[GH-ISSUE #15471] issue: The api calls the model, but cannot call the tool (mcp) #33103

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opened 2026-04-25 06:58:18 -05:00 by GiteaMirror · 1 comment
Owner

Originally created by @guoaen on GitHub (Jul 2, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/15471

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

0.6.15

Ollama Version (if applicable)

No response

Operating System

Synology DSM 7.2

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

I created a model and enabled tool(mcp). When calling the model through the api, the model can call tool(mcp) correctly.

Actual Behavior

I created a model and enabled tool(mcp). But when calling the model through the api, the model does not call tool(mcp) correctly.

Steps to Reproduce

  1. I created a model and enabled the tool (mcp).
  2. Requested the model to process task A through the open-webui interface
  3. I could see the request in the mcpo log
  4. Requested the model to process the same task A through the api
  5. There was no request in the mcpo log

Logs & Screenshots

No response

Additional Information

No response

Originally created by @guoaen on GitHub (Jul 2, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/15471 ### 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 0.6.15 ### Ollama Version (if applicable) _No response_ ### Operating System Synology DSM 7.2 ### 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 I created a model and enabled tool(mcp). When calling the model through the api, the model can call tool(mcp) correctly. ### Actual Behavior I created a model and enabled tool(mcp). But when calling the model through the api, the model does not call tool(mcp) correctly. ### Steps to Reproduce 1. I created a model and enabled the tool (mcp). 2. Requested the model to process task A through the open-webui interface 3. I could see the request in the mcpo log 4. Requested the model to process the same task A through the api 5. There was no request in the mcpo log ### Logs & Screenshots No response ### Additional Information _No response_
GiteaMirror added the bug label 2026-04-25 06:58:18 -05:00
Author
Owner

@tjbck commented on GitHub (Jul 2, 2025):

We're unable to reproduce with the information provided, keep us updated.

<!-- gh-comment-id:3026766125 --> @tjbck commented on GitHub (Jul 2, 2025): We're unable to reproduce with the information provided, keep us updated.
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Reference: github-starred/open-webui#33103