Retrieve the percentage of similarity between two text strings. Ready to use and easy to implement.

This API will recommend categories that are related to any text string that you pass to it. Ideal for cross-selling.

Reel Metrics API provides comprehensive data on movie and TV show ratings, external links, and metadata for seamless integration into streaming, analytics, or review platforms.

Accepts a structured description of a working relationship and returns a jurisdiction-specific misclassification risk score (0-100), risk level, factor-by-factor analysis, and plain-English reasoning across 20 jurisdictions. Also includes remediation guidance, safe-harbor checklists, financial exposure estimation, cross-jurisdiction comparison, and portfolio-level bulk scoring. No database, no runtime scraping — fast and deterministic responses.

Automate SEO auditing with data on domain/page authority, backlinks, and referring domains for efficient strategy building.

Score the readability of any English text. Returns Flesch-Kincaid, Gunning Fog, SMOG, ARI scores, sentence-level breakdown, improvement suggestions, and target grade pass/fail in one call.

Effortlessly access and retrieve toxicity content with our streamlined API, designed for accurate insights.

The Website Authenticity Score API provides users with real-time data on a website domain's credibility and influence.

The Keyword Metrics API delivers real-time insights on keyword performance, competition, and relevance, empowering users with data-driven strategies for SEO success.

Make your content accessible to all users with the Accessibility Compliance Accessibility Compliance Readability API.

Enhance your content's clarity with the Content Marketing Content Marketing Readability API for better engagement.

Ensure your legal documents are crystal clear with the Legal Compliance Legal Compliance Readability API.

Boost student understanding with the EdTech Readability Improvement API designed for educational content.

Increase user engagement by enhancing readability with the User Engagement User Engagement Readability API.

Optimize your SEO strategy by improving readability with the SEO Optimization SEO Optimization Readability API.

Streamline complex information using the Technical Writing Technical Writing Readability API for clear communication.

Analyze and improve academic texts with the Academic Readability Analysis API for robust insights.

Evaluate Spam Score and domain credibility to mitigate SEO risks and improve website reliability with advanced SEO metrics.

Score IR35 and off-payroll working risk for UK engagements, alongside 19 other jurisdictions' classification tests, with factor-by-factor reasoning.

Score misclassification risk before placing a worker in any of 20 jurisdictions, with financial exposure estimates and remediation guidance for EOR and payroll teams.

Score misclassification risk (0–100) across 20 jurisdictions from a structured description of a working relationship, with the legal test applied and factor-by-factor reasoning.

Bulk-score up to 100 existing contractor relationships in one call, with per-worker risk levels and aggregate statistics to flag your highest-risk workers first.

AI-powered Christian content moderation API. Analyzes text across 7 theological compliance categories with Biblical verses and Creed references. Returns compliance score, severity level, and theological recommendations.

AI-powered Islamic content moderation API. Analyzes text across 7 Sharia compliance categories with Quranic verses and Hadith evidence. Returns compliance score, severity level, and scholarly recommendations.

AI-powered Jewish content moderation API. Analyzes text across 7 Halachic compliance categories using Torah, Talmud, and Shulchan Aruch. Returns compliance score, severity level, and rabbinical notes.