BlockRun
AI tools / Image Generation API

Generate images from a text prompt, billed per image

Text-to-image across every major image model through one endpoint. Pay per image in USDC, with the exact price quoted before the request runs. No subscription.

The call

One endpoint, priced in dollars before it runs and settled in USDC. No API key and no account — the request pays for itself.

POST /api/v1/images/generations
Host: blockrun.ai

Why per call

No seat, no minimum, no contract per vendor. Each request is quoted in dollars before it runs and settles on-chain, so an agent can pay for its own work without a human holding a credit card. How the payment works →

Questions

Which image models can I call?

The full rate card is on this page, priced per image at the cheapest size each model offers, and the catalog carries the rest.

How am I billed?

Per image, at the size you request. The price is quoted in the 402 response before the image is generated.

Can I edit an existing image?

Yes — image-to-image is a separate endpoint with its own page.

Do I need an account?

No. There is no signup and no API key; a request pays for itself in USDC.