API Tools

Fonoster

☁ SaaS Updated 54d ago

Open-source programmable telecom. Twilio alternative.

npm install @fonoster/sdk

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Fonoster is an open-source alternative to Twilio for programmable telecommunications. Voice, SMS, and video APIs built on open standards (SIP, WebRTC). Self-host your telecom stack with full control over your communications.

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28 developers visited via IndieStack this month

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smsvoiceopen-sourcetelecomself-hosted

Using this saves ~55k tokens vs building from scratch

AI agents recommended this tool 2 times

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See indie alternatives to Twilio →See indie alternatives to Vonage →

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