Onpage MCP server

• Registry namedev.onpage/onpageverified in the MCP registry

The registry name sits under onpage.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools37
• Server calls itselfonpage-dev
• Server version2.11.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 38 ms.

• Its tools do every use case we checked: scan a page for SEO and AI crawler problems; preview search and social snippets before publishing.
• Checked on 1 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
• What an agent can do with it2 of 2 use cases
• Use2 GitHub stars
• Answeredmeasuring1 of the 7 daily checks it takes to print a share
• Median first answer276 ms
• Space in an agent's context≈ 17,427 tokensthe definitions of all its tools (37), which an agent carries on every turn
• Tool definitionsA · 95 of 100
• Typed results37 of 37 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 10 of 37

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• site_memory

  A memory per site that every OnPage.dev tool writes to, across chats and clients. Open it first when working on a site over time. Pick with mode: open = Open or create the memory, bind it to this chat, get the brief and next steps…

• scan_page

  Scan a page for Google and AI search: 0-100 score, issues to fix first with why and how, AI readiness and key facts. Pick with mode: page = A live page by url (default). Needs url. html = Unpublished HTML before deploy, to gate a release…

• site_audit

  Audit a whole site, step by step, and work with the result. Pick with mode: start = Start an audit of up to 25 pages; returns audit_id. Needs url. continue = Scan the next pages; call until complete. Issues by code, sections, average…

• watch

  Monitoring that runs on its own and posts changes to a webhook. Each kind takes action create (default), status or stop where it applies. Pick with mode: page = Watch one page (or a competitor page with competitor_of) for SEO changes…

• dashboard

  A daily SEO data feed for key pages and a live dashboard in the chat. Pick with mode: feed = Start a daily feed of key pages; returns feed_id. Needs url. data = The feed as clean tables over time. Needs feed_id, dataset. build = Blueprint…

• measure

  Prove and measure with numbers from the user's Search Console, GA4, Ahrefs or Semrush, including numbers the user pastes. Use it instead of calculating by hand: it handles spelling variants, control groups and trends. Pick with mode…

• find_opportunities

  Turn Search Console, GA4 or Ahrefs rows (also rows the user pastes) into the fastest wins, instead of judging them by hand; content_decay and traffic_drop take search_type for Discover, News, Image or Video rows. Pick with mode: ctr_gaps…

• backlinks

  Turn backlink data from Ahrefs, Semrush or similar into links won back, won or cleaned up. Pick with mode: broken = Broken and lost backlinks and 404 visits into 301s and outreach. Needs rows[{target_url, source_url, anchor…

• ai_visibility

  Whether AI assistants can read, quote and recommend a site. Pick with mode: check = AI crawler access, llms.txt, 15 citability checks and the page as a model reads it. Needs url. bots = Fetch the page as Googlebot, GPTBot, ClaudeBot…

• answer_readiness

  Whether a page answers the questions people ask AI and Google. Pick with mode: questions = Sub-questions AI Mode fans out to, and which the page answers. Needs url, topic, questions. passages = The passages that answer given questions, or…

• get_fix_pack

  Fixes ready to ship: as code, for a CMS through its MCP, as a pull request or at the edge. Pick with mode: fixes = Title, description, canonical, social tags, JSON-LD; platform html, wordpress, shopify, webflow, wix, storyblok, sanity…

• edge_worker

  Fixes applied at the edge on the user's own Cloudflare, on any CMS. Pick with mode: rules = One Worker that fixes a whole section by rules. Needs audit_id. prerender = Serve rendered HTML to AI crawlers for JavaScript apps. Needs url.

• fix_log

  Record shipped fixes, keep them live and report on them. Pick with mode: log = Record a shipped fix; checked every 6 hours, restore code on regression. Needs fixes[{url, field, new, old, via, ref}]. report = Every fix with status and…

• request_recrawl

  Get changed pages recrawled. Pick with mode: recrawl = Check pages are indexable, sitemap lastmod entries, IndexNow and Search Console steps (default). Needs urls. indexnow = Submit URLs to IndexNow, or set up the key. Needs urls.

• explain_google

  Explain what Google Search Console and Bing Webmaster Tools report, and what to do. Pick with mode: index_status = Index coverage and rich result statuses, with the fix. Needs rows[{url, coverageState, verdict, indexingState…

• check_keyword

  How pages target a keyword. Pick with mode: focus = One page against one keyword: 8 checks. Needs url, keyword. cannibalization = Your pages competing for one keyword, side by side on every signal, with the plan. Needs keyword, target_url.

• accessibility

  Accessibility for people and the European Accessibility Act. Pick with mode: wcag = WCAG 2.1 AA checks. Needs url. screen_reader = The page as a screen reader reads it. Needs url.

• local

  Local search: the site, the Business Profile and the map. Pick with mode: check = LocalBusiness markup, NAP, locations and the Business Profile (default). Needs url. reviews = Reply drafts for Google reviews, unhappy ones first, for the…

• tracking

  Whether analytics and consent are set up right, and whether the numbers add up. Pick with mode: ga4 = GA4 tags, events and duplicates. Needs url. consent = Cookie banner and Consent Mode v2. Needs url. gsc_vs_ga4 = Search Console clicks…

• check_links

  Status of URLs and links. Pick with mode: urls = Status, redirect chain and canonical of a list of URLs. Needs urls. outbound = Dead or moved links from a page to other sites, with archived copies. Needs url.

• web_vitals

  Core Web Vitals from real Chrome users. Pick with mode: now = The latest field data for a page or site. Needs url. trend = Weekly history, before and after a change date. Needs url.

• share

  Send results where the team works. Pick with mode: link = A link to the visual report. Needs url. export = A Google Sheet, CSV, Slack message or one task per issue.

• plan

  Plans for migrations, experiments and the team. Pick with mode: redirects = Redirect map for a migration or URL change. split_test = SEO split test on a page template, with the Worker. Needs urls, field, pattern. sprint = Fixes into a…

• content

  What to write and how, in the site's own voice, from the pages that rank and the user's search data. Pick with mode: brief = A content brief from the pages that rank. Needs keyword, competitors. topics = Search Console queries into…

• technical

  Technical checks across pages and logs. Pick with mode: hreflang = Hreflang across language versions, with the corrected tag set. Needs url. parameters = URL parameters and filters that waste crawl budget. duplicates = Duplicate and…

• llms_txt

  The llms.txt file for AI assistants. Pick with mode: generate = Write one from the sitemap and home page. Needs url. validate = Check an existing one and its links. Needs url.

• schema

  JSON-LD structured data for rich results. Pick with mode: generate = Write JSON-LD for a page: type Article, Product, FAQPage, Organization, BreadcrumbList, VideoObject, Event, Recipe, JobPosting, SoftwareApplication, ProfilePage or…

• robots_txt

  robots.txt for search and AI crawlers. Pick with mode: test = Which crawlers may fetch a URL, and the rule that decides. Needs url. ai_policy = Rules per AI crawler: allow AI search, block training. Needs url, policy.

• sitemap

  The XML sitemap. Pick with mode: check = Check the sitemap and a sample of its URLs. Needs url. generate = Write a sitemap from a page list or audit. Needs audit_id.

• layout

  What visitors and crawlers see on every screen size. Pick with mode: render = First screen on phone, tablet and desktop in a real browser, and what crawlers without JavaScript get (default). Needs url. probe = A measurement script to run…

• internal_links

  Internal links and link equity. Pick with mode: suggest = Links to add, with anchors, applied by Worker or CMS. Needs audit_id. equity = Internal PageRank and click depth from a site audit. Needs audit_id.

• compare

  Compare pages side by side. Pick with mode: pages = Your page against up to 3 competitors. Needs url, competitors. html = Two versions of HTML before and after. Needs before, after. preview = Deploy preview against production before…

• snippet

  How a page looks in Google and when shared, measured in pixels the way Google truncates. Use it instead of estimating title or description length. Pick with mode: search = Title and description as Google shows them; give title (and…

• entity

  How Google understands who is behind a site. Pick with mode: graph = Organization, sameAs, logo and founder in structured data. Needs url. trust = Author, about, contact and policy signals. Needs url.

• text_quality

  Readability and correct language. Pick with mode: readability = Readability that fits the page and the pages that rank. Needs url. spelling = Spelling and grammar errors in about 30 languages. Needs url.

• track_rankings

  Use for ongoing rank tracking without picking keywords by hand. Each run, fetch Search Console rows by query and page (last 7 or 28 days) and, if connected, the rows of Ahrefs Rank Tracker (rank-tracker-overview) or Semrush Position…

• prioritize_fixes

  Use when Search Console, GA4, Ahrefs or Semrush data is available, also to explain a traffic drop (pass clicks_previous): ranks the fixes by the traffic or revenue they can win. Rank SEO fixes by how much traffic they can win, using data…