Dumpling AI MCP Server

Instructions

Implementation Reference

• src/index.ts:630-650 (handler)

  Handler function that proxies the trim-video request to the external Dumpling AI API endpoint, authenticates with API key, and returns the response as MCP content.

  async ({ videoUrl, startTimestamp, endTimestamp }) => {
    const apiKey = process.env.DUMPLING_API_KEY;
    if (!apiKey) throw new Error("DUMPLING_API_KEY not set");
    const response = await fetch(`${NWS_API_BASE}/api/v1/trim-video`, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${apiKey}`,
      },
      body: JSON.stringify({
        videoUrl,
        startTimestamp,
        endTimestamp,
        requestSource: "mcp",
      }),
    });
    if (!response.ok)
      throw new Error(`Failed: ${response.status} ${await response.text()}`);
    const data = await response.json();
    return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] };
  }

• src/index.ts:625-629 (schema)

  Zod schema defining the input parameters for the trim-video tool: video URL and start/end timestamps.

  {
    videoUrl: z.string().url().describe("URL of the video"),
    startTimestamp: z.string().describe("Start time in HH:MM:SS"),
    endTimestamp: z.string().describe("End time in HH:MM:SS"),
  },

• src/index.ts:622-651 (registration)

  Registration of the 'trim-video' tool using server.tool(), including name, description, input schema, and handler function.

  server.tool(
    "trim-video",
    "Trim videos to a specific duration.",
    {
      videoUrl: z.string().url().describe("URL of the video"),
      startTimestamp: z.string().describe("Start time in HH:MM:SS"),
      endTimestamp: z.string().describe("End time in HH:MM:SS"),
    },
    async ({ videoUrl, startTimestamp, endTimestamp }) => {
      const apiKey = process.env.DUMPLING_API_KEY;
      if (!apiKey) throw new Error("DUMPLING_API_KEY not set");
      const response = await fetch(`${NWS_API_BASE}/api/v1/trim-video`, {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
          Authorization: `Bearer ${apiKey}`,
        },
        body: JSON.stringify({
          videoUrl,
          startTimestamp,
          endTimestamp,
          requestSource: "mcp",
        }),
      });
      if (!response.ok)
        throw new Error(`Failed: ${response.status} ${await response.text()}`);
      const data = await response.json();
      return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] };
    }
  );