Service — HubSpot API Integration

HubSpot API Integration with external platforms

I build bidirectional integrations between HubSpot and external systems like Sage Intacct, ClickUp, Stripe, and more. No generic connectors — each integration is custom code built around your exact business logic.

What this covers technically

I work directly with the HubSpot API — not middleware layers that add latency and extra failure points.

HubSpot REST API v3 – contacts, deals, companies, custom objects
Serverless functions for secure, credential-safe backend logic
Webhooks: inbound and outbound event triggers
OAuth 2.0 app setup and token refresh handling
Custom object schema design and association rules
Batch API operations for high-volume data sync

Direct API integrations

Direct REST connections between HubSpot and the target platform. No unnecessary intermediaries.

Real-time webhooks

HubSpot events (stage change, property updated) trigger logic in external systems instantly.

Serverless functions

Secure backend logic hosted within HubSpot without exposing credentials on the frontend.

Integrations I have built

Real projects, not demos. Each one solves a specific business problem.

Sage Intacct

Bidirectional sync of 50,000+ product records from Sage Intacct into HubSpot via serverless functions. Real-time search on the HubSpot frontend without exposing credentials.

Sage Intacct APIHubSpot ServerlessNode.js

View case study

ClickUp

Deal pipeline changes in HubSpot trigger ClickUp space and task creation. Intelligent company verification prevents duplicate spaces.

HubSpot WorkflowsClickUp APICustom Code Actions

View case study

Stripe

Quote generation tool connected to Stripe: creates payment links, syncs payment data back to HubSpot deals, and automates 30-day recurring charges.

Stripe APIHubSpot CRMEmail Automation

View case study

Rentvine via Make

Webhooks from Rentvine automatically create and update vendors and work orders as custom objects in HubSpot. Includes activity export for full audit trails.

Make (Integromat)RentvineHubSpot Custom Objects

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Have a system that needs to connect to HubSpot?

Tell me what platforms you use and what data needs to flow between them.