Square provides payment processing, POS systems, invoicing, and e-commerce tools, enabling sellers to accept card payments and manage their business
Tools
Accept Dispute
Tool to accept a dispute and mark it as lost. Use after reviewing all evidence and deciding to accept liability.
Cancel Invoice
Tool to cancel an invoice. Use when you need to void an existing invoice; ensure the invoice isn't in DRAFT or a terminal state before cancelling.
Cancel Payment
Tool to cancel a payment. Use after confirming the payment is in APPROVED status.
Create Card
Tool to create a card on file. Use when you need to securely store a customer's card for future payments. Requires a valid nonce or payment ID.
Create Dispute Evidence File
Tool to upload a file as dispute evidence. Use when you need to attach supporting documents (PDF, image, etc.) to an existing dispute. Use after creating or retrieving a dispute.
Create Dispute Evidence Text
Tool to upload text as evidence for a dispute challenge. Endpoint: POST /v2/disputes/{dispute_id}/evidence-text