Claude Watermark Remover Developer API & SDK
A free, open, keyless REST API to scan text for hidden characters, clean or rewrite it, and strip EXIF/XMP/C2PA metadata from images. Try it live below, then grab the API.
Prefer code? Call the same API directly, one HTTPS POST, no key required:
# No SDK and no API key. Just POST.
curl -X POST https://api.claudewatermark.org/v1/text/clean \
-H "Content-Type: application/json" \
-d '{"text":"Your text here"}'No SDK required
There is nothing to install. Every capability is a plain HTTPS POST to https://api.claudewatermark.orgso you can call it from any language or platform that speaks HTTP. No API key, no auth header, nothing stored.
Scan
Detect hidden zero-width and invisible characters in text.
POST /v1/text/scanClean
Strip those characters and normalize to Unicode NFC.
POST /v1/text/cleanRewrite
Paraphrase text to reduce statistical watermark signal.
POST /v1/text/rewriteImage strip
Remove EXIF, XMP, IPTC, and C2PA metadata from JPEG & PNG.
POST /v1/image/stripGetting Started
Send a POST request and read the JSON response. No key, no setup.
curl -X POST https://api.claudewatermark.org/v1/text/clean \
-H "Content-Type: application/json" \
-d '{"text":"Your Claude-generated content here..."}'class="syn-keyword">const res = await fetch("https://api.claudewatermark.org/v1/text/clean", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ text: "Your Claude-generated content here..." })
});
console.log((await res.json()).cleaned);class="syn-keyword">import requests
r = requests.post("https://api.claudewatermark.org/v1/text/clean",
json={"text": "Your Claude-generated content here..."})
print(r.json()["cleaned"])Start Building Today
Sign up for a free API key and start removing Claude watermarks programmatically. No credit card required for the free tier. Upgrade as your usage grows with simple, predictable pricing.