# Not able to find sensor\_index for API data get request

**URL:** <https://community.purpleair.com/t/not-able-to-find-sensor-index-for-api-data-get-request/2845>\
**Category:** API\
**Created:** [November 30, 2022, 8:30am UTC](https://community.purpleair.com/t/not-able-to-find-sensor-index-for-api-data-get-request/2845 "2022-11-30T08:30:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sathish](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/sathish/32/2687_2.png) [@Sathish](https://community.purpleair.com/u/Sathish)\
**Post date:** [November 30, 2022, 8:30am UTC](https://community.purpleair.com/t/not-able-to-find-sensor-index-for-api-data-get-request/2845/1 "2022-11-30T08:30:57Z")

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As given in the manual for data downloading data using API one needs sensor\_index but I am unable to find that anywhere. The website says that “The `sensor_index` as found in the JSON for this specific sensor.” but while opening the JSON details of the sensor I’m encountering a Server Error.

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**Author:** ![Ethan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/ethan/32/177_2.png) [@Ethan](https://community.purpleair.com/u/Ethan)\
**Post date:** [November 30, 2022, 7:40pm UTC](https://community.purpleair.com/t/not-able-to-find-sensor-index-for-api-data-get-request/2845/2 "2022-11-30T19:40:38Z")

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Hi @Sathish, this article should help you find the sensor index: [Making API Calls with the PurpleAir API](https://community.purpleair.com/t/making-api-calls-with-the-purpleair-api/180#the-sensor-index-3).