Linkagent

Open source · AGPL · Self hosted

Internal linking
on autopilot.

Linkagent crawls your site, finds the internal links you are missing, and adds them with one tiny script. Anchors come from text already on your pages.

Free scan, no account needed. Takes about 20 seconds.

01

Crawl and map

Reads your sitemap, crawls every page, and builds a real picture of your content: topics, clusters, orphan pages, and link depth.

02

Score opportunities

Finds pages that should link to each other and picks anchor text that already exists in your copy. Balanced, varied, never spammy.

03

Ship with one script

A 2 KB script injects links by wrapping existing text. New posts get linked automatically on every re-crawl. No rewrites, no layout shift.

Runs on your own serverYour review decisions survive every re-crawlAnchors are never invented, only foundWorks without an AI key

The open source AI internal linking software

Most internal linking tools are WordPress plugins that match keywords against a dictionary you maintain by hand. Linkagent works differently: it reads your sitemap, crawls every page, and builds a real model of your content: TF-IDF topic vectors, cluster maps, orphan pages, click depth, and the in-text link graph. Navigation and footer links are deliberately ignored, because search engines value contextual links inside your prose far more than boilerplate.

From that model it scores every possible page pair on topical similarity, anchor quality, source depth, and how badly the target needs links. Suggestions stay balanced on purpose: roughly one new link per 250 words, a cap on new inbound links per page, and no single anchor dominating a page's link profile. That is automated internal linking without the spammy footprint automation usually leaves.

You review every suggestion (approve or reject in one click) and your decisions survive every re-crawl. Approved links ship through a 2 KB script, the WordPress internal linking plugin, or a JSON API for server-side rendering. Because it is open source and self-hostable, your content and link graph never have to leave your own infrastructure.

Frequently asked questions

What is Linkagent?
Linkagent is an open source AI internal linking tool. It crawls your site, maps every page into topic clusters, scores which pages should link to each other, and injects the approved links with a 2 KB script, or through the WordPress plugin. Anchor text is never invented; it is always a phrase that already exists in your copy.
How is this different from other internal linking software?
Three ways. It is the only open source, self-hostable tool in the category (AGPL-3.0). It works on any platform (WordPress, Next.js, Shopify, Webflow, any CMS) because links ship via a script or API rather than a CMS plugin. And it only suggests anchors that already exist in your prose, so links read naturally and never break your copy.
Do I need an AI API key?
No. The crawler, topic clustering, opportunity scoring, and anchor selection all run without any AI key. If you add a Claude API key, Linkagent additionally reviews the top opportunities for relevance and anchor quality, and every AI-reviewed anchor is still validated as an exact substring of your original sentence.
Will injected links slow my site down or shift the layout?
No. The embed script is about 2 KB, loads async, and wraps text that is already on the page. Nothing is added or moved, so there is no layout shift. If you prefer zero client-side JavaScript, fetch the link map from the API at build time and render the links server-side.
How much does Linkagent cost?
Hosted plans start at $29/month, with Pro at $99/month for weekly re-crawls across 5 sites and Agency at $249/month for 25; see pricing. Two things stay free: the no-account site scan, and self-hosting the open source platform under AGPL-3.0, forever.
How do internal links help SEO?
Internal links help search engines discover pages, pass authority (link equity) between them, and understand what each page is about through anchor text. Orphan pages and weak internal linking are among the most common (and most fixable) technical SEO problems. Our complete internal linking guide covers the details.