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Best relevant APIs

Related Sites API

Search & Discovery

The Related Sites API assists users in discovering websites related to any given URL, making web exploration and competitor analysis straightforward and efficient.

Free 7-Day Trial

100% uptime 383ms avg MCP ready

Backlinq API for SEO Backlink Intelligence

Data & Analytics

Affordable domain authority scores, backlink profiles, referring domains, and multi-domain comparisons. Powered by Moz, Open PageRank, and Common Crawl without the $1,200/year price tag.

Free 7-Day Trial

100% uptime 523ms avg MCP ready

Remote Job Listings Fetch API

Search & Discovery

Access a comprehensive database of remote job listings to boost your career search effortlessly.

Free 7-Day Trial

100% uptime 298ms avg MCP ready

Related Words API

Natural Language Processing (NLP)

Related Words API retrieves related words and their associations, including synonyms, antonyms, and other relationships, along with part of speech and cosine similarity."

Free 7-Day Trial

100% uptime 497ms avg MCP ready

Domain Relevance Insights API

Data & Analytics

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

Free 7-Day Trial

100% uptime 608ms avg MCP ready

Comparable Domain API

Search & Discovery

The Comparable Domain API helps users uncover websites connected to a specific URL, enhancing online exploration and streamlining competitor analysis.

Free 7-Day Trial

100% uptime 881ms avg MCP ready

Affordable Backlink Intelligence Backlinq API for SEO

Data & Analytics

Unlock affordable backlink intelligence to boost your SEO strategy effectively with Backlinq API.

Free 7-Day Trial

100% uptime 307ms avg MCP ready

Simple Backlink Profile Checker Backlinq API for SEO

Data & Analytics

Quickly check backlink profiles to optimize your site’s SEO health using the user-friendly Backlinq API.

Free 7-Day Trial

100% uptime 321ms avg MCP ready

Link Indexable Analysis API

Data & Analytics

Analyze deep links by tracking redirects, HTTP codes, meta robots policies, robots.txt, detect soft 404s, and report comprehensively on SEO status.

Free 7-Day Trial

100% uptime 561ms avg MCP ready

Similar Web Fetcher API

Data & Analytics

Analyzes a domain and returns detailed metrics on authority, external links, spam score, and key SEO factors to evaluate its performance.

Free 7-Day Trial

100% uptime 1,907ms avg MCP ready

Similar Web Tracker API

Data & Analytics

Discover websites similar to any domain with visitor data, category, and global ranking. Ideal for competitor analysis and digital marketing.

Free 7-Day Trial

100% uptime 884ms avg MCP ready

Link Indexable Analyze API

Data & Analytics

Listen for HTTP signals by examining URLs, reveal redirects, codes, indexing status, meta robots, robots.txt, detect soft 404s, and generate detailed SEO reports.

Free 7-Day Trial

100% uptime 861ms avg MCP ready

Keyword Metrics API

Data & Analytics

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

Free 7-Day Trial

100% uptime 1,827ms avg MCP ready

Localization QA API

Natural Language Processing (NLP)

Checks translated JSON, localization strings, placeholders, ICU messages, missing keys, extra keys, empty values, untranslated values, and multi-locale consistency.

Free 7-Day Trial

100% uptime 4,137ms avg MCP ready

Legal Compliance Readability API

Legal & Compliance

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

Free 7-Day Trial

100% uptime MCP ready

Accessibility Compliance Readability API

Legal & Compliance

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

Free 7-Day Trial

100% uptime MCP ready

SEO Optimization Readability API

Natural Language Processing (NLP)

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

Free 7-Day Trial

100% uptime MCP ready

Content Marketing Readability API

Natural Language Processing (NLP)

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

Free 7-Day Trial

100% uptime MCP ready

Fetch Link Index Data API

Data & Analytics

Effortlessly obtain essential data with the Fetch Link Index Data API for enhanced analytics.

Free 7-Day Trial

100% uptime 1,057ms avg MCP ready

Interest Points Locator API

Location & Mapping

Embark on a personalized journey with our Interest Points Locator API. Simply input a city, and unlock a world of discovery as the API unveils enchanting locales and hidden gems. Explore with ease, whether it's historic landmarks, cozy cafes, or vibrant art galleries. Your adventures await, one API away!

Free 7-Day Trial

100% uptime 6,478ms avg MCP ready

Related Domain API

Search & Discovery

The Related Domain API assists users in identifying websites related to a specific URL, improving web exploration and simplifying competitor research.

Free 7-Day Trial