The developer-first event & invite API that fixes ICS issues
Synara is a developer-first calendar invite and event-sync service that replaces messyics files with fast, reliable API-driven scheduling that's built for modern apps. ICS is 25+ years old and parsed differently across providers. Updates get ignored, duplicated, or partially applied. Synara uses ACE, a clean JSON event format, to normalise event data. A single API call handles invites, updates, sync, and ICS fallback, so your app gets predictable behaviour everywhere.
Synara provides real-time logging, webhooks for every invite/update/RSVP event, full audit trails, and tools to resend invites, rebuild ICS, refresh attendees, and replay behavior. Developers can intervene or debug when needed and understand exactly what happened with each calendar operation.
Synara replaces unreliable .ics files with a modern JSON format (ACE) and a single API that normalizes event data across all calendar providers. It guarantees attendees see the correct event version, handles updates cleanly without duplicates, and prevents timezone drift and date shifting.
Synara abstracts away provider-specific quirks (Google, Outlook, Apple parsing differences) so developers do not need custom logic for each calendar. It provides full audit trails, real-time RSVP sync, and webhooks to track delivery and sync state, eliminating reverse-engineering of calendar behavior.
Synara offers drop-in integration via REST API, JavaScript SDK, and PHP SDK. It sits between your app and attendee calendars, accepting event data and handling all calendar-safe delivery, updates, and cancellations automatically while your product remains the source of truth.
Synara offers tiered plans from free (1,000 invites/month) to Growth ($249/month, 75,000 invites/month) with 99.99% SLA on higher tiers. Reschedules, updates, and RSVP syncs never consume extra invites, and the platform handles high concurrency and priority delivery for large platforms.