# 3i CRM Developer Platform > High-throughput webhook ingestion gateway for delivering live leads and scheduled consultation appointments into 3i CRM. - [Overview](https://docs.3i.life/index.md): High-throughput webhook ingestion gateway for delivering live leads and scheduled consultation appointments into the 3i CRM. - [Quick Start](https://docs.3i.life/quickstart.md): Start delivering live leads and consultation appointments to 3i CRM in under 5 minutes. - [Authentication & Routing](https://docs.3i.life/authentication.md): How to authenticate requests using your dedicated partner source token. - [Core Lead Schema](https://docs.3i.life/inbound-leads.md): Parameter reference for contact, address, demographic, and financial fields. - [Scheduled Appointments](https://docs.3i.life/scheduled-appointments.md): Comprehensive guide for delivering booked appointments with or without Calendly. - [Health & Underwriting](https://docs.3i.life/underwriting.md): Specification for insurance policy intent, medical knockouts, mortgage protection, and military fields. - [Compliance & Ad Attribution](https://docs.3i.life/attribution-and-compliance.md): ActiveProspect TrustedForm TCPA proof and Meta Conversions API (CAPI) ad signals. - [Testing & Error Handling](https://docs.3i.life/testing-and-sandbox.md): Pre-flight validation using Listen Mode, idempotency retries, and machine-readable error catalog. - [Ingest Live Lead or Scheduled Appointment](https://docs.3i.life/api-reference/inbound-leads/ingest-live-lead-or-scheduled-appointment.md): Delivers a live prospect or booked consultation appointment directly into the assigned 3i agent's CRM pipeline. ## OpenAPI Specs - [openapi](/openapi.yaml)