mcp-server-stability-ai
Version:
MCP [Model Context Protocol](https://modelcontextprotocol.io/) Server integrating MCP Clients with [Stability AI](https://stability.ai/) image manipulation functionalities: generate, edit, upscale, and more.
90 lines (89 loc) • 3.56 kB
JavaScript
import { z } from "zod";
import { StabilityAiApiClient } from "../stabilityAi/stabilityAiApiClient.js";
import open from "open";
import { getResourceClient } from "../resources/resourceClientFactory.js";
const OutpaintArgsSchema = z.object({
imageFileUri: z.string(),
left: z.number().min(0).max(2000).optional(),
right: z.number().min(0).max(2000).optional(),
up: z.number().min(0).max(2000).optional(),
down: z.number().min(0).max(2000).optional(),
creativity: z.number().min(0).max(1).optional(),
prompt: z.string().max(10000).optional(),
outputImageFileName: z.string(),
});
export const outpaintToolDefinition = {
name: "stability-ai-outpaint",
description: `Extends an image in any direction while maintaining visual consistency.`,
inputSchema: {
type: "object",
properties: {
imageFileUri: {
type: "string",
description: `The URI to the image file. It should start with file://`,
},
left: {
type: "number",
description: "The number of pixels to extend the image to the left",
},
right: {
type: "number",
description: "The number of pixels to extend the image to the right",
},
up: {
type: "number",
description: "The number of pixels to extend the image upwards",
},
down: {
type: "number",
description: "The number of pixels to extend the image downwards",
},
creativity: {
type: "number",
description: "The creativity of the outpaint operation",
},
prompt: {
type: "string",
description: "The prompt to use for the outpaint operation",
},
outputImageFileName: {
type: "string",
description: "The desired name of the output image file, no file extension. Make it descriptive but short. Lowercase, dash-separated, no special characters.",
},
},
required: ["imageFileUri", "outputImageFileName"],
},
};
export async function outpaint(args, context) {
const validatedArgs = OutpaintArgsSchema.parse(args);
const resourceClient = getResourceClient();
const imageFilePath = await resourceClient.resourceToFile(validatedArgs.imageFileUri, context);
// Ensure at least one direction is specified
if (!validatedArgs.left &&
!validatedArgs.right &&
!validatedArgs.up &&
!validatedArgs.down) {
throw new Error("At least one direction (left, right, up, or down) must be specified");
}
const client = new StabilityAiApiClient(process.env.STABILITY_AI_API_KEY);
const response = await client.outpaint(imageFilePath, validatedArgs);
const imageAsBase64 = response.base64Image;
const filename = `${validatedArgs.outputImageFileName}.png`;
const resource = await resourceClient.createResource(filename, imageAsBase64);
if (resource.uri.includes("file://")) {
const file_location = resource.uri.replace("file://", "");
open(file_location);
}
return {
content: [
{
type: "text",
text: `Processed image "${validatedArgs.imageFileUri}" to outpaint`,
},
{
type: "resource",
resource: resource,
},
],
};
}