Source Code

Harvest API

Description

Integration with Harvest time tracking software (API v2).

Setup

Environment Variables

HARVEST_ACCESS_TOKEN - Get from https://id.getharvest.com/developers
HARVEST_ACCOUNT_ID - Your Harvest account ID

Authentication

All requests require these headers:

Authorization: Bearer $HARVEST_ACCESS_TOKEN
Harvest-Account-Id: $HARVEST_ACCOUNT_ID
User-Agent: YourApp ([email protected])

API Reference

Base URL: https://api.harvestapp.com/v2

Time Entries

List Time Entries

curl "https://api.harvestapp.com/v2/time_entries" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: user_id, client_id, project_id, task_id, external_reference_id, is_billed, is_running, updated_since, from, to, page, per_page

Create Time Entry (duration)

curl "https://api.harvestapp.com/v2/time_entries" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"project_id":12345,"task_id":67890,"spent_date":"2024-01-15","hours":2.5}'

Create Time Entry (start/end time)

curl "https://api.harvestapp.com/v2/time_entries" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"project_id":12345,"task_id":67890,"spent_date":"2024-01-15","started_time":"9:00am","ended_time":"11:30am"}'

Get Time Entry

curl "https://api.harvestapp.com/v2/time_entries/{TIME_ENTRY_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Update Time Entry

curl "https://api.harvestapp.com/v2/time_entries/{TIME_ENTRY_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"hours":3.0,"notes":"Updated notes"}'

Delete Time Entry

curl "https://api.harvestapp.com/v2/time_entries/{TIME_ENTRY_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Restart a Stopped Timer

curl "https://api.harvestapp.com/v2/time_entries/{TIME_ENTRY_ID}/restart" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X PATCH

Stop a Running Timer

curl "https://api.harvestapp.com/v2/time_entries/{TIME_ENTRY_ID}/stop" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X PATCH

Projects

List Projects

curl "https://api.harvestapp.com/v2/projects" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: is_active, client_id, updated_since, page, per_page

Get Project

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Project

curl "https://api.harvestapp.com/v2/projects" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"client_id":12345,"name":"New Project","is_billable":true,"bill_by":"Project","budget_by":"project"}'

Update Project

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"name":"Updated Project Name"}'

Delete Project

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Project User Assignments

List User Assignments for Project

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}/user_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create User Assignment

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}/user_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"user_id":12345}'

Project Task Assignments

List Task Assignments for Project

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}/task_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Task Assignment

curl "https://api.harvestapp.com/v2/projects/{PROJECT_ID}/task_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"task_id":12345}'

Tasks

List Tasks

curl "https://api.harvestapp.com/v2/tasks" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: is_active, updated_since, page, per_page

Get Task

curl "https://api.harvestapp.com/v2/tasks/{TASK_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Task

curl "https://api.harvestapp.com/v2/tasks" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"name":"New Task","default_hourly_rate":100.0}'

Update Task

curl "https://api.harvestapp.com/v2/tasks/{TASK_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"name":"Updated Task Name"}'

Delete Task

curl "https://api.harvestapp.com/v2/tasks/{TASK_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Clients

List Clients

curl "https://api.harvestapp.com/v2/clients" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: is_active, updated_since, page, per_page

Get Client

curl "https://api.harvestapp.com/v2/clients/{CLIENT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Client

curl "https://api.harvestapp.com/v2/clients" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"name":"New Client","currency":"USD"}'

Update Client

curl "https://api.harvestapp.com/v2/clients/{CLIENT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"name":"Updated Client Name"}'

Delete Client

curl "https://api.harvestapp.com/v2/clients/{CLIENT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Contacts

List Contacts

curl "https://api.harvestapp.com/v2/contacts" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: client_id, updated_since, page, per_page

Get Contact

curl "https://api.harvestapp.com/v2/contacts/{CONTACT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Contact

curl "https://api.harvestapp.com/v2/contacts" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"client_id":12345,"first_name":"John","last_name":"Doe","email":"[email protected]"}'

Update Contact

curl "https://api.harvestapp.com/v2/contacts/{CONTACT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"email":"[email protected]"}'

Delete Contact

curl "https://api.harvestapp.com/v2/contacts/{CONTACT_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Users

List Users

curl "https://api.harvestapp.com/v2/users" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: is_active, updated_since, page, per_page

Get Current User

curl "https://api.harvestapp.com/v2/users/me" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Get User

curl "https://api.harvestapp.com/v2/users/{USER_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create User

curl "https://api.harvestapp.com/v2/users" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"first_name":"Jane","last_name":"Doe","email":"[email protected]"}'

Update User

curl "https://api.harvestapp.com/v2/users/{USER_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"first_name":"Janet"}'

Delete User

curl "https://api.harvestapp.com/v2/users/{USER_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

User Project Assignments

List Project Assignments for Current User

curl "https://api.harvestapp.com/v2/users/me/project_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

List Project Assignments for User

curl "https://api.harvestapp.com/v2/users/{USER_ID}/project_assignments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Billable Rates

List Billable Rates for User

curl "https://api.harvestapp.com/v2/users/{USER_ID}/billable_rates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Billable Rate

curl "https://api.harvestapp.com/v2/users/{USER_ID}/billable_rates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"amount":150.0,"start_date":"2024-01-01"}'

Cost Rates

List Cost Rates for User

curl "https://api.harvestapp.com/v2/users/{USER_ID}/cost_rates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Cost Rate

curl "https://api.harvestapp.com/v2/users/{USER_ID}/cost_rates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"amount":75.0,"start_date":"2024-01-01"}'

Invoices

List Invoices

curl "https://api.harvestapp.com/v2/invoices" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: client_id, project_id, updated_since, from, to, state, page, per_page

Get Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Invoice

curl "https://api.harvestapp.com/v2/invoices" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"client_id":12345,"subject":"Invoice for January","due_date":"2024-02-15","line_items":[{"kind":"Service","description":"Consulting","unit_price":150,"quantity":10}]}'

Update Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"subject":"Updated Invoice Subject"}'

Delete Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Invoice Line Items

Create Invoice Line Item

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}/line_items" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"line_items":[{"kind":"Service","description":"Additional work","unit_price":100,"quantity":5}]}'

Invoice Payments

List Payments for Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}/payments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Payment

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}/payments" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"amount":500.0,"paid_at":"2024-01-20T00:00:00Z"}'

Invoice Messages

List Messages for Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}/messages" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Send Invoice

curl "https://api.harvestapp.com/v2/invoices/{INVOICE_ID}/messages" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"recipients":[{"email":"[email protected]"}],"subject":"Invoice #123","body":"Please find attached invoice."}'

Invoice Item Categories

List Invoice Item Categories

curl "https://api.harvestapp.com/v2/invoice_item_categories" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Estimates

List Estimates

curl "https://api.harvestapp.com/v2/estimates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: client_id, updated_since, from, to, state, page, per_page

Get Estimate

curl "https://api.harvestapp.com/v2/estimates/{ESTIMATE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Estimate

curl "https://api.harvestapp.com/v2/estimates" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"client_id":12345,"subject":"Project Estimate","line_items":[{"kind":"Service","description":"Development","unit_price":150,"quantity":40}]}'

Expenses

List Expenses

curl "https://api.harvestapp.com/v2/expenses" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: user_id, client_id, project_id, is_billed, updated_since, from, to, page, per_page

Get Expense

curl "https://api.harvestapp.com/v2/expenses/{EXPENSE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Expense

curl "https://api.harvestapp.com/v2/expenses" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"project_id":12345,"expense_category_id":67890,"spent_date":"2024-01-15","total_cost":50.00,"notes":"Office supplies"}'

Update Expense

curl "https://api.harvestapp.com/v2/expenses/{EXPENSE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"notes":"Updated expense notes"}'

Delete Expense

curl "https://api.harvestapp.com/v2/expenses/{EXPENSE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -X DELETE

Expense Categories

List Expense Categories

curl "https://api.harvestapp.com/v2/expense_categories" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Query parameters: is_active, updated_since, page, per_page

Get Expense Category

curl "https://api.harvestapp.com/v2/expense_categories/{EXPENSE_CATEGORY_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Expense Category

curl "https://api.harvestapp.com/v2/expense_categories" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"name":"Travel"}'

Reports

Time Reports - Clients

curl "https://api.harvestapp.com/v2/reports/time/clients" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Time Reports - Projects

curl "https://api.harvestapp.com/v2/reports/time/projects" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Time Reports - Tasks

curl "https://api.harvestapp.com/v2/reports/time/tasks" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Time Reports - Team

curl "https://api.harvestapp.com/v2/reports/time/team" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Uninvoiced Report

curl "https://api.harvestapp.com/v2/reports/uninvoiced" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Expense Reports - Clients

curl "https://api.harvestapp.com/v2/reports/expenses/clients" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Expense Reports - Projects

curl "https://api.harvestapp.com/v2/reports/expenses/projects" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Expense Reports - Categories

curl "https://api.harvestapp.com/v2/reports/expenses/categories" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Expense Reports - Team

curl "https://api.harvestapp.com/v2/reports/expenses/team" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -G \
  -d "from=2024-01-01" \
  -d "to=2024-01-31"

Project Budget Report

curl "https://api.harvestapp.com/v2/reports/project_budget" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Company

Get Company

curl "https://api.harvestapp.com/v2/company" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Update Company

curl "https://api.harvestapp.com/v2/company" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"wants_timestamp_timers":true}'

Roles

List Roles

curl "https://api.harvestapp.com/v2/roles" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Get Role

curl "https://api.harvestapp.com/v2/roles/{ROLE_ID}" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])"

Create Role

curl "https://api.harvestapp.com/v2/roles" \
  -H "Authorization: Bearer $HARVEST_ACCESS_TOKEN" \
  -H "Harvest-Account-Id: $HARVEST_ACCOUNT_ID" \
  -H "User-Agent: MyApp ([email protected])" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"name":"Developer","user_ids":[12345,67890]}'

Pagination

All list endpoints support pagination with page and per_page parameters. Responses include:

page: Current page number
total_pages: Total number of pages
total_entries: Total number of records
next_page: Next page number (null if last page)
previous_page: Previous page number (null if first page)

Rate Limiting

Harvest API has a rate limit of 100 requests per 15 seconds. Response headers include:

X-Rate-Limit-Limit: Request limit
X-Rate-Limit-Remaining: Remaining requests
X-Rate-Limit-Reset: Seconds until limit resets

Changelog

v1.0.0

Initial release with full API v2 coverage
Time entries, projects, tasks, clients, contacts
Users, billable rates, cost rates
Invoices, estimates, payments, messages
Expenses and expense categories
Reports (time, expense, project budget)
Company and roles management

harvest-time-reporting-api

Harvest API

Description

Setup

Environment Variables

Authentication

API Reference

Time Entries

List Time Entries

Create Time Entry (duration)

Create Time Entry (start/end time)

Get Time Entry

Update Time Entry

Delete Time Entry

Restart a Stopped Timer

Stop a Running Timer

Projects

List Projects

Get Project

Create Project

Update Project

Delete Project

Project User Assignments

List User Assignments for Project

Create User Assignment

Project Task Assignments

List Task Assignments for Project

Create Task Assignment

Tasks

List Tasks

Get Task

Create Task

Update Task

Delete Task

Clients

List Clients

Get Client

Create Client

Update Client

Delete Client

Contacts

List Contacts

Get Contact

Create Contact

Update Contact

Delete Contact

Users

List Users

Get Current User

Get User

Create User

Update User

Delete User

User Project Assignments

List Project Assignments for Current User

List Project Assignments for User

Billable Rates

List Billable Rates for User

Create Billable Rate

Cost Rates

List Cost Rates for User

Create Cost Rate

Invoices

List Invoices

Get Invoice

Create Invoice

Update Invoice

Delete Invoice

Invoice Line Items

Create Invoice Line Item

Invoice Payments

List Payments for Invoice

Create Payment

Invoice Messages

List Messages for Invoice

Send Invoice

Invoice Item Categories

List Invoice Item Categories

Estimates

List Estimates