API Reference

The Synapse REST API. All endpoints are versioned under /v1/ and require API key authentication.

Base URL

https://synapse-api.pyrx.tech/v1

Ingest single and batch events with schema validation.

CRUD operations for contacts and contact properties.

Send transactional emails directly without a flow.

Create, update, and render NLT email templates.

Manage reusable template modules and blocks.

Create and manage automated email flows.

Build and evaluate audience segments.

Create, schedule, and send email campaigns.

Query delivery metrics, engagement stats, and funnel data.

Generate and export custom reports.

Manage sender domains and DNS verification.

Workspace settings, members, and billing.

Track async job progress for bulk operations.

Complete list of error codes and their meanings.

Rate limiting policy and per-endpoint limits.