robots.txt check 3 free / day
Whether a crawler (Googlebot, GPTBot, ClaudeBot…) may fetch a URL, the rule that decided it, and declared sitemaps.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- seo__robots-check
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/seo/robots-check
| Param | Type | Description |
|---|---|---|
| url | string | URL |
| user_agent? | string | Crawler user agent |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/seo/robots-check?url=https%3A%2F%2Fwww.bbc.co.uk%2Fnews" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/seo/robots-check?url=https%3A%2F%2Fwww.bbc.co.uk%2Fnews"
by Rankyard
Report this endpoint
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
| Param | Type | Description |
|---|---|---|
| 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
Extract links 3 free / day
Internal and external links on a page with anchor text and nofollow flags.
- cost
- 3 free / day then $0.003 / call
- MCP tool
- seo__links
- method
- GET
3 free calls a day, then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/seo/links
| Param | Type | Description |
|---|---|---|
| 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/links?url=https%3A%2F%2Ffourzerotwo.si" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/seo/links?url=https%3A%2F%2Ffourzerotwo.si"
by Rankyard
Report this endpoint
Keyword intent 3 free / day
Classify a search keyword as transactional, commercial, navigational or informational.
- cost
- 3 free / day then $0.0005 / call
- MCP tool
- seo__keyword-intent
- method
- GET
3 free calls a day, then $0.0005 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/seo/keyword-intent
| Param | Type | Description |
|---|---|---|
| keyword | string | Keyword |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/seo/keyword-intent?keyword=best%20car%20history%20check%20uk" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/seo/keyword-intent?keyword=best%20car%20history%20check%20uk"
by Rankyard
Report this endpoint
Analysis by fourzerotwo.