A WireMock simulation of U.S. Bank's REST API — covering deposit, credit card, and loan account reporting — balances, transactions, statements, and ACH returns.
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Endpoints
GET Get Accounts
curl -s -X GET 'https://98we4.wiremockapi.cloud/accounts'POST Get Current-Day Account Balances
curl -s -X POST 'https://98we4.wiremockapi.cloud/accounts/current-day' \
-H 'Content-Type: application/json' \
-d '{}'POST Get Previous-Day Account Balances
curl -s -X POST 'https://98we4.wiremockapi.cloud/accounts/previous-day' \
-H 'Content-Type: application/json' \
-d '{}'Spec catalog — Corporate Account Information (2.5.0) · 16 endpoints
| Method | Path | Summary |
|---|---|---|
| GET | /accounts | Get list of accounts for the authorized customer. |
| GET | /accounts/{accountID}/balance | Get good funds balance for one demand deposit account. |
| GET | /accounts/{accountID}/statements | Get deposit, credit card, trust, and loan account statements list. |
| GET | /accounts/{accountID}/statements/{statementID} | Get an account statement image. |
| GET | /accounts/{accountID}/transactions/current-day | Get transactions of an account for current-day. |
| GET | /accounts/{accountID}/transactions/previous-day | Get transactions of an account for prior business days over a date range. |
| POST | /accounts/current-day | Get account balances for an array of accounts for current-day. |
| POST | /accounts/previous-day | Get account balances for an array of accounts for previous-day. |
| POST | /accounts/statements/requests | Get a requestID for your statement generating request using async workflow. |
| GET | /accounts/statements/requests/{requestID} | Get binary PDF statement file using async workflow. |
| POST | /accounts/transactions/ach-returns-and-noc/current-day | Get ACH returns and NOC data for an array of accounts for current-day. |
| POST | /accounts/transactions/ach-returns-and-noc/previous-day | Get ACH returns and NOC data for an array of accounts for previous-day. |
| POST | /creditcard-accounts | Get Credit Card account balances for an array of accounts. |
| GET | /creditcard-accounts/{accountID}/transactions | Get transactions of a credit card account over a date range. |
| POST | /loan-accounts | Get loan account balances and summary for an array of accounts. |
| GET | /loan-accounts/{accountID}/transactions | Get transactions of a loan account over a date range. |
Unauthenticated WireMock Cloud demo sandbox for U.S. Bank — not an official U.S. Bank sandbox, and it returns simulated example data only.
Everything reports on one treasury persona: Arc Security Inc, banking at US Bank East Grand Forks, with a DDA carrying a good-funds balance just shy of $240 million. The detail runs deep in the direction treasury integrations actually need — transactions arrive with BAI type codes, SEC codes, and full ACH company detail down to the entry description; a dedicated route serves ACH returns and notifications of change; and the credit card summary demonstrates a partial-success pattern, pairing its 200 response with a warnings array flagging accounts that couldn't be fully reported. The path's account id is decorative — every route answers for whatever id you supply and reports the canonical account in the body.
A two-step handoff worth wiring tests around: the request route returns 202 with a requestID and IN_PROCESS status, and fetching that requestID returns a raw PDF-typed body rather than JSON. Client code learns to poll, then switch parsers for the binary leg — the exact seam where async document retrieval usually breaks.
They're drawn from the real vocabularies — a BAI code of 514 on an outgoing international wire, CCD as the SEC code on a corporate ACH entry, TAXPAYMENT as the entry description. Mapping tables and transaction-classification logic can be exercised against codes your production parser will genuinely meet.
As a partial success. The response is a 200 whose warnings array carries code 200.3202 for accounts that couldn't be fully provided — so treating any warning-bearing response as a failure, or ignoring warnings entirely, are both bugs this fixture is positioned to catch.
No — fromDate and toDate are accepted and the same fixture comes back, permanently dated 2020. Assertions belong on structure and code values, not on dates or row counts; range-boundary logic needs a private copy with stubs per window. The loan transaction route compensates with pageMeta landing on page 5 of 20, giving mid-stream pagination a real test case.
No — this API only watches the money. Opening cardholder accounts, changing limits, and lifecycle operations live in the Corporate Credit Cards template; the two together cover a corporate card program's write and read sides.
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