# 404 accessing /who/calculation API **Category:** [Growth Charts](https://forum.rcpch.tech/c/rcpch-digital-growth-charts/6) **Created:** 2025-08-18 12:29 UTC **Views:** 22 **Replies:** 1 **URL:** https://forum.rcpch.tech/t/404-accessing-who-calculation-api/573 --- ## Post #1 by @indu I can access and populate graph using uk-who/calculation api’s but we want to implementing growth chart for Australian users and my understanding we are using WHO standards. When I try to access /who/calculation I am getting 404. I remember seeing some data sets are not uploaded? Is this because of that? I am using services in here , https://api.rcpch.ac.uk/growth/v1 --- ## Post #2 by @michael.barton Thanks for reporting @indu! Sorry about that, our API management instance had not been correctly updated to include that endpoint. It should work now. --- **Canonical:** https://forum.rcpch.tech/t/404-accessing-who-calculation-api/573 **Original content:** https://forum.rcpch.tech/t/404-accessing-who-calculation-api/573