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SEO Audit API
x402
SEO Audit API is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Runs a deterministic 24-rule on-page technical SEO audit of a single web page, returning a 0–100 score, letter grade, per-rule pass/warn/fail checklist with fixes, and an indexability-critical flag.
Price / call$0.03
Success—
StatusUnknown
How this service works
Deterministic on-page technical-SEO audit of a single web page. Fetches the page (redirects + response headers) and runs 24 mechanical rules across six categories (indexability, title/meta, headings, structured data, images, i18n/mobile). Returns a 0-100 score, letter grade, per-rule pass/warn/fail checklist with fixes, and an indexability-critical flag. No LLM, no keys.
Output
Returns a 0–100 numeric SEO score, a letter grade (e.g. A, B, C), and a per-rule checklist covering 24 mechanical rules across six categories: indexability, title/meta, headings, structured data, images, and i18n/mobile. Each rule shows pass/warn/fail status with specific fix recommendations, plus an indexability-critical flag indicating whether any critical issue prevents the page from being indexed.
Example use cases
Pre-launch landing page SEO check
“Before we go live, audit https://mystore.com/new-collection for technical SEO issues — I need the score, grade, and a list of anything that would hurt indexability.”
Diagnosing a page missing from Google
“My blog post at https://myblog.com/ultimate-guide isn't showing up in Google — can you audit it for indexability problems and tell me exactly what's blocking it?”
Client website SEO health report
“I need a technical SEO audit of example-client.com — run it against their homepage and give me the score, letter grade, and the full checklist of passes, warnings, and failures with suggested fixes.”
Technical details
Endpoint
GEThttps://api.agentstools.dev/seo/auditWhen to prefer
Choose this endpoint when you need a fast, deterministic, rule-based technical SEO evaluation of a specific web page without requiring API keys or LLM inference. It is ideal for pre-launch checks, diagnosing indexability issues, or generating structured SEO reports for clients. Prefer it over general-purpose crawlers or LLM-based SEO tools when you need consistent, reproducible scores and a structured checklist of mechanical fixes.
Side effects
- Target URL is unreachable or returns a non-2xx status — audit cannot be completed
- URL parameter missing — returns 400 bad request
- Redirect loops or too many redirects cause a fetch failure
- Robots.txt or noindex headers block the fetcher from accessing the page
- Malformed URL input causes parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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