Routing Bank Number Checker API

Routing Bank Number Checker API

The Routing Bank Number Checker API is a tool that allows developers to validate bank routing numbers. This API checks the validity of the routing numbers entered, ensuring that they are correct and belong to a legitimate bank. It can be integrated into banking or financial software applications to prevent fraud and errors in transactions.

API description

About the API: 

The Routing Bank Number Checker API is a powerful tool for financial institutions and businesses that handle financial transactions. It provides a simple and efficient way to validate the routing numbers of banks, ensuring that payments are processed accurately and securely. With this API, developers can easily integrate routing number validation into their applications, minimizing the risk of errors and fraud.

The API works by verifying the routing number against a database of legitimate banks. If the routing number is invalid or does not belong to an existing bank, the API will return an error message, indicating that the payment cannot be processed. On the other hand, if the routing number is valid, the API will deliver additional information about the bank, such as the bank name, address, and phone number. This information can be used to verify the legitimacy of the bank and ensure that the payment is being sent to the correct institution.

In addition to validating routing numbers, the Routing Bank Number Checker API can also be used to check the status of a bank account. This feature is particularly useful for businesses that need to verify the status of a customer's bank account before processing a payment. By using the API, businesses can avoid sending payments to closed or inactive accounts, which can result in costly fees and delays.

The Routing Bank Number Checker API is easy to integrate into existing applications, with a simple RESTful interface that supports both XML and JSON formats. The API also includes comprehensive documentation, code examples, and support for multiple programming languages, making it easy for developers to get started.

Overall, the Routing Bank Number Checker API is a valuable tool for any business or financial institution that handles financial transactions. By ensuring the accuracy and security of payments, businesses can save time and money, while providing a better customer experience. With its powerful features and ease of integration, the API is a must-have for any organization that wants to streamline its payment processing and improve its bottom line.

What this API receives and what your API provides (input/output)?

Pass any routing bank number to lookup. Check if it's valid or not, and receive relevant data from the bank. 

What are the most common uses cases of this API?

  1. Payment processing: The Routing Bank Number Checker API can be used by businesses to ensure that payments are processed accurately and securely. By validating routing numbers and checking the status of bank accounts, businesses can avoid errors and fraud, while providing a better customer experience.

  2. Customer onboarding: Financial institutions can use the Routing Bank Number Checker API during the customer onboarding process. By validating the routing number of a new customer's bank account, financial institutions can ensure that the account is legitimate and active before opening it. This can help prevent fraud and improve the accuracy of customer data.

  3. Account reconciliation: Businesses that handle a large number of transactions can use the Routing Bank Number Checker API to reconcile their accounts. By verifying the routing numbers and statuses of bank accounts, businesses can ensure that all transactions have been processed correctly and that their accounts are up-to-date.

  4. Compliance monitoring: The Routing Bank Number Checker API can be used by compliance departments to monitor for suspicious activity. By checking the routing numbers and statuses of bank accounts, compliance departments can identify potential cases of fraud or money laundering and take appropriate action.

  5. Fraud prevention: The Routing Bank Number Checker API can be used to prevent fraudulent activity. By verifying the routing numbers and statuses of bank accounts, businesses can identify suspicious activity and take action to prevent fraud before it occurs. This can help save businesses time and money, while also protecting their reputation.

Are there any limitations to your plans?

Besides the number of API calls, there is no other limitation

API Documentation


This endpoint returns information about a bank by passing in the routing number.



Routing Number Lookup - Endpoint Features
Object Description
number [Required] The routing number that you want to lookup
Test Endpoint


                                                                                                                                                                                                                            {"status":200,"success":true,"message":"Routing Bank 121000248 is valid","data":{"routing_number":"121000248","date_of_revision":"091012","new_routing_number":"","bank":"WELLS FARGO BANK, NA","address":"255 2ND AVE SOUTH","city":"MINNEAPOLIS","state":"MN","zip":"55479","phone":"(800) 745-2426"}}

Routing Number Lookup - CODE SNIPPETS

curl --location --request GET '' --header 'Authorization: Bearer YOUR_API_KEY' 


API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Routing Bank Number Checker API REST API, simply include your bearer token in the Authorization header.


Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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The Routing Bank Number Checker API is a tool that developers can use to validate bank routing numbers. It allows you to check the accuracy and legitimacy of routing numbers associated with banks.

Validating bank routing numbers is crucial for ensuring that financial transactions are processed accurately. By using the Routing Bank Number Checker API, you can verify that the routing numbers entered belong to legitimate banks, reducing the risk of errors or fraudulent activities.

To use the API, you pass a routing number as a parameter. The API will then check the validity of the routing number and provide information about the associated bank, including the bank's name, address, city, state, zip code, and contact phone number.

If an invalid or nonexistent routing number is provided, the API will return an error response indicating that the routing number is not valid. The response will provide appropriate error codes or messages to indicate the issue.

The Routing Bank Number Checker API processes one routing number at a time. If you need to validate multiple routing numbers, you will need to make separate API calls for each routing number.

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Sometimes depending on the bank's fraud protection settings, a bank will decline the validation charge we make when we attempt to be sure a card is valid. We recommend first contacting your bank to see if they are blocking our charges. If more help is needed, please contact [email protected] and our team will investigate further

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