Encharge

REST API at api.encharge.io/v1. Resources: people, events, tags, segments, emails, broadcasts. POST /people creates or updates a user (upsert by userId or email). POST /events tracks a custom event for a user (triggers automation flows). POST /people/tag applies tags to users. GET /people/{id} retrieves a user profile. GET /tags lists all account tags. GET /segments lists all segments. POST /broadcasts/send triggers a one-off email broadcast to a segment. Response payloads are clean JSON. Bulk people upsert via POST /people/batch.

Standard HTTP status codes with JSON error responses. 401 for invalid token, 400 for missing required fields (userId or email for person upsert), 404 for missing entity. Event tracking is fire-and-forget (200 ACK); automation flow triggering is async. People upsert creates new record if not found. Rate limiting behavior not prominently documented; recommend 10 req/sec as safe default. Encharge platform uptime at status.encharge.io (historical uptime >99.5%). Webhook support for automation event notifications.

Encharge is lifecycle marketing automation for SaaS — the platform is built around the principle that user behavior (events) should drive email sequences, not just time-based drip campaigns. For agents automating user lifecycle: POST user profiles with attributes (plan, trial start, company), track events that trigger flows (trial_started, feature_used, payment_failed), manage tags for segmentation, and query campaign performance. Good fit for SaaS teams building automated onboarding, trial conversion, and churn prevention sequences. API is functional; lighter than Braze or Iterable but purpose-built for SaaS lifecycle. Confidence is docs-derived.

API key auth: X-Encharge-Token: {api_key} header. Keys from Encharge account settings → API Keys. Project-scoped keys. HTTPS enforced. No OAuth2. Rate limit not prominently documented (reasonable rate for lifecycle automation workloads). Write-key vs. read-key distinction available in newer Encharge versions. Token rotation via account settings.

app.encharge.io/api/docs provides API reference for people, events, tags, segments, and broadcast endpoints. Documentation covers the core API surface adequately. Getting started requires an Encharge account (free trial available). JavaScript/Node.js snippet examples provided. No official SDK; REST is simple enough for direct use. Encharge integrations guide covers Segment, HubSpot, and Stripe data sync patterns. Support via Encharge intercom chat.