Onsite is a database of upcoming B2B conferences, trade shows and summits, with the people behind each one: who is speaking, who is sponsoring and exhibiting, and who is attending. The data comes from the events' own websites, read and refreshed every month, so it stays current as line-ups are announced and dates move. For sales and marketing teams: paste your website, and Onsite drafts your ideal customer profile and tells you which events your buyers will be at, which of your competitors are sponsoring, and who to meet there. Attendee lists open before each event on the Growth plan and above. For developers and AI agents: the same data through a REST API and an MCP server, with an OpenAPI spec and plain-language docs. Free plan with no card required. getonsite.dev