Igrant Io Webhooks

generated: '2026-10-15'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://docs.igrant.io/docs/category/openid4vc-api/webhook/
sources:
- https://docs.igrant.io/docs/category/openid4vc-api/webhook/
- https://docs.igrant.io/docs/openid4vc-webhooks/
- https://docs.igrant.io/docs/openid4vc-api/config-create-webhook/
- https://docs.igrant.io/docs/openid4vc-api/config-read-webhook/
description: iGrant.io provides webhooks for OpenID4VC credential issuance and verification events.
events:
- event: openid.credential.offer_sent
  description: Triggered when a credential offer is created and delivered using QR code or credential offer endpoint.
- event: openid.credential.offer_received
  description: Triggered when a credential offer is accessed by the wallet unit (or holder).
- event: openid.credential.token_issued
  description: Triggered when a token is issued during the credential issuance process.
- event: openid.credential.credential_issued
  description: Triggered when a credential is issued to the wallet unit (or holder) by the issuer.
- event: openid.credential.credential_acked
  description: Triggered when a credential is received and acknowledged in the wallet unit (or holder).
- event: openid.credential.credential_accepted
  description: Triggered when the credential is accepted by the wallet unit (or holder) to store.
- event: openid.credential.credential_deleted
  description: Triggered when the credential is deleted by the wallet unit (or holder).
- event: openid.credential.issuance_denied
  description: 'Triggered when credential issuance is denied for various reasons such as: wallet unit attestation invalid or missing, proof of
    possession invalid, valid credential already exists (if credential uniqueness is enforced), or authorisation failed.'
- event: openid.presentation.request_sent.v3
  description: Triggered when a presentation request is created and delivered using QR code.
- event: openid.presentation.request_received.v3
  description: Triggered when a presentation request is accessed by the wallet unit (or holder).
- event: openid.presentation.presentation_acked.v3
  description: Triggered when a presentation request is received, acknowledged, and verification is performed by the verifier.
delivery:
  signature: 'X-iGrant-Signature header with HMAC‑SHA256 of <timestamp>.<json‑payload> using the webhook secret key (format: t=<timestamp>,sig=<hex>)'
  retries: At‑most‑once guarantee – the service makes a single delivery attempt and does not automatically retry.
docs: https://docs.igrant.io/docs/category/openid4vc-api/webhook/