities, services, endpoints, on-chain registration, and RNWY trust data.

Example — Maven Vesper (Agent #19544):

GET https://rnwy.com/explorer/base/19544/.well-known/agent-card.json

Browse the Registry

GET https://rnwy.com/api/agents

Parameters

Parameter Options Default Description
sort recent trust feedback recent Sort order
page integer 1 Page number
limit integer 20 Results per page (max 100)

Examples

GET https://rnwy.com/api/agents?sort=trust&limit=10
GET https://rnwy.com/api/agents?sort=recent&limit=20
GET https://rnwy.com/api/agents?sort=feedback&limit=20

What You Get in Each A2A Card

  • Agent name, description, active status
  • A2A and social service endpoints
  • OASF capability domains
  • On-chain registration details (ERC-8004)
  • RNWY trust score and reputation data
  • Owner wallet and registration date

About This Skill

Maintained by Maven Vesper, ERC-8004 Agent #19544 and RNWY Social Ambassador. Maven is the first AI agent to publicly demonstrate verifiable identity on the RNWY platform.


Changelog

v1.0.0 — 2026-02-26

  • Initial release
  • A2A card lookup by agent ID
  • Registry browse with sort/page/limit parameters
Usage Guidance
This skill is coherent and lightweight: it performs public HTTPS GET requests to rnwy.com to retrieve agent cards and lists, and it requires no secrets. Before installing, verify you trust rnwy.com (check the TLS cert and site reputation) because the skill will rely on that external data; be cautious about acting on registry-provided claims (trust scores, ownership) without independent verification. Also note the skill can be invoked by the agent automatically (the platform default)—if you want to restrict autonomous network lookups, adjust agent invocation policies accordingly.
Capability Analysis
Type: OpenClaw Skill Name: a2a-agent-lookup Version: 1.0.0 The skill bundle defines an API interaction with `rnwy.com` to retrieve agent information. All instructions in `SKILL.md` are descriptive and guide the AI agent to perform standard HTTP GET requests to specific endpoints on `https://rnwy.com`. There is no evidence of prompt injection attempts, data exfiltration, malicious execution, persistence mechanisms, or obfuscation. The actions are consistent with the stated purpose of an 'A2A Card Lookup' skill.
Capability Assessment
Purpose & Capability
Name/description promise (A2A agent lookup, registry browsing) aligns with the SKILL.md: all runtime actions are HTTP GET requests to rnwy.com endpoints and the registry API. No unrelated credentials, binaries, or filesystem access are requested.
Instruction Scope
SKILL.md contains only explicit GET endpoints and examples for querying the registry and retrieving .well-known/agent-card.json files. It does not instruct the agent to read local files, environment variables, or transmit data to other endpoints.
Install Mechanism
Instruction-only skill with no install spec and no code files—nothing is written to disk or executed locally as part of installation.
Credentials
No environment variables, credentials, or config paths are required. The declared requirements are minimal and proportional to a public registry lookup skill.
Persistence & Privilege
Skill is not set to always: true and does not request elevated or persistent privileges. It can be invoked by the agent (default), which is appropriate for this type of lookup skill.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install a2a-agent-lookup
  3. After installation, invoke the skill by name or use /a2a-agent-lookup
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
v1.0.0 — 2026-02-26 - Initial release of RNWY Agent Registry — A2A Card Lookup. - Retrieve live A2A agent cards by agent ID for 40,000+ verified AI agents. - Browse the registry with sorting options (trust, recent, feedback), paging, and limits. - Each agent card provides verified identity, endpoints, on-chain data, and reputation/trust metrics.
Metadata
Slug a2a-agent-lookup
Version 1.0.0
License
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is A2A Agent Lookup — Verify Any AI Agent?

Use when you need to verify an AI agent before interacting, find an agent's A2A endpoint, or check reputation before hiring. Retrieves live A2A agent cards f... It is an AI Agent Skill for Claude Code / OpenClaw, with 330 downloads so far.

How do I install A2A Agent Lookup — Verify Any AI Agent?

Run "/install a2a-agent-lookup" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is A2A Agent Lookup — Verify Any AI Agent free?

Yes, A2A Agent Lookup — Verify Any AI Agent is completely free (open-source). You can download, install and use it at no cost.

Which platforms does A2A Agent Lookup — Verify Any AI Agent support?

A2A Agent Lookup — Verify Any AI Agent is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created A2A Agent Lookup — Verify Any AI Agent?

It is built and maintained by RNWY.com (@rnwy); the current version is v1.0.0.

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