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Microform Integration v2


Microform Integration replaces the sensitive payment input fields of a client application with secure -hosted fields. These fields securely accept payment information, including card and check data, and replace them with non-sensitive tokens.

Microform Integration replaces the primary account number (PAN), the card verification number (CVN), or both, in your payment input form. It has two components:

  • Server-side component: creates a capture context request that contains limited-use public keys from the Flex API v2 suite.
  • Client-side JavaScript library: integrates into your digital payment acceptance web page for the secure acceptance of payment information, including these fields:
    • Card information input fields: payment card (PAN) and CVN
    • eCheck information input fields: routing number and account number

You can style these fields to look and behave like any other field on your website, which might qualify you for PCI Data Security Standard (PCI DSS) assessments based on SAQ A.

Microform Integration provides the most secure method for tokenizing card and check data. Sensitive data is encrypted on the customer’s device before HTTPS transmission to . This method reduces the potential for man-in-the-middle attacks on the HTTPS connection.

Each request that you send to requires header information. For information about constructing the headers for your request, see the REST Developer Guide:

Last published: September 29, 2026