adsb.in

What is it

BharatRadar is India's first community-driven open ADS-B flight tracking network hosted on the domain adsb.in. Its core mission is to aggregate civilian ADS-B receiver data to provide free, open flight data services for India's airspace to the general public and developers. The entire project is open-source, and it also offers an interactive bot to meet general users' query needs.

Core Features & Pricing

Its core features include:

• Online real-time flight map, where you can check the position, altitude, speed and other parameters of any aircraft
• Open REST API for real-time and historical flight data, callable without authentication
• Multilateration (MLAT) to track aircraft not equipped with ADS-B transponders
• Support for general users to set up low-cost receivers to contribute data and expand network coverage

-配套Telegram bot that lets you query flight status, airport schedules, route information and more

Pricing uses a tiered rate-limiting model: the free basic tier offers 5 requests per minute and 50 requests per day. Data contributors can increase their rate limits based on their contribution level, and top contributors get up to 120 requests per minute with no daily limit — no paid subscription required.

Experience Summary

Strengths: It has a very high level of data openness, no barrier to entry for basic use. The open-source model and pre-compiled images lower the cost of participation for new contributors, and its features cater to both developers and general aviation enthusiasts.

Weaknesses: It only covers Indian airspace, the free quota for regular users is very limited, it is not very useful for non-Indian users, and there is no Chinese language support.

Chinese users cannot access this website directly; a proxy connection is required. This site is ideal for researchers of Indian aviation data, aviation application developers, and aviation enthusiasts interested in Indian flights.