[PR #18598] [CLOSED] feat: add custom headers to tool calls #47897

New Issue

GiteaMirror · 2026-04-29T23:18:58-05:00

GiteaMirror commented

2026-04-29 23:18:58 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/18598
Author: @Grezvany13
Created: 10/24/2025
Status: ❌ Closed

Base: dev ← Head: feature/custom-tool-headers

📝 Commits (8)

845f111 add frontend part of custom MCP headers
353f1c8 Merge remote-tracking branch 'origin/main' into feature/custom-tool-headers
3fe2640 Merge branch 'main' into feature/custom-tool-headers
b988994 Merge remote-tracking branch 'origin/feature/custom-tool-headers' into feature/custom-tool-headers
05c01b6 add additional headers to actual Tool calls + minor fixes
3b8b0e2 add config to get_tool_server_data call
3d58fe0 Merge branch 'refs/heads/dev' into feature/custom-tool-headers
20c74db remove console.log + cleanup

📊 Changes

5 files changed (+97 additions, -5 deletions)

View changed files

📝 backend/open_webui/routers/configs.py (+8 -1)
📝 backend/open_webui/utils/middleware.py (+5 -0)
📝 backend/open_webui/utils/tools.py (+8 -2)
➕ src/lib/components/AddServerModal.svelte (+0 -0)
📝 src/lib/components/AddToolServerModal.svelte (+76 -2)

📄 Description

Pull Request Checklist

Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.

Before submitting, make sure you've checked the following:

Target branch: Verify that the pull request targets the dev branch. Not targeting the dev branch may lead to immediate closure of the PR.
Description: Provide a concise description of the changes made in this pull request.
Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
Documentation: If necessary, update relevant documentation Open WebUI Docs like environment variables, the tutorials, or other documentation sources.
Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
Testing: Perform manual tests to verify the implemented fix/feature works as intended AND does not break any other functionality. Take this as an opportunity to make screenshots of the feature/fix and include it in the PR description.
Agentic AI Code:: Confirm this Pull Request is not written by any AI Agent or has at least gone through additional human review and manual testing. If any AI Agent is the co-author of this PR, it may lead to immediate closure of the PR.
Code review: Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
Title Prefix: To clearly categorize this pull request, prefix the pull request title using one of the following:
- BREAKING CHANGE: Significant changes that may affect compatibility
- build: Changes that affect the build system or external dependencies
- ci: Changes to our continuous integration processes or workflows
- chore: Refactor, cleanup, or other non-functional code changes
- docs: Documentation update or addition
- feat: Introduces a new feature or enhancement to the codebase
- fix: Bug fix or error correction
- i18n: Internationalization or localization changes
- perf: Performance improvement
- refactor: Code restructuring for better maintainability, readability, or scalability
- style: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.)
- test: Adding missing tests or correcting existing tests
- WIP: Work in progress, a temporary label for incomplete or ongoing work

Changelog Entry

Description

Makes it possible to add custom headers to tool calls by adding a (optional) KEY => VALUE list to the Tools Modal.

Reason is that not all MCP's use or require the "standard" Auth headers, and custom MCP's can use it for custom implementations (eg. require API_CLIENT and API_SECRET ).

Added

added (optional) list of Custom Headers in the Add Tool Modal, for both admin tools and user tools
implemented the custom headers to all tool calls (verify and actual tool calls)

Changed

N/A

Deprecated

N/A

Removed

N/A

Fixed

N/A

Security

N/A

Breaking Changes

BREAKING CHANGE: N/A

Additional Information

Based on Discussion: https://github.com/open-webui/open-webui/discussions/17893

Screenshots or Videos

Contributor License Agreement

By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/open-webui/open-webui/pull/18598 **Author:** [@Grezvany13](https://github.com/Grezvany13) **Created:** 10/24/2025 **Status:** ❌ Closed **Base:** `dev` ← **Head:** `feature/custom-tool-headers` --- ### 📝 Commits (8) - [`845f111`](https://github.com/open-webui/open-webui/commit/845f111dc79c766842acd3cfbcb5a11ff9ab21c2) add frontend part of custom MCP headers - [`353f1c8`](https://github.com/open-webui/open-webui/commit/353f1c81df74847419d6d668427cf7c623a8c25a) Merge remote-tracking branch 'origin/main' into feature/custom-tool-headers - [`3fe2640`](https://github.com/open-webui/open-webui/commit/3fe2640f72e031e4df4e16b79b78f2c836930fe2) Merge branch 'main' into feature/custom-tool-headers - [`b988994`](https://github.com/open-webui/open-webui/commit/b9889940366660d7154a532e456ef3dfc395f43c) Merge remote-tracking branch 'origin/feature/custom-tool-headers' into feature/custom-tool-headers - [`05c01b6`](https://github.com/open-webui/open-webui/commit/05c01b6a64956d54487e583729f1a4e4e5c7c23c) add additional headers to actual Tool calls + minor fixes - [`3b8b0e2`](https://github.com/open-webui/open-webui/commit/3b8b0e2c47c5347afc3cd14d5f2a12085bb181cc) add config to get_tool_server_data call - [`3d58fe0`](https://github.com/open-webui/open-webui/commit/3d58fe06ce8243113e2a1738f026a6e29416aaf4) Merge branch 'refs/heads/dev' into feature/custom-tool-headers - [`20c74db`](https://github.com/open-webui/open-webui/commit/20c74dbf3f921666b6462b776d3a43c40769e620) remove console.log + cleanup ### 📊 Changes **5 files changed** (+97 additions, -5 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/routers/configs.py` (+8 -1) 📝 `backend/open_webui/utils/middleware.py` (+5 -0) 📝 `backend/open_webui/utils/tools.py` (+8 -2) ➕ `src/lib/components/AddServerModal.svelte` (+0 -0) 📝 `src/lib/components/AddToolServerModal.svelte` (+76 -2) </details> ### 📄 Description # Pull Request Checklist ### Note to first-time contributors: Please open a discussion post in [Discussions](https://github.com/open-webui/open-webui/discussions) and describe your changes before submitting a pull request. **Before submitting, make sure you've checked the following:** - [x] **Target branch:** Verify that the pull request targets the `dev` branch. Not targeting the `dev` branch may lead to immediate closure of the PR. - [x] **Description:** Provide a concise description of the changes made in this pull request. - [x] **Changelog:** Ensure a changelog entry following the format of [Keep a Changelog](https://keepachangelog.com/) is added at the bottom of the PR description. - [ ] **Documentation:** If necessary, update relevant documentation [Open WebUI Docs](https://github.com/open-webui/docs) like environment variables, the tutorials, or other documentation sources. - [x] **Dependencies:** Are there any new dependencies? Have you updated the dependency versions in the documentation? - [x] **Testing:** Perform manual tests to verify the implemented fix/feature works as intended AND does not break any other functionality. Take this as an opportunity to make screenshots of the feature/fix and include it in the PR description. - [x] **Agentic AI Code:**: Confirm this Pull Request is **not written by any AI Agent** or has at least gone through additional human review **and** manual testing. If any AI Agent is the co-author of this PR, it may lead to immediate closure of the PR. - [x] **Code review:** Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards? - [x] **Title Prefix:** To clearly categorize this pull request, prefix the pull request title using one of the following: - **BREAKING CHANGE**: Significant changes that may affect compatibility - **build**: Changes that affect the build system or external dependencies - **ci**: Changes to our continuous integration processes or workflows - **chore**: Refactor, cleanup, or other non-functional code changes - **docs**: Documentation update or addition - **feat**: Introduces a new feature or enhancement to the codebase - **fix**: Bug fix or error correction - **i18n**: Internationalization or localization changes - **perf**: Performance improvement - **refactor**: Code restructuring for better maintainability, readability, or scalability - **style**: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.) - **test**: Adding missing tests or correcting existing tests - **WIP**: Work in progress, a temporary label for incomplete or ongoing work # Changelog Entry ### Description Makes it possible to add custom headers to tool calls by adding a (optional) KEY => VALUE list to the Tools Modal. Reason is that not all MCP's use or require the "standard" Auth headers, and custom MCP's can use it for custom implementations (eg. require `API_CLIENT` and `API_SECRET` ). ### Added - added (optional) list of Custom Headers in the Add Tool Modal, for both admin tools and user tools - implemented the custom headers to all tool calls (verify and actual tool calls) ### Changed N/A ### Deprecated N/A ### Removed N/A ### Fixed N/A ### Security N/A ### Breaking Changes - **BREAKING CHANGE**: N/A --- ### Additional Information Based on Discussion: https://github.com/open-webui/open-webui/discussions/17893 ### Screenshots or Videos <img width="497" height="331" alt="image" src="https://github.com/user-attachments/assets/6d490640-99fb-422a-b44f-8695d1a2b38d" /> ### Contributor License Agreement By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-29 23:18:58 -05:00

GiteaMirror closed this issue

2026-04-29 23:19:00 -05:00

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Reference: github-starred/open-webui#47897