JustCall is a cloud-based phone system and contact center platform that provides voice calling, SMS/MMS messaging, IVR, call analytics, and contact management for small and mid-sized businesses. The platform integrates with CRMs, helpdesks, and automation tools. JustCall exposes REST APIs and webhooks for programmatically managing calls, SMS, contacts, phone numbers, and call dispositions, authenticated via API key plus API secret in headers.
APIs.json: https://raw.githubusercontent.com/api-evangelist/justcall/refs/heads/main/apis.yml
- Type: Index
- Voice
- SMS
- Cloud Phone
- Contact Center
- Telephony
- Communications
- Created: 2026-05-11
- Modified: 2026-05-11
REST API for placing calls, sending SMS and MMS messages, managing contacts, phone numbers, users, and call dispositions in JustCall. Authentication uses an API key and API secret passed in the Authorization header. Webhooks notify on completed calls and SMS events.
- Human URL: https://developer.justcall.io/docs/overview
- Base URL:
https://api.justcall.io/v2.1
- Voice
- SMS
- Telephony
- Contact Center
- Webhooks
- Documentation
- API Reference
- Send S M S Endpoint
- Webhooks
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
FN: Kin Lane Email: kin@apievangelist.com