Semrush

Surfer (formerly SurferSEO) is an SEO and content optimization platform that analyzes search data to guide on-page optimization, content planning, and organic growth. The platform includes keyword research, SERP analysis, a content editor, and AI-assisted content tools for drafting and optimization.

OpenSEO is an open-source SEO tool developed as a self-hostable alternative to Semrush and Ahrefs. It provides workflows for keyword research, rank tracking, competitor insights, backlink analysis, site audits, and AI visibility, using a DataForSEO API key for the underlying SEO data. The project exposes an MCP server and reusable agent skills that let agents such as Claude Code, OpenClaw, and Hermes access SEO data and perform guided SEO tasks. It can be self-hosted with Docker for personal use or Cloudflare for internet-facing use across devices or teams; a hosted version is also available, with pricing described as pay-as-you-go for API usage and a subscription option.

SpyFu is a competitive intelligence platform for search marketing that provides PPC and SEO keyword research, competitor ad history, backlink data, and rank tracking. It is operated from the SpyFu website and used to analyze competitors' paid and organic search strategies.

Keyword Pro is a standalone, local-first keyword research console developed as an independent open-source project. It uses the user's own DataForSEO credentials rather than a hosted account, signup, or subscription system, and stores research sessions in a local database. Its guided report can make up to 19 keyword-research calls covering search volume, CPC, difficulty, intent, trends, SERP competitors, and related terms. The application supports 94 markets and 46 languages, validates country-language combinations, skips unsupported paid calls, and provides an advanced mode with 332 keyword-oriented DataForSEO endpoint definitions. It displays estimated costs before paid runs, saves completed reports for later reopening without another API call, and exports results as PDF, CSV, and JSON. The application runs locally with Node.js, pnpm, OpenSSL, and Podman or Docker, binding to 127.0.0.1 by default for a single local user. DataForSEO credentials stored by the application are encrypted with AES-256-GCM. The project is distributed under the Apache License 2.0.

DataForSEO provides APIs for SEO and SEM analytics, including keyword research and related search-engine data, for software companies and agencies. Its services can be accessed programmatically and through an MCP connector.