Provider Error - Trouble Finding Resource

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After adding an API key and adding a custom model, I get the following error when trying to send a message in the chat:

Provider Error: We're having trouble finding the resource you requested. If the problem persists, please contact support.

Steps to Reproduce

  1. Add an API key
  2. Add a model
  3. Try to use the chat feature with any model (not just the new one)

Expected Behavior

I should be able to get a response when I use any model in the chat.

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 2.6.0-pre.17.patch.0
VSCode Version: 1.105.1
Commit: 3ee0da9a9ba05aaf40ff30a6b33484851211ae50
Date: 2026-02-19T00:01:44.334Z
Build Type: Stable
Release Track: Nightly
Electron: 39.4.0
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.2.0

For AI issues: which model did you use?

All

For AI issues: add Request ID with privacy disabled

Request ID: 6b85d596-5a12-436d-a826-e035752ad3ab
{“error”:“ERROR_PROVIDER_ERROR”,“details”:{“title”:“Provider Error”,“detail”:“We’re having trouble finding the resource you requested. If the problem persists, please contact support.”,“isRetryable”:false,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:true}
Provider Error We’re having trouble finding the resource you requested. If the problem persists, please contact support.
dJn: Provider Error We’re having trouble finding the resource you requested. If the problem persists, please contact support.
at $FA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33475:14818)
at FFA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33475:13806)
at jFA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33476:5454)
at zpl.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33476:9595)
at async wst.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45715:7758)
at async x7l.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45769:8881)
at async x7l.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45769:9852)
at async pNe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33519:15853)
at async Object._i [as onSubmit] (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:44744:4782)
at async vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:44718:61855

Does this stop you from using Cursor

No - Cursor works, but with this issue

Hey there.

It looks (in the backend) like you’ve selected Composer 1.5 as a model but are using a custom endpoint, which isn’t going to work (Composer 1.5 is only served from Cursor’s backend).

Was that the intention? Which models do you expect to be served via your custom endpoint?

I would have been trying the kimi-k2.5 model and decided to try debugging by attempting to use other models. Here’s the error response ID from a request I just made with the custom model:

Request ID: f8d7ee36-338c-4548-aab3-bc7ea14040fa
{"error":"ERROR_PROVIDER_ERROR","details":{"title":"Provider Error","detail":"We're having trouble finding the resource you requested. If the problem persists, please contact support.","isRetryable":false,"additionalInfo":{},"buttons":[],"planChoices":[]},"isExpected":true}
Provider Error We're having trouble finding the resource you requested. If the problem persists, please contact support.
dJn: Provider Error We're having trouble finding the resource you requested. If the problem persists, please contact support.
    at $FA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33475:14818)
    at FFA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33475:13806)
    at jFA (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33476:5454)
    at zpl.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33476:9595)
    at async wst.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45715:7758)
    at async x7l.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45769:8881)
    at async x7l.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:45769:9852)
    at async pNe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:33519:15853)
    at async _i (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:44744:4782)

@Colin any idea on how I can get around this issue?