API integration

Build custom integrations with the Leadtime API.

Automate Leadtime with Zapier

Use the Leadtime API to build fully custom integrations, embedded workflows, and internal tools—designed exactly around your product, data, and processes.

Full programmatic access

Real-time control & automation

Built for scale

What teams build with the Leadtime API

For teams that need full control and custom integrations.

For teams that need full control and custom integrations.

Internal dashboard built with Leadtime API

Custom internal tools

Build internal dashboards, admin panels, or operational tools on top of Leadtime data.

System-to-system data sync via Leadtime REST API

System-to-system sync

Sync projects, tickets, time tracking, or billing data with internal systems, ERPs, or data warehouses.

Embedded workflows

Embed Leadtime functionality directly into your own product or client portals.

Embedded Leadtime workflows in client portal

Advanced automation

Create complex automation logic that goes beyond no-code or low-code platforms.

Painting of a desktop automation

Use the Leadtime API to build exactly what your product and processes require.

Built for teams that need full control over data, logic, and authentication.

Built for teams that need full control over data, logic, and authentication.

When the API is the right choice

Use the Leadtime API if you want to:

Build deeply custom workflows

Integrate Leadtime into your own product

Control authentication, data flow, and logic

Scale integrations reliably

Working together
Woman thinking

How it works

The Leadtime API provides programmatic access to all core resources, allowing you to create, update, query, and automate workflows securely.

Generate an API key in Leadtime

Authenticate requests securely

Interact with Leadtime resources

Build workflows, services, or integrations

Designed to fit into modern backend, frontend, and automation architectures.

What the API supports

Access to all core Leadtime entities

Create, update, delete, and search operations

Secure authentication

Predictable, scalable performance

The API is the foundation for all Leadtime integrations.

Person with headphione typing away on his desktop
Sitting together on a desk

Built for engineering and product teams

SaaS companies

Agencies building custom workflows

Teams with internal platforms

Products embedding Leadtime

Abstract backgroind

Build exactly what you need with Leadtime

Use the Leadtime API to design integrations that match your product and processes—without compromise.

The high-speed project delivery platform

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GDPR compliance seal

We comply with the EU GDPR and guarantee European server locations with ISO 27001 certification.

The high-speed project delivery platform

We comply with the EU GDPR and guarantee European server locations with ISO 27001 certification.

© 2025 Leadtime Labs GmbH. All rights reserved.

The high-speed project delivery platform

We comply with the EU GDPR and guarantee European server locations with ISO 27001 certification.

© 2025 Leadtime Labs GmbH. All rights reserved.