Developers
An API and SDK built to be predictable in production.
- Developer overviewAvailableHow Hopwire fits into your backend: a REST API, a TypeScript SDK, signed webhooks and a sandbox with fixed failure scenarios.
- SDKAvailableA typed server-side SDK for Node with automatic idempotency keys, careful retries, typed errors and a webhook verifier.
- APIAvailableA versioned JSON API at api.hopwire.io for messages, templates, tenants, senders, webhooks and usage, with idempotency and cursor pagination.
- WebhooksAvailableStandard Webhooks signatures, at-least-once delivery, event IDs to deduplicate on, secret rotation and replay.
- Error codesAvailableStable request error codes and delivery outcome codes, each with a cause, a fix, and whether it retries or falls back.
Start with the beta.
Hopwire is free during the invite-only beta. Tell us what you send and we will reply by email.