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Membership-ready REST API

Diagram generation API for apps, publishers, and education platforms

Use ConceptViz from your own product or content workflow. API access is available with Yearly or Lifetime membership: create keys, use shared membership credits on Studio and API, and buy dedicated API packs that never expire.

View membership plansView API docs
generate.ts
const response = await fetch('https://conceptviz.app/api/v1/generate', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer cvk_your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    prompt: 'Labeled photosynthesis diagram for a biology lesson',
    model: 'cv-2',
    mode: 'standard',
    quality: '2k',
    aspectRatio: '16:9'
  })
});

const task = await response.json();
console.log(task.taskId, task.credits_used);
Yearly / LifetimeAccess
Never expireCredits
Up to 4KOutput
API capabilities

Everything you need to generate diagrams in code

Text-to-diagram generation

Turn structured prompts into classroom, publication, and product-ready diagrams through a simple REST endpoint.

CV-1, CV-2 Standard, CV-2 Max

Choose the right generation strength for each request. CV-2 Standard is the default CV-2 mode; Max is available for heavier final-quality work.

Async task polling

Submit a generation task, poll for completion, and store the returned image URLs and usage metadata in your own workflow.

API key management

Yearly and Lifetime members can create API keys in account settings, manage usage, and purchase dedicated API credit packs when needed. Existing API customers keep their access.

How access works

Membership unlocks API access

Yearly and Lifetime include shared membership credits for Studio and API. Members can also buy dedicated API-only packs that never expire. Existing API customers keep their access.

Step 01

Become a Yearly or Lifetime member

API key creation and API credit pack purchases are available with membership. Existing API customers keep their access under the new rules.

Step 02

Create API keys

After membership is active, open API settings to create and manage keys.

Step 03

Generate by usage

Each request uses membership credits or dedicated API credits based on model, quality, and image count.

API credit packs

API credit packs for members

Yearly and Lifetime members can buy dedicated API-only packs that never expire. Membership credits are shared between Studio and API from one balance.

Starter

$10
25 credits · $0.40 per API credit
View membership plans

Growth

Popular
$50
130 credits · $0.38 per API credit
View membership plans

Scale

$100
280 credits · $0.36 per API credit
View membership plans

Team

$250
750 credits · $0.33 per API credit
View membership plans

Business

$500
1,600 credits · $0.31 per API credit
View membership plans

Need more than the Business pack?

Contact us for high-volume API needs, purchasing questions, or workflow fit.

Contact us
Where teams use it

Built for diagram-heavy products and content operations

The API is designed for repeatable scientific and educational visuals, not one-off image experiments.

Educational publishers

Generate consistent figures for textbooks, worksheets, revision material, and localized editions.

EdTech platforms

Create diagrams inside lessons, quizzes, tutoring flows, and adaptive content tools.

Internal content teams

Automate visual creation for training, documentation, research summaries, and product education.

Dedicated API credits, plus shared membership credits

API packs stay API-only. Credits included with Yearly or Lifetime work on Studio and API from the same remaining balance.

  • Yearly and Lifetime members can create API keys and buy dedicated API packs.
  • Dedicated API credits never expire.
  • Existing API customers keep their access; you can top up API credits when volume grows.
Model modes

Choose the right credit cost per request

CV-1

Fast everyday diagram generation. CV-1 2K uses fewer API credits and is useful for simpler visuals.

CV-2 Standard

Default CV-2 mode for more precise scientific structure, labels, and educational diagrams.

CV-2 Max

Higher-effort CV-2 mode for dense, final-quality, print-oriented, or more complex diagram requests.

FAQ

API pricing and access

Who can use the API?

Yearly and Lifetime members can create API keys and buy dedicated API credit packs. Membership credits are shared across Studio and API. Existing API customers keep their access.

Do API credits expire?

No. Dedicated API pack credits are one-time purchases and do not expire.

Are API credits the same as web app credits?

Purchased API and Web packs remain separate. Credits included with Yearly or Lifetime are shared: each Studio or API use deducts from the same membership balance.

Which model modes are available?

The API supports CV-1, CV-2 Standard, and CV-2 Max. CV-2 Standard is the default CV-2 mode.

What if I need more than the listed packs?

Contact us and we can discuss the right API credit volume for your workflow.

What about existing API customers?

Existing API customers keep their access. Future usage is credit-based, and members can buy dedicated API packs that never expire.

Get API access with membership

Choose Yearly or Lifetime, open API settings to create keys, and buy dedicated API packs as your volume grows.

View membership plansView docs