Billie · AsyncAPI Specification

Billie Webhooks

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View Spec View on GitHub CompanyFintechPaymentsBNPLBuy Now Pay LaterB2BInvoicingCheckoutGermanyAsyncAPIWebhooksEvents

AsyncAPI Specification

billie-webhooks.yml Raw ↑
generated: '2026-07-18'
method: searched
source: https://docs.billie.io/reference/webhooks.md
docs: https://docs.billie.io/reference/webhooks
spec_type: Webhooks
notes: >-
  Billie documents a webhook event surface but publishes no AsyncAPI document,
  so this captures the webhook catalog (type Webhooks). Webhooks are not on by
  default — a merchant requests activation via their Billie contact and
  registers a single endpoint URL. Billie POSTs application/json; the merchant
  supplies the auth mechanism it expects Billie to send (Basic, X-Api-Key, or a
  custom header). No cryptographic signature scheme is documented.
delivery:
  transport: http-webhook
  method: POST
  content_type: application/json
  activation: On request via Billie sales/onboarding contact (not default).
  auth_options:
    - 'Authorization: Basic <api_key>'
    - 'X-Api-Key: <api_key>'
    - custom header carrying the API key
  signature: none-documented
payload_fields:
  - {field: created_at, type: datetime}
  - {field: event, type: string}
  - {field: order_id, type: string}
  - {field: order_uuid, type: string}
  - {field: invoice_uuid, type: string, optional: true}
  - {field: amount, type: string, optional: true}
  - {field: open_amount, type: string, optional: true}
events:
  order_lifecycle:
    - order_waiting
    - order_created
    - order_approved
    - order_declined
    - order_shipped
    - order_canceled
    - order_paid_out
  invoice_lifecycle:
    - invoice_created
    - invoice_paid_out
    - invoice_late
  dunning_collections:
    - dunning
    - dunning_paused
    - promise_to_pay
    - instalment_plan
    - dispute
    - dca
    - archived
    - closed
  payments:
    - payment
    - clawback

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