Voice AI & Phone Agents
Voice synthesis, cloning, and conversational voice for products that sell voice as the core capability. 12 tracked on AgentsIndex, with pricing and licences checked.
12 listed5 freeavg $5/month
Reviewed by AgentsIndex · Updated Sep 26, 2026
The Voice AI Agents catalog on AgentsIndex lists 12 tools built for this job. Most are built for developers, product managers, small teams. Entry pricing is at the cheap end of the index — a median of $6/mo against $20/mo — so the cost of being wrong is low. Open source is rarer here than elsewhere on the index — 0 of 12, against 24% overall — so most choices are a vendor relationship rather than a repository.
Voice AI Agents compared
The 9 most-used tools in this category, by published pricing. Everything we know about each one is on its listing.
| Tool | Price from | Free tier | Deployment & compliance |
|---|---|---|---|
| Bland AI | $0.11/mo | Not stated | Self-Hosted · GDPR · SOC 2 · HIPAA |
| Retell AI | Free | Yes | GDPR · SOC 2 · HIPAA |
| Voiceflow | $49/mo | Yes | — |
| Synthflow | Free | Yes | GDPR · SOC 2 · HIPAA · ISO 27001 |
| Vapi | Build Usage based | Not stated | BYOK · SOC 2 · HIPAA |
| Deepgram | $0.3333333333333333/mo | Yes | Self-Hosted · GDPR · SOC 2 · HIPAA |
| VeraDial | $14.99/mo | Not stated | — |
| ElevenLabs | $6/mo | Yes | HIPAA · Self-Hosted · SOC 2 |
| Dial | $3/mo | Not stated | GDPR |
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