The Time Trakkr REST API

Time Trakkr has a public REST API, so your own systems can read and write time, projects, clients, invoices and reports with a token.

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What it does

Every endpoint, documentedAn OpenAPI document at /api/v1/openapi.json imports straight into tools like Postman.
Two kinds of tokenA personal access token acts as you, with your role. An organization key acts org-wide with no person attached.
Safe retriesSend an Idempotency-Key with a POST and a retry within 24 hours replays the original response instead of duplicating it.
Find or create in one callLook up clients and projects by exact name, or send find_existing and get the existing record back.

How to set it up

  1. Create a personal access token or an organization key on the Developer page.
  2. Send it on every request as Authorization: Bearer <token>.
  3. Read the reference at timetrakkr.com/developers, or import /api/v1/openapi.json into your API client.

What it won’t do

  • Give a member’s token money. Endpoints marked manager+ or admin refuse lower-grade personal tokens.
  • Accept more than 100 requests per 15 seconds per token. Over that it answers 429 with Retry-After.
  • Delete a client or project for good. DELETE archives it; deleting permanently is done in the app.
  • Silently ignore a misspelled field on the budget endpoints. Unknown fields are refused with 400.

Questions about REST API

Will an integration written for Harvest work?

With little change for budgets: the project budget fields use the same names as Harvest’s v2 API.

How does logging time work with an organization key?

Writes that need a person, such as logging time, take an explicit user_id. A personal access token logs time as its owner.

Can I use the API from Zapier?

A Zap can call it with a token like any other client. The API supports the find-or-create pattern a Zap needs, and a 409 on a duplicate contact returns the contact that already exists.

WebhooksSigned POSTs to your own endpoint when time is logged or an invoice is sent or paid.MCP serverPoint an MCP client such as Claude Code or Cursor straight at your workspace.JiraLink entries to issues, map Jira projects to yours, and push hours back as worklogs.
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Connect REST API to your own workspace

Free for unlimited people. One paid plan, $10 per member per month, when you want HR, scheduling, timesheet approvals, scheduled backups, email from your own domain and scheduled reports.

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