# Wait, What Time? > Compare recurring weekly calls across time-zone changes. Return a proposal for human review. - [Agent instructions](https://waitwhattime.com/agent.md): input meanings, workflow, privacy and limitations. - [OpenAPI](https://waitwhattime.com/openapi.json): JSON HTTP contract. - [Example input](https://waitwhattime.com/agent-example.json): reproducible synthetic New York/India example, with fixed 2026 dates. - [Connect an agent](https://waitwhattime.com/agents.html): setup and sample connection check. Remote MCP: https://waitwhattime.com/api/mcp (Streamable HTTP, POST, no API key). Tools: compare_weekly_call and search_time_zones. HTTP: POST https://waitwhattime.com/api/compare with decision JSON; GET https://waitwhattime.com/api/zones?q=London. The browser checker runs locally. Explicit MCP/API requests are processed remotely on Vercel. Do not send attendees, titles, calendar descriptions, credentials or account IDs. Tools never send messages or change calendars.