# 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.

## What it checks

- **OAuth Discovery** (RFC 8414) — `/.well-known/oauth-authorization-server`
- **MCP Server Card** (Anthropic) — `/.well-known/mcp.json`
- **A2A Agent Card** (Google) — `/.well-known/agent.json` with `/.well-known/a2a.json` fallback

## How to use

1. Enter the URL or origin of the site to inspect
2. The tool probes the three well-known endpoints in parallel
3. Each detected protocol shows the parsed metadata (issuer, version, capabilities)
4. Use the result to know which AI agents can auto-discover and connect to your service