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MCP Server Inspector
x402
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.
Price / call$0.01
Success—
StatusUnknown
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.
Example use cases
Vetting a third-party MCP server
“Before I add this MCP server at https://tools.someprovider.io/mcp to my agent, can you inspect it and tell me what tools it has, whether it requires sign-in, and if it responds correctly to an initialize handshake?”
Post-deploy sanity check
“I just deployed my MCP server at https://api.myapp.com/mcp — can you inspect it and confirm it's reachable, lists the tools I expect, and reports the right protocol version?”
Auditing an unfamiliar agent tool
“Someone shared an MCP server URL with me: https://shared-tools.example.com/mcp — can you probe it and give me its full tool list with descriptions and parameters, plus whether it demands authentication?”
Technical details
Endpoint
GEThttps://agent-data-tools.revmesh2074.workers.dev/mcp/inspect?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
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": "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"
}
}Tags
x402
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