
Whois JSON API provides a REST API that allows developers to retrieve accurate WHOIS data for domains in a structured JSON format. This API supports various programming languages, including Python, JavaScript, and PHP, and enables users to perform bulk WHOIS queries and check URL availability in real-time. It is designed for high-performance teams, ensuring high availability and low latency access from global locations, making it suitable for businesses that require reliable domain data integration.
Notable features include support for over 2000 top-level domains (TLDs), a sophisticated parsi…
Whois JSON API is a US-based developer tool (founded 2021-11-02) that provides a structured REST WHOIS endpoint — a narrow, utility product that maps cleanly to developer and security workflows. As a revenue-stage business it shows a recurring base (MRR $1,247) and recent positive momentum (-9%), but absolute scale is modest ($1,059 last 30 days).
The gap between MRR $1,247 and last-30-day revenue $1,059 is a key signal to clarify — it may reflect metered usage, billing timing, or churn and should be investigated. Near-term priorities for the founder are straightforward: deepen retention, make the API’s reliability and accuracy a visible selling point, and diversify acquisition channels so growth scales beyond the current modest base. For someone evaluating the opportunity, this is a small, real revenue stream in a niche infra API — track retention, unit economics, and how defensible the data sourcing is over time.
A judgment from project data — not a user review.