The Lending platform includes a robust set of API calls to allow you to create, update, and manage your loans. The platform consists of a set of interconnected micro services that communicates internally using messages. The platform is designed with high fidelity, high perforemance and eventual consistency in mind. 


You must have the following IP addresses allowlisted:

Production -66.206.202.62 , 66.206.202.15

Sign up for maintenance updates and see the current status of the Arix system at 

to begin. Where you will find base URLs and Swagger links.

Click each of the links for API reference documentation. These calls create loans and update loan information.

Error codes

Lending

The automated lending platform from Cross River that includes services such as Preapproval, Oversight, Arix Origination and Funding, Selling, and Hooks.

Information that can be used to distinguish or trace an individual’s identity, either alone or when combined with other information that is linked or linkable to a specific individual. Also known as PII.

Personally_Identifiable_Information

These are contracts for monetary assets that can be purchased, traded, created, modified, or settled for. In terms of contracts, there is a contractual obligation between involved parties during a financial instrument transaction.

financial_instrument

Interest Rate Cards are pre-configured interest rate profiles that can be assigned to specific accounts on demand.

rate_card

A financial institution holding a principal license with a Card Network has the right to issue cards itself and sponsor other institutions (fintechs) to issue on its behalf (BIN sponsorship). Affiliate/Associate members cannot offer BIN sponsorship.

Principal_member

A 6 or 8 digit number assigned by the card networks for card issuing and functions as the first 6 or 8 digits on the card itself. The BIN identifies the bank that is responsible for issuing the program and handling daily settlement with the Network.

Card_BIN

A solution that allows partners to offer card solutions without requiring a direct relationship with the card networks. The bank acts as an intermediary while allowing partners to use its bank identification numbers (BIN). 

BIN_sponsorship

Politically Exposed Person is an individual who holds a prominent public position, or has done so in the recent past and is subject to a higher level of scrutiny due to an increased risk of involvement in bribery, corruption, and money laundering.

Office of Foreign Assets Control. Part of the US Department of the Treasury that administers and enforces economic and trade sanctions based on US foreign policy and national security goals.

OFAC

Move funds internally between accounts. The transfer requires both a debit and credit account and can be either a master account or sub-ledger, or any combination of the two.  Can be made via API calls or for non-API Partners on the COS Explorer.

book_transfer

This is where the financial institution verifies the member has the funds needed before they are transferred to the receiver.

Good_Funds_Model

An instant payment service developed and operated by the Federal Reserve for financial institutions in the United States, which allows individuals and businesses to send and receive money.

FedNow

A payment processing network used to send money electronically between banks in the US. Available year round, it transfers funds between 2 banks account instantaneously. Processes on bank holidays and weekend and after business hours.

A merchant category code (MCC) is a four-digit number used for retail financial services to classify a business by the types of goods or services it provides. Codes are specified by the ISO 18245 standard.

Card Acceptor ID. An internal identifier assigned to your business by your Acquirer when creating the merchant account used for financial processing.

CAID

Business Application Identifier, used by merchants in card payments

The automated loan validation and funding software from Cross River

Arix

Mobile Deposit Capture is the process of submitting a check electronically using a smartphone

Input Message Accountability Data. A unique number given to each FedWire payment when using the Federal Reserver Bank Service and can be used to investigate and track wire transfers.

IMAD

Notification of Change.  The purpose of an NOC is to identify and communicate incorrect information within an ACH entry, such as account numbers or transit and routing number. Sent by a RDFI to the ODFI and the Originator via their ACH Operator.

A global financial messaging standard for electronic payments. It enhances interoperability across financial systems, improves payment processing efficiency and supports compliance by providing detailed transaction information.

ISO20022

A SWIFT Code is a standard format of Bank Identifier Code (BIC) used to specify a particular bank or branch. These codes are used when transferring money between banks, particularly for international wire transfers.

SWIFT

Receiving Depository Financial Institution. All ODFIs must also agree to act as an RDFI to receive ACH payments. An RDFI receives entries directly or indirectly from its ACH Operator for debit or credit to the accounts of its customers.

RDFI

Originating Depository Financial Institution. It has the authority to initiate ACH transactions on behalf of its customers. ODFIs ensure compliance with regulatory standards and securely transmit payment instructions to the ACH network

ODFI

 National Automated Clearing House Association. Nacha governs the ACH Network, the payment system that drives Direct Deposits and Direct Payments with the capability to reach all U.S. bank and credit union accounts

Nacha

International ACH Transaction. A Nacha SEC code.

A uniquely configured financial product you offer your customers. For example, a debit card or a savings account, configured according to your needs and specifications, are product types.

product_type

Bank Identification Number. A unique identifier used in payment card transactions.

COS_Explorer

relationshipmanager

Cross River guides provide details about our products

guide

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YourBank

MyBank

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product_name

Application decisioning

APIs 

APIs intro

Event formats

Webhook management

Webhook events

Request and response codes

Accounts, cards and payment events

Card payments

Webhooks

Add customer

Customer by ID

Add beneficial owner

Add ID details

Update address

Update phone

Update email

Update name

APIs

Response and request codes

Customer management

Open account

Restrict account

Cancel restriction

Tax document list

Tax document

Account management APIs

Create subledger

Subledger info

Subledgers

CD activity

CD penalty fee

Early funds withdrawal

Time deposit (CD) APIs

Account details

Exclude bank/account

Identify bank

Bank list

Deposit sweeps APIs

Accounts

Create new card

Activate card by ID

Set initial PIN

Replace card by ID

Card details

Card details by ID

Transaction details by ID

Get profile

Suspend card

Unsuspend card

Admin block

Close card

Simulate card auth

Simulate card clearing

Simulate card reversal

Simulate incremental

Simulate clearing

Simulate reversal

Cards

Monitor limit utilization

Instant payments

Card transactions

Transaction management

Foreign exchange

Dynamic descriptor

iFrames

Sample cards for testing

International payments

IMPORTANT: Wires API update

Wires

Transfers

Book transfers

Checks

Payments

Create and update a loan (new format)

Create a Line-of-Credit (LOC)/ Draws

Add loan documents

Get loan details by ID

ACH parameters

ACH returns

Adjustment action parameters

Check parameters

RPPS parameters

RPPS returns

RPPS transaction reversals

Internal transfer (XPay) parameters

Instant payments parameters

Card parameters

Wire parameters

Pull funding from merchant

Loan funding - payment rails

Cancel a loan

Purchasing a loan

Hook notifications

Enums

Servicing reports

Transaction reports

[Deprecated] Purchase reports

COS reference codes

Status page