Kling AI Text to Video Serverless API

Kling AI Text-to-Video is a cutting-edge AI tool that transforms text into stunning, lifelike videos. Create professional-quality content effortlessly with Kling AI's advanced capabilities.

~320.76s
POST /v2/kling-text2video · submit + poll
 1# pip install "segmind>=1.1.0"
 2# export SEGMIND_API_KEY="YOUR_API_KEY"
 3from segmind import SegmindClient, InferenceFailed, InferenceTimeout
 4
 5# Async (v2) — recommended for long-running / video models.
 6# run() blocks up to 600s; submit_async + job.wait(timeout=...) sets a longer
 7# deadline and keeps the request_id so you can re-poll later.
 8client = SegmindClient()                      # reads SEGMIND_API_KEY
 9payload = {
10    "prompt": "A border collie, wearing clothes made of laser film, wearing a headset, VR glasses, with the Milky Way reflected in his eyes, classic black and white, high-definition quality, surrealism, microcomputer, hacker dress, cyber style, anthropomorphism, reality",
11    "negative_prompt": "No buildings, no artificial objects",
12    "cfg_scale": 0.5,
13    "mode": "std",
14    "aspect_ratio": "16:9",
15    "duration": "5",
16}
17job = client.submit_async("kling-text2video", **payload)
18print(job.request_id)                         # available immediately
19try:
20    result = job.wait(timeout=900, interval=2.0)
21    print(result["status"])                  # COMPLETED
22    print(result.get("output"))              # model output (e.g. video URL)
23except InferenceTimeout as e:
24    print("still running:", e.request_id)    # re-poll later with this id
25except InferenceFailed as e:
26    print("failed:", e.detail)
27
28# Fast models (<=600s) can use the one-liner instead:
29# result = segmind.run("kling-text2video", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/kling-text2video

Parameters

promptrequired
string

Text prompt to describe the desired image

Default: "A border collie, wearing clothes made of laser film, wearing a headset, VR glasses, with the Milky Way reflected in his eyes, classic black and white, high-definition quality, surrealism, microcomputer, hacker dress, cyber style, anthropomorphism, reality"
aspect_ratiooptional
string

Aspect ratio of the output image

Default: "16:9"
Allowed values :
"16:9""9:16""1:1"
camera_control_configoptional
string

Contains 6 Fields, used to specify the camera's movement or change in different directions

Default: ""
Allowed values :
"horizontal""vertical""pan""tilt""roll""zoom"
camera_control_config_valueoptional
integer

Config value to control camera's movement or change in different directions

Default: ""Range: -10 - 10
camera_control_typeoptional
string

Predefined camera movements type

Default: ""
Allowed values :
"simple""down_back""forward_up""right_turn_forward""left_turn_forward"
cfg_scaleoptional
number

CFG scale to control how closely the image matches the prompt (range 0-1)

Default: 0.5Range: 0 - 1
durationoptional
integer

Duration of the output in seconds

Default: 5
Allowed values :
510
modeoptional
string

std: Standard Mode, generates videos faster and has lower inference costs. pro: Professional Mode, generates videos use longer duration but higher quality video output.

Default: "std"
Allowed values :
"std""pro"
negative_promptoptional
string

Description of unwanted elements

Default: "No buildings, no artificial objects"

Response Type

Returns: Video

Asynchronous requests (v2)

Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.

  1. 1
    POST /v2/kling-text2video

    Submitreturns request_id, status_url, response_url

  2. 2
    GET /v2/requests/{id}/status

    Polluntil COMPLETED or FAILED

  3. 3
    GET /v2/requests/{id}

    Resultfinal response body

Status states

QUEUEDAccepted, waiting for a worker
PROCESSINGRunning on a worker
COMPLETEDDone — result body is ready
FAILEDErrored (incl. content/RAI blocks)
  • A FAILED request is served as HTTP 422 — the body still carries the error detail.
  • An unknown or expired request_id returns HTTP 404.
  • Results are retained for 1 hour, then expire.
  • Content / RAI blocks surface as FAILED, not a separate state.
  • Track completion by polling the status endpoint.

Common Error Codes

The API returns standard HTTP status codes. Detailed error messages are provided in the response body.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out