APIDistributed vs ApyHub Readability Scores Documents API

APIDistributed is a public, cloud-deployed marketplace for production APIs. It lets one API key reach APIs from multiple providers through a gateway that identifies the provider, checks plans, applies quotas, measures requests, and combines provider charges on one invoice. The homepage lists more than 4,200 APIs spanning AI and machine learning, data, payments, communications, maps, media, and finance. A single Bearer token works across marketplace endpoints. Typed clients are listed for Node, Python, Go, and Rust, with a cURL example. Per-call telemetry reports latency, cost, and status. Pay-as-you-go pricing starts at $0.0002 per call, and the first 100,000 calls each month are free forever; volume discounts apply. Spend caps and per-key budgets are available, with no minimums, seats, or idle fees. API publishing, subscriber billing, and marketplace analytics are supported. The service is in private beta and invites early-access requests.

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. English checks use 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. The score includes a grade class, a plain-language label, and an indication of whether a standard readability threshold is met. ApyHub lists uses such as reviewing contracts, policies, manuals, help pages, websites, reports, and proposals; AI agents can also access the API through ApyHub MCP for content reviews. The product page offers five API calls a day free without a card. Starter is free and includes 3,000 atoms per month; Pro costs $16 a month and Pro+ $42 a month. Requests can return a 429 rate_limited error when the plan's per-second limit is exceeded.