tools
Synthflow AI Voice Agent Builder
Synthflow builds AI voice agents for inbound and outbound calls, with visual workflows, telephony, integrations, testing, and monitoring.

In inglese
Synthflow is a web platform for designing, testing, launching, and monitoring AI voice agents. Teams can create inbound and outbound call flows, connect APIs and business systems, route calls, book appointments, answer questions, and transfer callers to people.
It is used by customer service, sales, operations, healthcare, financial services, and contact-center teams. Agents can also work through chat, SMS, WhatsApp, and website or app widgets. Building is available for free, while live usage and enterprise deployments are billed according to account terms or contract scope.
Features
- Visual Flow Designer for structured, multi-step call logic
- Inbound, outbound, and embeddable Voice Widget agents
- API, webhook, CRM, calendar, and knowledge-base integrations
- Test Center simulations and custom evaluation workflows
- Call recordings, transcripts, logs, analytics, and monitoring
- Human handoffs, SIP transfers, routing, and escalation rules
- Chat, SMS, WhatsApp, and website or app deployment options
- Public API for creating and managing agents
Use cases
- Answer customer-support questions and route complex calls
- Book appointments and send reminders
- Qualify leads and launch outbound campaigns
- Collect information and update CRM records
- Handle after-hours calls and overflow traffic
- Transfer urgent or specialized requests to human teams
Pros
Cons
Latest updates
- Campaigns, Advanced Synthflow LLM, Business Hours, Analytics Across Subaccounts & more
Outbound campaigns can be launched and managed through the API; agents can keep office hours; analytics span every subaccount.
- Synthflow Recognized as a Voice AI Leader — Official Claude, Five9 & More
Claude connector and plugin, Five9 Handoff, live call monitoring, WebSocket media, and background audio on running actions.
- Claude Code & Codex Connectors, Zoom & RingCX, Cross-Channel Memory, Custom Caller ID on Warm Transfers & more
Claude Code and Codex connectors, Zoom and RingCX integrations, shared memory across voice, SMS, and WhatsApp, and caller-ID controls on warm transfers.
- ElevenLabs V3, Synthflow TTS, MCP Servers, Outbound Number Pooling & more
ElevenLabs V3, Synthflow TTS, MCP server connections, and outbound number pooling.
- Introducing Aurora, Synthflow's agentic operating layer for AI agents
Aurora builds the agent, configures the logic, prepares tests, and uses real conversations to surface what needs to improve next.
Capabilities
- Automations — “Synthflow automates the calls that slow teams down.” source
- AI agents — “Synthflow is an AI voice agent platform that helps businesses automate phone calls across customer service, sales, appointment booking and call routing.” source
- Connects your apps — “Yes. Synthflow connects to CRMs, ERPs, and platforms like Google Cloud, Zapier , and HubSpot .” source
- API — “API Docs” source
- Admin controls — “Synthflow’s infrastructure is certified across SOC 2, HIPAA, PCI DSS, and GDPR — with full encryption, audit logs, and region-based hosting built into every release.” source
Get it
Security
Pricing
- Starting price
- $30000/yr
- Prices checked
- 2026-09-24
- Read
- by web search
Enterprise
- Enterprise contracts start at $30,000 annually
- Enterprise SLA and support terms scoped in contract
- Synthflow Native Telephony, SIP trunking, or approved enterprise telephony
- Custom concurrency planning, routing, escalation paths, handoffs, and fallback logic
- CRM, calendar, contact-center stack, webhook, API, and knowledge-source integrations
- MSA/DPA support, data handling review, workspace controls, and enterprise security review
- Implementation, onboarding, testing, training, launch support, and ongoing optimization