使用你的工具生成视频与图像
创建密钥,使用 Bearer 认证调用 API,并轮询任务状态直到结果就绪。适用于 Claude Code、Codex 及任何 HTTP 客户端。
本页
快速入门
- 1
- 2
调用API
使用您的 Bearer 密钥和 Idempotency-Key 标头发送 POST 请求。
curl -X POST https://www.seedance2ai.io/api/v1/video/seedance2 \ -H "Authorization: Bearer $SEEDANCE_API_KEY" \ -H "Content-Type: application/json" \ -H "Idempotency-Key: demo-video-001" \ -d '{ "mode": "text-to-video", "quality_tier": "standard", "prompt": "A cinematic shot of a glass train crossing a snowy mountain bridge", "aspect_ratio": "16:9", "duration": "5", "resolution": "720p" }' - 3
获取结果
轮询任务状态端点,直到状态变为“已完成”或“失败”,然后读取输出。
while true; do TASK=$(curl -s https://www.seedance2ai.io/api/v1/tasks/sd2_xxxxx \ -H "Authorization: Bearer $SEEDANCE_API_KEY") STATUS=$(echo "$TASK" | jq -r '.status') if [ "$STATUS" = "completed" ] || [ "$STATUS" = "failed" ]; then echo "$TASK" | jq break fi sleep 10 done
身份验证
所有请求均需在 Authorization 标头中携带 Bearer API 密钥进行身份验证。
- Base URL
https://www.seedance2ai.io/api/v1- Idempotency-Key
- Send a unique value with every POST. Retrying with the same key and body within 24 hours returns the original task instead of charging for a second one.
- Credits
- Calls spend credits from the key owner's personal balance. Team credits are not used.
- Media URLs
- Reference images, videos and audio must be public HTTPS URLs that can be fetched without cookies or a login.
Authorization: Bearer sk_live_your_api_key
Content-Type: application/json
Idempotency-Key: a-unique-id-per-requestSeedance 2.0 Video
文本、图像或媒体转视频
- Modes
- Text, image, reference media
- Duration
- 4 to 15 seconds
- Quality tiers
- mini, standard, pro
- Task ID
- sd2_…
提交任务
/api/v1/video/seedance2参数
modestring选填默认text-to-videoGeneration mode.
text-to-videoimage-to-videomedia-to-videoquality_tierstring选填默认standardQuality tier.
ministandardprochannelstring选填默认standardRendering channel.
standardrealwildpromptstring必填Text prompt.
3–10000 charsaspect_ratiostring选填默认16:9Aspect ratio.
1:121:94:33:416:99:16adaptivedurationstring选填默认5Clip duration.
4–15 (seconds)resolutionstring选填默认720pOutput resolution. 1080p-plus and 4k are available on pro only.
720p1080p1080p-plus4kimage_urlstring (URL)选填Start frame — required for image-to-video.
public https URL, ≤ 30 MBend_image_urlstring (URL)选填Optional end frame.
public https URL, ≤ 30 MBmedia_urlsstring[] (URL)选填Required for media-to-video. Images are limited to 30 MB; video URLs must support duration probing.
≤ 12 public https image/video URLsgenerate_audioboolean选填默认trueGenerate an audio track.
truefalsefixed_lensboolean选填默认falseLock the camera lens.
truefalseseedinteger选填Optional deterministic seed.
-1 – 4294967295
Seedance prompt guide
Seedance prompts work best as concrete director instructions. Describe the subject, action, scene, camera motion, visual style, and constraints, then map every reference asset to the right API parameter.
- Use image_url for the opening frame, end_image_url for the closing frame, and media_urls for character, motion, style, source-video, or extension references.
- Describe asset roles in natural language inside prompt. Do not send raw asset ids, asset:// URLs, or in-app-only labels such as @图片1.
- For edits say “strictly edit the supplied source video”; for extensions say “continue from the supplied previous clip.”
- For complex scenes, use ordered shots plus a style and constraint package: stable faces, natural motion, no deformation, no watermark, no logo, and no subtitles unless intended.
请求
curl -X POST https://www.seedance2ai.io/api/v1/video/seedance2 \
-H "Authorization: Bearer $SEEDANCE_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: demo-video-001" \
-d '{
"mode": "text-to-video",
"quality_tier": "standard",
"prompt": "A cinematic shot of a glass train crossing a snowy mountain bridge",
"aspect_ratio": "16:9",
"duration": "5",
"resolution": "720p"
}'响应202
{
"id": "sd2_xxxxx",
"status": "processing",
"model": "seedance2",
"quality_tier": "standard",
"channel": "standard",
"credits_used": 30
}示例中的 credits_used 数值仅供说明。实际消耗会在提交时计算,并由 API 返回。
查看任务状态
/api/v1/tasks/{id}status
processing- Accepted and running. Keep polling.
completed- Finished. Read output, or result_urls for a flat list of files.
failed- Ended without a result. error says why and credits_refunded shows what was returned.
Poll every 10 seconds or so and stop at completed or failed. Status reads have their own rate limit, so polling never uses up your submit budget.
请求
curl https://www.seedance2ai.io/api/v1/tasks/sd2_xxxxx \
-H "Authorization: Bearer $SEEDANCE_API_KEY"响应200
{
"id": "sd2_xxxxx",
"type": "video",
"status": "completed",
"model": "seedance2",
"quality_tier": "standard",
"channel": "standard",
"resolution": "720p",
"credits_used": 30,
"credits_refunded": 0,
"output": {
"video_url": "https://...",
"last_frame_url": "https://...",
"seed": 123
},
"result_urls": ["https://..."],
"error": null,
"created_at": "2026-06-03T10:00:00.000Z",
"updated_at": "2026-06-03T10:03:12.000Z"
}Wait for the result
while true; do
TASK=$(curl -s https://www.seedance2ai.io/api/v1/tasks/sd2_xxxxx \
-H "Authorization: Bearer $SEEDANCE_API_KEY")
STATUS=$(echo "$TASK" | jq -r '.status')
if [ "$STATUS" = "completed" ] || [ "$STATUS" = "failed" ]; then
echo "$TASK" | jq
break
fi
sleep 10
doneTasks and balance
Read endpoints for building a task history, showing remaining credits, or discovering models at runtime. They share the read rate limit.
List tasks
/api/v1/tasksReturns the tasks this account created through the API in the last 30 days, newest first. Each item has the same shape as a single task. Use limit (1 to 50, default 20) and pass next_cursor as before to fetch the next page.
curl "https://www.seedance2ai.io/api/v1/tasks?limit=20" \
-H "Authorization: Bearer $SEEDANCE_API_KEY"{
"data": [
{
"id": "sd2_xxxxx",
"type": "video",
"status": "completed",
"model": "seedance2",
"credits_used": 30,
"result_urls": ["https://..."]
}
],
"has_more": false,
"next_cursor": null
}Check balance
/api/v1/balanceReturns the credits the key owner can spend through the API. subscription_credits is the part that came from a plan and expires at subscription_credits_expire_at.
curl "https://www.seedance2ai.io/api/v1/balance" \
-H "Authorization: Bearer $SEEDANCE_API_KEY"{
"credits": 1200,
"subscription_credits": 1000,
"subscription_credits_expire_at": "2026-07-01T00:00:00.000Z"
}List models
/api/v1/modelsReturns every model the API serves with its endpoint, accepted modes and task ID prefix. Useful for building a model picker without hard-coding this page.
curl "https://www.seedance2ai.io/api/v1/models" \
-H "Authorization: Bearer $SEEDANCE_API_KEY"{
"data": [
{
"id": "seedance2",
"name": "Seedance 2.0",
"type": "video",
"method": "POST",
"endpoint": "/api/v1/video/seedance2",
"modes": ["text-to-video", "image-to-video", "media-to-video"],
"task_id_prefix": "sd2_"
}
]
}错误码
Every error has the same shape. Branch on code, and show message to a person. A task that was accepted can still fail later, so also check status when you poll.
{
"error": {
"code": "invalid_request",
"message": "Invalid request body: prompt: String must contain at least 3 character(s)"
}
}| 代码 | HTTP | 含义 |
|---|---|---|
unauthorized | 401 | Missing, invalid, or revoked API key. |
invalid_request | 400 | Bad input or unsupported field. The message names the first field that failed; details lists them all. |
purchase_required | 403 | Seedance 2.5 requires a successful credits or plan purchase; free promotional credits alone do not unlock it. The GPT Image 2.5 economy channel has the same requirement. |
insufficient_credits | 402 | Not enough credits. Seedance 2.5 always returns HTTP 402 with insufficient_credits; when an authoritative quote is available, it may also include required_credits, available_credits, pricing_version, and promotion_applied. |
rate_limited | 429 | Too many requests for this account. See Rate limits below. Seedance requests that validate reference media are limited to 3 per 60 seconds per account and source IP, with a project-wide safety cap. Retry after the Retry-After response header (in seconds). |
idempotency_conflict | 409 | Same Idempotency-Key reused with a different body, or still running. |
service_busy | 503 | Temporary upstream or credit-concurrency issue. Retry. |
not_found | 404 | Task does not exist or does not belong to this key owner. |
internal_error | 500 | Unexpected server-side failure. |
Rate limits
A request over the limit returns HTTP 429 with a Retry-After header in seconds, plus X-RateLimit-Limit and X-RateLimit-Reset. Wait that long, then retry with the same Idempotency-Key.
- Submit a job
- 30 per 60 seconds
- Every POST endpoint, counted per account across all of its keys.
- Read
- 120 per 60 seconds
- Task status, task list, balance and models. Counted separately, so polling never uses up the submit budget.
- Reference media validation
- 3 per 60 seconds
- Seedance requests that include reference media, per account and source IP.
配合 Claude Code 使用
使用 Copy for AI 将完整 API 导出为整洁的 Markdown,粘贴到 Claude Code 或 Codex 中,让智能体完成集成。或者直接将智能体指向原始文本端点。
Skill
将 Seedance 技能安装到 Claude Code、Codex 或任何 agent 中——它能为你编写电影级提示词,并通过 API 直接渲染成片。
# Download the one-file skill from Seedance 2.0 AI
mkdir -p ~/.claude/skills/seedance
curl --fail --location -H "Authorization: Bearer $SEEDANCE_API_KEY" https://www.seedance2ai.io/downloads/seedance-skill.md -o ~/.claude/skills/seedance/SKILL.md.tmp &&
mv ~/.claude/skills/seedance/SKILL.md.tmp ~/.claude/skills/seedance/SKILL.md常见问题
- 谁可以使用 API?
- 任何拥有积分的用户均可使用。无套餐限制——任何持有积分的账户均可创建密钥并调用API。
- 如何获取积分?
- 在定价页面充值或订阅,积分将即时到账。
- 网站和API的积分是否共享?
- 是的——您的个人积分余额可用于网页生成和 API 调用。在团队中,API 调用使用每位成员自己的个人余额,而非团队共享积分池。
- 如何开始?
- 在控制面板中创建一个 API 密钥,然后使用 Bearer 令牌调用接口(参见上方快速入门指南)。
- 若调用返回 insufficient_credits,该如何处理?
- 您的余额不足——请在定价页面充值后重试。