Build on atonCRM
Our REST API gives you complete access to your CRM data. Build custom integrations, automate workflows, and extend atonCRM to fit your exact needs.
What You Can Do
- Read and write all CRM data - Accounts, contacts, deals, activities
- Automate workflows - Trigger actions based on events
- Sync with other systems - Keep data consistent across your stack
- Build custom applications - Create tailored experiences
- Generate reports - Pull data for custom analytics
RESTful Design
Standard HTTP methods (GET, POST, PUT, DELETE) with JSON responses.
OAuth 2.0 Authentication
Secure authorization for third-party apps. API keys for server-to-server.
Webhooks
Real-time notifications when data changes.
Comprehensive Coverage
Full CRUD for all objects: accounts, contacts, deals, activities, products, quotes.
Quick Start
Get up and running in minutes
1
Get Your API Key
Settings → API → Create New Key2
Make Your First Request
curl -X GET "https://api.atoncrm.com/v1/deals" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json"
3
Response
{
"data": [
{
"id": "deal_abc123",
"name": "Acme Corp - Enterprise License",
"value": 50000,
"stage": "proposal",
"probability": 60,
"expected_close": "2026-02-15"
}
],
"meta": {
"total": 47,
"page": 1,
"per_page": 20
}
}Core Endpoints
Accounts
GET/v1/accounts
GET/v1/accounts/:id
POST/v1/accounts
PUT/v1/accounts/:id
DELETE/v1/accounts/:id
Contacts
GET/v1/contacts
GET/v1/contacts/:id
POST/v1/contacts
PUT/v1/contacts/:id
DELETE/v1/contacts/:id
Deals
GET/v1/deals
GET/v1/deals/:id
POST/v1/deals
PUT/v1/deals/:id
DELETE/v1/deals/:id
PATCH/v1/deals/:id/stage
Activities
GET/v1/activities
POST/v1/activities
PUT/v1/activities/:id
DELETE/v1/activities/:id
Webhooks
Receive real-time notifications when events occur. Perfect for keeping external systems in sync.
Available Events
deal.createdNew deal addeddeal.updatedDeal modifieddeal.stage_changedDeal moved to new stagedeal.wonDeal marked as wondeal.lostDeal marked as lostcontact.createdNew contact addedactivity.createdNew activity loggedemail.openedTracked email openedWebhook Payload
{
"event": "deal.stage_changed",
"timestamp": "2026-01-08T15:30:00Z",
"data": {
"deal_id": "deal_abc123",
"previous_stage": "qualification",
"new_stage": "proposal",
"changed_by": "user_456"
}
}Rate Limits
| Plan | Requests/Minute | Daily Limit |
|---|---|---|
| Professional | 1,000 | 100,000 |
| Enterprise | 10,000 | Unlimited |
SDKs
Official libraries for popular languages
JavaScript/TypeScript
npm install @atoncrm/sdkimport { AtonCRM } from '@atoncrm/sdk';
const client = new AtonCRM('sk_live_abc123');
const deals = await client.deals.list({
stage: 'proposal'
});Python
pip install atoncrmfrom atoncrm import AtonCRM
client = AtonCRM('sk_live_abc123')
deals = client.deals.list(
stage='proposal'
)Frequently Asked Questions
Ready to Build?
Full API access included on Professional and Enterprise plans.