# Dropbox Sign Events and Callbacks API

**Canonical:** https://apis.io/apis/dropbox-sign/events-api/  
**Provider:** Dropbox Sign — https://apis.io/providers/dropbox-sign/  
**Documentation:** https://developers.hellosign.com/docs/events/overview/

Dropbox Sign Events and Callbacks API is one of 6 APIs that [Dropbox Sign](https://apis.io/providers/dropbox-sign/) publishes on the [APIs.io](https://apis.io/) network, described by an AsyncAPI event-driven specification. Tagged areas include E-Signature, Webhook, Event, Callbacks, and Event-Driven. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Outbound event / callback surface for Dropbox Sign. The platform POSTs JSON event payloads (wrapped in a `multipart/form-data` `json` field) to a subscriber-configured URL whenever signature requests, templates, and account-level activity change state. Two callback scopes are supported: account callbacks (configured on the authenticated account) and app callbacks (configured per API app and routed by `client_id`). Authenticity is verified via the `event.event_hash` field, computed as HMAC-SHA256 of `event_time + event_type` keyed by the receiving account's API key.

## Machine-readable artifacts (6)

- **Documentation** — https://developers.hellosign.com/docs/events/overview/
- **Walkthrough** — https://developers.hellosign.com/docs/events/walkthrough/
- **AccountCallbacks** — https://developers.hellosign.com/api/reference/operation/accountUpdateEventCallback/
- **AppCallbacks** — https://developers.hellosign.com/api/reference/operation/apiAppCreateEventCallback/
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/dropbox-sign/refs/heads/main/asyncapi/dropbox-sign-events-asyncapi.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/dropbox-sign/refs/heads/main/apis.yml

## Other Dropbox Sign APIs (5)

- [Dropbox Sign Account API](https://apis.io/apis/dropbox-sign/dropbox-sign-account-api/)
- [Dropbox Sign API App API](https://apis.io/apis/dropbox-sign/dropbox-sign-api-app-api/)
- [Dropbox Sign Bulk Send Job API](https://apis.io/apis/dropbox-sign/dropbox-sign-bulk-send-job-api/)
- [Dropbox Sign Embedded API](https://apis.io/apis/dropbox-sign/dropbox-sign-embedded-api/)
- [Dropbox Sign Fax API](https://apis.io/apis/dropbox-sign/dropbox-sign-fax-api/)

## Tags

E-Signature, Webhook, Event, Callbacks, Event-Driven

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/dropbox-sign/events-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/dropbox-sign/.