SEO MCP Server
Free, no signup. A small, read-only Model Context Protocol server for agents working on SEO. Search published guidance, reproduce selected tool checks, and keep the canonical source URL attached to the result.
This is a teaser tier, not a general public API: it has no key, no write actions, and intentionally modest fair-use limits. For a normal browser workflow, use the free tools directly.
MCP registry and crawler-verification data last updated Jul 27, 2026.
Connect
Claude Code
claude mcp add --transport http patrickstox https://patrickstox.com/api/mcp Claude Desktop or claude.ai custom connector
{
"mcpServers": {
"patrickstox": {
"url": "https://patrickstox.com/api/mcp"
}
}
} Cursor
{
"mcp": {
"servers": {
"patrickstox": { "url": "https://patrickstox.com/api/mcp" }
}
}
} Any Streamable HTTP MCP client can use the same endpoint: https://patrickstox.com/api/mcp.
Requests are processed by our server and are not stored after processing. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.
How to use it
- Add the endpoint with the configuration for your MCP client.
- Confirm the client discovers the tools below before relying on a prompt-driven call.
- Use
search_sitefor the complete public corpus orsearch_contentfor articles only, then fetch an article by its returned slug when full text is needed. - For verification tools, supply only the documented public IP, pasted markup, or public URL and preserve the returned evidence and error state.
- Cite the canonical URL returned with published content.
Available tools
| Tool | What it does | Arguments |
|---|---|---|
search_content | Search Patrick Stox's published SEO articles and guides. Supports in:, type:, quoted-phrase, and exclusion syntax; returns title, description, canonical URL, and a markdown URL for each match. | query — Article search terms using optional shared syntax (for example: in:technical-seo "javascript seo") |
search_site | Search Patrick Stox's complete public retrieval corpus, including articles, services, tools, newsletters, talks, and site reference pages. Supports the same in:, type:, quoted-phrase, and exclusion syntax as site search. | query — Search terms, optionally scoped (for example: in:tools canonical) |
get_article | Fetch one article as clean markdown by its slug (from search_content results) — includes title, description, canonical URL, and the full text. | slug — Article slug, e.g. "javascript-seo" |
list_pillars | List the site's content pillars and clusters (taxonomy) with URLs and internal-PageRank share, from the build-time content graph. | None |
verify_bot | Verify whether a public IP claiming to be a known crawler matches published ranges and forward-confirmed reverse DNS. Returns the range snapshot date as evidence. | ip — One public IPv4 or IPv6 addressclaim — Optional crawler id, e.g. "googlebot" |
validate_schema | Validate pasted JSON-LD or HTML containing JSON-LD with the same pure schema.org, Google rich-result, and @id graph checks used by the Schema Markup Validator. | input — JSON-LD or HTML, up to 100,000 charactersmode — "jsonld" (default) or "html" |
trace_redirect_chain | Trace one public URL through bounded HTTP, Refresh-header, and short meta-refresh hops. Returns redirect-relevant evidence only, never a raw header dump. | url — Public http(s) URL to traceua — Optional user-agent profile: default, browser, googlebot, bingbot, gptbot, claudebot, or perplexitybot |
inspect_og | Inspect bounded raw HTML from one public URL for normalized Open Graph and Twitter metadata, resolved image URLs, platform fallback provenance, and share-readiness findings. Never returns the HTML or an arbitrary header dump. | url — Public http(s) URL to inspectua — Optional allowlisted user-agent profile: default, browser, facebookexternalhit (default), or googlebot |
search_content example
Arguments
{
"query": "in:technical-seo \"javascript seo\""
} Trimmed response
[
{
"slug": "javascript-seo",
"title": "JavaScript SEO",
"url": "https://patrickstox.com/technical-seo/javascript-seo/"
}
] search_site example
Arguments
{
"query": "in:tools canonical"
} Trimmed response
[
{
"title": "Canonical Tag Checker",
"kind": "tool",
"url": "https://patrickstox.com/tools/canonical-checker/"
}
] get_article example
Arguments
{
"slug": "javascript-seo"
} Trimmed response
{
"content": [
{
"type": "text",
"text": "# JavaScript SEO\n…"
}
]
} list_pillars example
Arguments
{} Trimmed response
[
{
"kind": "pillar",
"label": "Technical SEO",
"url": "https://patrickstox.com/technical-seo/",
"pagerankShare": "8.42%"
}
] verify_bot example
Arguments
{
"ip": "203.0.113.9",
"claim": "googlebot"
} Trimmed response
{
"verdict": "spoofed",
"bot": {
"id": "googlebot",
"displayName": "Googlebot"
},
"findings": [
{
"findingId": "verify-bot.range-mismatch",
"severity": "fail",
"label": "Crawler IP is outside the published range"
}
],
"evidence": {
"matchedRanges": [],
"listsFetchedAt": "2026-07-05T16:45:33.112Z"
}
} validate_schema example
Arguments
{
"input": "{\"@context\":\"https://schema.org\",\"@type\":\"Product\",\"name\":\"Example\"}"
} Trimmed response
{
"entities": [
{
"type": "Product",
"googleEligible": "does-not-meet"
}
],
"issues": [
{
"code": "google.product.offers-review-rating.missing",
"tier": "blocks"
}
]
} trace_redirect_chain example
Arguments
{
"url": "http://example.com/old"
} Trimmed response
{
"hops": 2,
"finalUrl": "https://example.com/new",
"finalStatus": 200,
"findings": [
{
"findingId": "trace-redirect.extra-hop",
"severity": "warning",
"label": "Redirect trace contains an unnecessary hop"
}
],
"chain": [
{
"status": 301,
"kind": "http"
},
{
"status": 302,
"kind": "http"
},
{
"status": 200,
"kind": "http"
}
]
} inspect_og example
Arguments
{
"url": "https://example.com/article",
"ua": "facebookexternalhit"
} Trimmed response
{
"finalUrl": "https://example.com/article",
"httpStatus": 200,
"userAgent": {
"profile": "facebookexternalhit"
},
"acquisition": {
"maxBytes": 262144,
"capturedBytes": 18420,
"truncated": false,
"complete": true
},
"metadata": {
"openGraph": {
"og:title": "Example article",
"og:image": "https://example.com/card.jpg"
},
"twitter": {}
},
"platforms": [
{
"id": "facebook",
"title": {
"value": "Example article",
"source": "og:title"
},
"image": {
"value": "https://example.com/card.jpg",
"source": "og:image"
}
}
],
"score": 97
} Search syntax
The search tools use the same retrieval syntax as the site. Use in: for a section or taxonomy, type: for a result class, quotation marks for an exact phrase, and a leading minus sign to exclude a term. Multiple in: scopes are combined as alternatives. Available results still depend on each tool’s documented corpus.
in:ai-search citations— search the AI Search pillar.type:guide "title tag" -generator— require the phrase in guides and exclude generators.in:tools canonical— search the Tools section with the full-site search tool.
Example project Static documented response
The search_content example above scopes an exact javascript seo phrase to Technical SEO and returns a result shaped like this:
Title: JavaScript SEO
Slug: javascript-seo
Canonical URL: https://patrickstox.com/technical-seo/javascript-seo/
This is a deliberately trimmed documentation fixture from the shared tool roster, not a live request made when the page renders.
What each step produces
Content tools return source records intended to retain their canonical URLs. verify_bot returns identity evidence and a crawler-range snapshot date. validate_schema returns parsed entities and issue tiers. trace_redirect_chain returns a bounded chain and final state. inspect_og returns normalized Open Graph and Twitter fields, resolved image URLs, selected-UA evidence, and per-platform source provenance. Neither URL tool exposes full HTML or arbitrary response headers. Treat an error, truncated capture, or unavailable check as not evaluated, never as a negative verdict.
How project data is stored
The page and Worker share the same MCP registry and free-tier availability rule, so names, argument schemas, rate tiers, and documentation examples stay aligned with the tools an unauthenticated client can list. Streamable HTTP requests are routed to read-only handlers. Content calls use the build-time published corpus; tool calls reuse bounded validators and safe public-network checks.
Features
- Search the complete public site corpus or only published SEO guidance, with canonical attribution.
- Fetch full article markdown and list the public content taxonomy with build-time PageRank share.
- Verify one crawler IP, validate pasted schema, trace one public redirect chain, or inspect social metadata from one public page.
- Works with Streamable HTTP MCP clients without a key.
Limits & fair use
- Published-content tools: 120 calls per minute per IP.
- Tool calls (bot verification, schema validation, redirect tracing, and social metadata inspection): 10 calls per day per IP across the teaser tool set.
- URL inspection accepts only public URLs and allowlisted user agents, validates every redirect hop, and bounds redirects, bytes, and time.
Limits protect the free service. A paid API tier is not available yet.
Common request error: Provide a public http(s) URL. Correct the request arguments or wait for the stated rate-limit window before retrying. Call the same read-only tool again and confirm it returns a result object instead of an MCP error.
For an unexpected connection or service error, check the current service status before retrying or reporting it.
Limitations
- No write actions, private content, Search Console access, bulk crawling, or general proxy behavior.
- Public tool calls share a small daily per-IP teaser quota.
- Bot verification depends on dated published ranges and available DNS evidence.
- Schema checks are deterministic eligibility guidance, not a guarantee of a rich result.
- URL checks are bounded and accept only public HTTP(S) targets.
- A truncated
inspect_ogcapture may report observed tags, but missing fields, completeness, and score remain explicitly not evaluated.
Attribution
When you use material returned by get_article, cite its canonical Patrick Stox URL. The server flags AI-assisted drafts pending human review; treat that status as part of the source context.
Frequently asked questions
Is this a public API?
No. This is a small, read-only MCP teaser for agents. The site’s ordinary tool endpoints remain same-origin only, and the MCP tool calls have a deliberately small fair-use limit.
What can an agent do?
It can search and fetch published content, inspect the content taxonomy, verify one public crawler IP, validate pasted JSON-LD or HTML, trace one public redirect chain, and inspect Open Graph or Twitter metadata from one public URL. It cannot change site data or access private content.
How should an agent cite this content?
Use the canonical article URL returned by the server whenever you rely on material from a fetched article.
Does the MCP server require an API key?
No. The teaser endpoint is unauthenticated, read-only, and protected by per-IP fair-use limits. It is not intended for high-volume automation.
What happens when a tool cannot verify a result?
The server returns bounded evidence or an explicit error state. A failed fetch, unavailable verification, or rate limit must not be interpreted as a crawler, schema, or redirect verdict.
Site passport Local context for this saved site
Local data
Saved targets, named lists, and recent check summaries remain only in this browser.
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Common issues & how to fix them
- Errors Markup does not meet rich-result eligibility Fix: Fix the validation operation’s named parse or required-property failures, and only use a supported rich-result type that accurately matches the page.
- Warnings Redirect trace contains an unnecessary hop Fix: Redirect the original URL straight to the final destination and remove the intermediate hop.
- Errors Crawler IP is outside the published range Fix: Treat the claim as spoofed, block or rate-limit it by behavior, and verify against the operator’s current published ranges.