Data flow

If you don't already have a Sandbox account with the required credentials to start using our APIs, you can request one at [email protected]

You will find all your credentials in the developer's section

Step 1. Authentication

All API requests are made over HTTPS. Requests without authentication will fail.

How to authenticate.

Step 2. Embed and invoke SenseJS

SenseJS is a JavaScript library for the browser that is used as a device fingerprint and to track simple page events like loading, pasting, resizing.

Embed the script in your test environment.

How to embed and invoke SenseJS.

Step 3. Vault credit card info on checkout

Tokenize and store the payment method information for immediate or later use

How to /tokenize.

Step 4. Queue /transmit call on checkout for successful transactions

FlexCharge will build your custom risk model based on your successful transactions. POST /transmit doesn't require an answer, so this 'fire and forget' call doesn't add latency to your transaction.

How to implement /transmit.

Step 5. Call /evaluate on declined transactions

Retrieve the tokenized credit card information and pass it along with the /evaluate request. FlexCharge will then determine if this transaction can be rescued or not.

How to implement /evaluate.

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Your integration is now done

Run some transactions in your test environment to check that the rescue flow is working properly.