The future of money is programmable

Securely connect to a user’s card, capture purchases in real time and trigger event-based experiences when it matters most.

Get API key

Engage customers in real time

Leverage real-time payment events to create more relevant and powerful user experiences.

Build with confidence

Work on a secure, reliable platform. Fidel API has an uptime SLA of 99.99% and employs best-in-class security standards.

Reduce time to market

Embed Fidel API as a connectivity layer between your app and the major card networks. Get up and running, fast.

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Fidel API in action

Build your vision

Take a look at how Google Pay uses Fidel API to reimagine how merchants and end users experience the platform.

Your trusted partner

Industry leaders in data security

A user-first approach

Put your users first with Fidel API’s consent-based approach. Your users will never be asked for bank login details or sensitive PII.

Card number tokenization

Fidel API’s proprietary token engine ensures complete user privacy and that sensitive information never gets leaked.

Streamlined compliance

Robust Card Enrollment SDKs enable you to focus on the user experience instead of managing PCI compliance requirements.

Code is our core

Designed for developers

Fidel API offers modular components and tools with rapid integrations to reduce your time to market.

  • + Management dashboard
  • + Webhooks
  • + Detailed documentation
  • + Test environment
  • + Versioned API changes
  • + Metadata support
  • + Sample app

Fidel API Transaction Object

Select Transactions
  "accountId": "4ca457bc-9092-4865-8108-123456789abc",
  "amount": 5.44,
  "auth": true,
  "authCode": "01107I",
  "brand": {
    "id": "3a4fcc58-4913-48c2-8f36-123456789abc",
    "logoURL": "",
    "metadata": null,
    "name": "Rite Aid"
  "card": {
    "firstNumbers": "412345",
    "id": "26d81eb9-ba38-4081-89f8-123456789abc",
    "lastNumbers": "1234",
    "scheme": "visa",
    "metadata": {
        "userId": "abc123456"
  "cardPresent": true,
  "cleared": false,
  "created": "2022-02-23T21:17:04.650Z",
  "currency": "USD",
  "datetime": "2022-02-23T16:17:03",
  "id": "16154cba-2258-41d4-beaf-123456789abc",
  "identifiers": {
    "MID": "vop-28085064-123456789",
    "amexApprovalCode": null,
    "mastercardAuthCode": null,
    "mastercardRefNumber": null,
    "mastercardTransactionSequenceNumber": null,
    "visaAuthCode": "01107I"
  "location": {
    "address": "1849 2nd Ave",
    "city": "New York",
    "countryCode": "USA",
    "geolocation": {
      "latitude": 40.7841187,
      "longitude": -73.9474606
    "id": "71f9a2db-0df5-4645-9dfe-123456789abc",
    "metadata": null,
    "postcode": "10128",
    "state": null,
    "timezone": "America/New_York"
  "offer": null,
  "programId": "efd1eef1-f4f4-49ba-8241-123456789abc",
  "updated": "2022-02-23T21:17:05.029Z",
  "wallet": null

Our customers get results

Creative solutions

Mix and match Fidel API products and add-ons to create the right solution for your business. Check out how these customers are leveraging Fidel API to move their bottom line.

Customer stories Review Fidel API’s Terms of Service to learn how you can leverage the platform.


Learn how Avios grew its customer base of card-linked members twelve-fold.


Learn how Perkbox boosted enrollment and reduced friction at checkout.