Everything you need to integrate PerfexCRM with your applications
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curl -X GET https://your-crm.com/api/v1/customers \
-H "X-API-KEY: pk_your_api_key_here" \
-H "Content-Type: application/json"curl -X POST https://your-crm.com/api/v1/tickets \
-H "X-API-KEY: pk_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"subject": "API Test",
"message": "Test ticket from API",
"department": 1,
"priority": 2
}'curl -X POST https://your-crm.com/api/v1/invoices \
-H "X-API-KEY: pk_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"clientid": 1,
"date": "2026-11-01",
"duedate": "2026-11-30",
"currency": 1
}'curl -X POST https://your-crm.com/api/v1/knowledge-base \
-H "X-API-KEY: pk_your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"subject": "How to reset your password",
"description": "<p>Open <strong>Settings</strong> and click Reset.</p>",
"articlegroup": 1,
"active": 1
}'Everything you need to integrate and test the API
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GET/POST/PUT/DELETE /api/v1/knowledge-base and /knowledge-base/groups), filtering by group, and a dedicated knowledge_base permission scope?include=custom_fields and a flat custom_fields map on create/update