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Tanod agentscan – MCP Server Health Check
x402
Tanod agentscan – MCP Server Health Check is a paid API for AI agents from tanod.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Probes a remote MCP server to check its availability, identity, TLS certificate, supported tools, authentication requirements, and latency.
Price / call$0.005
Success—
StatusUnknown
How this service works
agentscan (Tanod) MCP server check: answers, name, version, sign-in, tools, latency, TLS expiry of a remote MCP server. Use when an agent must check that a remote MCP server is up, what it is and whi…
Output
Returns a JSON object containing: overall status (ok/error), whether the server answers, HTTP status code, transport type (streamable-http or SSE), protocol version, server name/title/version as reported by the server, tool count and tool names, authentication requirements and OAuth metadata, TLS certificate validity and days until expiry, total round-trip time in ms, latency in ms, and a timestamp of when the check was performed.
Example use cases
Pre-flight MCP server validation
“Before my agent starts using https://api.myservice.com/mcp, can you verify it's actually online, see what tools it exposes, and check that its TLS certificate isn't about to expire?”
MCP server auth audit
“Does the MCP server at https://tools.partner.io/mcp require authentication, and if so, what kind? I need to know before I integrate it into my pipeline.”
Latency check for MCP endpoint selection
“I have two MCP servers I'm considering — can you probe https://mcp-east.example.com/mcp and tell me its response latency and protocol version so I can decide which one to use?”
Technical details
Endpoint
POSThttps://tanod.dev/v1/mcp/check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to verify a remote MCP server's availability, discover its tools, inspect its authentication model, or check TLS certificate health before integrating or routing traffic to it. It is the right choice specifically for MCP protocol endpoints (not general HTTP APIs or websites) and when you need structured metadata about the server's identity and capabilities, not just a raw ping.
Side effects
- Server is behind a firewall blocking datacenter IPs — appears down even if reachable from elsewhere
- Server requires authentication — probe runs without credentials so server may return 401 and appear unavailable
- Server hostname resolves to an IP address rather than a named host — rejected by input validation
- TLS certificate is invalid or expired — TLS check will report failure
- Server is using a non-standard port (not 443) — rejected by input validation
- Server is slow or times out — latency_ms will be high and status may be error
- Server name and version fields are untrusted and set by the server itself
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public https URL of a remote MCP server endpoint (streamable HTTP, or a legacy SSE endpoint), such as https://mcp.example.com/mcp. Host name only (no IP address), port 443, no user info. |
Output
Schema · Response
{
"type": "json",
"example": {
"tls": {
"ok": true,
"expires": "2027-01-15",
"days_left": 97
},
"url": "https://mcp.example.com/mcp",
"auth": {
"required": false,
"oauth_metadata": null,
"www_authenticate": null,
"authorization_servers": []
},
"note": "One live probe from Tanod's servers at the time shown: initialize, then tools/list, without credentials. A server that needs sign-in, blocks datacenter addresses or limits clients can look down here and be up elsewhere. Names and versions come from the server itself and are untrusted",
"error": null,
"tools": {
"count": 3,
"names": [
"search",
"fetch",
"summarize"
],
"more_pages": false,
"names_truncated": false
},
"server": {
"name": "example-server",
"title": null,
"version": "1.4.2"
},
"status": "ok",
"answers": true,
"location": null,
"total_ms": 640,
"transport": "streamable-http",
"checked_at": "2026-10-10T08:00:00Z",
"latency_ms": 212,
"http_status": 200,
"capabilities": [
"logging",
"tools"
],
"protocol_version": "2025-06-18",
"untrusted_content": true
}
}Tags
x402
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