API & Integrations
REST docs, SDKs, webhooks, sandbox mode, Shopify, Zapier, and more.
6 articles
Authenticating API requests
One API key per environment. Pass it as a Bearer token on every request.
3 min readUpdated 27 Mar 2026How webhooks are signed and verified
Every webhook carries an HMAC-SHA256 signature. Verify it before trusting the payload.
4 min readUpdated 28 Mar 2026Official SDKs
Node, Python, PHP, Ruby, Go, Java and .NET. All open source, all versioned in lockstep.
2 min readUpdated 29 Mar 2026Sandbox mode
Develop and test against a real API surface without sending real messages or burning credits.
3 min readUpdated 30 Mar 2026Rate limits and throughput
Default 1000 requests per minute, burst to 5000. Enterprise gets higher custom limits.
2 min readUpdated 31 Mar 2026Shopify integration
Abandoned-cart, order confirmation, shipment tracking, and review-request flows in a single app install.
4 min readUpdated 01 Apr 2026
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