How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Analytics Token API returns HTTP 403 – request account/API activation check

calendar_today September 18, 2026 person @Anand_Sajankar Anand Sajankar domain upstox

Hi @KULVINDER_55702715 this might be handy Market Data Feed V3 WebSocket returns 403 Forbidden on upgrade despite successful authorize Developer API Hi @SATYAM_2286284 Some common causes for 403 Forbidden during the WebSocket handshake are: Using the authorized_redirect_uri more than once. The URL returned by the authorize endpoint is single-use and a fresh one must be generated for every new WebSocket connection. Reusing an existing WebSocket connection without closing it properly before establishing a new one.

open_in_new Read original post