---
title: "Create and Manage MCPs"
site_url: "https://www.letsmagic.cn/help"
retrieval_url: "https://www.letsmagic.cn/help/en-US/llms/model-context-protocol/create-and-manage-mcps.md"
citation_url: "https://www.letsmagic.cn/help/en-US/docs/model-context-protocol/create-and-manage-mcps"
---

# Create and Manage MCPs

Summary：Create an MCP in **Custom Plugins**, connect the required capabilities by importing existing tools or entering a JSON configuration, and modify or delete the MCP after it is created.

Canonical citation URL (for users)：https://www.letsmagic.cn/help/en-US/docs/model-context-protocol/create-and-manage-mcps
Machine retrieval URL (for agents only)：https://www.letsmagic.cn/help/en-US/llms/model-context-protocol/create-and-manage-mcps.md
Category：MCP
Type：Step-by-Step Tutorial
Difficulty：Intermediate
Updated：2026-09-02

Create an MCP in **Custom Plugins**, connect the required capabilities by importing existing tools or entering a JSON configuration, and modify or delete the MCP after it is created.

## Before you begin

Before you start creating an MCP, confirm that you have prepared the following information:

- Determine the **MCP plugin name** and its primary purpose.
- If you are using existing tools, determine which tools you need to import.
- If you are connecting to an external MCP service, prepare the corresponding **JSON configuration**, **Headers**, and authorization information.

The **JSON configuration**, **Headers**, or authorization information may contain access credentials. When entering or capturing this information in screenshots, retain only the information required to complete the configuration. Do not send tokens, keys, or other such content to unrelated people.

## Create an MCP plugin

1. Open **MCP Plugins** on the conversation page.
2. Switch to the **Custom Plugins** tab.
3. Click **Create MCP Plugin** in the upper-right corner.

![Switch to Custom Plugins and click Create MCP Plugin](https://www.letsmagic.cn/help/docs/docs/2026-08-19/31598f18-8a63-407d-b8f4-cb766e0da7ce.png)

After the **Create MCP Plugin** form opens, you can enter basic information and select a configuration method.

![Initial MCP creation form](https://www.letsmagic.cn/help/docs/docs/2026-08-19/091a21a9-e9bd-4d29-b5ee-52d1bdfd4e34.png)

1. Click **Upload** as needed to set the plugin icon.
2. Enter a name in **MCP Plugin Name**.
3. Describe the plugin's primary purpose in **Description**.

After you complete the basic information, the page continues to display two configuration methods: **Import Existing Tools** and **Custom MCP**.

![Enter the MCP name and description](https://www.letsmagic.cn/help/docs/docs/2026-08-19/fc7edce6-149f-4f29-9d8c-f79fa82c372f.png)

## Select a configuration method


| Configuration method      | Applicable scenario                                                        |
| ------------------------- | -------------------------------------------------------------------------- |
| **Import Existing Tools** | Select the tools you need from the tool list provided on the current page. |
| **Custom MCP**            | Connect to an external MCP service through a JSON configuration.           |


After selecting a configuration method, continue entering the tools, Headers, and authorization information required for that method.

## Import existing tools

1. Select **Import Existing Tools**.
2. Click **Import Existing Tools** below.
3. Browse tool sets and tools on the **Import Tools** page.
4. Adjust the sorting, enter keywords to search, or select **Show Official Tools Only** as needed.
5. Expand the target tool set.
6. Click **Add** to the right of the target tool.

After adding the target tools, return to the creation form and check whether the **Imported Tools** section displays the tools you need to use.

![Import existing tools from the tool list](https://www.letsmagic.cn/help/docs/docs/2026-08-19/8d9250dc-b36c-42a3-b63b-2d4fcd29b6e8.png)

The creation form also provides an **Add New Tool** entry point. The current screenshot does not show the complete configuration flow after clicking it. When you need to add a new tool, continue by completing the fields displayed on the page.

## Configure Headers parameters

When you need to pass parameters to a tool or an external MCP service, you can add configurations in the **Headers** section.

1. Expand **Headers**.
2. Enter the required name in **Parameter Name**.
3. Enter the corresponding value in **Parameter Value**.
4. When you need to use a custom parameter, enter the content in **Custom Parameter**.
5. To add more parameters, click **Add Parameter**.

After completing the fields, check that the parameter names and values correspond correctly.

![Configure Headers parameters for MCP](https://www.letsmagic.cn/help/docs/docs/2026-08-19/a659d471-b6f8-4ddf-9599-51f5aeec5843.png)

**Headers** may contain tokens or other access credentials. Before submitting, confirm that the parameter sources are reliable, and avoid exposing actual parameter values in screenshots or shared documents.

## Customize an MCP through a JSON configuration

1. Select **Custom MCP**.
2. Enable **Import via JSON**.
3. Enter or paste the MCP **JSON configuration** in the configuration area.
4. Check the MCP name, description, **Headers**, and other content in the configuration.

The page displays the current **JSON configuration**. You can continue to configure **Headers** and the authorization method.

![Configure MCP through JSON](https://www.letsmagic.cn/help/docs/docs/2026-08-19/900d479b-d4d4-47e3-9c9a-226119041003.png)

The fields and values in the **JSON configuration** should comply with the requirements of the MCP service you need to connect to. Before submitting, check the JSON format and remove access credentials that do not need to be made public.

## Select an authorization method

After expanding **Authorization Method**, the current page displays the following options:

- **No Authorization Required**
- **OAuth 2.0**

Select an authorization method based on the actual requirements of the MCP service. The current screenshot does not show the subsequent OAuth 2.0 authorization process. After selecting it, continue by following the prompts displayed on the page.

## Complete creation and check the MCP

After completing the basic information and capability configuration, check the plugin name, description, imported tools, **JSON configuration**, **Headers**, and authorization method.

1. Click **Add** at the bottom of the form.
2. Return to the **Custom Plugins** list.
3. Check whether the newly created MCP is displayed.

After creation is complete, the list displays the MCP name and description, as well as the **Configure**, **Manage Permissions**, and **Add** entry points.

![The Custom Plugins list displays the created MCP](https://www.letsmagic.cn/help/docs/docs/2026-08-19/37cf1b67-408f-41fc-9570-aac7647d2c46.png)

On the current page, the MCP you create is visible only to you, the creator. The **Manage Permissions** entry in the list does not indicate that you can assign the MCP to other organization members.

## Modify or delete an MCP

1. Find the target MCP in the **Custom Plugins** list.
2. Click **Configure**.
3. Modify the plugin's basic information or capability configuration.
4. Click **Save**.

After saving, return to the list and check whether the name, description, and configuration meet your expectations.

![Save or delete the MCP while modifying it](https://www.letsmagic.cn/help/docs/docs/2026-08-19/197ef625-849a-4371-97b0-1beb9b34863e.png)

The modification page also provides a **Delete** entry point. The current screenshot does not show the deletion confirmation, deletion result, or the impact on loaded conversations. Before deleting, confirm that the MCP is no longer needed, and complete the operation according to the prompts displayed on the page.