# Synthflow

> No-code platform to build, test, and deploy conversational voice AI agents

Synthflow is a voice AI platform that lets businesses create and deploy custom telephone agents for inbound and outbound calls. It features a visual flow designer, native telephony integration with low latency, and a marketplace for licensing pre-built agent templates.

Website: https://synthflow.ai/

## What it is for

- Automate customer service phone calls and tier-1 support
- Schedule appointments and qualify incoming sales leads over the phone
- Handle after-hours inquiries and store-hour questions without human staff
- Sell pre-built voice assistant configurations as licensed templates via Stripe

## Features

- Visual multi-agent flow builder to design step-by-step call logic
- In-house telephony infrastructure with low latency and BYOC SIP support
- AI sandbox and automated testing center for call simulation before launch
- Custom voice cloning and integration with models like GPT-4o
- Template licensing marketplace with native Stripe billing integration
- CRM and business tool integrations for real-time actions and scheduling
- Security compliance including SOC 2, HIPAA, PCI DSS, and GDPR

## Pricing

Freemium. Free to build and test; paid deployment on pay-as-you-go or enterprise tiers.

## Details

- Type: Web app
- Category: [AI](https://xiry.app/topics/ai.md)
- Topic: [Voice AI](https://xiry.app/topics/ai/voice-ai.md)
- Open source: no
- Platforms: Web, API
- For: Businesses, agencies, and developers automating phone customer service and sales calls.
- Alternative to: Bland AI, Vapi, Retell AI
- Tags: voice agents, call automation, no code, conversational ai, telephony, customer support

## Why it was saved

- [@dr_cintas, 1 March 2025](https://x.com/dr_cintas/status/1895879543245926647): The thread shows the whole workflow: create an inbound voice assistant in minutes with no code (the demo used a cloned voice handling store-hour questions), then go to Template \> Licensing & Pricing to describe it, set pricing and connect Stripe so others can buy it. Ready-made templates at marketplace.synthflow.ai/ai-assistants.

## Compare

- [Alternatives to Vapi](https://xiry.app/alternatives/vapi.md)
- [Alternatives to Retell AI](https://xiry.app/alternatives/retell-ai.md)
- [Alternatives to Bland AI](https://xiry.app/alternatives/bland-ai.md)

## Related

- [ElevenLabs Conversational AI](https://xiry.app/resources/elevenlabs-conversational-ai): Platform for building and deploying interactive voice AI agents. (Web app, Freemium)
- [LiveKit Agents](https://xiry.app/resources/livekit-agents): Open-source Python framework for building realtime voice and multimodal AI assistants (GitHub repo, Open source)
- [Miso-TTS](https://xiry.app/resources/miso-tts): Open-source emotive text-to-speech foundation model with low conversational latency. (AI model, Open source)
- [Open-Source Real-Time Voice Agent Stack](https://xiry.app/resources/open-source-real-time-voice-agent-stack): A low-cost, open-source stack for building real-time AI voice assistants (Tip, Open source)
- [OpenHome](https://xiry.app/resources/openhome): Platform and SDK for building custom AI voice agents and smart devices (Web app, Freemium)
- [Voiceflow](https://xiry.app/resources/voiceflow): Collaborative visual builder for conversational AI and voice agents. (Web app, Freemium)

Updated 10 October 2026. Page: https://xiry.app/resources/synthflow

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