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latestOpenAPI 3.0.0raw.githubusercontent.com2026-08-173512,4063.0 MB

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plaid

Associate Items to a User

Associates Items with a user_id. If an Item is already associated with a different user_id, calling this endpoint will disassociate it from that User and reassociate it with the target User instead. A single request can associate up to 100 Items.

post/user/items/associate

Request body

client_idstring

Your Plaid API client_id. The client_id is required and may be provided either in the PLAID-CLIENT-ID header or as part of a request body.

secretstring

Your Plaid API secret. The secret is required and may be provided either in the PLAID-SECRET header or as part of a request body.

user_idstring required

A unique user identifier, created by /user/create. Integrations that began using /user/create after December 10, 2025 use this field to identify a user instead of the user_token. For more details, see New User APIs.

item_idsItemId[] required

An array of item_ids to be associated with the user_id.

Response

OK

request_idstring required

A unique identifier for the request, which can be used for troubleshooting. This identifier, like all Plaid identifiers, is case sensitive.