ProWorkflow API
Build powerful integrations with ProWorkflow's Nexus project management platform.
The ProWorkflow API gives you programmatic access to the same data and actions that drive the product UI: companies, contacts, projects, items, time, invoices, quotes, and more.
Guides
Conceptual documentation: authentication, pagination, errors, permissions, search and more.
API Reference
A complete reference for every endpoint, parameter and response shape — generated from the OpenAPI spec.
v3 → v4 Migration
Mapping and notes for moving from the v3 API to v4.
MCP Server
Connect AI assistants to ProWorkflow over the Model Context Protocol.
Examples
Scripts, apps, and tools that show how to build on the ProWorkflow API — dashboards, webhooks, CSV importers, data export, and more.
Quick start
The API lives at:
https://api.proworkflow.com/api/v4
Authenticate every request with either an API key or a bearer JWT — see the Authentication guide for details.
curl 'https://api.proworkflow.com/api/v4/companies?fields=name,code&pagesize=10' \
-H 'apikey: your-api-key'