Summary
Phone verification and fraud scoring, callable.
The pieces of a signup flow that normally live inside your backend — send the code, check it, decide whether the number is worth trusting — become calls you can make while building or debugging that flow.
What it is
A TeleSign server covering verification, phone intelligence, fraud scoring and SMS, with TeleSign's own documentation alongside them. Codes go out over SMS, voice, WhatsApp, Viber, RCS or email, with automatic fallback between channels.
What you get
- verifyapi_send_otp sends a passcode over SMS, voice, WhatsApp, Viber, RCS or email, falling back between channels automatically
- verifyapi_check_code verifies the code a user typed; verifyapi_get_status reports on a verification in flight
- phoneid_get_info returns a number's type — mobile, landline or VoIP — with carrier and location
- intelligence_assess_risk returns a fraud risk score from 0 to 1000 with an allow, flag or block recommendation
- messaging_send_sms sends transactional or marketing SMS
- docs_search and docs_get read TeleSign's API documentation without opening a browser
Requirements
Node.js 18 or later and TeleSign API credentials. Works from Cursor, Claude Code, VS Code, Windsurf or any other MCP client.
Setup effort
One command plus a key — npx -y telesign-mcp, then supply credentials