seo-api

seo-tools-api is a comprehensive collection of SEO tools designed to help webmasters, developers, and SEO professionals optimize websites for better search engine performance. Built using NestJS, this API provides various modules for analyzing and improving different aspects of a website's SEO.

A source-cited operating memory for the entire DataForSEO v3 API. 12 modules, ~200+ endpoints, Brainstein SSS+ 100/100.

A reasonably fast Google Search Console (GSC) API Class, written in PHP. Knows things so you don't have to.

Expired Domains API & MCP Server — query 16 auction platforms + 100k aged ccTLDs with TF/CF/DA/backlinks data, from code or AI assistants.

3,000+ SEO APIs for keywords, rankings, backlinks, SERP data, and search visibility.

Enterprise SEO Metrics API provides detailed search performance insights, including backlink quality, domain authority, competitor analysis, anchor texts, and technical SEO indicators. It helps developers and businesses monitor, analyse, and optimise website performance with reliable, data-driven SEO metrics.

Google Search API - SERP data extraction for SEO and market intelligence

A self-hosted, open-source technical SEO audit platform with a built-in multi-page crawler and diagnostic suite.

Official TypeScript SDK for the LANGR API — email, SMS, auth, payments, SEO, content, i18n. One API key, one SDK.

Ahrefs API v3 as a queryable knowledge base for AI agents — all 146 endpoints + 7 guides, the units cost model, and a drop-in Claude skill. MCP / RAG / eidetic ready. Backlinks, keywords, SERP, rank tracking, Brand Radar.

seo-tools-api is a comprehensive collection of SEO tools designed to help webmasters, developers, and SEO professionals optimize websites for better search engine performance. Built using NestJS, this API provides various modules for analyzing and improving different aspects of a website's SEO.

Website analyzer API: detect tech stack (WordPress/Wix/Shopify), SEO issues, AI-crawler visibility (GPTBot/ClaudeBot), real transfer size and keyword targeting. Free tier, no signup. Polish-first. | Prześwietlarka stron — API

Code examples for SEO Score API — audit any URL with one API call. Python, JS, PHP, Ruby, Go, GitHub Actions.

Official API reference and examples for the SignalSumo Developer API

Claude Agent Skill that answers SE Ranking API & MCP questions and cites the exact official documentation section for every answer.