Stability AI

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At a glance

• Availability: Experimental (how to enable).
• Authentication: API key.
• Connection: The key comes from STABILITY_API_KEY.
• Provider documentation: Authentication reference.

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Credentials

Set these per environment. See Connect an integration.

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Setup

1. Create a Stability AI account: Sign up at https://platform.stability.ai - new accounts receive 25 free credits, enough to test image generation.
2. Create an API key: Open https://platform.stability.ai/account/keys and copy your API key (starts with sk-). Create a dedicated key per application if you prefer.
3. Store the key: Add it to your .env file as STABILITY_API_KEY=sk-…
4. Verify access: Run the Get Balance tool to confirm the key works, then List Engines and try Text to Image with a simple prompt.

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Provider notes

• Image generation is billed in credits per image - buy credits at https://platform.stability.ai/account/credits
• Text to Image defaults the Accept header to application/json so images return as base64 artifacts (each with its seed and finishReason)
• The newer v2beta Stable Image endpoints require multipart/form-data uploads and are not exposed here; tools use the JSON v1 generation API (SDXL)

Provider API reference.

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Tools

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Verify the connection

Call a read tool such as stability-ai__list_engines with arguments for your account. Confirm that the result comes from the intended account or workspace before enabling write tools.