ZeroClaude API

Base URL: https://zeroclaude.app · JSON in, JSON out

Every tool on the site is available as an HTTP endpoint. Send a POST request with a JSON body; responses are JSON. Errors return a non-2xx status and { "error": "message" }.

AI detection

curl -X POST https://zeroclaude.app/api/detect \
  -H "content-type: application/json" \
  -d '{"text":"Paste at least 40 characters here..."}'

Field	Meaning
`aiPercent`	0–100, share of the text judged AI-written
`verdict`	human · mostly_human · mixed · mostly_ai · ai
`sentences[]`	text, start, end (offsets), ai (0–100), flagged (bool)
`words`, `chars`	Counts for the submitted text

Writing tools

Endpoint	Body	Returns
`/api/tools/humanize`	`text`, `mode`: basic \| advanced	`output`
`/api/tools/paraphrase`	`text`, `tone`: standard \| fluent \| formal \| academic \| simple \| creative \| casual \| shorten \| expand	`output`
`/api/tools/summarize`	`text`, `length` (10–80 %), `style`: text \| bullets	`output`
`/api/tools/grammar`	`text`	`corrected`, `issues[]`
`/api/tools/translate`	`text`, `to`, `from` (or "auto")	`output`
`/api/tools/email`	`kind`: compose \| reply, `purpose`, `original`, `tone`, `length`, `language`	`output`
`/api/tools/dictionary`	`word`	`meanings`, `synonyms`, `antonyms`, `sentences`
`/api/tools/chat`	`messages`: [{role, content}]	`output`
`/api/image-detect`	multipart `image`	`aiPercent`, `verdict`, `reasons`
`/api/video-detect`	multipart `frame` ×1–10 (JPEG/PNG/WEBP), `t` ×n	`aiPercent`, `verdict`, `frames[]`, `reasons`
`/api/remove-bg`	multipart `image` (PNG/JPG/WEBP, ≤10 MB)	image/png
`/api/plagiarism`	`{ "text": "..." }`	`plagiarismPercent`, `sources[]`, `sentences[]`

Example: paraphrase

curl -X POST https://zeroclaude.app/api/tools/paraphrase \
  -H "content-type: application/json" \
  -d '{"text":"The meeting has been moved to Friday.","tone":"formal"}'

# => {"output":"The meeting has been rescheduled to Friday."}

Limits

Detection accepts up to 15,000 characters per request. The free API is meant for fair personal use; for production volumes, keys and SLAs, email api@zeroclaude.app.