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2 endpoints

Similarweb data API

via AnyAPI

AI agents can use Similarweb data at up to $0.00209 per call with a Purrkey key and no Similarweb or AnyAPI account. Your agent can find related websites in Similarweb's similarity order

Endpoints

AnyAPI

Similarweb Website Traffic

/v1/run/similarweb.overview

Get the Similarweb traffic overview for any website: estimated monthly visits and a three-month history, global, country, and category rank, bounce rate, pages per visit, visit duration, traffic sources including AI chatbots, top countries, and top search keywords - as normalized JSON

Up to $0.00209per call
AnyAPI

Similarweb Similar Sites

/v1/run/similarweb.similar_sites

Find the websites Similarweb ranks as most similar to any website: up to 20 competitor and alternative sites in similarity order, each with its similarity score, category, top-country rank, estimated monthly visits, and description - as normalized JSON

Up to $0.00209per call

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Try it with your agents

  1. Find comparable websites

    Set up https://purrkey.app/SKILL.md, then use Purrkey to retrieve the alternatives Similarweb lists for stripe.com, keeping the first five in similarity order. Show the category and similarity score beside each domain.
  2. Check a site's traffic history

    Set up https://purrkey.app/SKILL.md, then use Purrkey to ask me for a website domain and request one Similarweb overview. Tabulate its estimated monthly visits over the available three-month history.
  3. Review traffic acquisition sources

    Set up https://purrkey.app/SKILL.md, then use Purrkey to look up the Similarweb overview for wikipedia.org. Summarize the reported traffic sources and compare the largest three without treating estimates as measured visits.
Questions

Similarweb API questions

Can I see how visits changed over time?

The domain overview includes estimated monthly visits and a three-month history where available.

What does a related-site result include?

Similar-site records can show a similarity score, category, country rank and estimated monthly visits.

Do competitor lookups and traffic summaries use one call?

The overview and similar-sites tools are separate lookups. Published prices are up to $0.00209 per call.