DEVELOPERS · API

Build on top
of lınq.

A clean REST API and webhooks for the data that runs your shop — customers, jobs, estimates, invoices and payments. Sync lınq with your accounting stack, your warehouse, or whatever you build next.

WHAT YOU CAN BUILD

Sync customers & jobs

Read and write the customer record and the full job lifecycle — create work from your own intake, push status back.

Invoices & payments

Pull invoice and payment events into your accounting system. Reconcile payouts without copy-paste.

Real-time webhooks

Subscribe to events — job booked, invoice paid, estimate signed — and react the moment they happen.

AUTHENTICATION

OAuth 2.0 + scoped API keys.

Authenticate with a workspace API key for server-to-server access, or OAuth 2.0 for apps acting on a customer's behalf. Every token is scoped to the resources it needs.

# Fetch the most recent jobs for a workspace
curl https://api.linqsystem.com/v1/jobs \
  -H "Authorization: Bearer $LINQ_API_KEY" \
  -H "Accept: application/json"
GET
/v1/customers

List and search customer records.

POST
/v1/jobs

Create a job from your own booking flow.

GET
/v1/invoices/:id

Retrieve an invoice and its payment status.

POST
/v1/webhooks

Register an endpoint for real-time events.

Want a key?

The API is rolling out to workspaces. Tell us what you're building and we'll get you a developer key and the full endpoint reference.