I looked over the API documentation and I didn't see anything about how to get logos, but plaid clearly has them as they appear in the link app. Is there any way that I can also get access to those logo as part of the API or through another mechanism using an "Item" id?
While not documented at the time of this writing, it apparently can be done by adding an options parameter to a institution request with the value of {"include_display_data": true}. With the node API using the getInstitutionById method and Vangaurd it looks like this.
client.getInstitutionById('ins_108768', {include_display_data: true} (err, result) => {
// Handle err
const logo = result.institution.logo;
});
The value of logo will either be null or a base64 encoded string containing the binary data of the logo.