Fintech

Business rules humans can read. Decisions software can trust.

Eligibility, limits, and risk rules that compliance can review and support can explain — running as deterministic code, not buried in a service.

Rules live in three services and nobody agrees what is actually implemented

Compliance reviews a Confluence page, engineering ships something else

Support cannot say why a customer was declined last Tuesday

Withdrawal Approval

Approve a withdrawal only when the account has the funds, is within its daily limit, and is in good standing.

A **withdrawal** is approved
  if §withdrawal.funds is valid
  and §withdrawal.limit is valid
  and §withdrawal.account is valid.

withdrawal.funds. A **withdrawal** passes funds_check
  if the __amount__ of the **withdrawal** is less than the __available_balance__ of the **account**.

withdrawal.limit. A **withdrawal** passes limit_check
  if the __withdrawn_today__ of the **account** + the __amount__ of the **withdrawal** is less than or equal to the __daily_limit__ of the **account**.

withdrawal.account. A **withdrawal** passes account_check
  if the __status__ of the **account** is equal to "active"
  and the __frozen__ of the **account** is equal to false.

Run it yourself

Change the policy, change the input, evaluate. The same engine your application would call.

Policy

Input

{
  "withdrawal": {
    "amount": 200
  },
  "account": {
    "available_balance": 1450,
    "daily_limit": 500,
    "withdrawn_today": 100,
    "status": "active",
    "frozen": false
  }
}

Try:

More fintech policies

Transaction Fraud Flag

Finance

Flag a transaction when the amount is unusually high and the location does not match the account.

KYC Screening

Compliance

Verify identity, sanctions, and document checks for Know Your Customer compliance.

Loan Pre-Qualification

Finance

Determine if an applicant meets the minimum credit, income, and debt-to-income requirements.

We will implement your first policy with you.

Send us a rule you currently keep in application code and we will show you what it looks like as a versioned, traceable policy.

Talk to us