How to add SEO Score API to Claude

In Claude, open Customize > Connectors, choose + Add > Add custom connector and paste https://seoscoreapi.com/mcp. Sign in to seoscoreapi.com when asked, or add your API key as a request header instead. It works the same in claude.ai and Claude Desktop.

Once it is connected, Claude can run SEO Score API's tools for you: SEO audits with 80+ checks, GEO and AI-visibility checks, ADA / WCAG accessibility audits, AI citation tracking, site crawls and Deep Audits, all on your own plan.

Set it up

Open Connectors. In claude.ai or Claude Desktop, go to Customize > Connectors.
Add a custom connector. Click + Add, then Add custom connector.
Name and URL. Name: SEO Score API. URL: https://seoscoreapi.com/mcp. Click Continue, review the detected authentication settings and click Continue again.
Choose how to sign in. Under Authentication pick Sign in now to sign in to seoscoreapi.com (email link, Google or GitHub) and approve. Or pick No sign in and, under Request headers, add Authorization with the value Bearer ssa_your_key_here. Click Add.
Turn it on in a chat. Click the + button at the lower left of the chat, then Connectors, and switch SEO Score API on.

The config

Server URL

https://seoscoreapi.com/mcp

Request header (only if you skip sign-in)

Authorization: Bearer ssa_your_key_here

Team and Enterprise: an Owner adds the connector first under Organization settings > Connectors (Add, hover Custom, select Web). Members then find it in Customize > Connectors and click Connect to sign in with their own account. A request header would give every member the same key, so prefer sign-in for teams.

On the Free Claude plan you can add one custom connector.

Prefer a local server in Claude Desktop? The npm package still works; see the config at the bottom of this page.

Prompts to try first

Swap in your own URL. The plan column says who can run each one.

Ask	Tool	Plan
Audit https://example.com and list the top 5 fixes, most important first.	`audit`	Free key
How well can AI assistants read https://example.com? Run an AI readability check.	`ai_readability`	Free key
Score the conversion of https://example.com/pricing and tell me what is costing sign-ups.	`conversion`	Free key (full fix list on paid plans)
Is https://example.com visible to ChatGPT and AI search? Run a GEO audit.	`geo_audit`	Basic ($15/mo) and up
Check https://example.com for ADA / WCAG 2.1 AA issues and list the critical ones with fixes.	`accessibility_audit`	Paid plans, from Starter ($5/mo)
Generate an llms.txt file for example.com.	`llms_txt`	Any key
Crawl example.com and show me the broken pages, redirects and orphan pages.	`crawl_site`	Pro ($39/mo), Ultra or a Deep Audit credit
Track whether ChatGPT, Gemini, Perplexity and Claude mention Acme when people ask for an SEO tool. Build starter prompts, create a citation tracker and run it.	`create_citation_tracker`	Starter ($5/mo) and up
Run a Deep Audit on https://example.com and list the high-severity findings.	`deep_audit`	Pro ($39/mo), Ultra or credits

Troubleshooting

Claude says it can't reach the server

Check the URL is exactly https://seoscoreapi.com/mcp. Claude connects from Anthropic's cloud, and our server is public, so no allowlisting is needed.

Claude doesn't use the tools

Make sure the connector is switched on for this chat under + then Connectors, and ask for the task by name: "Run an SEO audit on https://...".

The tools are listed but every call fails with an authentication error

Listing tools needs no key; running one does. Check the key starts with ssa_, that the header reads exactly Authorization: Bearer ssa_... (one space after Bearer) or X-API-Key: ssa_..., and that the key was not rotated in your dashboard since.

A tool says it needs a higher plan

Some tools are on paid plans only (GEO audits from Basic, accessibility audits and citation trackers from Starter, crawls and Deep Audits from Pro). The message names the plan; your free audits keep working.

A tool says you have used this month's audits

The free plan includes 20 audits a month. The message gives the reset date and a one-click upgrade.

FAQ

Does this work in Claude Desktop as well as claude.ai?

Yes. Custom connectors are set up once in Customize > Connectors and are available in claude.ai and Claude Desktop.

Can my whole team use one connector?

Yes. On Team and Enterprise an Owner adds it in Organization settings > Connectors and each member connects with their own SEO Score API account.

Is it free?

Yes, to start. A free SEO Score API key includes 20 audits a month and needs no card. GEO audits, accessibility audits, citation tracking, crawls and Deep Audits need a paid plan; plans start at Starter ($5/mo). Every tool call uses your plan's allowance exactly as the REST API does.

Do I need to install anything?

No. The server is hosted at https://seoscoreapi.com/mcp, so you add a URL, not a program. If your assistant only runs local servers, the same tools are in the open-source npm package: npx -y seoscoreapi-mcp with SEO_SCORE_API_KEY set.

API key or sign-in: which should I use?

Either works. Assistants that let you set a request header can send your key as Authorization: Bearer ssa_... or X-API-Key: ssa_.... Assistants with MCP sign-in open seoscoreapi.com, you sign in with an email link, Google or GitHub (or create a free account), approve, and you are done. Listing the tools works without either; running one needs one of them.

What can't it do?

It does not download PDF reports (a tool result is text; the audit tool returns the same data), it does not change account settings such as auto-reload, and it cannot create, upgrade or rotate keys. Those stay in your dashboard.

Prefer a local server?

The same tools ship as an open-source npm package that runs on your machine over stdio. Any client that runs local MCP servers can use it:

Local stdio server (npm)

{
  "mcpServers": {
    "seoscoreapi": {
      "command": "npx",
      "args": [
        "-y",
        "seoscoreapi-mcp"
      ],
      "env": {
        "SEO_SCORE_API_KEY": "ssa_your_key_here"
      }
    }
  }
}

Source: github.com/SeoScoreAPI/seoscoreapi-mcp.

Other assistants

ChatGPT · Claude Code · Cursor · VS Code / GitHub Copilot · Gemini CLI · Codex · Windsurf / Devin Desktop · Copilot Studio

Questions? Email aaron@seoscoreapi.com. See every AI assistant guide, all integrations and the API docs.