API reference for obtaining and managing tokens from Link
Token exchange flow
Most API calls to Plaid endpoints require an
access_token provides access to a specific Item, which is a Plaid term for a login at a financial institution.
The primary flow for obtaining a Plaid
access_token works as follows:
- Obtain a
- Initialize Link by passing in the
link_token. When your user completes the Link flow, Link will pass back a
public_token. For more information on initializing and receiving data back from Link, see the Link documentation.
- Exchange the
access_token can then be used to call Plaid endpoints and obtain information about an Item.
In addition to the primary flow, several other token flows exist. The Link update mode flow allows you to update an
access_token that has stopped working. The Sandbox testing environment also offers the
/sandbox/public_token/create endpoint, which allows you to create a
public_token without using Link.