A WireMock simulation of Plaid's REST API — covering holdings, investment transactions, transfer-authorization data, and refresh.
A shared instance of this template runs on a public endpoint — call it right now from curl, an SDK, or an AI agent. Responses are fixed examples and behavior can't be changed; rate limits apply.
Jump to the endpoints ↓Run this template as a mock API in WireMock Cloud for a private instance you control — edit stubs, add stateful scenarios, use dynamic response templating, and inspect requests in the log.
Open in WireMock Cloud (free) →Live sandbox · no signup, no API key
A running WireMock Cloud instance of this template, callable right now from a terminal, a script, or an AI agent.
Endpoints
POST Get Investment Holdings
curl -s -X POST 'https://3r72z.wiremockapi.cloud/investments/holdings/get' \
-H 'Content-Type: application/json' \
-d '{}'POST Get Investment Transactions
curl -s -X POST 'https://3r72z.wiremockapi.cloud/investments/transactions/get' \
-H 'Content-Type: application/json' \
-d '{}'POST Refresh Investments
curl -s -X POST 'https://3r72z.wiremockapi.cloud/investments/refresh' \
-H 'Content-Type: application/json' \
-d '{}'Spec catalog — The Plaid API (2020-09-14_1.688.6) · 4 endpoints
| Method | Path | Summary |
|---|---|---|
| POST | /investments/auth/get | Get data needed to authorize an investments transfer |
| POST | /investments/holdings/get | Get Investment holdings |
| POST | /investments/refresh | Refresh investment data |
| POST | /investments/transactions/get | Get investment transactions |
Unauthenticated WireMock Cloud demo sandbox for Plaid — not an official Plaid sandbox, and it returns simulated example data only.
The portfolio is small and legible: a Plaid IRA holding 100 shares of Apple at a 185.50 close, institution value 18,550, delivered in Plaid's two-array layout — holdings keyed by security_id on one side, the securities they reference on the other. The transactions route logs the single buy that built the position (10 shares, 1,855 total), and /investments/auth/get rounds the product out with the numbers an account transfer needs: ACATS, ATON, and retirement-401k identifiers beside the owner record.
Not the holdings and transactions routes — the stub securities omit the figi field, which plaid-python's strict response models treat as required, so deserialization raises before your code sees data. Call these endpoints with a plain HTTP client, or relax the check in a private copy by adding figi values to the stubs.
It's Plaid's normalization: many holdings can reference one security, so positions carry a security_id and the security details live once in a parallel list. The fixture's one-to-one pairing is the minimal case for exercising your join logic — resolve the AAPL record from the holding and the lookup path is covered.
For the mechanics, yes: quantity times close price equals the institution value exactly, and the buy transaction's amount is consistent with its quantity and price. Multi-position aggregation, cost-basis edge cases, and currency mixes need a richer dataset — which is stub editing in WireMock Cloud, not new code.
The Liabilities template — credit cards, a mortgage, and a student loan in one payload. Between the two, a net-worth feature can read both sides of a household balance sheet from deterministic fixtures.
Vendor names identify APIs represented by WireMock template sources. This page does not imply vendor endorsement, certification, partnership, or official integration status.