# PayWeave Fal – ByteDance SeedDream v4 Image Edit

> PayWeave Fal – ByteDance SeedDream v4 Image Edit is a paid API for AI agents from fal.payweave.services, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Edits or transforms an existing image using ByteDance's SeedDream v4 generative model, returning a CDN-hosted output image URL.

## Facts

- Endpoint: POST https://fal.payweave.services/models/fal-ai/bytedance/seedream/v4/edit/run
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payweave-fal-bytedance-seeddream-v4-image-edit-ccc5bc75
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iI9Pu5dAUfzIeC-vwantY

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 payweave-fal-bytedance-seeddream-v4-image-edit-ccc5bc75 -d '<json body>'
```

Example prompt: Take this photo of a living room and edit it so the walls are painted dark navy blue — use the SeedDream v4 image editing model to make it look realistic and return the updated image.

## When to prefer this

Choose this endpoint when you need to edit or transform an existing image using ByteDance's SeedDream v4 model with no subscription — paying only $0.06 USDC per call via x402. Prefer it over hosted fal.ai direct access when you want pay-per-call billing via crypto micropayments and don't have a fal.ai account.

## Known failure modes

- Invalid or missing input image causes a 400-level error with a descriptive error string
- Model inference timeout returns an error status
- Unsupported edit instruction or out-of-distribution input may return a degraded or blank image
- Payment failure (insufficient USDC) results in a 402 response before inference begins
- CDN URL expiration (~24h TTL) makes the output inaccessible after the window

## How this service works

Sub-second generative AI inference — image, video, audio.

## Output

A JSON object containing a fal request ID, the model name, a 'succeeded' status, a CDN-hosted image URL (valid ~24 hours) in the output field, inference time in milliseconds, and the USD amount charged for the call. On failure, the error field contains a description.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "prompt",
    "image_urls"
   ],
   "properties": {
    "seed": {
     "type": "integer",
     "minimum": 0,
     "description": "Random seed; omit for non-deterministic outputs."
    },
    "prompt": {
     "type": "string",
     "maxLength": 5000,
     "minLength": 1,
     "description": "Text prompt describing the desired image."
    },
    "image_urls": {
     "type": "array",
     "items": {
      "type": "string",
      "format": "uri"
     },
     "maxItems": 4,
     "minItems": 1
    },
    "enable_safety_checker": {
     "type": "boolean"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payweave-fal-bytedance-seeddream-v4-image-edit-ccc5bc75/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fal.payweave.services](https://www.zero.xyz/host/fal.payweave.services/llms.txt)