promptpilot-mcp-server

Instructions

Implementation Reference

• src/tools.ts:270-326 (handler)

  Handler function that executes the audio generation logic using the Pollinations API.

  export async function handleGenerateAudio(
    args: z.infer<typeof generateAudioSchema>
  ) {
    const model = getModel(args.model);
    if (!model || model.type !== "audio") {
      return {
        content: [
          {
            type: "text" as const,
            text: `Unknown audio model: ${args.model}. Use list_models to see available models.`,
          },
        ],
        isError: true,
      };
    }
    if (!API_KEY) {
      return {
        content: [
          {
            type: "text" as const,
            text: `Audio models require a Pollinations API key. Set POLLINATIONS_API_KEY env variable.`,
          },
        ],
        isError: true,
      };
    }
  
    const params = new URLSearchParams({
      model: args.model,
    });
    if (args.model === "elevenlabs") {
      params.set("voice", args.voice);
    }
    if (API_KEY) params.set("token", API_KEY);
  
    const encodedPrompt = encodeURIComponent(args.prompt);
    const url = `https://gen.pollinations.ai/audio/${encodedPrompt}?${params}`;
  
    const info =
      args.model === "elevenlabs"
        ? `Voice: ${args.voice}`
        : "Type: Music generation";
  
    return {
      content: [
        {
          type: "text" as const,
          text: [
            `Audio generated successfully!`,
            `Model: ${model.name}`,
            info,
            `URL: ${url}`,
          ].join("\n"),
        },
      ],
    };
  }

• src/tools.ts:77-87 (schema)

  Zod schema defining input validation for the generate_audio tool.

  export const generateAudioSchema = z.object({
    prompt: z.string().describe("Text for speech or music prompt"),
    model: z
      .enum(["elevenlabs", "elevenmusic"])
      .default("elevenlabs")
      .describe("Audio model"),
    voice: z
      .enum(["alloy", "echo", "fable", "onyx", "nova", "shimmer"])
      .default("nova")
      .describe("Voice (elevenlabs only)"),
  });