The AI SEO tools worth paying for, checked and compared.

Surfer is a content scoring and optimization platform that now also tracks brand visibility in AI search. It's here because it is one of the best-known content optimizers and adds MCP access, so agents can use it directly.

Clearscope grades your drafts against the content that already ranks and suggests the topics you're missing. It's here because it is simple to use, includes unlimited users and has a long track record with content teams.

MarketMuse is a topic-modeling platform for planning and optimizing content across a whole site. It's here because it shows topical authority and content gaps at site level, not just one page at a time.

Frase researches, writes, optimizes and publishes SEO content, and exposes it all through an MCP integration. It's here because it covers the whole job from brief to published page at a low starting price.

NeuronWriter analyzes the top results for a keyword and scores your content against them, with AI credits for writing. It's here because it is the most affordable serious content optimizer we track.

Dashword creates content optimization reports and makes them available to AI agents through an MCP server and API. It's here because it is one of the few optimizers built to be used by agents, with API access even on free accounts.

Page Optimizer Pro scores on-page optimization with its POP Rank Engine and adds an AI writer and an AI visibility tracker. It's here because it gives very specific on-page recommendations and works inside the editors you already use.

Rankability combines content creation and optimization with Google and AI rank tracking and page audits, built for agencies. It's here because it packages the tools an SEO agency uses into client workspaces.

Jasper is a marketing AI platform with Canvas and agents for writing on-brand content. It's here because it is a leading AI writer for teams that care about brand voice, though it is not SEO-specific.

Writesonic produces AI content and tracks how your brand appears in AI search, with site audits included. It's here because it combines article writing with AI visibility tracking at a mid-range price.

Koala's KoalaWriter writes long-form SEO articles with research built in and publishes them in one click. It's here because it is affordable, publishes to the main CMSs and offers API and MCP access on every paid plan.

Byword generates SEO articles in bulk from keyword lists. It's here because it is built for high-volume article production with simple per-article pricing.

SEOwriting.ai writes SEO articles and includes a rewriter, an AI editor and content scoring. It's here because it is one of the cheapest full-featured AI writers we track, with a free plan.

Scalenut creates and optimizes SEO content and adds keyword clustering and AI visibility tracking. It's here because it bundles writing, clustering and optimization in one affordable plan.

RankIQ is a keyword research and content optimization tool built for bloggers, now bundled with Aided's AI. It's here because it focuses on low-competition keywords bloggers can realistically rank for.

Keyword Insights discovers keywords, clusters them by search intent, and turns clusters into briefs and drafts on one credit system. It's here because its SERP-based clustering is one of the best ways to plan pages from a big keyword list.

LowFruits finds low-competition long-tail keywords by analyzing who already ranks for them. It's here because it spots weak results, like forums and small sites, that newer sites can outrank.

Alli AI automates on-page and technical SEO changes in bulk and pre-renders pages for AI crawlers. It's here because it can apply fixes across thousands of pages without developer time.

Rank Math is a WordPress SEO plugin with schema, keyword optimization and an AI content assistant. It's here because it is the most affordable way to add AI help and schema to a WordPress site, with a solid free version.

Link Whisper is a WordPress plugin that suggests and automates internal links. It's here because internal linking is one of the most neglected SEO jobs, and it makes it fast.

Search Atlas is an AI SEO platform whose OTTO SEO agent applies technical, on-page and content fixes, alongside content generation and CMS publishing. It's here because it automates fixes rather than only reporting them.

Semrush is a full SEO suite that now tracks AI search performance and sentiment, with an AI content toolkit for writing. It's here because it is the most complete suite we track, and many teams already use it.

Ahrefs is an SEO suite whose AI Content Helper researches, grades and optimizes content against topical gaps. It's here because it pairs one of the biggest link and keyword datasets with AI content tools and MCP access.

Maark is an SEO and GEO platform that builds a keyword universe, plans and produces content on an autopilot calendar, and tracks rankings and AI visibility. It's here because it runs the whole loop, from keyword to published article to measurement, with you approving each step.