generated: '2026-07-24'
method: searched
source: https://docs.vopay.com/docs/signature-verification
docs: https://docs.vopay.com/docs/getting-started
summary:
  types: [apiKey, signature]
  api_key_in: [body]
  oauth2_flows: []
  note: >-
    VoPay does not use OAuth. Every request is authenticated with an API Key plus a
    request Signature computed from the account's shared secret. No securitySchemes are
    declared in the OpenAPI; this profile is captured from the published docs.
credentials:
  - name: AccountID
    description: The VoPay account identifier the request acts on.
  - name: Key
    description: The API Key ID associated with the account (managed via account/keys endpoints).
  - name: SharedSecret
    description: The account's shared secret. Never sent on the wire; used to compute the Signature. Regenerable from the account portal if compromised.
request_signature:
  algorithm: SHA1
  formula: sha1(Key + SharedSecret + Date)
  date_format: 'YYYY-MM-DD'
  note: >-
    The request Signature is a SHA1 hash of the API Key, the account's shared secret, and
    the current date in YYYY-MM-DD format. Because the date is part of the hash, a signature
    is valid only for the calendar day it was generated.
webhook_verification:
  algorithm: HMAC-SHA1
  formula: sha1(SharedSecret + RecordID)
  field: ValidationKey
  record_id_examples: [TransactionID, ELinxRequestID, BankAccountToken, CreditCardToken]
  note: >-
    Each webhook payload carries a ValidationKey = SHA1(SharedSecret + RecordID). The
    receiver recomputes it from their shared secret and the record id in the payload and
    compares; a mismatch means the webhook should be ignored.
  origin_ips: [15.156.104.253, 52.60.226.121]
key_management:
  endpoints:
    - openapi/vopay-account-api-reference.json  # account/keys, account/keys/add, account/keys/retrieve, account/keys/edit, account/keys/delete
  ip_whitelisting: true
schemes:
  - name: apiKeySignature
    type: apiKey
    in: body
    scheme: shared-secret-signature
    sources: [https://docs.vopay.com/docs/signature-verification]