Accept a dispute and acknowledge liability, returning funds to the cardholder. When you accept a dispute, Square debits the disputed amount from your account and updates the dispute state to ACCEPTED. This action is irreversible - once accepted, a dispute cannot be challenged. Only use after reviewing all evidence and determining that challenging the dispute is not viable. Note: Requires DISPUTES_WRITE permission scope.

Tool to preview order pricing without creating an order. Use when you need to calculate the total cost, taxes, discounts, and other pricing details for an order before finalizing it. Particularly useful for integrating rewards, discounts, and complex pricing scenarios.

Cancels a Square invoice, preventing further payments from being collected. Requirements: - Invoice must be in SCHEDULED, UNPAID, or PARTIALLY_PAID state - Cannot cancel invoices in DRAFT state or terminal states (PAID, REFUNDED, CANCELED, FAILED) - Requires INVOICES_WRITE and ORDERS_WRITE OAuth scopes - Version number must match the current invoice version to prevent conflicts After cancellation, the associated order status is set to CANCELED and webhook events are triggered.

Cancels (voids) a payment that is in APPROVED status. This is typically used in delayed capture scenarios where a payment was authorized but not yet captured, allowing you to void the authorization before settlement. Important: Only payments with APPROVED status can be canceled. Attempting to cancel a payment in any other status (COMPLETED, PENDING, CANCELED, FAILED) will result in an error. Once canceled, the payment status changes to CANCELED and the card details status changes to VOIDED. Required permissions: PAYMENTS_WRITE

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.

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.

Upload text evidence for a dispute challenge. Use this to submit textual information (up to 500 characters) that supports your case in a payment dispute. After uploading all evidence, you must call SubmitEvidence to finalize the dispute challenge. Endpoint: POST /v2/disputes/{dispute_id}/evidence-text

Upload and attach a file to a Square invoice. Use this action to add supplementary documents (receipts, contracts, supporting documentation) to an existing invoice. Attachments can only be added to invoices in DRAFT, SCHEDULED, UNPAID, or PARTIALLY_PAID state. Square supports up to 10 attachments per invoice with a combined maximum size of 25 MB in production (1 KB in Sandbox). Supported file formats: GIF, JPEG, PNG, TIFF, BMP, PDF. Creating an attachment increments the invoice version and triggers an invoice.updated webhook event.

Removes a specific piece of evidence from a dispute. Evidence that is removed will NOT be sent to the bank. This action requires the DISPUTES_WRITE permission scope. Important: You CANNOT remove evidence after it has been submitted to the bank using the SubmitEvidence endpoint. The deletion is permanent and cannot be undone. Use this when: - You need to remove evidence that was uploaded by mistake - You want to replace evidence with a better version (delete old, upload new) - The evidence is no longer relevant to the dispute case Prerequisites: - A valid dispute_id (obtain from list/retrieve disputes) - A valid evidence_id (obtain from list evidence or create evidence response) - The evidence must not have been submitted to the bank yet

Tool to delete a Square invoice (only DRAFT invoices can be deleted).

Tool to delete an attachment from a Square invoice. Endpoint: DELETE /v2/invoices/{invoice_id}/attachments/{attachment_id}

Permanently deletes a webhook subscription by its ID. Once deleted, the subscription will no longer receive event notifications. This action cannot be undone. Note: Webhook subscriptions are application-level resources and require personal access token authentication (not OAuth tokens).

Retrieves detailed information about a specific piece of evidence that was uploaded for a dispute. Use this action to: - Get metadata about evidence (file details, upload time, evidence type) - Verify evidence was uploaded successfully - Review evidence details before submitting a dispute response Note: This returns metadata only, not the actual file content. To upload evidence, use the Create Dispute Evidence File or Create Dispute Evidence Text actions. Endpoint: GET /v2/disputes/{dispute_id}/evidence/{evidence_id}

Retrieves detailed information about a specific Square invoice by its ID. Returns the complete invoice object including payment requests, recipient details, accepted payment methods, custom fields, attachments, and current status. Use this when you need to view or verify invoice details for a known invoice ID. Required permission: INVOICES_READ

Tool to list evidence items associated with a given dispute. Endpoint: GET /v2/disputes/{dispute_id}/evidence

Tool to list invoices for a Square location.

Tool to list available webhook event types. Use when you need to discover event types before creating or updating a webhook subscription.

List all webhook subscriptions owned by your application. Returns webhook subscriptions with their event types, notification URLs, and status. Supports filtering by enabled/disabled status, sorting by creation date, and pagination for large result sets. Note: Webhook subscriptions are application-level resources and require personal access token authentication (not OAuth tokens).

Tool to retrieve a Square dispute by ID. Endpoint: GET /v2/disputes/{dispute_id}

Retrieves detailed information about a specific Square order by its ID. Use this tool when you need to: - Fetch complete details of an order including line items, pricing, taxes, and discounts - Check order status and fulfillment information - View payment tenders and refunds associated with an order - Access order metadata and timestamps Requires: ORDERS_READ permission scope.

Retrieves a Square-hosted payment link by ID. Returns complete payment link details including the checkout URL, associated order ID, checkout options, pre-populated buyer data, and creation timestamps. Requires ORDERS_READ permission.

Tool to retrieve information about an OAuth access token or personal access token. Use when you need to verify token validity, check token expiration, inspect authorized scopes, or validate merchant association before making API calls.

Retrieve a Square webhook subscription by its ID. Returns subscription details including name, enabled status, event types, notification URL, and signature key. Note: Requires personal access token authentication with DEVELOPER_APPLICATION_WEBHOOKS_READ scope (OAuth tokens are not supported for webhook subscriptions).

Submits evidence for a dispute to the cardholder's bank. IMPORTANT: You must upload evidence FIRST using CreateDisputeEvidenceText or CreateDisputeEvidenceFile before calling this endpoint. Once evidence is submitted, it cannot be modified or removed. The dispute state will change to PROCESSING after successful submission. Use this when: (1) You have uploaded all evidence files/text, (2) The dispute is in EVIDENCE_REQUIRED state, and (3) You are ready to finalize and send evidence to the bank before the due date.

Tests a webhook subscription by sending a test event to the configured notification URL. Use this to verify that your webhook endpoint is correctly receiving and processing Square events. The response includes the HTTP status code returned by your endpoint and the test payload that was sent. Useful after creating or updating a subscription to confirm proper integration.

Updates an existing Square order by adding, modifying, or removing fields. Use for OPEN or DRAFT orders only (COMPLETED/CANCELED orders cannot be updated). Requires the current order version number for optimistic concurrency control - get this from retrieve/search order first. Supports sparse updates: only include fields you want to change. To remove fields, use fields_to_clear array with dot notation paths. Common use cases: adding line items, updating quantities, applying discounts/taxes, modifying fulfillment details, updating metadata.

Tool to update a Square webhook subscription. Use when you need to modify subscription settings such as name, enabled state, event types, notification URL, or API version of an existing webhook subscription.

Tool to rotate the signature key for a webhook subscription. Use when you need to replace the current signature key for security purposes.

Tool to add a customer to a customer group. Use when you need to associate a customer with a specific group for targeted marketing, loyalty programs, or customer segmentation.

Tool to create multiple customer profiles in a single request. Use when you need to efficiently create up to 100 customers at once. Each customer is identified by a unique idempotency key.

Tool to create a new customer profile in Square. Use when you need to add a customer to the Square account. At least one of given_name, family_name, company_name, email_address, or phone_number is required.

Tool to create a customer-related custom attribute definition. Use when you need to define a new custom attribute that can be applied to customer profiles. Custom attributes allow storing additional structured data on customers beyond the standard fields.

Tool to create a new customer group for a business. Use when you need to organize customers into groups for targeted marketing or segmentation.

Tool to create a new business location in a Square account. Use when you need to add a new physical or mobile location for the merchant.

Tool to create a location-related custom attribute definition. Use when you need to define new custom attributes for Square location objects to store additional business-specific data.

Tool to delete a Square customer profile. Use when you need to permanently remove a customer record from Square.

Tool to delete a custom attribute from a customer profile. Use when you need to remove custom data associated with a specific customer. Requires the CUSTOMERS_WRITE OAuth permission scope.

Tool to delete a customer-related custom attribute definition. Use when you need to remove a custom attribute definition that is no longer needed. This action requires CUSTOMERS_WRITE permission.

Tool to delete a customer group by its ID. Use when you need to permanently remove a customer group from Square.

Tool to bulk delete customer profiles from Square. Use when you need to delete multiple customer profiles at once (1-100 customers per request). Each successful deletion returns an empty object; failed deletions include error details. Note that delete events trigger separate webhook notifications per customer.

Tool to delete a custom attribute from a location. Use when you need to remove custom data associated with a specific business location. Requires the MERCHANT_PROFILE_WRITE OAuth permission scope.

Tool to delete a location-related custom attribute definition. Once deleted, the custom attribute definition cannot be used to add custom attributes to locations. Use when you need to remove obsolete or incorrect custom attribute definitions from your Square account.

Tool to delete custom attributes from multiple locations in a single batch request. Use when you need to remove custom metadata from multiple business locations efficiently. To delete custom attributes owned by other applications, the attribute's visibility must be set to VISIBILITY_READ_WRITE_VALUES.

Tool to delete a custom attribute from a merchant profile. Use when you need to remove custom data associated with a specific merchant. Requires the MERCHANT_PROFILE_WRITE OAuth permission scope.

Tool to delete a merchant-related custom attribute definition. Once deleted, the custom attribute definition cannot be used to add custom attributes to merchants. Use when you need to remove obsolete or incorrect custom attribute definitions from your Square account.

Tool to delete custom attributes from multiple merchants in a single batch request. Use when you need to remove custom metadata from merchant profiles efficiently. To delete custom attributes owned by other applications, the attribute's visibility must be set to VISIBILITY_READ_WRITE_VALUES.

Tool to retrieve the business booking profile for a Square merchant via GraphQL. Use when you need to check if bookings are enabled, view cancellation policies, or access booking configuration settings. This is an alpha feature.

Tool to retrieve merchant information associated with the access token using Square's GraphQL API. Use when you need to obtain the merchant ID required for other GraphQL queries, or to get merchant details like business name, status, currency, and main location.

Retrieves a custom attribute from a customer profile in Square. Use this when you need to access specific custom data associated with a customer, such as preferences, external IDs, or other merchant-defined information. Requires CUSTOMERS_READ permission.

Tool to retrieve a customer-related custom attribute definition from Square. Use when you need to fetch the schema, visibility, or metadata of a specific custom attribute definition by its key.

Tool to retrieve customer profiles from Square Customer Directory using GraphQL API. Use when you need to fetch customer information including name, contact details, and profile data for a specific merchant. Requires merchant ID filter.

Tool to retrieve detailed information about a specific Square merchant by ID. Use when you need to fetch merchant profile data including business name, country, currency, and main location ID. Use 'me' as the merchant_id to retrieve the currently authenticated merchant.

Tool to retrieve location-level settings for Square online checkout. Use when you need to get checkout configuration including customer notes, policies, branding, and tipping options for a specific location.

Tool to list requested channels from Square. Use when you need to retrieve channel information for a specific reference type, reference ID, or status.

Tool to list customer-related custom attribute definitions from Square. Use when you need to discover available custom attributes that can be attached to customer profiles.

Tool to retrieve customer custom attribute definitions via Square's GraphQL API. Use when you need to discover available custom attributes and their metadata for customer profiles. Alpha feature.

Tool to list custom attributes for a customer profile. Use when you need to retrieve all custom data associated with a specific customer, including optional definitions that provide metadata about each attribute.

Tool to retrieve the list of customer groups of a business. Use when you need to discover customer group IDs or list all customer groups for segmentation and targeting purposes.

Tool to retrieve customer profiles associated with a Square account. Use when you need to list customers for CRM, reporting, or customer management purposes. Only returns profiles with public information (given_name, family_name, company_name, email_address, or phone_number).

Tool to retrieve the list of customer segments of a business. Use when you need to discover customer segment IDs for targeting or filtering customer groups in Square.

Tool to list location-related custom attribute definitions from Square. Use when you need to discover available custom attributes that can be attached to location profiles.

Tool to retrieve all business locations from a Square account. Use when you need to discover available location IDs for other Square API calls that require location_id parameter (like listing invoices or payments).

Tool to list custom attributes for a specific location in Square. Use when you need to retrieve all custom attribute values associated with a particular location.

Tool to list merchant-related custom attribute definitions from Square. Use when you need to discover available custom attributes that can be attached to merchant profiles.

Tool to retrieve merchant account information associated with the access token. Use when you need to get merchant profile details including business name, country, currency, and main location ID.

Tool to list custom attributes for a specific merchant in Square. Use when you need to retrieve all custom attribute values associated with a particular merchant.

Tool to list payments by location and time range to enable reconciliation and net sales reporting from Square POS. Use when you need to retrieve payment records for reporting, analytics, or reconciliation purposes.

Removes a customer from a customer group. Use this when you need to disassociate a customer from a specific group. Once removed, the customer will no longer be part of the group and won't receive group-specific benefits or targeting.

Tool to retrieve multiple customer profiles in a single request. Use when you need to efficiently fetch up to 100 customer profiles by their IDs.

Retrieve a Square channel by its ID. Channels represent different distribution points for catalog content, including physical locations and online platforms. Use this to get detailed information about a specific channel, including its status, associated references, and metadata.

Tool to bulk retrieve multiple Square channels by their IDs in a single request. Use when you need to fetch specific channels by their unique identifiers rather than listing all channels.

Tool to retrieve detailed information about a specific Square customer by ID. Use when you need to fetch customer profile data including contact information, preferences, and group memberships.

Tool to retrieve a specific Square customer group by ID. Use when you need to fetch details about a customer group including its name and timestamps.

Tool to retrieve a specific customer segment by its ID. Use when you need to get details about a customer segment including its name and timestamps.

Tool to retrieve detailed information about a specific Square location by ID. Use when you need to get complete details about a specific location, including address, business hours, contact information, and capabilities.

Retrieves a custom attribute associated with a location in Square. Use this when you need to access specific custom data associated with a location, such as metadata, external IDs, or other merchant-defined information.

Tool to retrieve a location-related custom attribute definition. Use when you need to get the schema, visibility, and metadata for a custom attribute associated with locations.

Retrieves a custom attribute associated with a merchant in Square. Use this when you need to access specific custom data associated with a merchant, such as metadata, external IDs, or other merchant-defined information.

Tool to retrieve a merchant-related custom attribute definition from Square. Use when you need to fetch the schema, visibility, or metadata of a specific custom attribute definition by its key.

Tool to retrieve merchant information including status, main location details, and capabilities using Square's GraphQL API. Use when you need to fetch merchant profile data for specific merchant IDs.

Tool to search customer profiles in Square Customer Directory. Use when you need to find customers by email, phone, creation date, or other filters. Returns paginated results with optional total count.

Tool to search orders across one or more Square locations with filters. Use when you need to find orders within a date range, by state, by customer, or other criteria. This is the primary way Square exposes 'list orders for a date range' functionality.

Tool to update an existing Square customer profile. Use when you need to modify customer details like name, email, address, or phone number. Supports sparse updates: only include fields you want to change, null values will remove fields. Include the version field for optimistic concurrency control.

Tool to update a customer-related custom attribute definition in Square. Use when you need to modify the name, description, visibility, or schema of an existing custom attribute definition. Supports sparse updates: only include fields you want to change. Use the version parameter for optimistic concurrency control to prevent conflicting updates.

Tool to update a customer group's information by its ID. Use when you need to modify the name or other attributes of an existing customer group in Square.

Tool to update multiple customer profiles in a single batch operation. Use when you need to efficiently update 1-100 customer profiles at once. Each update request includes the customer ID as a key and the customer data to update as the value. Only modified fields need to be provided, and fields can be removed by setting them to null. Requires version number for optimistic concurrency control.

Tool to update an existing business location in a Square account. Use when you need to modify location details like name, description, address, business hours, contact information, or social media profiles.

Tool to update a location-related custom attribute definition in Square. Use when you need to modify the description, name, visibility, or schema of an existing location custom attribute definition.

Tool to update a merchant-related custom attribute definition in Square. Use when you need to modify the description, name, visibility, or schema of an existing merchant custom attribute definition.

Tool to update location-level settings for Square online checkout. Use when you need to modify checkout configuration including customer notes, policies, branding, and tipping options for a specific location. Supports sparse updates: only include fields you want to change.

Tool to create or update a custom attribute for a customer profile. Use when you need to store custom data on a customer record, such as preferences, loyalty tiers, or external system IDs. The custom attribute key must match an existing custom attribute definition in the Square account.

Tool to create or update custom attributes for multiple customers in a single batch request. Use when you need to set custom data on customer profiles (e.g., preferences, loyalty tiers, tags). Supports 1 to 25 upsert operations per request. Before using this action, ensure the custom attribute definitions exist in your Square seller account. The custom attribute keys must match existing definitions. Use optimistic concurrency (version field) to prevent overwriting concurrent updates. Required permissions: CUSTOMERS_WRITE

Tool to create or update a custom attribute for a location. Use when you need to store custom data on a location record, such as capacity limits, special features, or external system IDs. The custom attribute key must match an existing custom attribute definition in the Square account.

Tool to create or update custom attributes for multiple locations in a single batch request. Use when you need to set custom data on location records (e.g., store ratings, delivery zones, tags). Supports 1 to 25 upsert operations per request. Before using this action, ensure the custom attribute definitions exist in your Square seller account. The custom attribute keys must match existing definitions. Use optimistic concurrency (version field) to prevent overwriting concurrent updates. Required permissions: MERCHANT_PROFILE_WRITE

Tool to create or update a custom attribute for a merchant profile. Use when you need to store custom data on a merchant record, such as business notes, external system IDs, or configuration values. The custom attribute key must match an existing custom attribute definition in the Square account.

Tool to create or update custom attributes for multiple merchants in a single batch request. Use when you need to set custom data on merchant profiles (e.g., business types, establishment dates, merchant categories). Supports 1 to 25 upsert operations per request. Before using this action, ensure the custom attribute definitions exist in your Square seller account. The custom attribute keys must match existing definitions. Use optimistic concurrency (version field) to prevent overwriting concurrent updates. Required permissions: MERCHANT_PROFILE_WRITE