Inkfree App Webhooks

generated: '2026-11-12'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://inkfree.app/docs/webhooks/
sources:
- https://inkfree.app/docs/webhooks/
- https://inkfree.app/docs/webhooks/events/
- https://inkfree.app/docs/webhooks/verifying-signatures/
- https://inkfree.app/docs/webhooks/deliveries/
description: Inkfree posts each matching signing event to the subscriber’s HTTPS URL, signed with HMAC‑SHA256 using a shared secret.
events:
- event: envelope.sent
  description: Envelope was sent to signers.
- event: envelope.completed
  description: All signers signed and the final PDF is available.
- event: envelope.voided
  description: Envelope was voided by the sender.
- event: signer.opened
  description: A signer opened the envelope for the first time.
- event: signer.signed
  description: A single signer completed signing (mid‑flow, not final).
- event: signer.declined
  description: A signer declined to sign the envelope.
- event: signer.delegated
  description: A signer delegated their slot to another person.
delivery:
  signature: HMAC‑SHA256 over the raw body using the shared secret; header X‑Inkfree‑Signature contains "sha256=<hex>".
  retries: Deliveries are retried on failure; the same X‑Inkfree‑Delivery ID may be sent multiple times and should be deduplicated.
  content_type: application/json
note: Target URLs must be HTTPS and publicly routable; loopback, link‑local, and RFC 1918 private addresses are rejected.
docs: https://inkfree.app/docs/webhooks/