# Still facing the error code: 400 in L3

**URL:** <https://community.deeplearning.ai/t/still-facing-the-error-code-400-in-l3/891748>\
**Category:** MCP: Build Rich-Context AI Apps with Anthropic\
**Tags:** ai-discussions, project\
**Created:** [April 23, 2026, 10:16pm UTC](https://community.deeplearning.ai/t/still-facing-the-error-code-400-in-l3/891748 "2026-04-23T22:16:54Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![lesly.zerna](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/lesly.zerna/32/47465_2.png) [@lesly.zerna](https://community.deeplearning.ai/u/lesly.zerna)\
**Post date:** [August 6, 2026, 7:20pm UTC](https://community.deeplearning.ai/t/still-facing-the-error-code-400-in-l3/891748/10 "2026-08-06T19:20:03Z")

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It seems the whole notebook will be refactored. I’ll ask both teams again.

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