Fraud Prevention & Blocking

Niftipay gives you tools to proactively block fraud — without waiting for chargebacks. You can manually block IPs, emails, and card BINs, and the system automatically blocks identifiers associated with unusual order patterns. These APIs work across fiat orders and onramping flows. This page covers:

Overview — how it works
Block an IP address (POST /api/fraud/blocked-ips)
List blocked IPs (GET /api/fraud/blocked-ips)
Unblock an IP (DELETE /api/fraud/blocked-ips/:id)
Block an email (POST /api/fraud/blocked-emails)
List blocked emails (GET /api/fraud/blocked-emails)
Unblock an email (DELETE /api/fraud/blocked-emails/:id)
Block a card BIN (POST /api/fraud/blocked-bins)
List blocked BINs (GET /api/fraud/blocked-bins)
Unblock a BIN (DELETE /api/fraud/blocked-bins/:id)
Unusual amount detection — automatic
Velocity auto-blocking — automatic
Fraud alerts (GET /api/fraud/alerts) — view flagged orders
Updated fraud signals

Overview

Niftipay provides three layers of proactive fraud prevention on top of the existing chargeback-based blocking:

1. Manual blocking (IP, email, BIN)

You can block an IP address, email, or card BIN at any time using the APIs below. Blocked customers see a block page with their case number instead of the payment form.

IP blocking — block a specific IP address you know is fraudulent
Email blocking — block a specific email address
BIN blocking — block an entire card range by its BIN (first 6 digits of the card number, identifying the issuing bank). Useful when you see a pattern of fraud from cards issued by the same bank.

2. Unusual amount detection

Niftipay automatically monitors your order amounts. When an order is significantly higher than your historical average, it is flagged as an amount anomaly. This helps catch fraud attempts using stolen cards for unusually large purchases.

The system computes your average order amount per currency using your completed orders
Orders with a z-score of 3.0 or higher are flagged as warning severity
Orders with a z-score of 5.0 or higher are flagged as critical severity
Anomaly detection activates after you have at least 10 completed orders in a given currency

Flagged orders are not automatically blocked — they appear as fraud signals in the fraud signals API and in fraud alert emails so you can review them.

3. Velocity auto-blocking

If the same IP address or same email submits 2 or more amount-anomaly orders within a 24-hour window, Niftipay automatically blocks that IP or email. This catches attackers who rapidly test stolen cards with high amounts. Auto-blocked identifiers appear in your chargeback cases and can be unblocked from the dashboard or via the API.

Dashboard

In the Niftipay dashboard, you can find these features under Fraud Protection:

Chargeback Cases — view all blocked IPs and emails (automatic, manual, and velocity-based)
Alerts — view orders flagged with suspicious activity, and block/unblock IPs and emails with one click

You can also use the Fraud Alerts API to integrate alerts into your own systems.

Authentication

All endpoints below require API key or session authentication.

curl -X GET "https://www.niftipay.com/api/fraud/blocked-ips" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Accept: application/json"

Block an IP Address

Endpoint

POST /api/fraud/blocked-ips Manually block an IP address. Blocked customers from this IP will see a block page instead of the payment form.

Request body

{
  "ipAddress": "203.0.113.42",
  "reason": "Multiple failed payment attempts"
}

Field	Type	Required	Notes
`ipAddress`	string	Yes	IPv4 or IPv6 address.
`reason`	string	No	Optional reason for blocking.

Example request

curl -X POST "https://www.niftipay.com/api/fraud/blocked-ips" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ipAddress": "203.0.113.42", "reason": "Multiple failed payment attempts"}'

Example response (201)

{
  "ok": true,
  "blockedIp": {
    "id": 15,
    "caseNumber": "CB-00015",
    "ipAddress": "203.0.113.42",
    "reason": "Multiple failed payment attempts"
  }
}

Error: already blocked (409)

{
  "ok": false,
  "error": "IP 203.0.113.42 is already blocked (case CB-00015)"
}

List Blocked IPs

Endpoint

GET /api/fraud/blocked-ips Returns all currently blocked IPs for your account — including both manually blocked and automatically blocked (from chargebacks or velocity detection).

Example request

curl -X GET "https://www.niftipay.com/api/fraud/blocked-ips" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Accept: application/json"

Example response

{
  "ok": true,
  "blockedIps": [
    {
      "id": 15,
      "caseNumber": "CB-00015",
      "kind": "ip_manual",
      "ipAddress": "203.0.113.42",
      "cardNames": [],
      "truncatedPans": [],
      "orderEmails": [],
      "createdAt": "2026-04-15T10:00:00.000Z"
    },
    {
      "id": 3,
      "caseNumber": "CB-00003",
      "kind": "ip",
      "ipAddress": "198.51.100.10",
      "cardNames": ["John Doe"],
      "truncatedPans": ["460332******1234"],
      "orderEmails": ["[email protected]"],
      "createdAt": "2026-04-10T12:00:00.000Z"
    }
  ]
}

Response fields

Field	Type	Description
`id`	number	Case ID (used for unblocking).
`caseNumber`	string	Human-readable case number (e.g. `CB-00015`).
`kind`	string	How the IP was blocked: `"ip_manual"` (you blocked it), `"ip"` (chargeback auto-block), or `"ip_amount_anomaly"` (velocity auto-block).
`ipAddress`	string	The blocked IP address.
`cardNames`	string[]	Cardholder names from related orders (if any).
`truncatedPans`	string[]	Card numbers from related orders (if any).
`orderEmails`	string[]	Emails from related orders (if any).
`createdAt`	string	ISO 8601 timestamp when the block was created.

Unblock an IP

Endpoint

DELETE /api/fraud/blocked-ips/:id Unblocks a previously blocked IP address.

Path parameters

Name	Type	Notes
`id`	number	The case ID from the list response.

Query parameters

Name	Type	Required	Notes
`reason`	string	No	Optional reason for unblocking.

Example request

curl -X DELETE "https://www.niftipay.com/api/fraud/blocked-ips/15?reason=False+positive" \
  -H "x-api-key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "unblocked": {
    "id": 15,
    "caseNumber": "CB-00015",
    "ipAddress": "203.0.113.42"
  }
}

Block an Email

Endpoint

POST /api/fraud/blocked-emails Manually block an email address.

Request body

{
  "email": "[email protected]",
  "reason": "Confirmed fraud"
}

Field	Type	Required	Notes
`email`	string	Yes	Valid email address (automatically lowercased).
`reason`	string	No	Optional reason for blocking.

Example request

curl -X POST "https://www.niftipay.com/api/fraud/blocked-emails" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email": "[email protected]", "reason": "Confirmed fraud"}'

Example response (201)

{
  "ok": true,
  "blockedEmail": {
    "id": 16,
    "caseNumber": "CB-00016",
    "email": "[email protected]",
    "reason": "Confirmed fraud"
  }
}

Error: already blocked (409)

{
  "ok": false,
  "error": "Email [email protected] is already blocked (case CB-00016)"
}

List Blocked Emails

Endpoint

GET /api/fraud/blocked-emails Returns all currently blocked emails for your account.

Example request

curl -X GET "https://www.niftipay.com/api/fraud/blocked-emails" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Accept: application/json"

Example response

{
  "ok": true,
  "blockedEmails": [
    {
      "id": 16,
      "caseNumber": "CB-00016",
      "kind": "email_manual",
      "email": "[email protected]",
      "cardNames": [],
      "truncatedPans": [],
      "orderEmails": ["[email protected]"],
      "createdAt": "2026-04-15T11:00:00.000Z"
    }
  ]
}

Response fields

Field	Type	Description
`id`	number	Case ID (used for unblocking).
`caseNumber`	string	Human-readable case number.
`kind`	string	How the email was blocked: `"email_manual"` (you blocked it), `"email"` (chargeback auto-block), or `"email_amount_anomaly"` (velocity auto-block).
`email`	string	The blocked email address.
`cardNames`	string[]	Cardholder names from related orders (if any).
`truncatedPans`	string[]	Card numbers from related orders (if any).
`orderEmails`	string[]	Emails from related orders (if any).
`createdAt`	string	ISO 8601 timestamp.

Unblock an Email

Endpoint

DELETE /api/fraud/blocked-emails/:id

Example request

curl -X DELETE "https://www.niftipay.com/api/fraud/blocked-emails/16?reason=Customer+verified" \
  -H "x-api-key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "unblocked": {
    "id": 16,
    "caseNumber": "CB-00016",
    "email": "[email protected]"
  }
}

Block a Card BIN

Endpoint

POST /api/fraud/blocked-bins Block an entire card range by its BIN (Bank Identification Number). The BIN is the first 6 digits of a card number and identifies the issuing bank. This is useful when you notice a pattern of fraud from cards issued by the same bank. For example, if you see multiple fraudulent orders from cards starting with 443047, you can block that BIN to prevent all cards in that range from being used on your checkout.

Request body

{
  "bin": "443047",
  "reason": "Fraud pattern detected from this card range"
}

Field	Type	Required	Notes
`bin`	string	Yes	Exactly 6 digits (e.g. `"443047"`).
`reason`	string	No	Optional reason for blocking.

Example request

curl -X POST "https://www.niftipay.com/api/fraud/blocked-bins" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"bin": "443047", "reason": "Fraud pattern detected from this card range"}'

Example response (201)

{
  "ok": true,
  "blockedBin": {
    "id": 5,
    "bin": "443047",
    "reason": "Fraud pattern detected from this card range",
    "createdAt": "2026-04-15T12:00:00.000Z"
  }
}

Error: already blocked (409)

{
  "ok": false,
  "error": "BIN 443047 is already blocked"
}

How to find a card’s BIN

The BIN is extracted automatically from the card number when a payment is processed. You can see it in the fraud signals API response in the order.bin field, or by looking at your order details — the first 6 digits of the truncated card number (e.g. 460332******1234 has BIN 460332).

List Blocked BINs

Endpoint

GET /api/fraud/blocked-bins Returns all blocked BINs for your account, including both merchant-specific and platform-wide blocks.

Example request

curl -X GET "https://www.niftipay.com/api/fraud/blocked-bins" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Accept: application/json"

Example response

{
  "ok": true,
  "bins": [
    {
      "id": 5,
      "bin": "443047",
      "reason": "Fraud pattern detected from this card range",
      "scope": "merchant",
      "createdAt": "2026-04-15T12:00:00.000Z"
    },
    {
      "id": 1,
      "bin": "411111",
      "reason": "Known test card BIN",
      "scope": "platform",
      "createdAt": "2026-04-01T00:00:00.000Z"
    }
  ]
}

Response fields

Field	Type	Description
`id`	number	Blocked BIN ID (used for unblocking).
`bin`	string	The 6-digit BIN.
`reason`	string \| null	Reason for blocking.
`scope`	string	`"merchant"` (you blocked it) or `"platform"` (blocked by Niftipay for all merchants).
`createdAt`	string	ISO 8601 timestamp.

Note: Platform-wide BIN blocks are managed by Niftipay and cannot be removed by merchants. Only merchant-specific BINs can be unblocked.

Unblock a BIN

Endpoint

DELETE /api/fraud/blocked-bins/:id Removes a BIN from your blocklist. Only merchant-specific BINs can be removed — platform-wide blocks return a 403 error.

Example request

curl -X DELETE "https://www.niftipay.com/api/fraud/blocked-bins/5" \
  -H "x-api-key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "deleted": {
    "id": 5,
    "bin": "443047"
  }
}

Error: platform block (403)

{
  "ok": false,
  "error": "Cannot delete a platform-wide BIN block"
}

Unusual Amount Detection

Niftipay automatically monitors your order amounts to detect anomalies. This is a passive detection — it does not block orders, but flags them in the fraud signals API and in fraud alert emails.

How it works

When an order is completed, Niftipay computes the z-score of the order amount compared to your historical completed orders in the same currency.
The z-score measures how many standard deviations the amount is from your average.
Anomaly detection only activates after you have at least 10 completed orders in the given currency, to avoid false positives on new accounts.

Thresholds

Z-score	Severity	Meaning
< 3.0	—	Normal range. No flag.
3.0 - 4.9	`warning`	Unusually high amount. Included in fraud signals and alert emails.
>= 5.0	`critical`	Extremely high amount. Elevated severity in fraud signals.

Example

If your average order is 85.00 EUR with a standard deviation of 40.00 EUR, an order of 325.00 EUR would have a z-score of (325 - 85) / 40 = 6.0, triggering a critical amount anomaly signal. An order of 210.00 EUR would have a z-score of (210 - 85) / 40 = 3.1, triggering a warning signal.

What to do

When you see an amount anomaly signal:

Review the order — is the amount consistent with what you sell?
Check the customer’s email and IP for other fraud signals
If the order looks legitimate, no action is needed

Velocity Auto-Blocking

When the same IP address or email address is involved in 2 or more amount-anomaly orders within a 24-hour window, Niftipay automatically blocks that identifier.

How it works

An order completes and is flagged with an amount anomaly (z-score >= 3.0)
Niftipay checks if the same IP or email had other amount-anomaly orders in the last 24 hours
If 2 or more anomaly orders are found, the IP or email is automatically blocked
A chargeback case is created with kind ip_amount_anomaly or email_amount_anomaly
Future orders from the blocked IP or email are rejected with a block page

You can unblock these via the blocked IPs/emails endpoints above, or via the chargeback cases API.

Fraud Alerts

Endpoint

GET /api/fraud/alerts

Requires API key or session authentication.

Returns a paginated list of orders that have at least one fraud indicator. This is the data source for the Alerts page in the dashboard, but you can also use it in your own integration to monitor suspicious orders. Each alert includes the current block status for the order’s IP and email, so you can decide whether to block them.

What triggers an alert

An order appears in the alerts list if any of the following are true:

Amount anomaly — the order’s z-score is 3.0 or higher
Disposable email — the email uses a known temporary domain
IP blocked — the customer’s IP is currently blocked
Email blocked — the customer’s email is currently blocked

Query parameters

Name	Type	Default	Notes
`page`	number	`1`	Page number (min 1).
`pageSize`	number	`25`	Results per page (min 1, max 200).

Example request

curl -X GET "https://www.niftipay.com/api/fraud/alerts?page=1&pageSize=25" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Accept: application/json"

Example response

{
  "ok": true,
  "alerts": [
    {
      "id": "ord_abc123",
      "orderKey": 10085,
      "merchantReference": "WC-789",
      "amountCents": 2500000,
      "currency": "EUR",
      "orderStatus": "completed",
      "email": "[email protected]",
      "ip": "203.0.113.42",
      "truncatedPan": "460332******1234",
      "bin": "460332",
      "cardholderName": "John Doe",
      "isDisposableEmail": false,
      "amountAnomalyZScore": 6.2,
      "createdAt": "2026-04-15T10:30:00.000Z",
      "completedAt": "2026-04-15T10:32:00.000Z",
      "severity": "critical",
      "reasons": ["critical_amount"],
      "ipBlock": null,
      "emailBlock": null
    },
    {
      "id": "ord_def456",
      "orderKey": 10086,
      "merchantReference": "WC-790",
      "amountCents": 5000,
      "currency": "EUR",
      "orderStatus": "completed",
      "email": "[email protected]",
      "ip": "198.51.100.10",
      "truncatedPan": "411111******1111",
      "bin": "411111",
      "cardholderName": "Jane Smith",
      "isDisposableEmail": true,
      "amountAnomalyZScore": null,
      "createdAt": "2026-04-15T11:00:00.000Z",
      "completedAt": "2026-04-15T11:02:00.000Z",
      "severity": "medium",
      "reasons": ["disposable_email"],
      "ipBlock": {
        "caseId": 15,
        "caseNumber": "CB-00015",
        "status": "blocked"
      },
      "emailBlock": null
    }
  ],
  "pageInfo": {
    "page": 1,
    "pageSize": 25,
    "total": 2,
    "totalPages": 1,
    "hasMore": false
  }
}

Response fields (alert object)

Field	Type	Description
`id`	string	Fiat order ID.
`orderKey`	number	Numeric order key.
`merchantReference`	string \| null	Your merchant reference.
`amountCents`	number	Order amount in minor units.
`currency`	string	Currency code (e.g. `"EUR"`).
`orderStatus`	string	Order status (e.g. `"completed"`).
`email`	string \| null	Customer email.
`ip`	string \| null	Customer IP address.
`truncatedPan`	string \| null	Masked card number.
`bin`	string \| null	Card BIN (first 6 digits).
`cardholderName`	string \| null	Cardholder name.
`isDisposableEmail`	boolean	Whether the email is from a disposable domain.
`amountAnomalyZScore`	number \| null	Z-score of the order amount vs your average. `null` if not computed.
`createdAt`	string	ISO 8601 timestamp.
`completedAt`	string \| null	ISO 8601 timestamp when payment completed.
`severity`	string	`"critical"`, `"high"`, or `"medium"`.
`reasons`	string[]	Why this order was flagged (see below).
`ipBlock`	object \| null	Current IP block status (see below). `null` if not blocked.
`emailBlock`	object \| null	Current email block status (see below). `null` if not blocked.

`reasons` values

Value	Meaning
`critical_amount`	Amount anomaly with z-score >= 5.0.
`high_amount`	Amount anomaly with z-score >= 3.0.
`disposable_email`	Disposable/temporary email detected.
`ip_blocked`	The IP is currently blocked.
`email_blocked`	The email is currently blocked.

`ipBlock` / `emailBlock` object

Present when the IP or email is currently blocked. Use the caseId to unblock via DELETE /api/fraud/blocked-ips/:id or DELETE /api/fraud/blocked-emails/:id.

Field	Type	Description
`caseId`	number	Case ID (use this to unblock).
`caseNumber`	string	Human-readable case number (e.g. `CB-00015`).
`status`	string	Always `"blocked"` in this response.

Alert status

Each alert has a status field that you can update:

Status	Meaning
`new`	Not yet reviewed. Shown in red in the dashboard.
`reviewed`	You’ve looked at it. Shown in blue.
`dismissed`	You’ve decided it’s not a concern. Shown in gray.

Update Alert Status

Endpoint

PATCH /api/fraud/alerts/:id

Requires API key or session authentication.

Update the status of a fraud alert.

Path parameters

Name	Type	Notes
`id`	string	The alert ID (UUID).

Request body

{
  "status": "reviewed",
  "note": "Checked with customer, looks legitimate"
}

Field	Type	Required	Notes
`status`	string	Yes	One of: `"new"`, `"reviewed"`, `"dismissed"`.
`note`	string	No	Optional review note (max 500 characters).

Example request

curl -X PATCH "https://www.niftipay.com/api/fraud/alerts/a1b2c3d4-5678-90ab-cdef-1234567890ab" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"status": "reviewed", "note": "Verified with customer"}'

Example response

{
  "ok": true,
  "alert": {
    "id": "a1b2c3d4-5678-90ab-cdef-1234567890ab",
    "status": "reviewed",
    "reviewedAt": "2026-04-15T14:00:00.000Z",
    "reviewNote": "Verified with customer"
  }
}

Error: not found (404)

{
  "ok": false,
  "error": "Alert not found"
}

Taking action on alerts

From the dashboard Alerts page, you can review, dismiss, block, or unblock directly. Via the API: Block an IP from an alert:

curl -X POST "https://www.niftipay.com/api/fraud/blocked-ips" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ipAddress": "203.0.113.42", "reason": "Flagged in alert — order #10085"}'

Block an email from an alert:

curl -X POST "https://www.niftipay.com/api/fraud/blocked-emails" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email": "[email protected]", "reason": "Flagged in alert — order #10085"}'

Unblock an IP:

curl -X DELETE "https://www.niftipay.com/api/fraud/blocked-ips/15?reason=False+positive" \
  -H "x-api-key: YOUR_API_KEY"

Updated Fraud Signals

The fraud signals API now returns additional signal types for the new detection features.

New signal types

Type	Description	Extra fields
`bin_blocked`	Card BIN is on the blocklist.	`bin`, `reason`
`amount_anomaly`	Order amount is unusually high compared to merchant’s average.	`zScore`, `severity`, `merchantMean`, `amountCents`
`ip_amount_velocity`	IP auto-blocked due to repeated high-amount orders.	`anomalyCount`, `caseNumber`
`email_amount_velocity`	Email auto-blocked due to repeated high-amount orders.	`anomalyCount`, `caseNumber`

New fields in the `order` object

Field	Type	Description
`bin`	string \| null	Card BIN (first 6 digits). Extracted automatically from the card number at payment time.

Updated severity levels

Level	Triggers
`critical`	IP/email blocked, BIN blocked, velocity auto-block, or IP risk score >= 75.
`high`	Card/email/IP matched your chargebacks, critical amount anomaly (z >= 5.0), or IP risk score >= 50.
`medium`	Platform-wide matches, disposable email, or warning amount anomaly (z >= 3.0).
`low`	No fraud signals detected.

Example fraud signal: amount anomaly

{
  "type": "amount_anomaly",
  "label": "Order amount 250.00 EUR is unusually high (avg: 45.00 EUR, z-score: 5.1)",
  "zScore": 5.1,
  "severity": "critical",
  "merchantMean": 4500,
  "amountCents": 25000
}

Example fraud signal: BIN blocked

{
  "type": "bin_blocked",
  "label": "Card BIN 443047 is blocked",
  "bin": "443047",
  "reason": "Fraud pattern detected from this card range"
}

Error Responses

All endpoints return errors in this format:

Invalid request (400)

{
  "ok": false,
  "error": "A valid ipAddress is required"
}

Missing authentication (401)

{
  "ok": false,
  "error": "Unauthorized"
}

Cannot delete platform block (403)

{
  "ok": false,
  "error": "Cannot delete a platform-wide BIN block"
}

Not found (404)

{
  "ok": false,
  "error": "Blocked IP not found"
}

Already blocked (409)

{
  "ok": false,
  "error": "IP 203.0.113.42 is already blocked (case CB-00015)"
}

Chargebacks Webhooks

​Fraud Prevention & Blocking

​Overview

​1. Manual blocking (IP, email, BIN)

​2. Unusual amount detection

​3. Velocity auto-blocking

​Dashboard

​Authentication

​Block an IP Address

​Endpoint

​Request body

​Example request

​Example response (201)

​Error: already blocked (409)

​List Blocked IPs

​Endpoint

​Example request

​Example response

​Response fields

​Unblock an IP

​Endpoint

​Path parameters

​Query parameters

​Example request

​Example response

​Block an Email

​Endpoint

​Request body

​Example request

​Example response (201)

​Error: already blocked (409)

​List Blocked Emails

​Endpoint

​Example request

​Example response

​Response fields

​Unblock an Email

​Endpoint

​Example request

​Example response

​Block a Card BIN

​Endpoint

​Request body

​Example request

​Example response (201)

​Error: already blocked (409)

​How to find a card’s BIN

​List Blocked BINs

​Endpoint

​Example request

​Example response

​Response fields

​Unblock a BIN

​Endpoint

​Example request

​Example response

​Error: platform block (403)

​Unusual Amount Detection

​How it works

​Thresholds

​Example

​What to do

​Velocity Auto-Blocking

​How it works

​Fraud Alerts

​Endpoint

​What triggers an alert

​Query parameters

​Example request

​Example response

​Response fields (alert object)

​reasons values

​ipBlock / emailBlock object

​Alert status

​Update Alert Status

​Endpoint

​Path parameters

​Request body

​Example request

​Example response

​Error: not found (404)

Fraud Prevention & Blocking

Overview

1. Manual blocking (IP, email, BIN)

2. Unusual amount detection

3. Velocity auto-blocking

Dashboard

Authentication

Block an IP Address

Endpoint

Request body

Example request

Example response (201)

Error: already blocked (409)

List Blocked IPs

Endpoint

Example request

Example response

Response fields

Unblock an IP

Endpoint

Path parameters

Query parameters

Example request

Example response

Block an Email

Endpoint

Request body

Example request

Example response (201)

Error: already blocked (409)

List Blocked Emails

Endpoint

Example request

Example response

Response fields

Unblock an Email

Endpoint

Example request

Example response

Block a Card BIN

Endpoint

Request body

Example request

Example response (201)

Error: already blocked (409)

How to find a card’s BIN

List Blocked BINs

Endpoint

Example request

Example response

Response fields

Unblock a BIN

Endpoint

Example request

Example response

Error: platform block (403)

Unusual Amount Detection

How it works

Thresholds

Example

What to do

Velocity Auto-Blocking

How it works

Fraud Alerts

Endpoint

What triggers an alert

Query parameters

Example request

Example response

Response fields (alert object)

`reasons` values

`ipBlock` / `emailBlock` object

Alert status

Update Alert Status

Endpoint

Path parameters

Request body

Example request

Example response

Error: not found (404)