WordPress MCP Server

Instructions

Implementation Reference

• src/index.ts:2071-2098 (handler)

  The handler function for the 'delete-category' tool. It makes a DELETE request to the WordPress REST API endpoint `/wp-json/wp/v2/categories/${categoryId}` using the shared `makeWPRequest` helper, with `force` parameter. Returns success or error message in MCP content format.

    try {
      await makeWPRequest<any>({
        siteUrl,
        endpoint: `categories/${categoryId}`,
        method: "DELETE",
        auth: { username, password },
        params: { force }
      });
      
      return {
        content: [
          {
            type: "text",
            text: `Successfully deleted category ${categoryId}.`,
          },
        ],
      };
    } catch (error) {
      return {
        content: [
          {
            type: "text",
            text: `Error deleting category: ${error instanceof Error ? error.message : String(error)}`,
          },
        ],
      };
    }
  }

• src/index.ts:2064-2070 (schema)

  Zod schema defining input parameters for the 'delete-category' tool: siteUrl (required URL), username, password (credentials), categoryId (number, required), force (boolean, defaults to true).

    siteUrl: z.string().url().describe("WordPress site URL"),
    username: z.string().describe("WordPress username"),
    password: z.string().describe("WordPress application password"),
    categoryId: z.number().describe("ID of the category to delete"),
    force: z.boolean().optional().default(true).describe("Required to be true, as terms do not support trashing"),
  },
  async ({ siteUrl, username, password, categoryId, force }) => {

• src/index.ts:2061-2099 (registration)

  Registration of the 'delete-category' tool via `server.tool(name, description, inputSchema, handlerFunction)`. Located in the CATEGORY TOOLS section.

    "delete-category",
    "Delete a WordPress category",
    {
      siteUrl: z.string().url().describe("WordPress site URL"),
      username: z.string().describe("WordPress username"),
      password: z.string().describe("WordPress application password"),
      categoryId: z.number().describe("ID of the category to delete"),
      force: z.boolean().optional().default(true).describe("Required to be true, as terms do not support trashing"),
    },
    async ({ siteUrl, username, password, categoryId, force }) => {
      try {
        await makeWPRequest<any>({
          siteUrl,
          endpoint: `categories/${categoryId}`,
          method: "DELETE",
          auth: { username, password },
          params: { force }
        });
        
        return {
          content: [
            {
              type: "text",
              text: `Successfully deleted category ${categoryId}.`,
            },
          ],
        };
      } catch (error) {
        return {
          content: [
            {
              type: "text",
              text: `Error deleting category: ${error instanceof Error ? error.message : String(error)}`,
            },
          ],
        };
      }
    }
  );

• src/index.ts:158-194 (helper)

  Shared helper function `makeWPRequest` used by all WP API tools, including delete-category, to perform authenticated HTTP requests to WP REST API.

  async function makeWPRequest<T>({
    siteUrl, 
    endpoint,
    method = 'GET',
    auth,
    data = null,
    params = null
  }: {
    siteUrl: string;
    endpoint: string;
    method?: 'GET' | 'POST' | 'PUT' | 'DELETE';
    auth: { username: string; password: string };
    data?: any;
    params?: any;
  }): Promise<T> {
    const authString = Buffer.from(`${auth.username}:${auth.password}`).toString('base64');
    
    try {
      const response = await axios({
        method,
        url: `${siteUrl}/wp-json/wp/v2/${endpoint}`,
        headers: {
          'Authorization': `Basic ${authString}`,
          'Content-Type': 'application/json',
        },
        data: data,
        params: params
      });
      
      return response.data as T;
    } catch (error) {
      if (axios.isAxiosError(error) && error.response) {
        throw new Error(`WordPress API error: ${error.response.data?.message || error.message}`);
      }
      throw error;
    }
  }