Kling 3.0 Pro API: fal.ai's video-generation model, one key away
Kling 3.0 Pro via the ApexApi gateway
Kling 3.0 Pro is a video-generation model from fal.ai. Call it through ApexApi's unified, OpenAI-compatible API with one `ak-` key, alongside every other model in the catalog. Pricing is $0.134–$0.202/sec per second, billed pay-per-use from your credit balance with no subscription.
Kling 3.0 Pro is served through ApexApi's unified, OpenAI-compatible API. One key, one format, with smart routing and automatic failover. Provider: fal.ai.
Why Kling 3.0 Pro
AI video generation
Text-to-video (and image-to-video where supported) via a simple async job.
Per-second pricing ($0.134–$0.202/sec)
Pay only for what you generate from your credit balance. No subscription.
OpenAI-compatible
Drop-in with any OpenAI SDK. Change the base URL and key, keep your code.
Specifications
- Modality
- video
- Context window
- —
- Max output
- —
- Streaming
- —
- Tool / function calling
- —
- Vision input
- —
Kling 3.0 Pro pricing
Pay-per-use. No subscription, no minimums. Buy credits and pay only for what you call. Transparent, per-call pricing across every model.
Getting started with Kling 3.0 Pro
OpenAI-compatible. Point your client at ApexApi, swap your key, and call it. No new SDK to learn.
import requests, time
job = requests.post(
"https://api.apexapi.dev/v1/videos/generations",
headers={"Authorization": "Bearer <YOUR_APEXAPI_KEY>"},
json={"model": "kuaishou/kling-video/v3/pro/image-to-video", "prompt": "A drone shot over a neon city at night", "duration": 5},
).json()
# Poll until the async job completes
while True:
res = requests.get(
f"https://api.apexapi.dev/v1/videos/generations/{job['id']}",
headers={"Authorization": "Bearer <YOUR_APEXAPI_KEY>"},
).json()
if res["status"] in ("completed", "failed"):
print(res)
break
time.sleep(3)Kling 3.0 Pro use cases
What teams build with Kling 3.0 Pro on ApexApi.
Short-form content
Generate clips for social, ads, and marketing.
Product & explainer
Turn prompts or images into motion for launches and demos.
Creative prototyping
Explore video concepts fast before a full production.
Kling 3.0 Pro vs other models
How it compares, and on ApexApi you can switch between any of them with a single string change, same key, same endpoint.
Kling 3.0 Pro vs Veo 3.1
Compare Kling 3.0 Pro against this model on price, capabilities, and latency. A/B them with a single key on ApexApi.
Learn more about Veo 3.1 API →Kling 3.0 Pro vs Seedance 2.0
Compare Kling 3.0 Pro against this model on price, capabilities, and latency. A/B them with a single key on ApexApi.
Learn more about Seedance 2.0 API →Why build on ApexApi
One API, every model
OpenAI-compatible. Swap the base URL and key, keep your code. Call 14+ providers and hundreds of models through a single integration.
Smart routing & failover
Per-model provider chains with automatic failover. If one provider degrades, requests route to the next. Your app stays up.
Pay-per-use, no lock-in
Buy credits, pay only for what you call. No subscriptions, no minimums. Switch models anytime with a single string change.
Kling 3.0 Pro API: FAQ
How do I use the Kling 3.0 Pro API?
Create an ApexApi key, then point your client at https://api.apexapi.dev/v1 and use the model slug. POST to /v1/videos/generations with the model slug and a prompt, then poll the returned job id.
Is the Kling 3.0 Pro API OpenAI-compatible?
Yes. ApexApi exposes Kling 3.0 Pro through the same OpenAI-compatible interface used across the whole catalog. Swap the base URL and API key and keep your existing code.
How much does Kling 3.0 Pro cost on ApexApi?
Pay-per-use. See the live price in the Pricing section above. There's no subscription or minimum; you buy credits and pay only for what you call.
Can I switch from Kling 3.0 Pro to another model later?
Yes. Change a single string (the model slug) to call any other model in the catalog through the same endpoint and key. No re-integration.
Ready to build with Kling 3.0 Pro?
One API key. Every major AI model. Pay only for what you use.
Get your API key, free to start