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本文介紹 Nano Banana Images API 的對接與使用。該接口支持兩種能力:圖像生成(generate) 與 圖像編輯(edit)。
申請流程
使用前,請在 XHuoAPI 平台中進入 Nano Banana Images API 並點擊 Acquire 申請開通。首次申請通常會有免費額度可用。開通完成後,即可在平台中獲取到用於調用 API 的 Bearer Token。
接口概覽
- Base URL:
https://api.xhuoapi.ai/v1
- Endpoint:
POST /nano-banana/images
- 認證方式:HTTP Header 中攜帶
authorization: Bearer {token}
- 請求頭:
accept: application/json
content-type: application/json
- 動作(action):
generate:根據文本提示詞生成圖片
edit:基於給定圖片進行編輯
- 模型(model)(可選):
nano-banana(默認):基於 Gemini 2.5 Flash Image,速度快,成本低
nano-banana-2:基於 Gemini 3.1 Flash Image Preview,Pro 級質量 + Flash 速度
nano-banana-pro:基於 Gemini 3 Pro Image Preview,最高質量
- 異步回調:可選,通過
callback_url 接收任務完成通知與結果
快速開始:生成圖片(action=generate)
最小必需參數:action、prompt
當你只想根據提示詞直接出圖時,設置 action 為 generate,並提供清晰的 prompt 即可。
請求示例(cURL)
curl -X POST 'https://api.xhuoapi.ai/v1/nano-banana/images' \
-H 'authorization: Bearer {token}' \
-H 'accept: application/json' \
-H 'content-type: application/json' \
-d '{
"action": "generate",
"prompt": "A photorealistic close-up portrait of an elderly Japanese ceramicist with deep, sun-etched wrinkles and a warm, knowing smile. He is carefully inspecting a freshly glazed tea bowl. The setting is his rustic, sun-drenched workshop. The scene is illuminated by soft, golden hour light streaming through a window, highlighting the fine texture of the clay. Captured with an 85mm portrait lens, resulting in a soft, blurred background (bokeh). The overall mood is serene and masterful. Vertical portrait orientation.",
"count": 1
}'
請求示例(Python)
import requests
url = "https://api.xhuoapi.ai/v1/nano-banana/images"
headers = {
"authorization": "Bearer {token}",
"accept": "application/json",
"content-type": "application/json",
}
payload = {
"action": "generate",
"prompt": (
"A photorealistic close-up portrait of an elderly Japanese ceramicist "
"with deep, sun-etched wrinkles and a warm, knowing smile. He is carefully "
"inspecting a freshly glazed tea bowl. The setting is his rustic, sun-drenched "
"workshop. The scene is illuminated by soft, golden hour light streaming through "
"a window, highlighting the fine texture of the clay. Captured with an 85mm "
"portrait lens, resulting in a soft, blurred background (bokeh). The overall mood "
"is serene and masterful. Vertical portrait orientation."
),
"count": 1
}
resp = requests.post(url, json=payload, headers=headers)
print(resp.json())
成功返回示例
{
"success": true,
"task_id": "056f0589-a3dd-4ec2-8440-ad61f5038dfa",
"trace_id": "c48de83f-0077-426e-b02b-ff1d58179064",
"data": [
{
"prompt": "A photorealistic close-up portrait of an elderly Japanese ceramicist with deep, sun-etched wrinkles and a warm, knowing smile. He is carefully inspecting a freshly glazed tea bowl. The setting is his rustic, sun-drenched workshop. The scene is illuminated by soft, golden hour light streaming through a window, highlighting the fine texture of the clay. Captured with an 85mm portrait lens, resulting in a soft, blurred background (bokeh). The overall mood is serene and masterful. Vertical portrait orientation.",
"image_url": "https://platform.cdn.xhuoapi.ai/nanobanana/69790adb-c85d-4362-ad9e-0c9ba4352cf4.png"
}
]
}
字段說明
success:本次請求是否成功。
task_id:任務 ID。
trace_id:鏈路追蹤 ID,便於排查問題。
data[]:結果列表。
prompt:用於生成的提示詞(回顯)。
image_url:生成圖片的直鏈 URL。
注:/nano-banana/images 僅需 action 與 prompt 即可生成圖片
編輯圖片(action=edit)
當你希望基於已有圖片進行編輯時,設置 action 為 edit,並通過 image_urls 傳入待編輯的圖片鏈接列表(1 張或多張),同時提供描述編輯目標的 prompt。
比如這裡我們提供一張人物照片,一張衣服照片,讓人物穿上這個衣服,就可以同時傳入圖片鏈接,並且指定 action 為 edit,URL 可以是 HTTP URL,以 https 或 http 協議的公開可訪問鏈接,也可以是 Base64 編碼的圖片,如 data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA+gAAAVGCAMAAAA6u2FyAAADAFBMVEXq6uwdHCEeHyMdHS....
請求示例(cURL)
curl -X POST 'https://api.xhuoapi.ai/v1/nano-banana/images' \
-H 'authorization: Bearer {token}' \
-H 'accept: application/json' \
-H 'content-type: application/json' \
-d '{
"action": "edit",
"prompt": "let this man wear on this T-shirt",
"image_urls": [
"https://cdn.xhuoapi.ai/v8073y.png",
"https://cdn.xhuoapi.ai/44xlah.png"
],
"count": 1
}'
請求示例(Python)
import requests
url = "https://api.xhuoapi.ai/v1/nano-banana/images"
headers = {
"authorization": "Bearer {token}",
"accept": "application/json",
"content-type": "application/json",
}
payload = {
"action": "edit",
"prompt": "let this man wear on this T-shirt",
"image_urls": [
"https://cdn.xhuoapi.ai/v8073y.png",
"https://cdn.xhuoapi.ai/44xlah.png"
],
"count": 1
}
resp = requests.post(url, json=payload, headers=headers)
print(resp.json())
成功返回示例
{
"success": true,
"task_id": "93f11baf-347b-4bb4-9520-8653cb46d6a3",
"trace_id": "a9063166-26ed-4451-85b5-54e896817c69",
"data": [
{
"prompt": "let this man wear on this T-shirt",
"image_url": "https://platform.cdn.xhuoapi.ai/nanobanana/8e9e0253-26f4-45b9-b3f8-ac1aed1c284b.png"
}
]
}
字段說明
image_urls[]:待編輯圖片 URL 列表(必須可公網訪問)。可傳多張,服務會結合這些素材與 prompt 完成編輯。
- 其餘字段同「生成圖片」返回。
異步回調(可選,推薦)
生成或編輯可能需要一定時間。為避免長連接佔用資源,建議通過 callback_url 使用 Webhook 回調:
- 在請求體中添加
callback_url,例如你的服務端 Webhook 地址(需可公網訪問,支持 POST JSON)。
- API 會 立即返回 包含
task_id 的響應(或包含基本結果)。
- 當任務完成後,平台將以
POST 的方式將完整 JSON 發送至 callback_url。你可以通過 task_id 將請求與結果關聯。
回調載荷示例(字段結構與同步成功返回一致):
{
"success": true,
"task_id": "6a97bf49-df50-4129-9e46-119aa9fca73c",
"trace_id": "9b4b1ff3-90f2-470f-b082-1061ec2948cc",
"data": [
{
"prompt": "a white siamese cat",
"image_url": "https://platform.cdn.xhuoapi.ai/nanobanana/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.png"
}
]
}
錯誤處理
調用失敗時會返回標準錯誤格式與追蹤 ID。常見錯誤如下:
- 400
token_mismatched:請求不合法或參數錯誤。
- 400
api_not_implemented:接口未實現(請聯繫支持)。
- 401
invalid_token:鑑權失敗或缺少 Token。
- 429
too_many_requests:請求頻率超限。
- 500
api_error:服務端異常。
錯誤響應示例
{
"success": false,
"error": {
"code": "api_error",
"message": "Internal server error."
},
"trace_id": "2cf86e86-22a4-46e1-ac2f-032c0f2a4e89"
}
參數對照與注意事項
- 必填:
action、prompt
- 編輯專用:
image_urls(數組,至少 1 項)
- 可選:
model(默認 nano-banana,可選 nano-banana-2 或 nano-banana-pro)、aspect_ratio(寬高比,如 1:1、16:9)、resolution(分辨率,如 1K、2K、4K)、callback_url(用於異步回調)
- Headers:必須提供
authorization: Bearer {token};accept 建議設為 application/json
- 圖片可訪問性:
image_urls 必須為可公網訪問的直鏈(HTTP/HTTPS),建議使用 HTTPS
- 幂等與追蹤:保留
task_id 與 trace_id,便於故障排查與結果關聯