---
name: a2a-agent-card
title: A2A Agent Card
category: discovery
---

# A2A Agent Card

An Agent2Agent card publishes your agent's identity, skills and interfaces so other agents can discover and call it.

## When to use this skill

Use this when a site fails the "A2A Agent Card" check and you need to implement it.

## Goal

Publish an A2A Agent Card so other agents can discover this site's agent

## Pass criteria

/.well-known/agent-card.json declares name, version and supported interfaces.

## Implementation

This skill covers the diagnosis. The step-by-step implementation prompt is part
of the paid tier and is served per scan by the API — see https://agent-ready.t0ols.com/llms-full.txt.

## Specifications

- https://a2a-protocol.org/
- https://google.github.io/A2A/

## Verifying

Re-run the scan against the site and confirm the check reports a pass:

    curl -s https://agent-ready.t0ols.com/api/scan \
      -H 'content-type: application/json' \
      -d '{"url":"https://example.com","enabledChecks":["a2aAgentCard"]}'