{"series":"listings","title":"Listings and how many pass","cadence":"daily","version":1,"description":"Public listings by kind, and how many passed their latest check. Hidden and rejected listings are left out.","license":"https://creativecommons.org/licenses/by/4.0/","citation":"ToolVet (2026). x402 and MCP directory history [Data set]. https://toolvet.app/data. Licensed under CC BY 4.0.","source":"https://toolvet.app/data","columns":[{"name":"date","type":"date","description":"UTC day the snapshot was taken (the first snapshot that day)."},{"name":"listings","type":"integer","description":"Public listings: paid x402 APIs plus remote MCP servers."},{"name":"x402_apis","type":"integer","description":"Public paid x402 APIs."},{"name":"mcp_servers","type":"integer","description":"Public remote MCP servers."},{"name":"passing","type":"integer","description":"Listings passing their latest check. \"Passing\" means the most recent unpaid test call got a valid answer: an x402 payment challenge, or a working MCP handshake."}],"rows":[{"date":"2026-10-16","listings":74038,"x402_apis":45805,"mcp_servers":28233,"passing":67346}]}