Quickstart for Kling pipelines

Base URL & Authentication

Use https://api.klingapis.com/v1 as your base URL. It works with any OpenAI-compatible SDK. Send your API key in the Authorization header as a Bearer token. You get one key per account, visible immediately after signup. Regenerate it anytime to revoke the old one.

Model ID: Always send "uncensored" in your requests. It is an open-weight model tuned for lawful adult use without content refusals.

First Request

Send a POST request to /v1/chat/completions to generate text. The API accepts standard OpenAI payload formats. It returns text output suitable for scripts, captions, or prompt generation.

Context Window: The model supports up to 64,000 tokens (input + output). Keep your prompts concise to maximize output length.

Hard Limit: Requests containing sexual content involving minors are always blocked.

Copycurl https://api.klingapis.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "uncensored",
    "messages": [{"role": "user", "content": "Write a blunt product review of a cheap VPN."}]
  }'

Python SDK

Use the official openai Python library. Configure the base URL and API key in your client initialization. This ensures compatibility with existing Kling pipeline scripts.

The API supports tool calling, allowing you to structure outputs for downstream processing. Use this for extracting data from transcripts or formatting script sections.

Copyfrom openai import OpenAI

client = OpenAI(base_url="https://api.klingapis.com/v1", api_key="YOUR_KEY")

resp = client.chat.completions.create(
    model="uncensored",
    messages=[{"role": "user", "content": "Summarise this thread without softening it."}],
)
print(resp.choices[0].message.content)

Node SDK

Initialize the OpenAI Node SDK with the same base URL. This integrates directly into your Node.js workflows for real-time captioning or prompt enhancement.

The uncensored model handles controversial or adult topics without standard refusals, making it ideal for diverse creative pipelines. Ensure your payload stays under 8 MB.

Copyimport OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.klingapis.com/v1", apiKey: process.env.API_KEY });

const resp = await client.chat.completions.create({
  model: "uncensored",
  messages: [{ role: "user", content: "Draft a villain monologue for my game." }],
});
console.log(resp.choices[0].message.content);

Streaming Responses (SSE)

Enable streaming by setting stream: true in your request. The API returns Server-Sent Events (SSE) for real-time token delivery. This reduces perceived latency for long scripts or detailed captions.

Handle SSE events in your client to update the UI or log output incrementally. This is critical for user-facing applications where waiting for full completion is unacceptable.

Copystream = client.chat.completions.create(
    model="uncensored",
    messages=[{"role": "user", "content": "Tell the story in second person."}],
    stream=True,
)
for chunk in stream:
    if chunk.choices and chunk.choices[0].delta.content:
        print(chunk.choices[0].delta.content, end="", flush=True)

Rate Limits & Limits

Rate Limit: 300 requests per minute per key. Exceeding this returns a 429 error.

Errors: 401 indicates an invalid or expired key. 402 means your prepaid credit is exhausted.

Body Limit: Requests must be under 8 MB. Pay-as-you-go credits never expire. Top-up from $10, with bonuses at $50 (+5%) and $100 (+10%).