APIVerve Website Readability API vs Eclipse Readability Studio

APIVerve Website Readability API analyzes a website and returns its readability score. It accepts webpage input, with API access for submitting requests programmatically, and lists eight readability scores and grade-level analysis. Requests use POST at /v1/websitereadability over HTTPS and require an API key in the x-api-key header; one key works across APIVerve’s 300+ APIs. Each call uses 10 credits from a shared account pool. Responses are available in JSON, XML, YAML, CSV, GraphQL and MCP. A live request tool on the product page can be tried without an API key, and a snippet can embed an interactive form without placing keys in markup. The service also names VerveKit, VerveSheets, automation integrations and Node.js, Python and.NET SDKs. Pricing is freemium: the Free plan provides 200 credits per month, while Starter costs $29.99 a month. The API is listed as online with a 99.9% uptime SLA and typical p50 latency of 1798 ms. APIVerve was founded in 2020 and is headquartered in Lee's Summit, Missouri.

Eclipse Readability Studio analyzes documents, reports their reading levels, explains readability test results and recommends ways to improve text. It includes grammar checking and offers more than 60 readability tests in English, Spanish and German. Users can analyze a single document or process batches. Supported formats include MS Word, OpenDocument, RTF, HTML, PostScript and text files. The software is free and open source, with versions for Linux, macOS and Windows. The Eclipse project lists its status as Incubating and its license as Eclipse Public License 2.0, while noting that some source code and binaries may have different terms. The project proposal says Readability Studio has provided readability formula and grammar analysis since 2006, and names Blake Madden as project lead and copyright holder. Stated use cases include education, military and government, healthcare, publishing and students. No integrations are stated on the product or project pages.