API pública

Generar video e imágenes desde tus propias herramientas

Crea una clave, llama a la API con autenticación Bearer y consulta el estado de la tarea hasta que tu resultado esté listo. Funciona con Claude Code, Codex y cualquier cliente HTTP.

Gestionar claves

Inicio rápido

  1. 1

    Crear una clave

    Genera una clave de API en tu panel de control. Solo se muestra una vez, así que guárdala en un lugar seguro.

  2. 2

    Llamar a la API

    Envía una solicitud POST con tu clave Bearer y un encabezado 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

    Consultar el resultado

    Consulta el endpoint de estado de la tarea hasta que el estado sea completado o fallido, luego lee la salida.

    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

Autenticación

Cada solicitud se autentica con una clave API Bearer en el encabezado 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, imagen o contenido multimedia a video.

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

Enviar trabajo

POST
/api/v1/video/seedance2

Parámetros

  • modestringOpcionalPredeterminado text-to-video

    Generation mode.

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

    Quality tier.

    ministandardpro
  • channelstringOpcionalPredeterminado standard

    Rendering channel.

    standardrealwild
  • promptstringObligatorio

    Text prompt.

    3–10000 chars
  • aspect_ratiostringOpcionalPredeterminado 16:9

    Aspect ratio.

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

    Clip duration.

    4–15 (seconds)
  • resolutionstringOpcionalPredeterminado 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_audiobooleanOpcionalPredeterminado true

    Generate an audio track.

    truefalse
  • fixed_lensbooleanOpcionalPredeterminado 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.

Solicitud

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"
  }'

Respuesta202

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

Los valores de credits_used mostrados en estos ejemplos son ilustrativos. El consumo real se calcula al enviar la solicitud y lo devuelve la API.

2

Verificar estado de la tarea

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.

Solicitud

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

Respuesta200

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 error

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.

Usar con Claude Code

Usa Copy for AI para exportar la API completa como Markdown limpio, pégalo en Claude Code o Codex y deja que el agente configure la integración. O apunta el agente directamente al endpoint de texto sin procesar.

Skill

Instala la habilidad Seedance en Claude Code, Codex o cualquier agente — escribe prompts cinematográficos y los renderiza a través de la API por ti.

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

Preguntas frecuentes

¿Quién puede usar la API?
Cualquiera con créditos. No hay restricción por plan — cualquier cuenta con créditos puede crear una clave y llamar a la API.
¿Cómo consigo créditos?
Recarga o suscríbete en la página de precios. Los créditos se añaden a tu saldo al instante.
¿Los créditos se comparten entre el sitio web y la API?
Sí — tu saldo de crédito personal se utiliza tanto para la generación web como para las llamadas API. En un equipo, las llamadas API usan el saldo personal de cada miembro, no el fondo compartido del equipo.
¿Cómo empiezo?
Crea una clave de API en tu panel de control, luego llama a los endpoints con un token Bearer (consulta la guía de inicio rápido arriba).
¿Qué pasa si una llamada devuelve insufficient_credits?
Tu saldo está vacío — recarga en la página de precios e inténtalo de nuevo.