DNS lookup endpoint with x402 micropayment gating
What it does
This endpoint at netintel-production-440c.up.railway.app/dns/lookup provides DNS lookup functionality behind an x402 payment challenge. The service is live and responds with HTTP 402 to unauthenticated GET requests, indicating it follows the x402 protocol for per-call micropayments. The endpoint path strongly suggests it performs DNS record lookups (A, AAAA, MX, CNAME, etc.) given a domain name.
Very little documentation is available. The hosting provider is Railway, and no OpenAPI spec, docs page, README, or pricing page could be found. The x402 challenge was returned but the challenge body was empty, meaning pricing details (token, amount, network) could not be determined from the probe. Without further documentation, the exact query parameters, supported record types, and response format remain unknown.
Given the sparse information, this listing is largely inferred from the endpoint path and the presence of a live 402 challenge. Users should expect to experiment with query parameters (e.g., ?domain=example.com or ?name=example.com&type=A) and inspect the full 402 response headers to determine payment requirements.
Capabilities
Use cases
- —Resolving DNS records for a given domain programmatically
- —Checking MX or CNAME records as part of an automated workflow
- —Network reconnaissance or domain intelligence gathering
- —Validating domain configurations from an agent pipeline
Fit
Best for
- —Agents needing on-demand DNS lookups via a simple HTTP API
- —Workflows requiring pay-per-call DNS resolution without API key management
- —Automated domain verification or monitoring tasks
Not for
- —High-volume bulk DNS resolution (unknown rate limits and per-call cost)
- —Users who need detailed documentation or guaranteed SLAs
- —Free DNS lookups (this endpoint requires x402 payment)
Quick start
curl -i https://netintel-production-440c.up.railway.app/dns/lookup?domain=example.com
# Returns 402 with x402 payment challenge; complete payment to receive DNS results.Endpoint
Quality
The endpoint is live (returns 402), but the x402 challenge body is empty, no documentation exists, no OpenAPI schema is available, and pricing/parameters are entirely unknown. This is effectively a stub listing based on the URL path and protocol.
Warnings
- —x402 challenge body is empty — pricing (token, amount, network) could not be determined
- —No documentation, OpenAPI spec, or README found at any crawled path
- —Query parameters and response schema are unknown and fully inferred from the endpoint path
- —Root domain returns 404; no landing page or provider info available
Citations
- —Endpoint returns HTTP 402 on GET, confirming it is live and x402-gatedhttps://netintel-production-440c.up.railway.app/dns/lookup
- —No docs, API spec, pricing, or README pages exist on the originhttps://netintel-production-440c.up.railway.app/docs