Tool to create a new contact person for a customer in Chaser. Requires customer_id and external_id. Use when adding additional contacts to an existing customer account.

Tool to create a new invoice record in the organization. Use after ensuring the customer exists in Chaser.

Creates a new overpayment record in Chaser for tracking customer overpayments. Overpayments represent amounts paid by customers in excess of invoice amounts and can be used to offset future invoices. The customer must exist in Chaser before creating an overpayment (use POST /customers first if needed). Valid statuses: DRAFT, SUBMITTED, AUTHORISED, PAID, VOIDED, DELETED.

Tool to delete a contact person from a customer record in Chaser. Use this when you need to remove a specific contact person associated with a customer. Requires both the customer identifier and the contact person identifier.

Tool to get a specific contact person by ID for a customer. Use when you need to retrieve detailed information about a contact person associated with a customer in Chaser.

Retrieve detailed information for a specific credit note by its ID. Accepts both internal Chaser IDs and external credit note IDs (with 'ext_' prefix). Use when you need to fetch complete details of a single credit note.

Retrieves a list of credit notes from Chaser. Supports filtering by customer, status, and date range. Returns all credit notes if no filters are specified.

Tool to retrieve information about the current organisation associated with the API credentials. Use when you need the organisation ID, currency, timezone, or legal details for the authenticated account.

Retrieve detailed information for a specific customer by their Chaser customer ID. Use this after obtaining the customer_id from listing customers or creating a customer. The customer_id is the internal Chaser identifier (e.g., 'cust_abc123'), not the external_id from your source system.

Tool to retrieve a list of all customers associated with the organization. Use when you need to display or process complete customer contact and status information.

Tool to retrieve detailed information for a specific invoice by its ID. Use when you need to view invoice details, payment status, or associated customer information.

Tool to retrieve information about the connected organizations. Use when you need organization IDs, currency, timezone, or legal details before other operations.

Retrieve detailed information for a specific overpayment by its ID. Use when you need to fetch overpayment details, check remaining credit, or verify overpayment status. Both internal ID (e.g., op_XXX) and external ID with 'ext_' prefix are supported.

Tool to check the status of the Chaser API. Use when you need to verify if the API is operational before making other requests.

Tool to retrieve contact persons for a specific customer. Returns a paginated list of contact persons with their details. Use when you need to get contact information for a customer's representatives.

Tool to retrieve invoices with pagination and filtering. Use when you need to fetch invoice records from Chaser with support for various filter criteria including status, amounts, dates, and customer information.

Tool to retrieve overpayments from Chaser with pagination and filtering. Use when you need to list overpayments, check remaining credits, or filter by customer, amount, currency, or date.

Creates a new credit note record in Chaser for tracking customer credits. Credit notes represent amounts owed to customers and are used to reduce outstanding invoices. The customer must exist in Chaser before creating a credit note (use POST /customers first). Note: ACTIVE is not a valid status for creating credit notes via API. Valid statuses: SUBMITTED, AUTHORISED, PAID, VOIDED, DELETED.

Tool to create a new customer record in Chaser. Use after obtaining Basic Auth credentials.

Update an existing credit note in Chaser. All fields are optional. Use this to modify credit note details such as amount, status, or customer association.

Tool to update an existing customer's information using their unique Chaser customer ID. Use after confirming the customer's ID (the 'id' field, not 'externalID'). Example: "Update contactEmailAddress for customer ID cust_abc123."

Update an existing invoice in Chaser by its internal ID. Use this to modify invoice status, amounts, dates, payments, or customer associations. Requires the internal Chaser invoice ID (e.g., 'inv_abc123') from invoice creation or retrieval responses.

Tool to update a contact person for a customer in Chaser. Use when you need to modify contact person details such as name, email, or phone numbers.

Tool to update an overpayment record in Chaser. Use when modifying overpayment details such as remaining credit, status, or other fields. All fields except overpayment_id are optional.

Upload a PDF file to an existing invoice in Chaser. Use this to attach invoice documentation. The file must be a valid PDF document and is sent as multipart/form-data.

Tool to bulk upsert up to 100 customers in a single operation. Customers are matched by external_id (or id) for updates. Use when you need to create or update multiple customers efficiently.

Tool to bulk insert or update contact persons for a customer. Use when you need to create or update multiple contact persons in a single request (up to 100). Matching is done by external_id - existing contacts with the same external_id will be updated, new ones will be inserted.

Tool to bulk upsert up to 100 credit notes in a single request. Matches by credit_note_id (or id). Use when you need to create or update multiple credit notes efficiently in Chaser.

Tool to bulk upsert up to 100 invoices in a single request. Invoices are matched by invoice_id for updates or created if not found. Use when you need to create or update multiple invoices efficiently.

Tool to bulk upsert up to 100 overpayments in Chaser, matching by overpayment_id. Use when you need to create or update multiple overpayment records in a single operation.