- Home
- API Marketplace Software
- ApyHub Readability Scores Documents API
ApyHub Readability Scores Documents API
Amsterdam, Netherlands
What it is
ApyHub Readability Scores Documents API scores documents and publicly accessible web pages, returning a readability score, reading level, and text statistics. File requests accept PDF, DOC, or DOCX uploads up to 100 MB per request. English uses the Flesch Reading Ease formula by default, while German uses the Wiener Sachtextformel. Results can include word, sentence, character, and paragraph counts, average lengths, and estimated reading and speaking times. Score details include a grade class, a plain-language class label, and an indicator of whether a standard readability threshold is met. ApyHub lists checking contracts and policies, reviewing manuals and help pages, auditing website readability, and scoring reports and proposals as possible uses. AI agents can access the API through ApyHub MCP for content review. The product page offers five API calls a day free without a card. The Starter plan costs nothing and includes 3,000 atoms per month; Pro costs $16 a month and Pro+ costs $42 a month. ApyHub says request and response bodies are not logged, while API call metadata is retained for 90 days.
For and against
For
- Scores public pages and uploaded documents
- Accepts PDF, DOC, or DOCX files up to 100 MB
- Reports text counts and estimated reading times
- Five free API calls per day without a card
- MCP access for AI-agent reviews
Against
- File endpoint limit is 100 MB per request
- Requests can return a 429 error when rate limits are exceeded
- API call metadata is retained for 90 days
The verdict
ApyHub's API returns readability scores alongside counts and time estimates, with English and German formulas specified. The free daily allowance and plan limits are worth checking against expected request volume.
Who it suits
This API suits developers or content teams who need readability scores for documents or public web pages. Its MCP access may fit AI-agent content review workflows.
Plans and prices
Starter
3,000 atoms/month · 1 API key · 5 req/sec · 1 team member
Read 7 Oct 2026 · apyhub.com
Pro
100,000 atoms/month · 10 API keys · 5 req/sec · 5 team members
Read 7 Oct 2026 · apyhub.com
Pro+
500,000 atoms/month · 10 API keys · 10 req/sec · 5 team members
Read 7 Oct 2026 · apyhub.com
On the record
- Data location
- ApyHub says primary data is stored in AWS Frankfurt, with backups replicated to Dublin.apyhub.com · read 7 Oct 2026
- File inputs
- The file endpoint accepts PDF, DOC, or DOCX uploads up to 100 MB per request.apyhub.com · read 7 Oct 2026
- Free access
- The product page offers five API calls a day for free without a card.apyhub.com · read 7 Oct 2026
- Integration
- The API is available through ApyHub MCP for AI agents to check document or page readability during content review.apyhub.com · read 7 Oct 2026
- Languages
- English uses the Flesch Reading Ease formula by default, while German uses the Wiener Sachtextformel.apyhub.com · read 7 Oct 2026
- Privacy
- ApyHub says it does not log API request or response bodies and retains API call metadata logs for 90 days.apyhub.com · read 7 Oct 2026
- Purpose
- Scores documents and web pages for readability and returns a score, reading level, and text statistics.apyhub.com · read 7 Oct 2026
- Rate limits
- Requests can return a 429 rate_limited error when the plan's per-second rate is exceeded.apyhub.com · read 7 Oct 2026
- Returned metrics
- Results can include word, sentence, character, and paragraph counts, average lengths, and estimated reading and speaking times.apyhub.com · read 7 Oct 2026
- Score details
- The readability result includes a score, grade class, plain-language class label, and a boolean label indicating whether a standard readability threshold is met.apyhub.com · read 7 Oct 2026
- Support
- ApyHub lists a Discord community, email, live chat with agents, and a 24/7 AI assistant as support channels.apyhub.com · read 7 Oct 2026
- Use cases
- ApyHub lists checking contracts and policies, reviewing manuals and help pages, auditing website readability, and scoring reports and proposals as use cases.apyhub.com · read 7 Oct 2026
- Web input
- The URL endpoint scores publicly accessible web pages.apyhub.com · read 7 Oct 2026
