Give Claude Desktop, Claude Code, Cursor, Windsurf, or any MCP-aware AI tool direct access to the SEO Score API: full audits, backlink data, monitoring, and history.
npx -y seoscoreapi-mcpSet your API key once and forget it:
export SEO_SCORE_API_KEY="ssa_your_key_here"(Get a free key at https://seoscoreapi.com — no card required.)
Related MCP server: polaris-audit
Tool | What it does | Plan |
| Full SEO audit on a URL — score, grade, 80+ checks, AI readability, prioritized fixes. | Free |
| Audit up to 10 URLs at once ( | Starter ($5/mo) |
| Current plan + monthly usage + remaining quota | Free |
| Public shareable HTML report for a domain | Free |
| Add a URL to scheduled re-audit + alerts | Starter |
| List monitored URLs | Starter |
| Time-series of past scores for a URL | Starter |
| Every domain audited by this key with 30-day trend | Starter |
| Observed backlinks for a domain (audit-fed graph; honest data caveat in every response) | Basic ($15/mo) |
| Deep Site Audit: 9 dimensions, thousands of catalog checks + up to 150 AI checks; waits for the result ( | Pro ($39/mo), Ultra, or credits |
| Queue a Deep Site Audit and return its | same |
| Status of a Deep Site Audit job, with the | same |
| Deep Site Audits used and remaining this month | same |
| Remove a URL from score monitoring | Starter |
| Structured diff across 2-5 URLs | Basic ($15/mo) |
| Head-to-head against a competitor's page for a keyword | Pro ($39/mo) |
| ADA / WCAG 2.1 AA audit: score, lawsuit risk, violations with fixes ( | Paid plans; own monthly allowance |
| How well AI/LLM systems can consume a page | Any key |
| Third-party trackers and pixels a page loads | Any key (one audit) |
| Conversion score: headline, CTA, trust, forms, objections | Any key (one audit); full fix list on paid plans |
| Page-2 quick wins from Search Console rows or CSV you pass in | Any key (one audit) |
| Generate an llms.txt file for a domain | No key needed; curated version on Basic+ |
| GEO audit: how visible a page is to LLMs | Basic |
| How often LLMs mention a brand | Basic |
| GEO monitoring | Basic |
| Multi-page site crawl (broken pages, redirects, duplicates, orphans, slow pages); waits for the result | Pro, Ultra, or a Deep Audit credit |
| Start a crawl and poll it yourself | same |
| Prompts to track for AI citations | Any key; not metered |
| Track a brand across ChatGPT, Gemini, Perplexity and Claude | Starter ($5/mo) |
| Run a tracker, read a run, read the trend | Starter; metered in checks |
| One-off citation check for a brand and one prompt | Paid plans; metered per check |
| Top-up packs and the account's check balance | Any key |
| Stripe Checkout link for a top-up pack (charges nothing until the user pays it) | Paid plans |
| Read the auto-reload setting | Any key; read-only |
Report files (GET /audit/export): the PDF is binary and an MCP tool result is text.
The audit tool returns the same data as JSON; use the REST API or the Python / Node
SDK (audit_export / auditExport) for the file.
Turning auto-reload on. The API has no such endpoint for API keys: it authorizes
charges, so it is set from the dashboard only. citation_auto_reload reads it.
Account actions (/signup, /verify, /upgrade, /rotate-key) and the public
scoreboard opt-out.
Env var | Default | Purpose |
| (none) | Your API key |
|
| API host |
|
| Deep Audit host ( |
Edit ~/Library/Application Support/Claude/claude_desktop_config.json (Mac) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"seoscoreapi": {
"command": "npx",
"args": ["-y", "seoscoreapi-mcp"],
"env": {
"SEO_SCORE_API_KEY": "ssa_your_key_here"
}
}
}
}Restart Claude Desktop. You'll see the SEO Score tools in the tool picker.
claude mcp add seoscoreapi -e SEO_SCORE_API_KEY=ssa_your_key_here -- npx -y seoscoreapi-mcpOpen Cursor Settings → MCP Servers → Add a new server with the same JSON shape as Claude Desktop above.
Settings → Cascade → MCP Servers → paste the same configuration.
Run npx -y seoscoreapi-mcp as a stdio transport. The server speaks standard MCP and exposes all tools in the table above.
Once installed, talk to your AI assistant naturally:
"Audit https://stripe.com and tell me the top 3 things to fix."
"Run a batch audit on stripe.com, square.com, and adyen.com, then compare their AI readability scores."
"What backlinks have we seen pointing at my-startup.com?"
"Check the score history for our marketing site over the last 30 days."
"Run a deep audit on my-startup.com as a SaaS site and list the high-severity findings."
"Run an accessibility audit on our pricing page and list the critical WCAG failures."
"Crawl my-startup.com and show me the broken links and orphan pages."
"Build starter prompts for 'SEO audit API', create a citation tracker for Acme, and run it."
The tool the AI picks is shown in your client; you can always ask "what tools did you use?" to see the trace.
MCP lets the AI reach data it wouldn't have — your actual site SEO scores, the backlink graph, your monitoring history — without any custom plumbing. Every prompt that says "audit this URL" goes from idea to result in one round-trip. Same source of truth as the REST API; no copying scores between tools.
The backlinks tool returns an audit-fed sample, not a comprehensive backlink index. Every response includes a data_caveat explaining exactly what the dataset is. We are not Ahrefs and don't pretend to be — we expose the unique, growing graph our customers' audits build for free.
The MCP server is open source: https://github.com/SeoScoreAPI/seoscoreapi-mcp
MIT
SEO, broken links, Lighthouse, sitemaps, Open Graph tags and SSL expiry for any list of URLs.
Free SEO, GEO, and AEO audits: analyze any page or domain, AI-crawler access, agent readiness.
Audit public webpages and supplied markup for HTML, CSS, SEO, JSON-LD, and link issues.
Technical SEO, passive security and page-delivery audits with evidence and suggested fixes.
