text_to_image
Generate custom images from text descriptions using AI. Enter a detailed prompt to create visual content for various applications.
Instructions
Generate an image from a text prompt using Nanana AI. This operation typically takes 15-30 seconds to complete. The tool will wait for generation to finish and return the final image URL.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| prompt | Yes | The text prompt describing the image to generate |
Implementation Reference
- src/index.ts:75-104 (handler)Core handler function that executes the text-to-image generation by calling the Nanana AI API, handling errors, and returning the image URL.
async function callTextToImage( apiToken: string, params: TextToImageParams ): Promise<{ imageUrl: string; imageBase64: string; prompt: string }> { const response = await fetch(`${API_BASE_URL}/api/mcp/v1/text-to-image`, { method: "POST", headers: { Authorization: `Bearer ${apiToken}`, "Content-Type": "application/json", }, body: JSON.stringify({ prompt: params.prompt }), }); if (!response.ok) { const error = (await response.json().catch(() => ({}))) as { error?: string; }; throw new Error( error.error || `API request failed with status ${response.status}` ); } const data = (await response.json()) as { imageUrl: string; prompt: string }; // Download image and convert to base64 // const imageBase64 = await imageUrlToBase64(data.imageUrl); const imageBase64 = ""; return { imageUrl: data.imageUrl, imageBase64, prompt: data.prompt }; } - src/index.ts:172-186 (handler)MCP protocol handler dispatch for text_to_image tool call, logging, invoking core handler, and formatting response content.
if (name === "text_to_image") { const params = args as unknown as TextToImageParams; console.error( `[MCP] Starting text-to-image generation: "${params.prompt}"` ); const result = await callTextToImage(apiToken, params); console.error(`[MCP] Generation completed: ${result.imageUrl}`); return { content: [ { type: "text", text: `Successfully generated image!\n\nPrompt: ${result.prompt}\n\nImage URL: ${result.imageUrl}`, }, ], }; - src/index.ts:14-16 (schema)Type definition for input parameters of the text_to_image tool.
interface TextToImageParams { prompt: string; } - src/index.ts:24-38 (registration)Tool registration object defining name, description, and input schema for text_to_image.
const TEXT_TO_IMAGE_TOOL: Tool = { name: "text_to_image", description: "Generate an image from a text prompt using Nanana AI. This operation typically takes 15-30 seconds to complete. The tool will wait for generation to finish and return the final image URL.", inputSchema: { type: "object", properties: { prompt: { type: "string", description: "The text prompt describing the image to generate", }, }, required: ["prompt"], }, }; - src/index.ts:162-165 (registration)Registration of available tools in the MCP listTools handler, including text_to_image.
return { tools: [TEXT_TO_IMAGE_TOOL, IMAGE_TO_IMAGE_TOOL], }; });