Integration · Accounting

Connect Claude & ChatGPT to Chaser

Ask your AI which invoices are overdue, what Chaser has already sent a customer, or to pause reminders while a dispute is sorted out. It can read and update customers, contact persons and invoices, list credit notes, put customers on chasing schedules, and keep notes and tasks up to date. Your credit control questions get answered without clicking through each customer.

Connect Chaser free

Free plan, no credit card. Takes about a minute.

Try asking

“Which invoices are more than 30 days overdue?”
The AI lists invoices filtered by status and due date, with customer and amount due.
“What reminders has Chaser sent for invoice 1043?”
It reads the invoice's chasing history: reminders sent and other events.
“Pause chasing for Nordic Foods while we sort out their complaint.”
It finds the customer and pauses reminders for all of their invoices. Chasing can be resumed later.

What your AI can do

Invoices and credit notes

List and filter invoices by status, dates and amounts, read chasing history, add and update invoices, and list credit notes.

Chasing control

Pause and resume chasing for one invoice or a whole customer, list schedules and put customers on a schedule.

Customers, notes and tasks

Create and update customers and contact persons, add notes, and create and update follow-up tasks.

“Put these three customers on our strict schedule.”
It lists your chasing schedules and assigns the customers. Reminders are then sent on that schedule.
“Note that Acme promised to pay on Friday, and remind me to follow up.”
It adds a note to the customer and creates a follow-up task with a due date.
“Invoice 1043 was part-paid with 5,000. Update it.”
It updates the invoice's amount paid and amount due.

53 tools for Chaser

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

assign_scheduleChanges dataPut customers on a chasing schedule: `schedule_id` and `customer_ids`, optionally also updating their invoices. Reminders will then be sent on that schedule.
create_contact_personChanges dataAdd a contact person to a customer: `customer_id`, `external_id` and optional name, email and phones.
create_credit_noteChanges dataCreate a new credit note. Required: credit note id, credit note number, remaining credit, date, status or total. API summary: Create credit note.
create_customerChanges dataCreate a customer with `external_id` and `company_name`, plus optional main contact name, email, phones, addresses and groups.
create_customer_noteChanges dataAdd a note to a customer: `customer_id` and `message`, with optional type and reminder_date.
create_invoiceChanges dataAdd an invoice to Chaser: invoice_id, invoice_number, customer_external_id, date, due_date, currency_code, total, amount_due and status. Chaser may start chasing it on the customer's schedule.
create_overpaymentChanges dataCreate a new overpayment. Required: overpayment id, remaining credit, date, status, total or currency code. API summary: Create overpayment.
create_pause_2Changes dataCreate a new pause. API summary: Pause organisation chasing.
create_resume_2Changes dataCreate a new resume. API summary: Resume organisation chasing.
create_scheduleChanges dataCreate a new schedule. Required: name. API summary: Create schedule.
create_taskChanges dataCreate a task with `type` (e.g. followup, callreminder) and `category` (customer, invoice, schedule, settings or custom), plus optional assignee email, due_date and status.
create_templateChanges dataCreate a new template. Required: name. API summary: Create template.
delete_customer_contactDeletesPermanently delete a contact by contact id. Destructive action; may require approval. API summary: Delete contact person.
delete_customer_messageDeletesPermanently delete a message by message id. Destructive action; may require approval. API summary: Delete customer note.
delete_templateDeletesPermanently delete a template by template id. Destructive action; may require approval. API summary: Delete template.
get_credit_noteGet one credit note by credit note id. API summary: Get credit note by id.
get_customerGet one customer by `customer_id` (Chaser id, or your external id prefixed with ext).
get_customer_contactGet one contact for a customer by contact id. API summary: Get contact person by id.
get_invoiceGet one invoice by `invoice_id`, with amounts, due date and status.
get_organisationGet the connected Chaser organisation's details.
get_overpaymentGet one overpayment by overpayment id. API summary: Get overpayment by id.
get_scheduleGet one schedule by schedule id. API summary: Get schedule by id.
get_templateGet one template by template id. API summary: Get template by id.
list_companiesList companies. API summary: Get organisations.
list_contact_personsList the contact persons for a customer by `customer_id`.
list_credit_notesList credit notes, filtered by status, date, amounts, number or customer_external_id.
list_customer_notesList the notes on a customer by `customer_id`.
list_customersList customers, filtered by company_name, status, external_id or contact name/email; page and limit for paging.
list_historiesList histories. Optional filters: invoice id, invoice number or contact id. Results are paginated. API summary: Get invoice history.
list_invoice_historyList the chasing history (reminders sent and other events) for one invoice by `invoice_id`.
list_invoicesList invoices, filtered by status, dates, due_date, amounts, invoice_number or customer_external_id (operators like gt, lt, eq); page and limit for paging.
list_overpaymentsList overpayments. Optional filters: overpayment id, remaining credit, total, currency code, customer external id or date. Results are paginated. API summary: Get overpayments.
list_schedulesList chasing schedules (the reminder sequences customers can be on).
list_tasksList tasks, filtered by type, status, category, source or due_date.
list_templatesList templates. API summary: Get templates.
pause_customer_chasingChanges dataPause chasing reminders for all of a customer's invoices by `customer_id`.
pause_invoice_chasingChanges dataPause chasing reminders for one invoice by `invoice_id`.
resume_customer_chasingChanges dataResume chasing reminders for a customer by `customer_id`.
resume_invoice_chasingChanges dataResume chasing reminders for one invoice by `invoice_id`.
submit_companyVisible to othersSync a company. Has effects visible outside this system. API summary: Sync organisation.
update_contact_personChanges dataUpdate a customer's contact person by `customer_id` and `contact_id`.
update_credit_noteChanges dataUpdate an existing credit note identified by credit note id. API summary: Update credit note.
update_credit_notesVisible to othersUpdate an existing credit note. Has effects visible outside this system. API summary: Bulk Upsert credit notes.
update_customerChanges dataUpdate a customer by `customer_id`, e.g. company name, contact details, status (ACTIVE or ARCHIVED) or groups.
update_customer_contactsVisible to othersUpdate an existing contact identified by customer id. Has effects visible outside this system. API summary: Bulk Upsert contact persons.
update_customer_messageChanges dataUpdate an existing message identified by message id. Only the fields you pass are changed. API summary: Update customer note.
update_customersVisible to othersUpdate an existing customer. Has effects visible outside this system. API summary: Bulk Upsert customers.
update_invoiceChanges dataUpdate an invoice by `invoice_id`, e.g. amount_paid, amount_due, status, due_date or expected payment date.
update_invoicesVisible to othersUpdate an existing invoice. Has effects visible outside this system. API summary: Bulk Upsert invoices.
update_overpaymentChanges dataUpdate an existing overpayment identified by overpayment id. API summary: Update overpayment.
update_overpaymentsVisible to othersUpdate an existing overpayment. Has effects visible outside this system. API summary: Bulk Upsert overpayments.
update_taskChanges dataUpdate a task by `task_id`: status, assignee, due_date or metadata.
update_templateChanges dataUpdate an existing template identified by template id. API summary: Update template.

Set up in three steps

1
Pick the app
Create a free HeyMyApps account and choose Chaser from the app list.
2
Paste your key
Paste your Chaser API key and API secret. In Chaser, open Organisation settings > Integrations > Get API keys and copy both values.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in Chaser?

The AI can read your organisation, customers, contact persons, notes, invoices, invoice chasing history, credit notes, schedules and tasks. It can create and update customers, contact persons, invoices and tasks, add notes, pause and resume chasing, and put customers on a chasing schedule.

Does the AI see my Chaser credentials?

No. Your Chaser API key and API secret are encrypted at rest and never shown to the AI. After you save them, they are not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start read-only. Actions that lead to reminders being sent, like putting customers on a schedule or adding invoices, can require your approval before they run. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT, open Settings › Apps & Connectors › Advanced, turn on Developer mode and add your HeyMyApps link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

HeyMyApps has a free plan with no credit card required. Paid plans bill per completed task. You also need your own Chaser account.

Can the AI stop reminders for a customer?

Yes. It can pause chasing for a single invoice or for all of a customer's invoices, and resume it again later. It can also read an invoice's chasing history, so you can see what has already been sent before you decide.