# Enterprise BYOK + AI Gateway: built-ins ignore Override Base URL; need Anthropic override

**URL:** <https://forum.cursor.com/t/enterprise-byok-ai-gateway-built-ins-ignore-override-base-url-need-anthropic-override/175824>\
**Category:** Feature Requests\
**Tags:** byok, teams-enterprise, anthropic\
**Created:** [October 22, 2026, 8:31pm UTC](https://forum.cursor.com/t/enterprise-byok-ai-gateway-built-ins-ignore-override-base-url-need-anthropic-override/175824 "2026-10-22T20:31:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Diego\_Parima](https://avatars.discourse-cdn.com/v4/letter/d/4491bb/32.png) [@Diego\_Parima](https://forum.cursor.com/u/Diego_Parima)\
**Post date:** [October 22, 2026, 8:31pm UTC](https://forum.cursor.com/t/enterprise-byok-ai-gateway-built-ins-ignore-override-base-url-need-anthropic-override/175824/1 "2026-10-22T20:31:59Z")

</div>

### Feature request for product/service

Cursor IDE

### Describe the request

### Feature request for product/service

Cursor IDE — Bring Your Own Key / Override OpenAI Base URL (Enterprise)

### Describe the request

I’m on Cursor Enterprise (Trilogy Cursor; same email as my Cursor account). I use Cursor alongside Claude and OpenAI. Separately, I want to route as much local Chat/Agent inference as possible through our TrueFoundry AI Gateway (Maat PAT + Override OpenAI Base URL to the company cursor/v1 gateway path) to reduce Cursor-billed usage, while still keeping Cursor’s own models when I choose them.

**What works:** a custom model whose ID is not in Cursor’s catalog hits the gateway. I verified this with matching usage on TrueFoundry and the Cursor Enterprise token-rate line (0.25 USD per million tokens), not full model cost.

**What breaks:** when Cursor adds a catalog/built-in model with the same or similar ID (e.g. Kimi K3 / kimi-\*), Override OpenAI Base URL does not apply. Staff confirmed built-in Kimi is Cursor-hosted and the override is ignored. I then get 404 / “resource not found” and traffic never reaches the gateway. A custom model that worked for weeks (e.g. kimi-k3-fast via gateway) can stop working after a catalog change with no BYOK changelog. Claude via the same gateway is also blocked because there is no Override Anthropic Base URL.

**Ask:**

1. Route by selection: custom/gateway models → Override Base URL + key; Cursor catalog models → Cursor when I pick them.
2. Add Override Anthropic Base URL so Claude can optionally go through a company gateway the same way OpenAI-compatible models can.
3. Stop reserving provider model IDs so BYOK cannot use the exact ID the gateway expects when a similarly named built-in exists.
4. Treat Enterprise gateway BYOK as a first-class path (stable custom models, clear docs), not something that silently breaks when new built-ins ship.

**Related threads (search by title; new-user link limit):**

- BYOK + custom base URL: built-in Kimi K3 and K2.7-Code return 404, but K2.7-Code-Highspeed works
- Request to override Anthropic Base URL
- Built-in Kimi K3 + Moonshot BYOK fails… name is reserved
- When will Cursor fully support BYOK?

Happy to share Request IDs and a redacted config. Goal is optional cost control via gateway, not replacing Cursor / Claude / OpenAI.