Real-time USD transfers for digital asset traders.

Use INDX to settle faster and safer at scale. Instant transfers are available 24x7x365 and settle in pure USD. All funds are automatically deposited into hundreds of insured banks. Every depositor eligible for up to $25 million of federal deposit insurance with no deposit balance limits.

INDXnet

Designed for forward-leaning digital asset companies. Easily open a custodial account, send and receive instant transfers around the clock with your counterparties. Cut risk and increase capital efficiency with real USD settlement.
Open Account Now
For Digital Asset Companies
APIs
100% USD

Array

Built for scaled companies and those ready to accelerate customer acquisition. Automatically store millions of users cash positions with a single integration. Stay compliant with no need to acquire licenses.
Scale Up with Array
For Customer Cash
Sub-account Processing
APIs

Proof

Stablecoin reserve management architected to help you launch, scale and design a better coin. Purely overnight cash: zero duration or rate risk. 100% compliant with pre-built integrations to help you seamlessly differentiate and scale.
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For Stablecoin Reserves
APIs
Instant Transfers

The Power of INDXnet in Action

Institutional grade

Open a custodial account, directly in your name, from our affiliated US-based trust company. It's secure, accessible and bankruptcy remote.

Faster transfers

Transact with your counterparties in milliseconds 24x7x365. Every transfer is final and instantly available in pure USD.

Structurally safer

Powered by our network, your balances are eligible for up to $25 million of FDIC insurance. That's up to 100x more insurance coverage.

Operationally robust

With funds allocated across our network, you are automatically powered by more than 1,100 insured FIs for redundancy and scale.

Highly programmable

Accounts are enabled with real-time APIs. Web apps provide institutional grade controls. Integrations link where ever you need.

Daily transparency

Every day see where every cent of your funds are held - in overnight cash in insured banks here in the US. Fully transparent.

Transfer real USD 24x7x365 instantly

Accounts are real-time API enabled and secured with ECDSA signature-based authentication. POST one simple payload, and funds are delivered to your counterparty in milliseconds with finality.
Send an Instant Transfer
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curl --request POST \  
  --url https://api.app.indxco.com  
   --header 'X-API-KEY: <key>'\
   --header 'X-API-NONCE: <nonce>' \  
   --header 'X-API-SIGNATURE: <sig>'\
   --header 'X-API-TIMESTAMP: <time>'\
   --data '{     
      "sending_account_id: "<you>",     
      "counterparty_account_id: "<them>",     
      "amount": 354,650.00,
      "note": "For tradeId: 9210401"   
   }'
Response
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{
   "message": "<string>",
   "data": {
      "transaction_id": "4850235829352",
      "sending_account_id": "<you>",
      "counterparty_account_id: "<them>",
      "amount": 354,650.00,
      "note": "For tradeId: 9210401"
  }
}

Institutional Grade on Every Level

1,100+
Insured bank nodes to store your funds
100x
Deposit insurance compared to a single bank
24x7x365
Always on and available operations
400ms
Transfer settlement time with full finality
15 years
Experience optimizing cash holdings

Optimize your USD transfers

Open an account to transact faster and safer, at greater scale.
© 2026 INDX Processing, LLC or its affiliates.
INDX Processing, LLC (“INDX”) is a wholly-owned subsidiary of Fiserv Solutions, LLC, which is owned by Fiserv, Inc. (NASQ: FISV). INDX is not a Federal Deposit Insurance Corporation (“FDIC”) or National Credit Union Administration (“NCUA”)-insured bank, savings institution or credit union and the solutions provided by INDX are not themselves FDIC or NCUA insured. Rather, INDX acts as an agent for its customers, in conjunction with a regulated custodian, to place their funds into deposits accounts at receiving institutions that are FDIC or NCUA-insured, subject to program limitations and those imposed by the FDIC and NCUA, and may be insured on a pass-through basis. Certain conditions must be satisfied for FDIC and NCUA insurance coverage to apply to deposits held through an agent or custodian. FDIC and NCUA insurance coverage only covers the failure of a given institution. Customer funds that may be in transit, not yet settled or not otherwise deposited at an FDIC or NCUA insured institution may not eligible for pass-through insurance coverage.

INDX services requires the utilization of a regulated custodian. SC Trust Co. (“SC Trust”), a New Hampshire chartered and regulated non-depository trust company, provides non-discretionary custodial services to INDX and its customers. SC Trust does not offer deposit accounts insured by the FDIC or NCUA, nor does it make loans to customers. Services provided by INDX and SC Trust are each subject to terms and conditions entered into through written agreements with each of their customers. INDX and SC Trust each provide no representations or warranties, express or implied, except for those expressly set forth in those binding agreements. This is not an offer or solicitation to buy or sell a security and nothing herein shall be construed as investment advice. INDX and SC Trust are affiliated companies. Please carefully review the list of insured depositories where funds may be allocated.