Vellium & Co Testing Lab

• 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 independ
• 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 fallb
• 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 ma

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