[GH-ISSUE #16349] issue: API of OpenWebUI not in OpenAI compatible format #17869

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opened 2026-04-19 23:45:54 -05:00 by GiteaMirror · 0 comments
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Originally created by @jsivu on GitHub (Aug 7, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/16349

Check Existing Issues

  • I have searched the existing issues and discussions.
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

v0.6.18

Ollama Version (if applicable)

No response

Operating System

Rocky Linux

Browser (if applicable)

No response

Confirmation

  • I have read and followed all instructions in README.md.
  • I am using the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

My OpenWebUI instance is running on http://192.168.254.42:8080. For an open ai compatible endpoint the endpoint post http://192.168.254.42:8080/v1/chat/completions should return the chat completion. Generally the api works but only with curl -X POST http://192.168.254.42:8080/api/chat/completions, so without the v1. For connecting OpenWebUI with services that expect OpenAI compatible Endpoints, that's really a problem.

Actual Behavior

That's the output for the call

curl -X POST http://192.168.254.42:8080/api/v1/chat/completions
-H "Content-Type: application/json"
-H "Authorization: Bearer sk-123 (real API KEY hidden)" \
-d '{
"model": "coding-assistent",
"messages": [
{
"role": "user",
"content": "Wie kann ich eine SQL-Abfrage schreiben, um alle Benutzer aus einer Datenbank zu selektieren?"
}
]
}'

{"detail":"Method Not Allowed"}%

Steps to Reproduce

  1. Run OpenWebUI with docker in production mode
  2. Make API accessible via the UI
  3. Try OpenAI compatible Endpoints

Logs & Screenshots

Logs from the OpenWebUI container 2025-08-07 10:51:45.957 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 192.168.200.125:51757 - "GET /api/v1/chats/?page=2 HTTP/1.1" 200 - {}

2025-08-07 10:51:45.967 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 192.168.200.125:51757 - "GET /api/v1/folders/ HTTP/1.1" 200 - {}

2025-08-07 10:51:47.458 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 172.20.200.134:54983 - "POST /api/v1/chat/completions HTTP/1.1" 405 - {}

Additional Information

No response

Originally created by @jsivu on GitHub (Aug 7, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/16349 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version v0.6.18 ### Ollama Version (if applicable) _No response_ ### Operating System Rocky Linux ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior My OpenWebUI instance is running on http://192.168.254.42:8080. For an open ai compatible endpoint the endpoint post http://192.168.254.42:8080/v1/chat/completions should return the chat completion. Generally the api works but only with curl -X POST http://192.168.254.42:8080/api/chat/completions, so without the v1. For connecting OpenWebUI with services that expect OpenAI compatible Endpoints, that's really a problem. ### Actual Behavior That's the output for the call curl -X POST http://192.168.254.42:8080/api/v1/chat/completions \ -H "Content-Type: application/json" \ -H "Authorization: Bearer sk-123 (real API KEY hidden)" \ -d '{ "model": "coding-assistent", "messages": [ { "role": "user", "content": "Wie kann ich eine SQL-Abfrage schreiben, um alle Benutzer aus einer Datenbank zu selektieren?" } ] }' {"detail":"Method Not Allowed"}% ### Steps to Reproduce 1. Run OpenWebUI with docker in production mode 2. Make API accessible via the UI 3. Try OpenAI compatible Endpoints ### Logs & Screenshots Logs from the OpenWebUI container 2025-08-07 10:51:45.957 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 192.168.200.125:51757 - "GET /api/v1/chats/?page=2 HTTP/1.1" 200 - {} 2025-08-07 10:51:45.967 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 192.168.200.125:51757 - "GET /api/v1/folders/ HTTP/1.1" 200 - {} 2025-08-07 10:51:47.458 | INFO | uvicorn.protocols.http.httptools_impl:send:476 - 172.20.200.134:54983 - "POST /api/v1/chat/completions HTTP/1.1" 405 - {} ### Additional Information _No response_
GiteaMirror added the bug label 2026-04-19 23:45:54 -05:00
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Reference: github-starred/open-webui#17869