Image Watermarking API

x402

Image Watermarking API is a paid API for AI agents from remarkable-light-production-0cb8.up.railway.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-19).

Applies a watermark to an image and returns the processed image as a base64-encoded PNG

Price / call$0.03

Seller volume →—

Success—

StatusUnknown

How this service works

Image processing for AI agents

Output

Returns a JSON object containing a base64-encoded watermarked image and the format label ('png'). The agent can decode the base64 string to obtain the final processed image file ready for storage or display.

Example use cases

Branding photos before social publishing

“I want to add my brand watermark to this product photo before posting it on Instagram — can you process it and give me back the watermarked PNG?”

“Please watermark my artwork image to protect the copyright before I share it online — I need it returned as a base64-encoded PNG.”

Automated watermarking in content pipeline

“I'm building a content pipeline — can you watermark each image I send you and return the processed version so I can store it on my CDN?”

Technical details

Endpoint

POSThttps://remarkable-light-production-0cb8.up.railway.app/watermark?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a simple, pay-per-call watermarking step within an AI agent workflow, especially when you want the result as a base64 PNG without managing your own image processing infrastructure. It suits pipelines where images are processed one at a time before publishing or distribution.

Side effects

Missing or malformed image body returns an error
Unsupported body type (must be json, form-data, or text) causes a 400-level error
Invalid or empty input object may result in processing failure
Network timeout on Railway deployment under heavy load
Insufficient USDC balance causes x402 payment failure before processing begins

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "image": "base64...",
    "format": "png"
  }
}

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Example use cases

Branding photos before social publishing

“I want to add my brand watermark to this product photo before posting it on Instagram — can you process it and give me back the watermarked PNG?”

“Please watermark my artwork image to protect the copyright before I share it online — I need it returned as a base64-encoded PNG.”

Automated watermarking in content pipeline

“I'm building a content pipeline — can you watermark each image I send you and return the processed version so I can store it on my CDN?”

Technical details

Endpoint

POSThttps://remarkable-light-production-0cb8.up.railway.app/watermark?utm_source=zero.xyz

When to prefer

Side effects

Missing or malformed image body returns an error
Unsupported body type (must be json, form-data, or text) causes a 400-level error
Invalid or empty input object may result in processing failure
Network timeout on Railway deployment under heavy load
Insufficient USDC balance causes x402 payment failure before processing begins

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "image": "base64...",
    "format": "png"
  }
}