RainFocus Nexus MCP Profiles
RainFocus Nexus MCP Profiles, announced 7 July 2026, is a first-party remote Model Context Protocol server that exposes live RainFocus event data to AI clients. The endpoint answers at https://api.rainfocus.com/mcp/ and is OAuth-gated: an unauthenticated tools/list POST returns HTTP 401 "Access token not found in mcp request" with a WWW-Authenticate Bearer challenge carrying RFC 9728 resource_metadata, and the authorization server is the RainFocus OIDC provider at https://events.rainfocus.com/oidc. Per the launch announcement the tool surface is bidirectional - reading session capacity, check-in status, attendee, exhibitor and session records, and writing changes such as closing registration or updating speaker details - with per-user authentication, role-based access control, per-event scoping and audit logging. The live tool list and input schemas require an authenticated introspection.