---
title: "Remove a custom WebMCP tool"
method: DELETE
path: "/browsers/{id_or_name}/webmcp/custom-tools/{id}"
tags: ["Browser WebMCP"]
---

# Remove a custom WebMCP tool

`DELETE /browsers/{id_or_name}/webmcp/custom-tools/{id}`

## Request

- Base URL: `https://api.onkernel.com`
- URL: `https://api.onkernel.com/browsers/{id_or_name}/webmcp/custom-tools/{id}`
- Auth: HTTP bearer

Removes one custom tool by generated ID. An invocation already in progress is not canceled.

## Path parameters

- `id_or_name` string, required
- `id` string, required

## Response `204`

Custom tool removed

## Other responses

- `400`: Bad Request – invalid input
- `404`: Resource not found
- `500`: Internal Server Error
- `default`: Error returned by the browser or its proxy

## Changes

- **2026-10-16** `03b369edee49`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/kernel/apis/kernel-api/changes/browsers/:id_or_name/webmcp/custom-tools/:id/delete.md)

---

[API](https://skmtc.dev/kernel/apis/kernel-api.md) - [All operations](https://skmtc.dev/kernel/apis/kernel-api/llms.txt) - [OpenAPI document](https://skmtc.dev/kernel/apis/kernel-api/revisions/0f6cf4f58fe6?raw)