Emerging Protocols Checker
Probe a site for OAuth Discovery (RFC 8414), MCP Server Card and A2A Agent Card. Find out which AI agents can auto-discover and connect to your service.
Just the origin is needed — we hit /.well-known/* on it.
Detection result
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About these protocols
These three well-known descriptors are the building blocks of the agent web. OAuth Discovery is mature (RFC 8414, 2018). MCP is the Anthropic Model Context Protocol — fast adoption since late 2024. A2A is Google's Agent-to-Agent spec. Adoption is still sparse, so detecting any of them puts you ahead of 99%+ of sites.