# MCP Server Inspector

> MCP Server Inspector is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-26).

Inspects a remote MCP server to reveal its name, version, protocol, capabilities, auth requirements, and available tools without executing any of them.

## Facts

- Endpoint: GET https://agent-data-tools.revmesh2074.workers.dev/mcp/inspect?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Provider: agent-data-tools.revmesh2074.workers.dev
- Website: https://agent-data-tools.revmesh2074.workers.dev
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-data-tools-revmesh2074-workers-dev-mcp-server-inspector-a7bd40ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JnBewU_xHkhhpC-FOLxpz

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-data-tools-revmesh2074-workers-dev-mcp-server-inspector-a7bd40ac
```

Example prompt: Can you inspect the MCP server at https://my-agent-backend.example.com/mcp and tell me what tools it exposes, whether it needs authentication, and what protocol version it's running?

## When to prefer this

Use this endpoint when you need a read-only, non-destructive probe of any MCP server before connecting to it or configuring an agent to use it. It is the right choice when you want to audit tools, check auth requirements, or verify protocol compliance without risking any side effects from tool execution. Prefer it over manual curl-based inspection or writing custom MCP client code.

## Known failure modes

- Server unreachable — reachable: false, no further data returned
- Server returns 401/403 — authRequired: true, tools list may be empty
- Server does not implement streamable-HTTP MCP transport — status error or empty response
- Malformed MCP URL provided — invalid URL error
- Server responds but fails the initialize handshake — may return partial metadata only
- Timeout if the server is slow to respond

## How this service works

MCP server check, inspector. 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.

## Output

Returns a JSON object with: whether the server is reachable, its HTTP status, server name and version, MCP protocol version, transport type, a list of declared capabilities, an array of tools (each with name, title, description, input parameter names, and required fields), whether authentication is required, plus counts of available prompts and resources.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "examples": [
        "https://mcp.deepwiki.com/mcp"
       ],
       "description": "The MCP server's streamable-HTTP URL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "tools": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "type": "string"
         },
         "title": {},
         "params": {
          "type": "array",
          "items": {
           "type": "string"
          }
         },
         "required": {
          "type": "array",
          "items": {
           "type": "string"
          }
         },
         "description": {
          "type": "string"
         }
        }
       }
      },
      "server": {
       "type": "object",
       "properties": {
        "name": {
         "type": "string"
        },
        "version": {
         "type": "string"
        }
       }
      },
      "status": {
       "type": "number"
      },
      "reachable": {
       "type": "boolean"
      },
      "toolCount": {
       "type": "number"
      },
      "transport": {
       "type": "string"
      },
      "promptCount": {
       "type": "number"
      },
      "authRequired": {
       "type": "boolean"
      },
      "capabilities": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "resourceCount": {
       "type": "number"
      },
      "protocolVersion": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-data-tools-revmesh2074-workers-dev-mcp-server-inspector-a7bd40ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-data-tools.revmesh2074.workers.dev](https://www.zero.xyz/host/agent-data-tools.revmesh2074.workers.dev/llms.txt)