# x402engine Video Quality — Kling V3 Pro 5-Second Video Generation

> x402engine Video Quality — Kling V3 Pro 5-Second Video Generation is a paid API for AI agents from x402engine.app, paid per call via x402, $0.7/call, status unknown (last checked 2026-09-15).

Generates a production-quality 5-second video clip using Kling V3 Pro from a text prompt, with configurable aspect ratio and negative prompt, via HTTP 402 micropayment at $0.70 USDC per call.

## Facts

- Endpoint: POST https://x402engine.app/api/video/quality
- Price: $0.7/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402engine-video-quality-kling-v3-pro-5-second-video-generation-856ff3f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vIuIsL1n43YHi2cmzFS7H

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402engine-video-quality-kling-v3-pro-5-second-video-generation-856ff3f7 -d '<json body>'
```

Example prompt: Generate a 5-second cinematic video of a close-up of glowing fireflies moving through a misty forest at twilight with shallow depth of field, in 16:9 format, and avoid blur or low quality artifacts.

## When to prefer this

Choose this endpoint when you need a short, production-quality text-to-video clip (exactly 5 seconds) powered by Kling V3 Pro, accessed via a simple pay-per-call micropayment model with no subscription or API key setup. It is best suited for agents that need deterministic per-call pricing ($0.70 USDC), support for multiple aspect ratios, and no audio output for clean video composition.

## Known failure modes

- Prompt too vague or ambiguous resulting in off-target video content
- Invalid aspect_ratio value outside 16:9, 9:16, or 1:1 causing request rejection
- Payment failure or insufficient USDC balance blocking the call
- Generation timeout if Kling V3 Pro backend is under high load
- Negative prompt conflicts with main prompt causing degraded output

## How this service works

Generate a production-quality 5-second video with Kling V3 Pro

## Output

A production-quality 5-second video clip generated by Kling V3 Pro, returned as a video file or URL. The output reflects the described scene, motion, and camera direction from the prompt, rendered at the specified aspect ratio (16:9, 9:16, or 1:1) without audio.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "bodyType",
    "body",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "prompt"
     ],
     "properties": {
      "prompt": {
       "type": "string",
       "example": "Close-up of glowing fireflies moving through a forest at twilight, shallow depth of field",
       "description": "Describe the scene, motion, and camera direction"
      },
      "duration": {
       "type": "string",
       "default": "5",
       "example": "5",
       "description": "Fixed video duration"
      },
      "aspect_ratio": {
       "type": "string",
       "default": "16:9",
       "example": "16:9",
       "description": "Output aspect ratio: 16:9, 9:16, or 1:1"
      },
      "generate_audio": {
       "type": "boolean",
       "default": false,
       "example": false,
       "description": "Audio generation is fixed off for deterministic per-call pricing"
      },
      "negative_prompt": {
       "type": "string",
       "example": "blur, distortion, low quality",
       "description": "Visual qualities or artifacts to avoid"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402engine-video-quality-kling-v3-pro-5-second-video-generation-856ff3f7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402engine.app](https://www.zero.xyz/host/x402engine.app/llms.txt)