HelloGrowthCRM Developer Resources & API Overview
Integration guides, API examples, webhooks, and support resources for technical teams using HelloGrowthCRM.
Quick Start
API Categories
Contacts API
Create, read, update, and delete contacts and companies
Endpoints: 12+ endpoints
Deals API
Manage pipeline, stages, values, and forecasting
Endpoints: 10+ endpoints
Tasks API
Create and track tasks, reminders, and follow-ups
Endpoints: 8+ endpoints
WhatsApp API
Send and receive WhatsApp messages directly from CRM
Endpoints: 5+ endpoints
Webhooks
Real-time event notifications for system integrations
Events: 20+ event types
Authentication
API key and Bearer token management
Methods: Bearer, OAuth 2.0
API Overview
The HelloGrowthCRM REST API lets you read and write leads, contacts, deals, tasks, and activities from your own apps, scripts, or integrations. All requests use JSON and require a Bearer token. Endpoint details are available in your account workspace and support materials. Rate limits apply per plan and increase for higher tiers.
Popular Topics
Authentication
API key generation and Bearer token setup
Contacts API
Create and manage leads and contacts
Deals API
Pipeline stages, forecasting, and updates
Webhooks
Real-time events and verification
Zapier Integration
Connect 6,000+ apps without code
CSV Import
Bulk data loading and field mapping
Mobile API
Mobile app endpoints and sync
Rate Limits
Plan limits and best practices
Getting Started (3 Steps)
1
Get Your API Key
Go to Settings → API Keys in your HelloGrowthCRM dashboard. Click "Generate New Key" and give it a name (e.g., "Production Server"). Copy and store securely.
2
Make Your First API Call
Send a GET request to /v1/contacts with your Bearer token to fetch your contacts.
curl -H "Authorization: Bearer YOUR_API_KEY" \
https://api.hellogrowthcrm.com/v1/contacts3
Handle Webhooks (Optional)
Set up webhooks to receive real-time notifications when leads, deals, or tasks change. Go to Settings → Webhooks, add your endpoint URL, and select the events you want to track.
API Key Security
Use your API key in the Authorization: Bearer YOUR_API_KEY header for every request. For server-to-server or script use, keep the key secret and never expose it in client-side code. Regenerate keys periodically and rotate immediately if compromised.
Endpoint categories
Core resources include: Leads (create, list, update, delete), Deals (pipeline stages, value, close date), Contacts (people and companies), Tasks (activities and follow-ups), and Calls (log and sync). Webhooks notify your app when records change. Below you’ll find the API reference, SDK guides for JavaScript and Python, and webhook setup.
Coming Soon
OpenAPI specification, JavaScript SDK, and Python SDK are coming in Q2 2026. For now, use the REST API directly or contact support for integration assistance.
Developer Resources
Why Developers Use Our API
Developers use the HelloGrowthCRM API to sync leads from marketing automation, build custom reporting, automate data entry, and connect CRM data to internal tools. Our REST API and webhooks make it easy to keep your systems in sync without manual exports. Rate limits scale with your plan; enterprise customers get higher limits and dedicated support for integration design.
Related resources
Need implementation help or evaluation resources? Explore our integrations, security documentation, CRM and RevOps blog, and contact page for technical support, trust details, and rollout guidance.
This docs overview is meant to help technical teams understand how HelloGrowthCRM fits into a larger operating stack. Most teams do not evaluate an API in isolation. They want to know how authentication, sync logic, webhooks, and workflow data will behave when the CRM becomes part of lead routing, reporting, and customer communication processes.
The sections below are organized around common implementation paths. Start with the API reference if you need direct CRUD access, use the SDK guides if you want faster application development, and review webhooks if you need event-driven automation across other systems.
Authentication
All API requests require a Bearer token. Generate API keys from Settings → API Keys in your dashboard.
curl -H "Authorization: Bearer YOUR_API_KEY" \
GET /v1/leadsLeads
Create, read, update, and delete leads programmatically.
POST /v1/leads
{
"name": "Jane Doe",
"email": "jane@acme.com",
"company": "Acme Inc",
"stage": "qualified"
}Deals
Manage your pipeline deals with full CRUD operations.
GET /v1/deals?stage=negotiation&limit=50
Response:
{
"data": [...],
"total": 142,
"page": 1
}Strong integrations usually begin with a clear ownership model. Decide which system is responsible for source-of-truth fields, which events should trigger automation, and how duplicate handling or stage updates will be reconciled before you ship to production.
If your team is still evaluating implementation scope, pair this page with the integrations hub, security resources, and relevant workflow guides so business and engineering teams can review the same rollout plan.