{"name":"Vellium & Co Testing Lab","description":"Independent, free, read-only checks: is a paid x402 data seller answering and how is it priced; which sellers lead a category; can AI agents get into a shopping, travel, ticket or food website. Use before an agent spends money or acts on a site.","version":"1.1.0","supportedInterfaces":[{"url":"https://velliumandco.com/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"capabilities":{"streaming":false,"pushNotifications":false},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["text/plain","application/json"],"provider":{"organization":"Vellium & Co Ltd","url":"https://velliumandco.com"},"documentationUrl":"https://velliumandco.com/for/a2a/","skills":[{"id":"search_checks","name":"Search Vellium's checks","description":"Ask in any language about paid x402 sellers, seller categories or websites rated for AI-agent access; returns citable results.","tags":["search","x402","websites","agents"],"examples":["Which crypto price APIs are reliable?","Can AI agents book on ticketmaster.com?"]},{"id":"check_website","name":"Check a website for AI agents","description":"Send a data part {\"tool\": \"check_website\", \"arguments\": {\"domain\": \"walmart.com\"}}.","tags":["websites","shopping","travel"],"examples":["walmart.com"]},{"id":"check_seller","name":"Check a paid x402 seller","description":"Send a data part {\"tool\": \"check_seller\", \"arguments\": {\"resource\": \"<seller URL>\"}}.","tags":["x402","sellers","payments"],"examples":[]},{"id":"find_route","name":"Find where to get an answer","description":"Send a data part {\"tool\": \"find_route\", \"arguments\": {\"q\": \"UK company directors\"}} — the best tested free official source with its exact call, beside the paid sellers we rate.","tags":["routes","sources","official data"],"examples":["UK company directors","Apple revenue","EU gas storage"]},{"id":"search_sellers","name":"Find sellers in a category","description":"Send a data part {\"tool\": \"search_sellers\", \"arguments\": {\"category\": \"weather\"}}.","tags":["x402","categories"],"examples":["weather","加密货币价格"]}]}