API Documentation

Gated REST API for Nexabit Network Utilities. Browser diagnostics require no account. Programmatic access uses logged-in developer accounts with monthly API plans — view pricing, log in to create keys. Unauthenticated API requests are rate limited per IP.

Getting Started

Same-origin API on Vercel (recommended)

Base URL: https://network.nexabitit.com/api/v1

API root: /api

Health: /api/v1/health

Serverless functions: 6 consolidated handlers (within Vercel Hobby 12-function limit).

Authentication: API key via X-API-Key header. Log in to create a key · View API plans

Endpoints

GET/api/v1/network/ip-lookup?ip={ip}

IP geolocation lookup

GET/api/v1/network/port-check?host={host}&port={port}

TCP port check

GET/api/v1/network/ping?host={host}

ICMP ping (serverless: returns notice)

GET/api/v1/network/traceroute?host={host}

Traceroute (serverless: returns notice)

GET/api/v1/network/whois?query={query}

WHOIS lookup

GET/api/v1/network/asn-lookup?query={query}

ASN lookup

GET/api/v1/network/http-headers?url={url}

HTTP security headers analysis

GET/api/v1/dns/lookup?domain={domain}&type={type}

DNS record lookup

GET/api/v1/dns/spf?domain={domain}

SPF record check

GET/api/v1/dns/dkim?domain={domain}&selector={selector}

DKIM check

GET/api/v1/dns/dmarc?domain={domain}

DMARC check

GET/api/v1/dns/propagation?domain={domain}&type={type}

DNS propagation

POST/api/v1/dns/bulk

Bulk DNS lookup (JSON body: domains[], type?)

GET/api/v1/ssl/check?hostname={hostname}

SSL certificate check

GET/api/v1/ssl/expiry?hostname={hostname}

SSL expiry check

POST/api/v1/dev/webhook-test

Webhook HTTP test

GET/api/v1/account/tiers

List API rate tiers

POST/api/v1/account/keys

Create API key (requires DATABASE_URL)

GET/api/v1/account/verify

Verify API key (X-API-Key header)

GET/api/v1/account/usage

API key usage stats (7 days)

GET/api/v1/health

Health check