Guides · ai · Popular APIs

Stability AI Platform API

Stability AI platform account, prepaid credits and an API key for Stable Image, Stable Audio and 3D endpoints.

Researched · not yet run liveLast researched 25 October 2026 · Stability AI · provider site

Researched, not yet run live. Built from the provider’s official pages (linked below). A person hasn’t walked this flow end to end yet, so check each step against the source.

Who owns what

A single Stability AI platform account holds the credit balance and API keys.

  • Stability AI platform account personal owned by the personOrganisation or team accounts are not described in the docs reviewed. [to verify]

Account login details must not be shared with others (Terms of Service s.2(c)).

Have ready

  • An email address or Google account to sign in with: The getting-started guide offers username/password or Google sign-in.
  • A payment card for buying credits once the free credits run out · Requests fail with 402 when the account is out of credits. [3]Needed for: Buy credits (when the free credits are not enough)

Steps

Steps marked “human step” are ones only you can do: verapli never signs in, submits, pays or accepts terms for you.

  1. Sign in or create a Stability AI platform account

    Click Login on the platform and sign in with a username and password or with Google. If you have no account you create it yourself; verapli does not create accounts. You must be 18 or older for image services.

    • Guided by hand
    • Human step: You sign in

    Where: https://platform.stability.ai/

  2. Review the Terms of Service, Acceptable Use Policy and licence

    Read the Terms of Service and Acceptable Use Policy, which govern API use, and check whether your organisation's annual revenue (over USD 1M) means you need an Enterprise licence.

    • Guided by hand
    • Human step: You accept the terms
    • After: Sign in or create a Stability AI platform account

    Where: https://stability.ai/terms-of-service

  3. Buy credits (when the free credits are not enough)optional

    In the Billing dashboard, check your balance and buy credits ($1 per 100 credits). You enter payment details yourself on Stability AI's page.

    • Guided by hand
    • Human step: You add payment details
    • After: Sign in or create a Stability AI platform account
    If something goes wrong (1)
    • API calls return 402: The account is out of credits; buy more in the Billing dashboard. [3]

    Where: https://platform.stability.ai/dashboard/billing

  4. Create an API key

    On the API keys page of the dashboard, create a key and copy it. verapli writes it to your env file.

    • Guided by hand
    • Human step: You press submit
    • After: Sign in or create a Stability AI platform account

    verapli captures STABILITY_API_KEY here by plain code: encrypted in your browser, never shown to AI.

    If something goes wrong (1)
    • Key rejected with 401: Confirm the key is valid by logging in, check the account has credits, paste the key rather than retyping it (O and 0 look alike), or create a new key. [3]

    Where: https://platform.stability.ai/dashboard/api-keys

Terms and gotchas

Plain-English summary, not legal advice. Each card links its source.

Can cost moneyThe rules say

Enterprise licence above USD 1M revenue

Core models are free under the Community licence for organisations with under USD 1M annual revenue; commercial use by organisations above that threshold requires contacting Stability AI for an Enterprise licence. API providers are listed as an Enterprise audience. How this applies to paid API usage specifically is not stated on the licence page. [to verify] [5]

Worth knowingThe rules say

Commercial use of API outputs

The FAQ says API outputs can be used commercially as long as they do not violate anyone's copyright; the Terms say you own the Output to the extent permitted by law. [3]

Can cost moneyThe rules say

No reselling, key transfers or competing models

You may not resell or sublicense the API (except as an integrated component of your own product), buy, sell or transfer API keys, or use the Services or Outputs to train a competing AI model without written approval. [4]

Worth knowingThe rules say

Credits are non-refundable and expire

Service credits are non-refundable and unused credits expire one year after purchase or issuance unless otherwise specified. [4]

Can cost moneyThe rules say

Acceptable Use Policy applies to the API

The AUP explicitly covers APIs and bans, among other things, illegal content, sexual content involving minors, non-consensual intimate imagery, impersonation and undisclosed AI interaction. Violations can lead to suspension or termination. [6]

What you end up with

Env varSecretFormatWhat it is
STABILITY_API_KEYsecretsk-… [to verify]Stability AI platform API key, sent in the Authorization header

Pricing

  • Free tier: 25 free credits for new users (Google sign-in per the getting-started guide).
  • Costs: 1 credit = $0.01 ($1 per 100 credits). Examples: Stable Image Ultra 8 credits, Stable Image Core 3, SD 3.5 Large 6.5, Remove Background 5, Stable Audio 8, Stable Fast 3D 10.
  • Invoice billing is available for large purchases via sales. Credits expire one year after purchase. Rate limit is 150 requests per 10 seconds; higher limits on request.

Source [2]

For agents

The same entry as JSON: /api/v1/entries/stability-ai/api · requirements /api/v1/requirements/stability-ai/api · terms /api/v1/terms/stability-ai/api.

Remote MCP (read-only, no auth)
claude mcp add --transport http verapli https://verapli.com/mcp

> "What do I need for Stability AI Platform API, and how long will it take?"
  → tools/call requirements { "provider_id": "stability-ai/api" }

Sources

  1. Stability AI docs - Getting started Sign in via Login with username/password or Google; Google sign-in grants 25 free credits; keys at platform.stability.ai/dashboard/api-keys; key sent in Authorization header; credits $1 per 100 from the Billing dashboard · accessed 25 October 2026 · official
  2. Stability AI docs - Pricing 1 credit = $0.01; 25 free credits for new users; per-service credit costs; buy credits from the billing dashboard · accessed 25 October 2026 · official
  3. Stability AI docs - FAQs Rate limit 150 requests per 10 seconds, 429 blocks for 60 seconds; 401/402 errors; invoice billing for large purchases; outputs usable commercially if not infringing copyright; API governed by ToS, AUP and Privacy Policy · accessed 25 October 2026 · official
  4. Stability AI Terms of Service (effective 2026-09-30) Terms cover the API; credits non-refundable and expire one year after purchase or issuance; no buying, selling or transferring API keys; no reselling except as an integrated component; no training competing models; user owns Output; 18+ for non-audio services · accessed 25 October 2026 · official
  5. Stability AI License (Community and Enterprise) Community licence free for organisations under USD 1M annual revenue; Enterprise licence needed for commercial use above USD 1M; API providers listed as an Enterprise audience · accessed 25 October 2026 · official
  6. Stability AI Acceptable Use Policy Policy covers APIs; prohibited content categories; violations may lead to suspension or termination · accessed 25 October 2026 · official

Provider rules change. This page is generated from verapli registry version 2026.1025.387; spotted something out of date? Tell us. Stability AI is not affiliated with verapli.