Get started in three steps
Calling the REST API needs a Timix organization on a Professional plan or higher. The MCP server, and the API keys you connect it with, are on every plan, Free included.
Generate an API key
In the Timix web app, open Account → API Keys, click Generate key, name it,
and copy the tmx_… value. It's shown once — store it securely (we keep only a hash).
Keys issued before July 2026 start with bbl_ and remain valid.
Make your first request
Send the key as an X-Api-Key header to any endpoint under
{{API_BASE}}. No organization id needed — it's bound to the key.
Explore & build
Browse every endpoint in the interactive reference, run calls right from the page, then automate with webhooks, the MCP server, or a no-code connector.
Quick start
List your customers — the top of the work hierarchy (Customer → Project → Task → SubTask → Time).
curl -s \
-H "X-Api-Key: tmx_your_key_here" \
"{{API_BASE}}/customers?page=1&pageSize=20"Verify a key and see the organization, plan and permissions it's bound to:
curl -s \
-H "X-Api-Key: tmx_your_key_here" \
"{{API_BASE}}/me"GET requests are safe to explore with, but
POST / PUT / DELETE create, change, or delete real records.
Use a test organization, or stick to reads, while you're learning the API. The reference's
“Try it” panel sends requests with your key against your data.
The essentials
Authentication
One API key, sent as X-Api-Key: tmx_… (or Authorization: Bearer).
Keys carry their owner's role and are bound to one organization.
Pagination
?page=1&pageSize=50 (max 200) → { items, totalCount, page, pageSize, hasMore },
plus an X-Total-Count header.
Rate limits
Per key, per minute: 120 (Free–Starter), 300 (Professional), 1000 (Business).
Over the limit returns 429 with Retry-After.
Errors
Consistent envelope: { "error": { "code", "message" } } with real HTTP status
codes (404, 422, 403, 429…).
Ways to build
REST API reference
Every endpoint with parameters, schemas, and live “Try it”. Customers, projects, tasks, subtasks, time, invoices, financial reports and more.
Open reference →Webhooks
Get a signed POST when an invoice is issued or a timesheet is approved — no polling. HMAC-SHA256 verification, retries, idempotency.
Set up webhooks →MCP server
Connect Claude, ChatGPT, or Cursor and operate Timix from your own AI — “log 3 hours on Acme”, “how much unbilled time?”. On every plan, Free included; role-scoped.
Connect your AI →No-code connectors
Prebuilt Zapier, Make, and Workato apps — trigger on new records and create customers, projects, tasks and subtasks without writing code.
Browse connectors →