# Stability AI

**Canonical:** https://apis.io/providers/stability-ai/  
**Website:** https://stability.ai  
**APIs profiled:** 18

Stability AI is an AI company that develops open-source generative AI models for image, audio, video, and language, including the Stable Diffusion family of image generation models. The Stability AI developer platform provides REST APIs for text-to-image generation, image editing, image upscaling, image structure control, video generation, and 3D asset creation. All APIs are accessible at api.stability.ai using bearer token authentication.

## Kin Score — 43.5 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 43.5).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 65.1 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 28.6 |
| Commercial Clarity | 47.4 |
| Access Clarity | 47.4 |

## Agent readiness — 25.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (18)

- **Stability AI 3D Generation API** — Generate textured 3D mesh assets from single input images using the Stable Fast 3D model.
- **Stability AI Conservative Upscale API** — Increase image resolution while closely preserving the original image details and composition with minimal creative additions.
- **Stability AI Creative Upscale API** — Increase image resolution while enhancing details and adding creative improvements guided by an optional text prompt. This is an asynchronous endpoint that returns a generation ...
- **Stability AI Erase API** — Remove objects from an image by masking the area to erase and letting the AI fill in the background naturally.
- **Stability AI Fast Upscale API** — Quickly increase image resolution with minimal processing time while maintaining image quality.
- **Stability AI Generate Core API** — Generate images using Stable Image Core, a fast and affordable model for high-quality image generation.
- **Stability AI Generate SD3 API** — Generate images using Stable Diffusion 3 and 3.5 models with advanced text-to-image and image-to-image capabilities.
- **Stability AI Generate Ultra API** — Generate images using Stable Image Ultra, the highest quality model for state-of-the-art photorealistic and artistic image generation.
- **Stability AI Image to Video API** — Generate short video clips from a single input image using the Stable Video Diffusion model. The API uses an asynchronous start-and-poll pattern.
- **Stability AI Inpaint API** — Fill in masked regions of an image using AI-guided inpainting with text prompts to control what appears in the filled area.
- **Stability AI Outpaint API** — Extend the boundaries of an image by generating new content that seamlessly continues the existing scene in any direction.
- **Stability AI Remove Background API** — Automatically detect and remove the background from an image, isolating the foreground subject.
- **Stability AI Replace Background and Relight API** — Replace the background of an image and adjust lighting conditions using AI-powered scene understanding.
- **Stability AI Search and Recolor API** — Find specific objects within an image and recolor them using text descriptions of the target object and desired color.
- **Stability AI Search and Replace API** — Find and replace specific objects within an image using text descriptions of what to search for and what to replace it with.
- **Stability AI Sketch API** — Generate images from hand-drawn sketches or line drawings, guided by a text prompt to fill in details, colors, and textures.
- **Stability AI Structure API** — Generate images guided by the structural composition of a reference image, preserving edges and layout while applying new content from a text prompt.
- **Stability AI Style API** — Generate images that adopt the visual style of a reference image while following a text prompt for content direction.

## Agentic access (1)

- **Stability Ai Agentic Access** — 20 operations · 18 acting · 3 human-in-the-loop

## Security (2)

- **Stability Ai Authentication** — http · 1 scheme
- **Stability Ai Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Stability Ai Plans Pricing**

## Tags

3D Generation, Artificial Intelligence, Generative AI, Image-Generation, Image Editing, Machine-Learning, Stable Diffusion, Text-to-Image, Video Generation

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/stability-ai/). Scores are computed from the provider's own public artifacts under a published rubric.