# Retriever AI guides

Documentation for using Retriever AI's agent storefront: what it sells, how to call it, what it costs, and how to recover from errors. The storefront itself: https://agents.rtrvr.ai/zcj/32wvoi0lo6as/llms.txt.

- [Scrape multiple URLs in one request with Retriever AI's API](https://agents.rtrvr.ai/guides/several-urls.md): Send a list of URLs to Retriever AI's Scrape API in one POST. Tabs come back one per URL in request order, and the call is billed as one request.
- [Follow links from a page's accessibility tree with Retriever AI's API](https://agents.rtrvr.ai/guides/read-a-page.md): Retriever AI's Scrape API returns each page's accessibility tree, with a numeric id on every link, and a map from ids to URLs to send as the next call.
- [Read any web page as text and links with Retriever AI's Scrape API](https://agents.rtrvr.ai/guides/quickstart.md): Retriever AI's Scrape API loads a URL in a real browser and returns its text, accessibility tree and link map, paid per call with no account or API key.
- [How much does a Retriever AI Scrape API call cost?](https://agents.rtrvr.ai/guides/pricing.md): Retriever AI's Scrape API charges one flat price per call, however many URLs it carries. Pay per call over x402 or MPP, with no account, key or plan.