How do I install the Harvest Time Reporting API skill?

Run npx skillmds@latest add kernel8901/harvest-time-reporting-api in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Harvest Time Reporting API skill do?

Harvest API It is listed under Integrations & APIs on SkillMD.

Is Harvest Time Reporting API safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Harvest Time Reporting API?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Harvest Time Reporting API free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Harvest Time Reporting API?

kernel8901 (@kernel8901) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Harvest Time Reporting API by kernel8901

Name: Harvest Time Reporting API
Author: kernel8901

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 (your@email.com)

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"client_id":12345,"first_name":"John","last_name":"Doe","email":"john@example.com"}'

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 (me@example.com)" \
  -H "Content-Type: application/json" \
  -X PATCH \
  -d '{"email":"newemail@example.com"}'

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"first_name":"Jane","last_name":"Doe","email":"jane@example.com"}'

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)" \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{"recipients":[{"email":"client@example.com"}],"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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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 (me@example.com)"

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 (me@example.com)"

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 (me@example.com)" \
  -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

File contents

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