A topical map generator, content brief generator and entity SEO platform in one. SemanticOS automates topical map creation from your domain, writes a semantic-SEO brief for every page on the map, and gives you 87 semantic SEO tools built on entity-based SEO principles.
You bring your own Claude API key to use the tool.
A topical map creation tool that does the work a spreadsheet never could — no manual clustering, no guesswork.
Type your domain or seed keyword. Tell SemanticOS your entity type, audience, and target market. That’s all the input you need — no technical setup, no onboarding calls.
SemanticOS analyzes entity-attribute relationships, keyword clusters, and SERP intent to generate a complete pillar–cluster–supporting architecture with semantic-SEO briefs for every article.
Export to Google Sheets, Notion, or PDF. Track entity drift, detect cannibalization, monitor E-E-A-T signals, and use 87 tools to close every semantic gap until you dominate your niche.
Founders and operators from the SEO and digital marketing world who’ve supported SemanticOS along the way.
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SemanticOS is a topical map building tool that starts from scratch, not from a keyword list. Enter your domain, define your central entity, and the topical map generator constructs a full pillar–cluster–supporting architecture aligned with how Google models topical authority.
Input your domain and business context. SemanticOS analyzes your niche, entity type, and competitive landscape to generate a semantically complete topical map structured around entity-attribute relationships.
Every map follows a strict three-tier structure: pillar pages establish authority, cluster articles cover intent variations, and supporting content closes semantic gaps — mirroring Google’s entity model.
Visualize coverage on a live heatmap — which attributes are covered, which are thin, which articles compete for the same intent. Fix gaps before they cost you rankings.
SemanticOS generates semantic-SEO content briefs that tell writers exactly what to cover, how to structure it, and which entities to include — not just a keyword list.
| H1 | Espresso brewing: complete guide | entity:espresso |
| H2 | What is espresso? (definition) | attr:definition |
| H2 | Espresso machine attributes | attr:hardware |
| H3 | Pressure (9 bar standard) | val:9bar |
| H3 | Boiler types: single, dual, heat-exchange | val:boiler |
| H2 | Grind size and dose ratio | attr:grind |
| H2 | Related: ristretto, lungo, americano | rel:variants |
Every brief includes a semantically ordered heading hierarchy — central entity, attributes, related entities, question-based sub-topics — structured to match how Google reads a comprehensive article.
SemanticOS checks SERP intent signals before generating a brief. If two articles compete for the same query, it flags the conflict and recommends consolidation or redirection — saving you from cannibalization before it happens.
Turn any brief into a full draft. SemanticOS injects NLP-confirmed semantic terms, entity co-occurrences, and contextual phrases at the right density — natural reading, full signal coverage.
Google’s ranking model is built on entities, not keywords. SemanticOS gives you the tools to define, build, and protect your entity identity across your entire site.
| kind | key | meta | value |
|---|---|---|---|
| entity | Espresso machine | type | product |
| attribute | pressure | unit | bar |
| value | 9 | confidence | 0.97 |
| attribute | boiler_type | unit | enum |
| value | dual | confidence | 0.91 |
Map every entity your site claims to be about — its attributes, values, and relationships. The EAV structure becomes the backbone of your topical map, internal linking, and schema markup.
Close the gap between claimed and perceived identity. Entity Drift compares what your content claims versus what Google’s entity model assigns, then surfaces the exact articles causing misalignment.
Build structured author profiles, credential pages, and organization schema that demonstrate real Experience, Expertise, Authoritativeness, and Trustworthiness — the signals that decide high-stakes queries.
SemanticOS replaces the fragmented stack most SEOs use — a topical map tool, a content brief generator, a keyword clustering tool and an entity SEO auditor in one. Everything is connected: your topical map drives your briefs, your briefs drive your audits, your audits update your map.
Reverse-engineer competitor topical maps. See which entity clusters they dominate and which gaps they left open.
Apply entity SEO principles to your GBP listing. Align profile attributes with what Google expects for your category.
Connect Search Console to track Pillar Page Rank — a composite authority score per cluster based on impressions, clicks, position trends.
Measure how semantically close any two pieces of content are. Confirm internal links make semantic sense before publishing.
Generate topical maps and briefs in 15+ languages, with entity-attribute structures adapted for regional search intent — not just translated.
Design entity-driven programmatic templates at scale. Define entity, attributes, and pattern once — generate thousands of unique pages.
Most SEO tools treat semantic SEO as an afterthought and bolt a cluster view onto a keyword tool. SemanticOS is purpose-built topical map software, built on entity-based semantic SEO principles — giving you depth no general tool can match.
| Feature | SemanticOS BEST VALUE | Surfer SEO | MarketMuse | TopicalMap AI |
|---|---|---|---|---|
| Pricing model | ||||
| Starting price | $59/mo | $99/mo | $199/mo | $56/mo |
| Lifetime option | $999 one-time | — | — | — |
| AI usage | Your own Claude key, at cost | Bundled credits | Bundled queries | Bundled credits |
| Generation caps | None | Per-plan limits | Per-plan limits | Per-plan limits |
| Topical map architecture | ||||
| Topical map builder | full pillar–cluster–support | basic outline only | topic model | cluster-only |
| Entity SEO framework | ✓ native EAV architecture | — | — | — |
| Central entity + Source Context modeling | ✓ | — | — | — |
| Semantic field → pillar spine → URL paths | ✓ | — | — | — |
| Silo architecture planner | ✓ | — | — | — |
| Internal link plan generated from the map | ✓ | partial | — | — |
| Briefs & content production | ||||
| Content brief generator | entity-aware, semantic-SEO native | NLP-based | topic-based | basic |
| Intent conflict check before writing | ✓ | — | — | — |
| Brief → draft with NLP injection | ✓ | ✓ | ✓ | — |
| Question → heading (Q2H) outlines | ✓ | — | — | — |
| Analysis & authority | ||||
| E-E-A-T credential builder | ✓ | — | — | — |
| Entity drift analyzer | ✓ | — | — | — |
| Cannibalization detector | ✓ | ✓ | — | — |
| Topical gap heatmap | ✓ | — | topic inventory | — |
| Semantic distance / embedding analysis | ✓ | — | — | — |
| GSC sync + competitor radar | Pro+ | ✓ | ✓ | — |
| Query fan-out, SPO triples, KG alignment | ✓ | — | — | — |
| Scale & delivery | ||||
| Google Business Profile optimizer | ✓ | — | — | — |
| Schema markup library | ✓ | — | — | — |
| Bulk URL audit | ✓ | — | — | — |
| Programmatic SEO planner | ✓ | — | — | — |
| Multilingual mode | 15+ languages | ✓ | — | — |
| White-label PDF export | Agency plan | — | — | Pro+ |
| Total SEO tools included | 87 | ~12 | ~8 | ~5 |
Competitor rows reflect what Surfer SEO, MarketMuse and TopicalMap AI advertise on their own public pricing and feature pages, checked September 2026. A dash means the capability is not offered as part of a topical map workflow, not that the tool is incapable of anything similar. Plans change — verify before you switch.
avg. organic traffic after 6 mo
to generate a full topical map
until first measurable ranking lift
Replaced our $4k/mo SEO consultant in week one. The semantic-SEO briefs alone are worth the subscription.
Finally a tool that understands SEO is about entity structure, not keyword density. The EAV output is genuinely novel.
We shipped 60 articles last quarter, all briefed by SemanticOS. Traffic is up 240% YoY and entity drift is at zero.
Unprompted 5-star reviews from SEOs using SemanticOS to build topical maps — screenshotted as published.
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Every plan is the same topical map building tool — the same builder, the same content brief generator, the same entity architecture. What changes is how many projects you run and how deep the semantic SEO toolkit goes. All plans include commercial use, and you bring your own Claude API key.
For a solo SEO taking one site all the way from a domain to a published, audited topical map.
Not included: Entity Drift, E-E-A-T tools, GSC sync, competitor analysis and the 32 further analysis modules that start on Pro.
Get Starter →For SEOs and content teams who need the full entity stack and want to measure it.
Not included: white-label exports, unlimited projects, bulk auditing and the 36 advanced semantic modules on Agency.
Get Pro →For agencies running a topical map service across many client sites at once.
Nothing is locked. The lifetime deal below is this exact plan, paid once instead of monthly.
Get Agency →The core topical map creation tool is in every plan. This is the line-by-line difference.
| Trial | Starter | Pro MOST POPULAR | Agency | Lifetime | |
|---|---|---|---|---|---|
| Cost & limits | |||||
| Price | $7 once | $59/mo | $99/mo | $199/mo | $999 once |
| Billing | 7 days, then ends | Monthly | Monthly | Monthly | One-time, forever |
| Projects (sites) | 1 | 1 | 5 | Unlimited | Unlimited |
| Modules included | 19 | 19 | 51 | All 87 | All 87 |
| Generation limits | None — your API key | None — your API key | None — your API key | None — your API key | None — your API key |
| Delete / archive projects | — | — | — | ✓ | ✓ |
| Core workflow — the topical map itself | |||||
| Domain Input + Source Context | ✓ | ✓ | ✓ | ✓ | ✓ |
| EAV entity architecture | ✓ | ✓ | ✓ | ✓ | ✓ |
| Semantic Field + pillar spine | ✓ | ✓ | ✓ | ✓ | ✓ |
| Topical Map Builder | ✓ | ✓ | ✓ | ✓ | ✓ |
| Content Brief Generator | ✓ | ✓ | ✓ | ✓ | ✓ |
| Keyword research + clustering | ✓ | ✓ | ✓ | ✓ | ✓ |
| Internal Links + Audit Mode | ✓ | ✓ | ✓ | ✓ | ✓ |
| Brief → Draft → CMS publish | ✓ | ✓ | ✓ | ✓ | ✓ |
| Analysis & measurement | |||||
| Entity Drift analyzer | — | — | ✓ | ✓ | ✓ |
| E-E-A-T credential builder + score | — | — | ✓ | ✓ | ✓ |
| GSC sync + Pillar Page Rank | — | — | ✓ | ✓ | ✓ |
| Competitor + SERP analysis | — | — | ✓ | ✓ | ✓ |
| Gap heatmap + cannibalization | — | — | ✓ | ✓ | ✓ |
| Semantic distance + embeddings | — | — | ✓ | ✓ | ✓ |
| Import existing URLs | — | — | ✓ | ✓ | ✓ |
| Schema generator + location pages | — | — | ✓ | ✓ | ✓ |
| Scale, agency & advanced semantics | |||||
| Bulk URL audit | — | — | — | ✓ | ✓ |
| Google Business Profile optimizer | — | — | — | ✓ | ✓ |
| Strategic planner suite (Silo Architect & co.) | — | — | — | ✓ | ✓ |
| Advanced semantic modules (query fan-out, SPO, KG) | — | — | — | ✓ | ✓ |
| Content Studio + custom brief templates | — | — | — | ✓ | ✓ |
| Multilingual + programmatic SEO | — | — | — | ✓ | ✓ |
| Output & delivery | |||||
| Sheets, Notion, CSV export | — | — | ✓ | ✓ | ✓ |
| PDF report | — | — | ✓ | ✓ | ✓ |
| White-label PDF (your branding) | — | — | — | ✓ | ✓ |
| Commercial & client use | ✓ | ✓ | ✓ | ✓ | ✓ |
| Future features included | — | While subscribed | While subscribed | While subscribed | Forever |
The $7 trial is a 7-day preview of Starter, not a tier of its own — it opens exactly what Starter opens, so upgrading never takes a feature away. Every plan runs on your own Claude API key, which is why there are no credit packs or generation caps anywhere in this table: AI usage is billed to you by Anthropic at cost.
SemanticOS exists because I got tired of SEO tools that chased keyword density while Google had already moved to entity-based search. I spent years studying entity-based semantic SEO — how Google’s Knowledge Graph models topics, entities, and their attributes — and realised there was no platform that actually operationalised it for practitioners.
So I built one. SemanticOS is the tool I needed when I was manually constructing topical maps in spreadsheets at 2 a.m. Every workflow in the platform comes from real SEO work: the topical map builder, the EAV architecture generator, the entity drift analyser, the E-E-A-T credential system — all of it. No bloat, no buzzwords. Just the frameworks that produce durable rankings.
If you’re serious about topical authority, I built this for you.
Everything you need to know before getting started.
Drop in your domain. Get a full semantic-SEO strategy. Ship better content. It really is that simple.