A2Apex Test and certify A2A agents for protocol compliance

A2Apex is a testing and certification platform for AI agents that implement the A2A and MCP protocols. The tool performs full spec compliance checking with detailed error messages and fix suggestions, validating JSON-RPC responses and task state transitions. It also verifies Server-Sent Events streaming implementation and checks authentication schemes, HTTPS, and security configurations. Certified agents receive an embeddable badge that links to a public registry listing. A2Apex offers a free tier with 5 agent tests per month and a basic registry listing, with paid tiers providing unlimited tests and badges valid for one year. The platform is aimed at AI developers and teams building interoperable agent systems. A2Apex is available for free to get started.