Stability AI Platform API

What it does

Stability AI Platform API is a REST API that takes text prompts, and in some endpoints existing audio, images or masks, and returns generated or edited media. The landing page centres on Stable Audio: text-to-audio creates music and sound effects from a prompt, audio-to-audio restyles an uploaded clip while keeping melody and structure, and audio inpainting replaces a chosen time range while leaving the rest intact. The same platform also offers Stable Image services (generation, upscaling, editing, control) and 3D asset generation from a single image.

Developers call the endpoints with an API key sent as a bearer token, using curl, Python or TypeScript, and receive audio files such as MP3. The site lists uses such as game and film sound design, background beds for video, loop libraries, adaptive in-app audio and scratch tracks. What sets it apart is a single credit-billed API spanning audio, image and 3D, with Stable Audio models described as trained on fully licensed material and outputs licensed for commercial use under the terms of service.

It suits developers and product teams adding generation to their own apps or pipelines; it is not a consumer editing app. Signing up needs no credit card and new accounts get 25 free credits, after which usage is paid in credits at 1 credit = $0.01. Pricing is subject to change. Enterprise customers can ask about custom rate limits, volume pricing or private deployment.

What it can do

• Text-to-audio generation of music and sound effects from prompts
• Audio-to-audio restyling that preserves melody and structure
• Audio inpainting to replace a masked time range in a track
• Image generation, upscaling, editing and control services
• 3D asset generation from a single input image

Example workflows

Generate a scratch music bed

Input: a text prompt describing the style and a desired duration. Steps: obtain an API key, POST the prompt to the text-to-audio endpoint, save the returned file. Output: an MP3 clip to use as a draft background track.

Rework part of an existing take

Input: a WAV recording, a prompt and start/end mask times. Steps: send the file to the inpaint endpoint with the mask range, review the result, repeat with adjusted prompts. Output: an audio file with only the masked section replaced.

Before you choose

• Billing is per generation in credits; confirm current per-service rates on the pricing page before budgeting.
• The free allowance is 25 credits for new accounts, not a recurring free tier.
• Commercial-use licensing is governed by Stability AI's terms of service, so review them for your use case.

Listed under

• Creative
• Music and audio
• API
• Audio
• Developers
• Game sound design
• Music generation
• Sound effects

Get started

25 free credits, no card required

1. Sign up and open the console to create an API key.
2. Store the key as an environment variable and send it as a bearer token in the Authorization header.
3. Call a Stable Audio endpoint with curl, Python or TypeScript and check credit use on your account page.

1 credit = $0.01. New accounts get 25 free credits (a one-time allowance), no card needed. Stable Audio 3.0 is listed at 8 credits; see the pricing page for other services. Failed requests are not charged. Rates may change.

Source: docs.stability.ai/pricing, checked 29 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

• Stability AI Platform — Stable Audio and Stable Image, one API ↗platform.stability.ai
• Stability AI Platform - Stability AI API Platform ↗platform.stability.ai
• Pricing - Stability AI API Platform ↗platform.stability.ai
• Pricing - Stability AI API Platform ↗docs.stability.ai
• Stability AI Platform - Stability AI API Platform ↗docs.stability.ai

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platform.stability.ai: product, pricing and policy pages

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Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.