Seed3D 2.0 API
di ByteDanceModelli 3D con texture ricche da un’immagine, ottimo per i personaggi
- Da immagine a 3D
Lo chiami con il nome di modello bytedance/seed3d-2.0/image-to-3d su POST /jobs/createTask, da 0,48 USD.
bytedance/seed3d-2.0/image-to-3dPOST 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: $IDEMPOTENCY_KEY" \
-d '{
"model": "bytedance/seed3d-2.0/image-to-3d",
"input": {
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"mesh_detail": "medium"
}
}'
# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
-H "Authorization: Bearer $POPNOW_API_KEY"// Node 18+ (or any runtime with fetch). Keep the API key on your server.
const BASE = "https://api.popnow.ai/api/v1";
const headers = { Authorization: `Bearer ${process.env.POPNOW_API_KEY}` };
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
async function call(path, init = {}) {
const res = await fetch(BASE + path, { ...init, headers: { ...headers, ...init.headers } });
const body = await res.json();
if (body.code !== 200) throw new Error(`${body.code} ${body.msg}`);
return body.data;
}
const { taskId } = await call("/jobs/createTask", {
method: "POST",
headers: { "Content-Type": "application/json", "Idempotency-Key": crypto.randomUUID() },
body: JSON.stringify({
"model": "bytedance/seed3d-2.0/image-to-3d",
"input": {
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"mesh_detail": "medium"
}
}),
});
// Poll with backoff. A finished task may still be copying files: wait while an asset is pending.
let task;
for (let delay = 2000; ; delay = Math.min(delay * 1.5, 15000)) {
await sleep(delay);
task = await call(`/jobs/recordInfo?taskId=${taskId}`);
const copying = (task.output?.assets ?? []).some((a) => a.pending && !a.unavailable);
if (["succeeded", "failed", "canceled", "expired"].includes(task.state) && !copying) break;
}
if (task.state !== "succeeded") throw new Error(`${task.state}: ${task.errorMessage ?? "no detail"}`);
// Each asset has a signed url (no API key needed) that expires at expiresAt: save the file.
for (const asset of task.output.assets) console.log(asset.url);import os, time, uuid, requests
BASE = "https://api.popnow.ai/api/v1"
HEADERS = {"Authorization": f"Bearer {os.environ['POPNOW_API_KEY']}"}
def call(method, path, **kwargs):
body = requests.request(method, BASE + path, headers={**HEADERS, **kwargs.pop("headers", {})}, timeout=30, **kwargs).json()
if body["code"] != 200:
raise RuntimeError(f'{body["code"]} {body["msg"]}')
return body["data"]
task_id = call(
"POST",
"/jobs/createTask",
headers={"Idempotency-Key": str(uuid.uuid4())}, # reuse it if you retry
json={
"model": "bytedance/seed3d-2.0/image-to-3d",
"input": {
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"mesh_detail": "medium"
}
},
)["taskId"]
# Poll with backoff. A finished task may still be copying files: wait while an asset is pending.
delay = 2.0
while True:
time.sleep(delay)
task = call("GET", "/jobs/recordInfo", params={"taskId": task_id})
assets = (task.get("output") or {}).get("assets") or []
copying = any(a.get("pending") and not a.get("unavailable") for a in assets)
if task["state"] in ("succeeded", "failed", "canceled", "expired") and not copying:
break
delay = min(delay * 1.5, 15.0)
if task["state"] != "succeeded":
raise RuntimeError(f'{task["state"]}: {task.get("errorMessage", "no detail")}')
# Each asset has a signed url (no API key needed) that expires at expiresAt: save the file.
for asset in assets:
print(asset["url"])L’input è costruito dallo schema qui sotto, quindi supera la verifica così com’è. Sostituisci prompt e link con i tuoi.
Prezzo
| Opzione | USD per generazione |
|---|---|
| Standard | 0,48 USD |
Addebiti in USD · Tutte le opzioni e i prezzi: GET /models/bytedance/seed3d-2.0/image-to-3d
Limiti
- Caricamento massimo
- 10 MB
Parametri
Questi campi vengono dallo stesso schema con cui verifichiamo ogni richiesta. I campi non elencati vengono rifiutati.
image_urlstringObbligatorioL'immagine di partenza.
mesh_detailstringFacoltativoDensità della mesh: low (circa 100.000 facce), medium (circa 500.000) o high (circa 1.000.000). Tutte e tre costano uguale; i livelli più alti mantengono più dettagli e producono file più grandi.
JSON Schema completo
{
"additionalProperties": false,
"properties": {
"image_url": {
"contentMediaType": [
"image/jpeg",
"image/png",
"image/webp",
"image/gif"
],
"description": "The picture to turn into a 3D model: one object or character, fully in frame. JPEG, PNG or WebP up to 10 MB.",
"minLength": 1,
"type": "string"
},
"mesh_detail": {
"default": "medium",
"description": "Mesh density: low (about 100,000 faces), medium (about 500,000) or high (about 1,000,000). All three cost the same; higher levels keep finer detail and make larger files.",
"enum": [
"low",
"medium",
"high"
],
"type": "string"
}
},
"required": [
"image_url"
],
"type": "object"
}Risposte, polling e callback
Tutti i modelli funzionano allo stesso modo: crei un task, poi lo interroghi o aspetti la callback.
Prima il prezzo
curl -X POST https://api.popnow.ai/api/v1/jobs/quote \
-H "Authorization: Bearer $POPNOW_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/seed3d-2.0/image-to-3d",
"input": {
"image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
"mesh_detail": "medium"
}
}'Prima di eseguire, invia lo stesso corpo della richiesta a POST /jobs/quote per vedere il costo stimato e quello massimo in USD. Il preventivo non esegue alcuna richiesta né addebita il saldo.
Accettata
HTTP/1.1 202 Accepted
{
"code": 200,
"msg": "success",
"data": {
"taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
"state": "queued"
},
"request_id": "req_example_create"
}HTTP 202 indica che la richiesta è stata accettata: il massimo in USD resta riservato fino al conteggio finale. Quando una richiesta viene accettata, riserviamo l’importo massimo del preventivo sul tuo saldo API. Al termine addebitiamo l’uso effettivo, senza superare la riserva, e liberiamo il resto. Se la richiesta fallisce, l’importo riservato viene sbloccato.
Controlla lo stato
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
-H "Authorization: Bearer $POPNOW_API_KEY"Controlla ogni pochi secondi allungando via via l’intervallo e fermati quando state è succeeded, failed, canceled o expired.
Task completato
{
"code": 200,
"msg": "success",
"data": {
"taskId": "task_01k3m8x9q2z4v7n5p6r8s0t1w3",
"model": "bytedance/seed3d-2.0/image-to-3d",
"state": "succeeded",
"output": {
"assets": [
{
"url": "https://cdn.popnow.ai/tasks/task_01k3m8x9q2z4v7n5p6r8s0t1w3/output.png?signature=FROM_RESPONSE",
"expiresAt": "2026-10-17T12:20:00Z",
"mime": "image/png",
"width": 1024,
"height": 1024
}
]
},
"settled": true
},
"request_id": "req_example_record"
}Scarica dall’url prima di expiresAt. Ti serve un link nuovo più tardi? Chiedilo con POST /common/download-url.
Verifica una callback
import { createHash, createHmac, timingSafeEqual } from "node:crypto";
import express from "express";
const app = express();
// express.raw keeps the exact bytes that were signed; express.json would not match.
app.post("/hooks/popnow", express.raw({ type: "application/json" }), (req, res) => {
const timestamp = req.header("X-Webhook-Timestamp");
const signature = req.header("X-Webhook-Signature") ?? "";
const body = JSON.parse(req.body.toString("utf8"));
const taskId = body.data?.taskId ?? body.task_id;
const digest = createHash("sha256").update(req.body).digest("hex");
const expected = createHmac("sha256", process.env.POPNOW_WEBHOOK_SECRET)
.update(`${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
});Con callBackUrl impostata ti inviamo il task completato. Verifica la firma sul corpo originale della richiesta prima di elaborarlo.
Invia un file locale
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.I link https pubblici funzionano così come sono. I file locali passano prima da upload-url e commit.