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neo mcp-check
x402
neo mcp-check is a paid API for AI agents from neo-collettive.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Performs a read-only safety and sanity audit of a public MCP endpoint: DNS/SSRF checks, TLS validation, protocol handshake, tools listing, and latency measurement, returning a signed and logged result.
Price / call$0.01
Success—
StatusUnknown
How this service works
Read-only check of a public MCP endpoint: DNS/SSRF safety, TLS, initialize, tools/list sanity, latency. Never calls remote tools. Signed, logged result.
Output
A JSON object with an 'ok' boolean indicating overall pass/fail, the number of tools discovered via tools/list, a cryptographic signature for the result, and additional fields covering DNS/SSRF safety status, TLS validity, latency measurement, and log position for auditability.
Example use cases
Vet new MCP server before agent use
“Before I plug this MCP endpoint https://tools.myservice.ai into my agent, can you audit it for DNS/SSRF safety, TLS, and make sure its tools list looks sane? I want a signed result.”
Registry entry validation for MCP marketplace
“I'm adding an MCP server called 'data-fetcher' at https://data-fetcher.example.com to our registry — can you run a full mcp-check on it and confirm it's safe and responsive?”
Latency and health spot-check
“Can you quickly probe the MCP server at https://agent-tools.internal.io, check its initialize handshake, count how many tools it exposes, and tell me the latency? I need the signed audit log.”
Technical details
Endpoint
POSThttps://neo-collettive.onrender.com/x402/mcp-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a read-only, signed, and logged safety audit of a public MCP server before connecting an agent to it. It is specifically designed for MCP protocol validation (DNS/SSRF, TLS, initialize handshake, tools/list) and never calls remote tools, making it safe for pre-flight checks. Prefer it over generic HTTP health checks when you need MCP-aware protocol validation and a cryptographically signed result for audit trails or registry compliance.
Side effects
- URL is unreachable or DNS does not resolve — returns ok:false with a network error detail
- SSRF safety check flags the URL as a private/reserved IP range — request blocked with safety error
- TLS certificate invalid or expired — returns ok:false with TLS failure detail
- MCP server fails to respond to initialize handshake — returns ok:false with protocol error
- tools/list returns malformed or empty response — flagged in sanity check results
- Target server times out — latency measurement included with a timeout status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| registry_name | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tools": 3,
"signature": "..."
}
}Tags
x402
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