Added

[Payin Catalog]

Introduced dedicated pay-in catalog endpoints and separated payout/pay-in catalog groupings.

• Added Payin Catalog tag group
• Added GET /payin/country/list
• Added GET /payin/country/{country_code}/best

These endpoints provide supported pay-in countries and available pay-in service offerings.

Improved

[Catalog organization]

Renamed existing Catalog tag to Payout Catalog for clearer separation between payout and pay-in services.

Updated all payout catalog endpoints to use the new tag grouping.

Improved

[Initiate pay-in response model]

Expanded POST /payin/{user_token} response documentation to support asynchronous and multi-step pay-in flows.

Added:

• New InitiatePayinResp schema
• required_action support
• instructions
• requires_commit
• network_response
• error and error_type
• funding_code
• payment_reference

Added comprehensive examples for:

• Approved card AFT
• Instant completed pay-ins
• Cash deposit flows
• Partner declines
• Validation failures

Clarified that HTTP 201 only indicates request acceptance and that integrators must inspect the response status and error fields.

Improved

[Tax forms]

Added optional address support to:

• Form1099NECRequest
• Form1099MISCRequest
• Form1099KRequest

When provided, the supplied address is used to update the user profile before generating the tax form.

Improved

[File upload requests]

Added file_upload_link field to file upload request responses.

If the upload has not yet been completed, this field contains a URL where the user can upload the requested files.

Improved

[Documentation cleanup]

Improved multiple catalog and pay-in endpoint descriptions for clarity and consistency, including:

• Better payout/pay-in terminology separation
• More accurate service descriptions
• Clarified asynchronous processing behavior