fourzerotwo
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seo by Rankyard

On-page SEO audit

Title, meta, H1, canonical, noindex, hreflang, structured data, OG tags, word count, links, alt text, issues and a score.

On-page SEO audit 3 free / day

Title, meta, H1, canonical, noindex, hreflang, structured data, OG tags, word count, links, alt text, issues and a score.

cost
3 free / day then $0.005 / call
MCP tool
seo__page-audit
method
GET

3 free calls a day, then $0.005 per call by card credit or USDC. Free key · Pay by card

GET https://fourzerotwo.si/v1/seo/page-audit

ParamTypeDescription
url string Page URL
# free: send a free key from https://fourzerotwo.si/free
curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/seo/page-audit?url=https%3A%2F%2Fwww.gov.uk%2Fvehicle-tax-rate-tables"

# no key: returns 402 with the price, for x402 agents
curl -i "https://fourzerotwo.si/v1/seo/page-audit?url=https%3A%2F%2Fwww.gov.uk%2Fvehicle-tax-rate-tables"

by Rankyard

Report this endpoint

Use it from an AI agent (MCP)

Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.

{
  "mcpServers": {
    "fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
  }
}
# the call the agent makes
call_api {"tool": "seo__page-audit", "arguments": {"url":"https://www.gov.uk/vehicle-tax-rate-tables"}}

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Analysis by fourzerotwo.