Obtenir une clé API

par Krea

Le niveau le plus détaillé de Krea, pour des plans clés cinématographiques

krea/2-large/text-to-imageÀ partir de 9 créditspar image · 0,09 $US
  • Jusqu’à 10 images de référence
  • 8 formats d’image
  • Créer une image
A man seen from behind on a salt flat at sunrise, his denim shirt blown out wide on both sides like wings.Voir les exemples

Appelez-le avec le nom de modèle krea/2-large/text-to-image sur POST /jobs/createTask, à partir de 9 crédits par image (0,09 $US). Les nouveaux comptes reçoivent 30 crédits gratuits pour l’essayer d’abord dans le Playground.

Nom du modèlekrea/2-large/text-to-image
EndpointPOST https://api.popnow.ai/api/v1/jobs/createTask
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "krea/2-large/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "aspect_ratio": "1:1"
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

L’input est construit à partir du schéma ci-dessous : il passe la validation tel quel. Remplacez le prompt et les liens par les vôtres.

Prix

OptionCrédits par image≈ USD
Standard90,09 $US

1 crédit = 0,01 $ · Toutes les options et leur prix : GET /models/krea/2-large/text-to-image

Limites

Formats d’image
1:1 · 4:3 · 3:2 · 16:9 · 2.35:1 · 4:5 +2
Images de référence
10
Longueur du prompt (caractères)
5,000

Paramètres

Ces champs viennent du schéma avec lequel nous vérifions chaque requête. Les champs qui n’y figurent pas sont refusés.

  • promptstringObligatoire

    Describe the image to generate: subject, composition, style, and lighting.

    Plage
    1 – 5000 chars
  • reference_image_urlsarray<string>FacultatifModifie le prix

    Des images des personnes, tenues ou lieux que le résultat doit conserver.

    Plage
    0 – 10 items · image/jpeg, image/png, image/webp, image/gif
  • reference_strengthnumberFacultatif

    How strongly the reference images shape the result, from 0 to 1. At 1 the composition can carry over too; lower values mostly keep the palette and texture. Applies to every reference image and only matters with reference_image_urls.

    Par défaut
    1
    Plage
    0 – 1
  • aspect_ratiostringFacultatif

    La forme du cadre : large, carrée ou verticale.

    Par défaut
    "1:1"
    Valeurs acceptées
    "1:1""4:3""3:2""16:9""2.35:1""4:5""2:3""9:16"
Schéma JSON brut
{
  "additionalProperties": false,
  "properties": {
    "aspect_ratio": {
      "default": "1:1",
      "description": "Aspect ratio of the generated image.",
      "enum": [
        "1:1",
        "4:3",
        "3:2",
        "16:9",
        "2.35:1",
        "4:5",
        "2:3",
        "9:16"
      ],
      "type": "string"
    },
    "prompt": {
      "description": "Describe the image to generate: subject, composition, style, and lighting.",
      "maxLength": 5000,
      "minLength": 1,
      "type": "string"
    },
    "reference_image_urls": {
      "description": "Reference images that steer the style of the result.",
      "items": {
        "contentMediaType": [
          "image/jpeg",
          "image/png",
          "image/webp",
          "image/gif"
        ],
        "format": "uri",
        "type": "string"
      },
      "maxItems": 10,
      "type": "array"
    },
    "reference_strength": {
      "default": 1,
      "description": "How strongly the reference images shape the result, from 0 to 1. At 1 the composition can carry over too; lower values mostly keep the palette and texture. Applies to every reference image and only matters with reference_image_urls.",
      "maximum": 1,
      "minimum": 0,
      "type": "number"
    }
  },
  "required": [
    "prompt"
  ],
  "type": "object"
}

Un vrai résultat de Krea 2 Large

A man seen from behind on a salt flat at sunrise, his denim shirt blown out wide on both sides like wings.
PromptCinematic film still, salt flat at sunrise, ultra-wide 2.35:1. A man stands alone on the cracked pan, shirt completely open and blown into two sails by the wind, backlit so the rim light traces his whole silhouette while the front stays in shadow. Long lens compresses the cracked hexagons into a single sheet of gold to both edges of the frame. 65mm anamorphic, heavy grain, gold and pale mineral palette, restrained and tasteful.
La même requête via l’API
{
  "model": "krea/2-large/text-to-image",
  "input": {
    "prompt": "Cinematic film still, salt flat at sunrise, ultra-wide 2.35:1. A man stands alone on the cracked pan, shirt completely open and blown into two sails by the wind, backlit so the rim light traces his whole silhouette while the front stays in shadow. Long lens compresses the cracked hexagons into a single sheet of gold to both edges of the frame. 65mm anamorphic, heavy grain, gold and pale mineral palette, restrained and tasteful.",
    "aspect_ratio": "2.35:1"
  }
}

Réponses, interrogation et callbacks

Tous les modèles fonctionnent de la même façon : créez une tâche, puis interrogez-la ou attendez le callback.

Connaître le prix d’abord

cURL
curl -X POST https://api.popnow.ai/api/v1/jobs/quote \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "krea/2-large/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "aspect_ratio": "1:1"
  }
}'

Même corps que createTask. Renvoie le débit attendu et le débit maximal possible, sans rien lancer.

Acceptée

HTTP
HTTP/1.1 202 Accepted

{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "state": "queued"
  },
  "request_id": "req_example_create"
}

HTTP 202 signifie que la tâche est acceptée et que les crédits sont réservés, pas encore débités. Le débit final ne dépasse jamais la réservation.

Vérifier l’état

cURL
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Interrogez toutes les quelques secondes en espaçant progressivement, et arrêtez dès que state vaut succeeded, failed, canceled ou expired.

Tâche terminée

JSON
{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "model": "krea/2-large/text-to-image",
    "state": "succeeded",
    "output": {
      "assets": [
        {
          "url": "https://cdn.popnow.ai/tasks/task_01k3m8x9q2z4v7n5p6r8s0t1w3/output.png?signature=FROM_RESPONSE",
          "expiresAt": "2026-10-17T12:20:00Z",
          "mime": "image/png",
          "width": 1024,
          "height": 1024
        }
      ]
    },
    "settled": true
  },
  "request_id": "req_example_record"
}

Téléchargez depuis l’url avant expiresAt. Besoin d’un nouveau lien plus tard ? Demandez-le à POST /common/download-url.

Vérifier un callback

Node.js
import { createHash, createHmac, timingSafeEqual } from "node:crypto";
import express from "express";

const app = express();
// express.raw keeps the exact bytes that were signed; express.json would not match.
app.post("/hooks/popnow", express.raw({ type: "application/json" }), (req, res) => {
  const timestamp = req.header("X-Webhook-Timestamp");
  const signature = req.header("X-Webhook-Signature") ?? "";
  const body = JSON.parse(req.body.toString("utf8"));
  const taskId = body.data?.taskId ?? body.task_id;
  const digest = createHash("sha256").update(req.body).digest("hex");
  const expected = createHmac("sha256", process.env.POPNOW_WEBHOOK_SECRET)
    .update(`${taskId}.${timestamp}.${digest}`)
    .digest("base64");
  const ok = expected.length === signature.length && timingSafeEqual(Buffer.from(expected), Buffer.from(signature));
  // Check the signature first, then reject anything older than five minutes.
  if (!ok || Math.abs(Date.now() / 1000 - Number(timestamp)) > 300) return res.status(401).end();
  res.status(200).end(); // answer fast, then fetch the task and store its files
});

Avec une callBackUrl, nous vous envoyons la tâche terminée. Vérifiez la signature sur le corps brut avant de lui faire confiance.

Envoyer un fichier local

cURL
curl -X POST https://api.popnow.ai/api/v1/common/upload-url \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contentType": "image/png", "bytes": 482113}'

# PUT the file bytes to data.uploadUrl with every header in data.headers, then commit it:
curl -X POST https://api.popnow.ai/api/v1/files/$FILE_ID/commit \
  -H "Authorization: Bearer $POPNOW_API_KEY"
# The commit returns a popnow://f/... reference. Put it in any image, video or
# audio field of the task input instead of a public https URL.

Les liens https publics fonctionnent tels quels. Les fichiers locaux passent d’abord par upload-url et commit.