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Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
Start with category and auth when you know the integration shape. Use free, signup, and CORS flags when you are trying to remove setup friction.
Sort by verification or response time when the final call is about reliability, not just category fit.
3 results after 1 active filters. Remove any one below without losing the rest of the cut.
Custom Behavioral Events API
Send custom behavioral events into HubSpot through the /events/v3/send endpoint.
Event Notification API Specification - TPP Endpoints
UK Open Banking Event Notifications API lets TPPs (third parties) subscribe to bank event streams — async notifications for account changes, consent revocations, customer status changes.
Twilio - Events
Twilio Events streams Twilio platform events (message delivery, call state changes, quota alerts) via a unified webhook bus — replacing scattered per-endpoint webhook configs.