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MCP Server Inspector
x402
MCP Server Inspector is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Connects to a remote MCP server as a client and returns its metadata — name, version, instructions, capabilities, and full tool list with descriptions and parameters — without invoking any tool.
Price / call$0.005
Success—
StatusUnknown
How this service works
Connect to a remote MCP server (Streamable HTTP) as a client and return its name, version, instructions, capabilities and tool list with descriptions and parameters, without calling any tool. Know what an MCP server offers before trusting it.
Output
A JSON object containing: the server's name and version, MCP protocol version, accessibility boolean, list of capabilities (e.g. 'experimental', 'prompts'), full list of tools with each tool's name, description, required fields, and parameter names, plus the server's instructions text and total tool count.
Example use cases
Audit unknown MCP server before use
“I found an MCP server at https://mcp.example.com/mcp and I want to know what it offers before hooking my agent up to it — can you inspect it and list all its tools, capabilities, and instructions without triggering anything?”
Compare tools across two MCP servers
“Inspect the MCP server at https://mcp.myservice.io/api and tell me all the tools it has with their parameters — I want to compare it against another server to decide which one my agent should use.”
Verify MCP server version and protocol
“Can you check what version and MCP protocol the server at https://api.partner.com/mcp is running, and confirm it's accessible and what capabilities it advertises?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/mcp-inspect?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to discover what a remote MCP server offers before connecting an agent to it — especially for untrusted or unfamiliar servers. It is safer than calling tools directly because it only reads metadata. Prefer it over manual HTTP probing or SDK-based inspection when you want a structured, normalized view of tools and capabilities in a single call.
Side effects
- Server unreachable or returns non-MCP response — accessible: false with no tool data
- Invalid or malformed URL — input validation error
- Server requires authentication — connection refused or empty capability set
- Timeout if remote MCP server is slow to respond
- Non-HTTP MCP transport not supported (only Streamable HTTP)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://mcp.deepwiki.com/mcp",
"tools": [
{
"name": "ask_wiki_question",
"required": [
"repoName",
"question"
],
"parameters": [
"question",
"repoName"
],
"description": "Ask any question about a GitHub repository's codebase and get an AI-powered answer\ngrounded in its DeepWiki."
},
{
"name": "read_wiki_contents",
"required": [
"repoName"
],
"parameters": [
"repoName"
],
"description": "View documentation about a GitHub repository."
}
],
"server": {
"name": "DeepWiki",
"version": "2.14.3"
},
"protocol": "2025-06-18",
"accessible": true,
"total_tools": 3,
"capabilities": [
"experimental",
"prompts"
],
"instructions": "DeepWiki MCP provides AI-powered documentation for GitHub repositories.\n\nAvailable tools:\n- read_wiki_structure: Get a list of documentation topics for a repository\n- read_wiki_contents: View full documentation about a repository\n- ask_wiki_question: Ask any question about a repository's codebase an…"
}
}Tags
x402
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