Vellium & Co Testing Lab

Tools

Token cost is the o200k count of the tools list JSON, including schemas, before any tool is called.

• search_sellers

  Find paid x402 data services AI agents can buy, inside one category, ranked. Use before paying any seller.

• check_seller

  Our latest independent check of one paid seller, by its address (any spelling) or id: answering, price, buyers, and its paid answers checked against an independent record (with proof).

• sellers_on_domain

  Every paid seller we check on one host.

• list_categories

  Every category of paid service agents buy, with sellers, buyers and how we check it; names in your language with lang.

• check_website

  Can AI agents use this shopping or travel website? Plain-agent access, each AI agent at the door, robots rules, llms.txt, history.

• batch

  Check up to 25 sellers and 25 websites in one call (cheapest for many checks).

• changes

  What changed since a day — keep a local copy in sync.

• find_route

  Where to go for a job, before you spend tokens on trial and error: the best tested free official source with its exact call and how much it returns (and a fallback). Ask in plain words, e.g. 'UK compa

• list_websites

  Rated websites, filtered by market (e.g. 'United States', 'Japan'), plain-agent outcome (open, blocked, timeout) or price honesty (does the price agents read match what people see).