#VanceTel API
VanceTel is a programmable phone system: a real softphone app with a production REST API, webhooks, deep links and an MCP server behind it. Use the API to send SMS and MMS, place click-to-call deep links, sync contacts, and react to inbound messages and call events — everything your team sees in the softphone is also reachable from your own software.
The public API is write- and event-oriented: you create and send (messages, contacts, deep links) and you subscribe to webhooks for inbound activity. The softphone app surfaces the full conversation and call history in real time.
#Base URL
All API requests go to a single versioned base URL over HTTPS:
https://api.netexem.com/v1#What you can build
- Programmable SMS & MMS — two-way messaging from dedicated business numbers, with delivery receipts and automatic opt-out handling. See Send an SMS.
- Click-to-call & deep links — launch a call or a pre-addressed text from any button or record. See Deep links.
- Contacts — create and sync contacts on the fly; resolve caller ID. See Contacts.
- Webhooks — subscribe to inbound messages, delivery receipts and call events, each HMAC-signed. See Webhooks.
- MCP server — let agents and Claude Code act on the phone system in the loop. See MCP server.
#Next steps
- Quickstart — send your first text in a few minutes.
- Authentication — get and use an API key.
- API reference — every endpoint, with a built-in console to try it live.