The grant_id: One Handle for Mail, Calendar, and Webhooks

Short summary

Nylas Agent Accounts collapse email, calendar, and webhook management into a single grant_id handle, eliminating OAuth token sprawl and inconsistent identifier formats. A unified /v3/grants/{grant_id}/* API path structure powers all operations from mail send to calendar RSVP responses. The post covers database schema design, lifecycle hooks, quota scoping, and workspace-based policy inheritance for agent platforms.

• •Single grant_id handle unifies email, calendar, webhooks, and contacts for autonomous agents
• •Consistent /v3/grants/{grant_id}/* API eliminates identifier sprawl and complexity
• •Practical patterns: schema, lifecycle management, workspace governance, and quota scoping

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