API Reference

Plaid's API endpoints and schemas are listed below. If you are looking for reference information about client-side integrations on web or mobile, see the Link docs.

To gain access to the Plaid API, create an account on the Plaid developer dashboard. Once you’ve completed the signup process and acknowledged our terms, we’ll provide a live client_id and secret via the Dashboard.

The Plaid API uses POST requests to communicate and HTTP response codes to indicate status and errors. All responses come in standard JSON. The Plaid API is served over HTTPS TLS v1.2+ to ensure data privacy; HTTP and HTTPS with TLS versions below 1.2 are not supported. All requests must include a Content-Type of application/json and the body must be valid JSON.

Almost all Plaid API endpoints require a client_id and secret. These may be sent either in the request body or in the headers PLAID-CLIENT-ID and PLAID-SECRET.

Every Plaid API response includes a request_id as the 'X-Request-Id' header. The request_id is included whether the API request succeeded or failed. For faster support, include the request_id when contacting support regarding a specific API call.

1https://sandbox.plaid.com (Sandbox)
2https://development.plaid.com (Development)
3https://production.plaid.com (Production)

Plaid has three environments: Sandbox, Development, and Production. Items, once created, cannot be moved to another environment. The Sandbox environment supports only test Items. The Development environment supports up to 100 live Items using real data. All testing should be done in the Sandbox and Development environments. All activity in the Production environment will be billed. When you’re getting ready to launch into Production, request Production API access via the dashboard.

API status is available at status.plaid.com.

API status and incidents are also available programmatically via the following endpoints:

• https://status.plaid.com/api/v2/status.json for current status
• https://status.plaid.com/api/v2/incidents.json for current and historical incidents

For a complete list of all API status information available programmatically, as well as more information on using these endpoints, see the Atlassian Status API documentation.

Many string fields returned by Plaid APIs are reported exactly as returned by the financial institution. For this reason, Plaid does not have maximum length limits or standardized formats for strings returned by the API. In practice, field lengths of approximately 280 characters will generally be adequate for storing returned strings, although Plaid does not guarantee this as a maximum string length.

Plaid returns all currency values as decimal values in dollars (or the equivalent for the currency being used), rather than as integers. In some cases, it may be possible for a money value returned by the Plaid API to have more than two digits of precision -- this is common, for example, when reporting crypto balances.

OpenAPI is a standard format for describing RESTful APIs that allows those APIs to be integrated with tools for a wide variety of applications, including testing, client library generation, IDE integration, and more. The Plaid API is specified in our Plaid OpenAPI GitHub repo.

The Postman collection is a convenient tool for exploring Plaid API endpoints without writing code. The Postman collection provides pre-formatted requests for almost all of Plaid's API endpoints. All you have to do is fill in your API keys and any arguments. To get started, check out the Plaid Postman Collection Quickstart on GitHub.

See the client libraries page for more information on Plaid's client libraries.