GOOGLE A2A & MCP PROTOCOL VALIDATOR

A2A Agent Card (/.well-known/agent.json) & MCP Manifest Validator

Inspect, compare, and validate Google Agent-to-Agent (A2A) discovery cards, Anthropic Streamable HTTP MCP manifests, and OpenAPI 3.1 tool schemas.

Protocol Standard Discovery Path Transport / Format Primary Agent Consumers Live Status
Google A2A Agent Card /.well-known/agent.json JSON Skills & MIME Modes Multi-agent orchestrators & A2A routers 200 OK
Anthropic MCP Discovery /.well-known/mcp JSON-RPC 2.0 Streamable HTTP (POST /mcp) Cursor, Claude Desktop, Claude Code, VS Code 200 OK
llmstxt.org Corpus /llms.txt & /llms-full.txt Markdown + Accept: text/markdown ChatGPT Search, Perplexity, Claude SearchBot 200 OK
OpenAPI 3.1 Spec /openapi.json REST JSON + RFC 9457 Problem Details Function-calling LLMs & CI SDK generators 200 OK

Google A2A Protocol (/.well-known/agent.json)

{
  "schemaVersion": "1.0",
  "name": "AgenticPulse Auditor Agent",
  "url": "https://neatjar.com/agentic-pulse/",
  "version": "1.0.0",
  "defaultInputModes": ["application/json", "text/plain"],
  "defaultOutputModes": ["application/json", "text/markdown"],
  "authentication": { "schemes": ["none"] }
}

MCP Server Discovery (/.well-known/mcp)

{
  "mcpVersion": "2025.3.26",
  "protocolVersion": "2024.9.5",
  "name": "agentic-pulse-mcp",
  "transport": {
    "type": "streamable-http",
    "url": "https://neatjar.com/agentic-pulse/mcp"
  }
}