Projects (GET /projects, documented page size 250) with client, category, dates, charge budget, manager, cost centre and purchase order. Filters sent as documented: id (a project code), clientCode, categoryCode, lastModified. The pay budget, billing contact and address only with include_contact_details.

Clients (GET /clients) with code, name, category, cost centre, currency, payment terms, invoicing settings and notes. Filters sent as documented: id (a client code), costCentreCode, clientCategoryCode, ModifiedSince. Addresses, billing name and email, tax and company numbers only with include_contact_details (which also sends include=address,billing).

Users (GET /users): code, name, job title, role, employment type, group, home cost centre and line manager. Filters sent as documented: id (a single user), groupCode, ModifiedSince. Join and leave dates, the accounting code (which the spec says usually holds the payroll number), email, mobile, date of birth, gender, address and a limited-company contractor's company details only with include_contact_details. Bank details, national insurance and tax numbers, the payroll details in employmentDetails and HR personal details are never returned (includedFields is never sent).

Cost centres (GET /costcentres): code and description (contact details typed into a description are redacted). Filter sent as documented: Code.

Time recorded on timesheets for a date range (POST /reports/timesheets, the documented "time and cost report"; a POST that changes nothing), summed per task and employee for each period of time_grouping. Columns are the documented example's: Date, Status, CompanyName, CompanyReference, ChargeCodeGroup, ChargeCodeGroupReference, ChargeCode, ChargeCodeDesc, EmployeeReference, EmployeeName, ApproverName, EntryQuantity, RateCode, RateName, Units, ChargeRate, TotalCharge, TimesheetUpdateSequence; PayRate, TotalPay only with include_contact_details. Filters sent as documented: timesheetStatusFilters, clientFilter, costCentreFilter, employeeGroupFilter, employeeFilter, chargeCodeGroupFilter, taskCodeFilter, approvedDateFilterStart/End, modifiedAfterDate. Each call counts against the documented limit of 24 report requests and 500 records read per hour: keep ranges narrow. One page per call (pageIndex); the page size is not documented. Every value is redacted like free text, and a row whose length does not match the requested columns is refused rather than mislabelled.

Invoices dated in a range (POST /invoices, 'Get invoices'; a POST that changes nothing): number, status, dates, client, project, task, worker, currency, net, tax and total, and optionally the line items. invoice_type picks client invoices (default), client credit notes, self-billing invoices or self-billing credit notes (sent as invoiceReportType, whose spec description reads 'Deprecated - (only used by /invoices/ POST endpoint)'). Other filters sent as documented: invoiceStatusFilters (empty returns every status, Draft included), clientCode, costCentreCode, chargeCodeGroupCodes, exportedFilter, modifiedAfter. Self-billing invoices are contractor pay: their amounts only with include_contact_details (any invoice returned for a self-billing type is treated as self-billing, whatever its invoiceSelfBilling flag says). Probably counts against the report limits (24 per hour); the endpoint documents no paging, so at most max_results invoices are shown.

Annual leave summary for every employee for one leave year (GET /leavebookings/summary): allowance, carried over, approved booked leave, non-deductible leave, manual adjustments and end-of-year balance, in the units the account records (hours or days). leave_year is any date in the wanted leave year (the API uses the leave year that date falls in); today when omitted.

Leave bookings (holidays and other absences) in a date range (POST /leavebookings/reports/bookings, "Get leave bookings report"; a POST that changes nothing). Columns: EmployeeReference, EmployeeName, LeaveCategory, LeaveStatus, LeaveStartDate, LeaveEndDate, LeaveTotalWorkingDays, LeaveUnits, LeaveRequestDate, LeaveReviewedDate; LeaveComments only with include_contact_details. Filters sent as documented: statusFilters (omitted for every status), employeeFilter, employeeGroupFilter, modifiedAfterDate. The endpoint documents no paging; whether it counts against the report limits is not documented.