Attio to Insightly integration — real-time, two-way sync

Yes. Stacksync provides a managed, real-time two-way integration between Attio and Insightly: authenticate both systems, choose the objects to sync (such as Attio's Custom objects and People), map fields visually, and changes propagate both ways in milliseconds — no code required.

Change detection on Attio: Webhooks on record and list-entry events, with polling as a fallback. On Insightly: Polling on record updated-date fields. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.

On the Attio side: People, Companies, Users, Deals, plus custom fields where Attio exposes them. On the Insightly side: Custom Fields, Contacts, Organizations, Leads. Stacksync auto-detects both schemas and converts types between the two systems.

Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.

Common patterns for Attio and Insightly: Divisional or regional split; Where both track pipeline: deal visibility across systems; Post-acquisition consolidation. Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.

Attio: REST API. Authentication: Guided in-app connection ("Attio CRM" connection created in a few clicks, "without any coding required"); the docs do not name the underlying auth mechanism (OAuth vs API key). Insightly: REST API (versioned). Authentication: API key sent via HTTP Basic authentication. Stacksync manages authentication, retries, and rate limits on both sides.