Overview
What the Silvertext API checks, how a request flows from submission to report, and what you need before the first call.
What the API checks
Send a document and get back one report that covers what a careful editor would look for:
- Plagiarism: word-level matches against web sources, each with the source URL, title and how much of the document it accounts for, and each span marked
exact,near,paraphrase,quotedororiginal. - Grammar and spelling: findings with a replacement, in the dialect the document is written in.
- Citations: checks in APA, MLA or Chicago, including missing citations for matched text.
- AI content: a calibrated likelihood that the text is machine-written, reported as a score and as sentence-level findings.
- Clarity and word choice: the style layer, with an academic or general register.
Every category is a toggle on the request, so a grammar-only or plagiarism-only integration pays for what it runs. The Silvertext app and this API sit on the same endpoints, so a report you create here opens in the app too.
How a check flows
Submit POST /v1/checks with text or a file. The API reads the document, judges size, type,
language and word count, reserves the credits, and answers 202 with the check id. Every
refusal about the document itself answers here, synchronously, so an accepted check will run.
Poll GET /v1/checks/{id} returns the status (queued, extracting, analyzing,
searching, scoring), a progress figure and a phase label while the check runs. Poll
every few seconds; most checks finish in about a minute.
Read When status is done, the same call carries the report. Ask for ?view=summary for
scores only, or ?include=issues,sources for exactly the parts you use. A rejected or
failed check never charges credits.
Before you start
- A Silvertext account and an API key from Account, then API in the app. See Authentication.
- Credits. The first key on an account grants 1,500 starter credits, enough for the quickstart and some real documents. After that, a credit pack or a plan. See Credits and limits.
- A server-side place to call from. Keys must never ship in browser or mobile code.
Same meter as the app
A check costs the same credits from the API as from the app, and the reports it creates show up in the account's report library.
Silvertext API documentation
Check a document for plagiarism, grammar, citations and AI content from one API call. Get a key, submit text or a file, read back one report with fixes.
Authentication
Create an API key in the Silvertext app, send it as a Bearer token on every request, and scope it to what your integration does.