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MCP Server Inspector
x402
MCP Server Inspector is a paid API for AI agents from mcp.dropenginehq.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Read-only health check and tool-schema inspection for a public MCP (Model Context Protocol) endpoint, returning reachability status, tool count, and schema details without invoking any tools.
Price / call$0.01
Success—
StatusUnknown
How this service works
Read-only health and tool-schema inspection for a public MCP endpoint.
Output
Returns a JSON object indicating whether the MCP endpoint is reachable, how many tools it exposes, the tool schemas themselves, and flags confirming this was a read-only inspection where no tools were actually invoked.
Example use cases
Pre-integration MCP server audit
“Before I wire up this new MCP endpoint at https://mcp.partnertool.ai/server to my agent pipeline, can you inspect it to confirm it's reachable and show me the full list of tools it exposes?”
Validate expected tools before payment
“I'm about to pay to use an MCP server at https://mcp.thirdparty.com/api — can you first check that it actually has the tools 'image_generate', 'ocr', and 'translate' listed, without calling any of them?”
Agent fleet health check on MCP endpoint
“Check if our internal MCP server at https://mcp.dropenginehq.com/internal is still reachable and report back how many tools are currently registered on it.”
Technical details
Endpoint
POSThttps://mcp.dropenginehq.com/api/mcp-server-inspect?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify the health, reachability, and tool-schema of a public MCP server before integrating it into an agent workflow, making a payment for its services, or routing tasks to it — especially when you want read-only inspection guarantees that no tools will be accidentally invoked during the probe. Prefer this over generic HTTP ping tools when you need MCP-protocol-aware inspection including tool enumeration and schema extraction.
Side effects
- Endpoint URL is unreachable or times out — status returned as 'unreachable'
- Invalid or malformed URI provided — validation error before request is made
- MCP server returns a non-standard response not conforming to MCP protocol
- Expected tools not found on server — mismatch reported in response
- Tool count returns zero if server is reachable but exposes no tools
- Rate limiting or upstream errors from the target MCP server
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| endpoint | string | |
| expected_tools | array |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "reachable",
"tool_count": 4,
"read_only_inspection": true,
"tools_were_not_called": true
}
}Tags
x402
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