MCP server inspector: tools, auth and protocol check

$0.01 per call · failed calls are never charged · no account or API key needed

Inspect a remote MCP server over streamable HTTP: whether it answers initialize, its name, version, protocol version and capabilities, whether it needs sign-in (OAuth or another 401 challenge), and its tools with names, titles, descriptions and input parameters, plus prompt and resource counts. Read-only: it lists, never calls a tool. Use to vet an MCP server before adding it to an agent, or to check your own after a deploy.

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Try it with your own inputs

The MCP server's streamable-HTTP URL

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
url (required)stringThe MCP server's streamable-HTTP URL

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/mcp/inspect?url=https%3A%2F%2Fmcp.deepwiki.com%2Fmcp"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/mcp/inspect?url=https%3A%2F%2Fmcp.deepwiki.com%2Fmcp&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "url": "https://mcp.deepwiki.com/mcp",
  "reachable": true,
  "status": 200,
  "authRequired": false,
  "server": {
    "name": "DeepWiki",
    "version": "2.14.3"
  },
  "protocolVersion": "2025-06-18",
  "capabilities": [
    "prompts",
    "resources",
    "tools"
  ],
  "transport": "sse",
  "toolCount": 3,
  "tools": [
    {
      "name": "read_wiki_structure",
      "title": null,
      "description": "Get a list of documentation topics for a GitHub repository",
      "params": [
        "repoName"
      ],
      "required": [
        "repoName"
      ]
    }
  ],
  "promptCount": 0,
  "resourceCount": 0
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is mcp_inspect, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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