Nano Banana API for Image Editing | PixelFireman
Nano Banana API

The Nano Banana API for editing photos with a prompt.

Send a photo and an instruction, get the edited image back from one call. Nano Banana is Google's Gemini 2.5 Flash Image. About $0.07 per edit, prepaid credits that never expire.

Get your API key See the call

What it is

Nano Banana is the nickname for Google's Gemini 2.5 Flash Image model, the one people reach for when they want to change a real photo rather than generate one from scratch. Swap an outfit, replace a background, drop in a product, change an object, all while the subject stays consistent. PixelFireman exposes it through the same /v1/images endpoint you already use, with Bearer auth, prepaid credits that never expire, and built in moderation on every prompt.

More details

One call, an edited image back

Post an input image (a data URI or a public https URL) plus a prompt describing the change. The response returns the edited image URL, the exact credits used, and your remaining balance.

# photo + instruction -> edited image
curl https://pixelfireman.com/v1/images \
  -H "Authorization: Bearer pf_live_..." \
  -H "content-type: application/json" \
  -d '{"image":"https://.../photo.jpg",
       "prompt":"change the jacket to bright red, keep the face"}'

# -> { "image":"https://...", "creditsUsed":11, "usage":{"creditsLeft":1389} }

A standard one megapixel edit draws about 11 credits, roughly $0.07 at the $50 Pro pack. Credits are prepaid and never expire, there is no subscription, and a failed edit is never billed. Payment is PayPal, or crypto through PayerURL.

What it is good at
Outfit and product swapsChange clothing, color or a product in a shot without a reshoot.
Background replacementPut the same subject on a new backdrop or scene.
E-commerce editsClean, restyle or recolor product photos at volume.
Consistent subjectsKeep a face or character stable across edits.
Generate as well as edit

Not every job is an edit. The same API key generates brand new images with Flux at about $6.25 per 1,000, so you can create a scene and then refine it with Nano Banana from one integration and one wallet. See the low cost image API and the developer image API pages for the generation side.

One endpoint for both: generate with Flux, edit with Nano Banana, one prepaid balance that never expires.
Questions
What is the Nano Banana API?

Google's Gemini 2.5 Flash Image model for editing a photo from a text instruction. On PixelFireman you call /v1/images with an input image and a prompt and get the edited image back.

How much does an edit cost?

About $0.07 per standard edit, roughly 11 prepaid credits for a 1 megapixel image at the Pro pack. No subscription, credits never expire, failed edits never billed.

How do I call it?

POST to /v1/images with Bearer auth, an input image and a prompt. The response returns the edited image URL, credits used and balance.

Can I generate images too?

Yes. The same key generates with Flux at about $6.25 per 1,000 and edits with Nano Banana, from one wallet.

Edit a photo with a prompt, in one call.

Create a key, buy a pack, run your first Nano Banana edit in minutes.

Get your API key Read the docs