# Connect a bank account through Plaid

**POST /extraction/financial-data/item/public_token/exchange**

Exchanges the public token from Plaid Link, saves the bank connection for the caller's extraction code, updates the case's data-source status and queues fetching the accounts. The Plaid access token is never returned. Returns 409 while the organization's Plaid onboarding is not complete.


## Servers
- http://api.example.com: http://api.example.com ()


## Authentication methods
- Access token


## Parameters
### Headers

- **extraction-code** (string)
  Extraction code associated with the case




### Body: application/json (object)

- **publicToken** (string)
  Temporary token generated by Plaid Link (expires after 30 minutes).



## Responses
### 201


#### Body: application/json (object)
- **data** (object)

- **statusCode** (number)

- **timestamp** (string(date-time))



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