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Stability AI MCP server

Generate, edit, upscale and restyle images with Stability AI models such as Stable Image Ultra, Core and Stable Diffusion 3.5.

Stability AI is not a separate install. One Activepieces MCP server exposes it alongside 770+ other apps, behind a single URL.

Tools
21
Works with
Any MCP client
Auth
Custom auth
License
MIT, open source
Updated
November 2026

About the Stability AI MCP server

Connect Stability AI once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Stability AI and 770+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Stability AI tools your AI can run

Once connected, your assistant can call any of these Stability AI actions by asking in plain language.

  • Generate Image

    Create an image from a text prompt with Stable Image Ultra (8 credits), Core (3 credits) or Stable Diffusion 3.5 (3.5 to 6.5 credits).

    9 fields

  • Image to Image

    Create a new image from a starting image and a prompt with Stable Image Ultra (8 credits) or Stable Diffusion 3.5 (3.5 to 6.5 credits).

    10 fields

  • Upscale Image

    Enlarge an image. Fast: 4x larger in about a second (2 credits), input at most 1024x1024 pixels. Conservative: up to 4 megapixels with minimal changes (40 credits, needs a prompt).

    8 fields

  • Creative Upscale

    Upscale a small or degraded image to 4K, reimagining details (60 credits). Runs as a background job; optionally waits up to 4 minutes for the result.

    9 fields

  • Get Generation Result

    Fetch the result of a Creative Upscale or Replace Background and Relight job. Free; results are kept for 24 hours.

    2 fields

  • Erase Object

    Remove unwanted objects, blemishes or text from an image using a mask (5 credits).

    6 fields

  • Inpaint

    Fill or replace the masked area of an image with new content from a prompt (5 credits).

    9 fields

  • Outpaint

    Extend an image beyond its borders in any direction (4 credits).

    11 fields

  • Search and Replace

    Replace an object in an image by describing it, no mask needed (5 credits).

    9 fields

  • Search and Recolor

    Change the color of an object in an image by describing it, no mask needed (5 credits).

    9 fields

  • Remove Background

    Cut out the subject of an image and make the background transparent (5 credits).

    3 fields

  • Replace Background and Relight

    Put the subject of a photo on a new background described by a prompt or a reference image, and adjust the lighting (8 credits). Runs as a background job; optionally waits up to 4 minutes.

    15 fields

  • Sketch to Image

    Turn a sketch or line drawing into a finished image guided by a prompt (5 credits).

    8 fields

  • Structure to Image

    Create a new image that keeps the structure of an input image, guided by a prompt (5 credits).

    8 fields

  • Style Guide

    Create a new image from a prompt in the style of a reference image (5 credits).

    9 fields

  • Style Transfer

    Restyle an image with the look of a second image while keeping its content (8 credits).

    10 fields

  • Get Account Balance

    Get the number of credits left on the Stability AI account.

  • Get Account Details

    Get the user and organizations behind the connected Stability AI API key.

  • List Engines

    List the legacy v1 engines available to the connected account, for use as the Engine ID in Text to Image.

  • Text to Image

    Generate images from a text prompt with the legacy SDXL 1.0 engine. For newer models use Generate Image.

    10 fields

  • Custom API Call

    Make a custom API call to a specific endpoint

    10 fields

Give your assistant Stability AI

Connect Stability AI once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 770+ other apps. Free to start.

Stability AI MCP, answered.

No. That is the point of it. One Activepieces server exposes Stability AI alongside every other piece you connect, so your client keeps a single connection.

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

Connect Stability AI in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

It can call 21 tools, including Generate Image, Image to Image, Upscale Image, and chain them with steps in other apps inside the same run.

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.