API archive entry · source-reported
VisibleThread API
## Introduction The VisibleThread b API provides services for analyzing/searching documents and web pages. To use the service you need an API key. **Contact us at support@visiblethread.com to request an API key**. The services are split into **Documents** and **Webscans**. ### Documents Upload documents and dictionaries so you can : - Measure the readability of your document - search a document for all terms from a dictionary - retrieve all paragraphs from a document or only matching paragraphs ### Webscans Analyze web pages so you can: - Measure the readability of your web content - Identify & highlight content issues e.g. long sentences, passive voice The VisibleThread API allows you to programatially submit webpage urls to be scanned, check on the results of a scan, and view a list of previous scans you have performed. ------------- The VisibleThread API is a HTTP-based JSON API, accessible at https://api.visiblethread.com Each request to the service requires your API key to be successful. ## Getting Started With Webscans Steps: 1. Enter your API key above and hit **Explore**. 2. Run a new scan by submitting a **POST to /webscans** (title and some webUrls are required). The scan
Archive history
This history reflects directory observations and owner review, not a provider release log.
- First observed: Sep 20, 2026
- Last directory-field change: Sep 20, 2026
- Current source observation: Sep 20, 2026
Published source events
added
Sep 20, 2026 · Added from an approved API directory.
Where to check product changes
Use the provider documentation and status channels for releases, breaking changes, and outages.
Source reference
This page separates source-reported facts from questions that need live provider verification.