Runnable Node.js and Python examples for the Google Flow API by useapi.net — generate Veo 3.1 video, Gemini Omni Flash audio-native video, and Nano Banana 2 Lite / Nano Banana 2 / Nano Banana Pro images through a simple REST API that drives your own Google Flow subscription (no Google Cloud project, API key, or per-call metering).
Each example ships JavaScript and Python implementations (.mjs and .py) driven by a prompts.json you edit. Most are batch runners: they submit every prompt in the file and download every result, so you can queue a batch and come back to the winners. ugc-product-video/ is a pipeline instead — it chains six endpoints into one finished video, checkpointing as it goes.
| Example | What it does | Tutorial | Tutorial date |
|---|---|---|---|
veo-video/ |
Batch-generate Veo 3.1 video — text-to-video, first/last-frame image-to-video | Generate Veo 3.1 video via curl | June 15, 2026 (September 11, 2026) |
images/ |
Batch-generate images with Nano Banana 2 Lite (default), Nano Banana 2, Nano Banana Pro | Generate images via curl | June 15, 2026 (September 11, 2026) |
nano-banana-compare/ |
Run one prompt through all three Nano Banana models (2 Lite, 2, Pro) and compare | Nano Banana 2 Lite vs 2 vs Pro compared | July 2, 2026 (September 11, 2026) |
omni-flash/ |
Batch-generate Gemini Omni Flash audio-native video — text-to-video, first/last-frame image-to-video, reference-to-video, video-to-video edit | Generate Omni Flash video via curl | June 15, 2026 (September 11, 2026) |
ugc-product-video/ |
Build a whole UGC product video — product sheets, a presenter, one still, an Omni 1.1 Flash clip per product, upscaled and joined | Make a UGC product video | September 4, 2026 |
n8n/ |
Ready-to-import n8n workflow: a form that generates Veo 3.1 video or Nano Banana Pro images and returns the files | n8n template #19991 | September 28, 2026 |
You need Node.js v21 or newer or Python 3.x (neither has any dependencies to install), a useapi.net API token, and a connected Google Flow account (one $15/month subscription covers every useapi.net API):
git clone https://github.com/useapi/google-flow-api.git
cd google-flow-api/veo-video
node ./google-flow.mjs <API_TOKEN> <EMAIL>
# or, equivalently, with Python:
python3 ./google-flow.py <API_TOKEN> <EMAIL>Edit prompts.json in each folder to queue your own prompts. Every supported parameter is documented on the POST /videos and POST /images endpoint pages.
- Does Google Flow have an official API or API key? No. Flow is a web app only. Veo 3.1, Omni 1.1 Flash and Nano Banana are sold separately on the metered Gemini API (Omni since June 30, 2026, about $0.10 per second of 720p video). This API drives your own Flow account with a useapi.net token instead.
- What does it cost? A flat $15/month to useapi.net plus the Google AI plan you already have. Images work even on a free Google account, and video spends your plan's Flow credits. See the pricing comparison.
- More answers: Google Flow API questions.
这是 useapi.net 托管的 Google Flow API 示例代码（Node.js 与 Python）。通过 REST API 调用 Veo 3.1 视频、Omni Flash 带音频视频，以及 Nano Banana 2 Lite / Nano Banana 2 / Nano Banana Pro 图片生成。
- 使用你自己的 Google 账号和 Google AI 订阅，已支持新域名
flow.google.com。 - 无需 Google Cloud 项目或 Gemini API Key，无需自己部署服务或维护浏览器。
- 账号通过自动化浏览器流程绑定，登录 Google 即可，无需手动复制 Cookie。
- reCAPTCHA 由服务端自动处理（首个账号赠送 300 次免费打码，之后接入你自己的打码服务）。
- 价格：useapi.net 每月 15 美元（含 3 个 Google Flow 账号及所有其他 API），加上你已有的 Google AI 订阅。图片生成在免费 Google 账号上也可使用。
中文教程（Veo 3.1、Omni 1.1 Flash、Nano Banana Pro，含价格对比与示例）：如何通过 Google Flow API 调用 Veo 3.1、Omni 1.1 Flash 和 Nano Banana Pro。快速开始见上方 Quick start，完整文档：Google Flow API。
useapi.net is an experimental REST API for AI services. The Google Flow API drives your own Google Flow / Google AI subscription, so you spend your plan's credits at consumer rates instead of metered developer-API pricing. See the model matrix and the pricing comparison on the API overview.
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The example code in this repository is released under the MIT License. It covers the example scripts only, not the useapi.net service or API.