·Quickstart
Quickstart
Get up and running with the NanoBanana API in minutes. No SDK required — it's plain HTTP.
1
Create your account
Sign up at apinanobanana.com and receive 100 free credits — no credit card required. Each credit maps to roughly one standard image generation.
2
Generate an API key
Go to Dashboard → API Keys and click Create new key. Copy and store it somewhere safe — it won't be shown again.
Your key format:
nb_sk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx3
Make your first request
Send a POST request to the generate endpoint. The API responds synchronously — no polling needed.
Tip
The prompt field supports up to 2,000 characters. More detailed prompts produce significantly better results.
4
Handle the response
The response includes both image_url (hosted for 7 days) and image_base64 (for immediate use). Display or save whichever is more convenient.