LaunchBuddy
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LaunchBuddy · free builder tool

A2A Agent Card validator

Validate identity, interfaces, skills and media modes in a supplied Agent Card.

The JSON is checked locally. A declaration does not establish endpoint behavior or authorize a tool call. Do not paste credentials.

The JSON stays in this browser. Remove credentials and private customer data before sharing an export.

Use the result

  1. Review the evidence and anything that could not be observed.
  2. Choose one useful change or test, with a clear completion check.
  3. Export the result for your agent and repeat the same check after the change.

This tool does not publish, purchase, sign in or change your website.

Related guides

Find another resource · Get a free launch report · Use LaunchBuddy with your agent