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$ man add-watermark

/add-watermark

agentutility / mediakit / add-watermark
PRICE / CALL
$0.02
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
mediakit
CATEGORY
uncategorized
STATUS
live
NAME
add-watermark stamp a text or image watermark onto a pdf, image, or video file
synonym alias of watermark — reuses the canonical handler.
SYNOPSIS
POST https://x402.agentutility.ai/add-watermark
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }
↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.
DESCRIPTION

Stamp a text or image watermark onto a PDF, image, or video file. Send a file_url plus either text or image_url, with optional position, opacity, font, rotation, and margin controls, and it runs the CloudConvert watermark task and returns an output_url in the same format as the input. Covers PDFs, common raster formats like PNG/JPG/GIF/WEBP, and video formats like MP4/MOV/WEBM. Use it as a watermarking API, PDF stamping tool, or video/image branding overlay endpoint.

INPUTrequest schema
propertytypedescriptionreq?
file_urlstringURL of the PDF, image, or video to watermark. Format inferred from extension.required
textstringWatermark text. Use this or image_url, not both.optional
image_urlstringURL of an image to use as the watermark. Use this or text, not both.optional
font_sizenumberOptional. Watermark text font size, 6-400.optional
font_colorstringOptional. Text color as 6-digit hex, e.g. '#FF0000'.optional
opacitynumberOptional. Watermark opacity, 0-100.optional
rotationnumberOptional. Watermark rotation in degrees, -360 to 360.optional
position_verticalstringOptional. Vertical placement: 'top', 'center', or 'bottom'.
enum: top · center · bottom
optional
position_horizontalstringOptional. Horizontal placement: 'left', 'center', or 'right'.
enum: left · center · right
optional
OUTPUTresponse shape
fieldtypedescription
output_urlstring
watermark_typestring
input_formatstring
EXAMPLEStwo ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/add-watermark \
  -H 'Content-Type: application/json' \
  -d '{ }'
first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.
EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the add-watermark tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
tags
mediakitaddwatermarkadd-watermark
methods
POST
cluster
mediakit
price
$0.02 USDC per call
ADJACENTother endpoints in mediakit
endpointdescriptionprice
audio-loudnormNormalize audio loudness to a target LUFS level for podcasts, YouTube, and Spotify delivery.$0.02
csv-to-jsonlConverts CSV or TSV data into JSON, JSONL/NDJSON, or column-oriented arrays.$0.02
image-translateImage translator.$0.02
image-upscaleUpscales an image 2x or 4x via Venice's image/upscale endpoint (default model: venice-sd35).$0.02
image-watermarkImage watermark / add text or logo watermark to image files.$0.02
mp4-to-mp3Converts MP4, MOV, WebM, MKV, AVI, M4V, and FLV video files to MP3 via CloudConvert, with selectable bitrate (96/128/192 kbps).$0.02
mp4-to-mp3-apiConverts MP4, MOV, WEBM, MKV, AVI, M4V, or FLV URLs into hosted MP3 output with selectable 96, 128, or 192 kbps bitrate.$0.02
mp4-to-mp3-converterConverts MP4 video URLs into hosted MP3 files with selectable bitrate; also accepts MOV, WEBM, MKV, AVI, M4V, or FLV URLs.$0.02
SEE ALSO
agentutility · mediakit · x402 · mcp · llms.txt · registry.json · bazaar.x402.org