API Pública

Gere vídeos e imagens com suas próprias ferramentas

Crie uma chave, chame a API com autenticação Bearer e consulte o status da tarefa até que seu resultado esteja pronto. Funciona com Claude Code, Codex e qualquer cliente HTTP.

Gerenciar chaves

Início Rápido

  1. 1

    Criar uma chave

    Gere uma chave de API no seu painel. Ela só é exibida uma vez, então guarde-a em um local seguro.

  2. 2

    Chamar a API

    Envie uma requisição POST com sua chave Bearer e o cabeçalho Idempotency-Key.

    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. 3

    Coletar o resultado

    Consulte o endpoint de status da tarefa até que o status seja 'completed' ou 'failed', e então leia a saída.

    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

Autenticação

Cada requisição é autenticada com uma chave de API Bearer no cabeçalho Authorization.

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.
http
Authorization: Bearer sk_live_your_api_key
Content-Type: application/json
Idempotency-Key: a-unique-id-per-request

Seedance 2.0 Video

Texto, imagem ou mídia para vídeo.

Modes
Text, image, reference media
Duration
4 to 15 seconds
Quality tiers
mini, standard, pro
Task ID
sd2_…
1

Enviar um trabalho

POST
/api/v1/video/seedance2

Parâmetros

  • modestringOpcionalPadrão text-to-video

    Generation mode.

    text-to-videoimage-to-videomedia-to-video
  • quality_tierstringOpcionalPadrão standard

    Quality tier.

    ministandardpro
  • channelstringOpcionalPadrão standard

    Rendering channel.

    standardrealwild
  • promptstringObrigatório

    Text prompt.

    3–10000 chars
  • aspect_ratiostringOpcionalPadrão 16:9

    Aspect ratio.

    1:121:94:33:416:99:16adaptive
  • durationstringOpcionalPadrão 5

    Clip duration.

    4–15 (seconds)
  • resolutionstringOpcionalPadrão 720p

    Output resolution. 1080p-plus and 4k are available on pro only.

    720p1080p1080p-plus4k
  • image_urlstring (URL)Opcional

    Start frame — required for image-to-video.

    public https URL, ≤ 30 MB
  • end_image_urlstring (URL)Opcional

    Optional end frame.

    public https URL, ≤ 30 MB
  • media_urlsstring[] (URL)Opcional

    Required for media-to-video. Images are limited to 30 MB; video URLs must support duration probing.

    ≤ 12 public https image/video URLs
  • generate_audiobooleanOpcionalPadrão true

    Generate an audio track.

    truefalse
  • fixed_lensbooleanOpcionalPadrão false

    Lock the camera lens.

    truefalse
  • seedintegerOpcional

    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.

Requisição

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"
  }'

Resposta202

json
{
  "id": "sd2_xxxxx",
  "status": "processing",
  "model": "seedance2",
  "quality_tier": "standard",
  "channel": "standard",
  "credits_used": 30
}

Os valores de credits_used mostrados nestes exemplos são ilustrativos. O consumo real é calculado no envio e retornado pela API.

2

Verificar status da tarefa

GET
/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.

Requisição

curl https://www.seedance2ai.io/api/v1/tasks/sd2_xxxxx \
  -H "Authorization: Bearer $SEEDANCE_API_KEY"

Resposta200

json
{
  "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
done

Tasks 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

GET
/api/v1/tasks

Returns 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"
json
{
  "data": [
    {
      "id": "sd2_xxxxx",
      "type": "video",
      "status": "completed",
      "model": "seedance2",
      "credits_used": 30,
      "result_urls": ["https://..."]
    }
  ],
  "has_more": false,
  "next_cursor": null
}

Check balance

GET
/api/v1/balance

Returns 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"
json
{
  "credits": 1200,
  "subscription_credits": 1000,
  "subscription_credits_expire_at": "2026-07-01T00:00:00.000Z"
}

List models

GET
/api/v1/models

Returns 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"
json
{
  "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_"
    }
  ]
}

Códigos de erro

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.

json
{
  "error": {
    "code": "invalid_request",
    "message": "Invalid request body: prompt: String must contain at least 3 character(s)"
  }
}
CódigoHTTPSignificado
unauthorized401Missing, invalid, or revoked API key.
invalid_request400Bad input or unsupported field. The message names the first field that failed; details lists them all.
purchase_required403Seedance 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_credits402Not 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_limited429Too 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_conflict409Same Idempotency-Key reused with a different body, or still running.
service_busy503Temporary upstream or credit-concurrency issue. Retry.
not_found404Task does not exist or does not belong to this key owner.
internal_error500Unexpected 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.

Use com Claude Code

Use o Copy for AI para exportar a API completa como Markdown limpo, cole no Claude Code ou Codex e deixe o agente configurar a integração. Ou aponte o agente diretamente para o endpoint de texto bruto.

Skill

Instale a skill Seedance no Claude Code, no Codex ou em qualquer agente — ela escreve prompts cinematográficos e os renderiza através da API para você.

bash
# 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

Perguntas Frequentes

Quem pode usar a API?
Qualquer pessoa com créditos. Não há restrição de plano — qualquer conta com créditos pode criar uma chave e chamar a API.
Como consigo créditos?
Recarregue ou assine na página de preços. Os créditos são adicionados ao seu saldo instantaneamente.
Os créditos são compartilhados entre o site e a API?
Sim — seu saldo pessoal de créditos é usado tanto para as gerações na web quanto para as chamadas de API. Em uma equipe, as chamadas de API consomem o saldo pessoal de cada membro, e não o saldo compartilhado da equipe.
Como começar?
Crie uma chave de API no seu painel e chame os endpoints com um token Bearer (veja o Quickstart acima).
E se uma chamada retornar 'insufficient_credits'?
Seu saldo está vazio — recarregue na página de preços e tente novamente.