Voice AI for phone agents. $0.05/min. OpenAI-compatible.
Build a realtime phone agent and log every call for compliance - all on one OpenAI-compatible API. Start free with $50 in credits. No card.
$50 in free credits - no card
Tap a voice - no signup, no key.
Want the full thing - Hear, Omni, code export?Open the Playground
See where your voice AI budget leaks
Compare labor, platform fees, and all-in agent minutes before you commit to another stitched stack.
Live latency receipts, refreshing every couple of seconds. Publish measured p50/p95/p99, then verify against your own call scripts.
Powering voice & messaging for teams like
Plugs into the stack you already run
Developers ship in two lines. Teams launch with no code.
Whether you write the integration or describe the agent, PyAI meets you where you are.
For developers
Keep your OpenAI SDK. Change two lines, pass a PyAI key, and you have transcription, speech, and realtime agents - typed SDKs, idempotency, and stable error codes included.
curl https://api.pyai.com/v1/audio/speech \
-H "Authorization: Bearer $PYAI_KEY" \
-d '{"model":"pyai-voice","input":"Hello from PyAI."}' \
--output hello.mp3For teams
Describe a phone agent in plain English, ground it in your docs, give it tools - and point your number at it. A working receptionist that books, answers, and transfers, in minutes.
- No-code agent builder in the console
- Answers from your knowledge base
- Books, sends, and warm-transfers via tools
- Pennies per minute, everything included
Four products that matter. One free way in.
Omni API, Omni Agents, Trace, and Cast are the money products. Hear is the free developer wedge. Speak, Telephony, and Recap are primitives or add-ons underneath the stack.
Omni
End-to-end realtime voice agents.
Omni Agents
Managed phone agents with evals, telephony, and Recap.
Cast
Emotional long-form TTS for podcasts, narration, and audiobooks.
Trace
Compliance & QA on every call, automatically.
Free way in: Hear
Give developers 10,000 transcription minutes every month, then let production usage graduate into Omni, Agents, Trace, and Cast. Hear, Speak, Telephony, and Recap stay available as low-level building blocks.
Watch a call flow through PyAI, end to end
Tap play. One front-desk call - ring to CRM - with every step powered by a PyAI model you can click into.
Acme Dental’s front-desk agent - every step powered by PyAI.
Hear <-> Speak repeats every turn, with barge-in - then the call becomes data.
Each step is a PyAI model. Press play to watch them hand off - or tap any stage to jump.
- Hear
pyai-hear-telephony - Listening layer
internal - Omni brain
pyai-omni-realtime - Speak
pyai-voice
Transcript, summary, intent, and disposition - emitted as JSON when the call ends.
Best price. Best latency. Built for the phone.
The boring stuff done right, so your agents are fast, cheap, and trustworthy.
The best price per minute
Omni API is $0.05/min all-in and transcription is $0.003/min - with per-second AI billing and telephony split out separately.
Telephony-native
Hear is tuned for 8 kHz call audio and Omni is built for phone turn-taking and barge-in - not repurposed studio models.
OpenAI-compatible
Keep your SDK and your error handling. Change base_url and key; everything else just works.
Realtime and fast
Speak streams from the first byte (~32-98 ms) and Omni answers with ~431 ms median turn-taking.
Grounded and tool-using
Bind knowledge bases and webhook tools so agents answer from your content and take real actions.
Honest billing
Per-second metering rounded once at the invoice, a clear rate card, and free credit to start. No surprises.
SOC 2 compliant
Independently audited security controls protect your data - and your callers'.
HIPAA-ready
A Business Associate Agreement and custom data terms for regulated teams.
Tamper-evident audit trail
Trace stamps every call with a verifiable audit hash and findings that cite the rule.
99.99% uptime
Real-time status and incident history at status.pyai.com.
OpenAI-compatible
Point your existing SDK at our base URL - keep your code and error handling.
A human answers
Reply to any email and a person reads it - not a ticket queue.
Teams book more - and resolve faster - with PyAI.
From AI appointment booking to compliance on every call, here's what customers see.
“Our AI Agents book appointments 24/7 - that drove 57% incremental revenue for our customers. It's our hottest-selling product.”
“We run healthcare and TCPA-heavy lines. Trace auto-scores every call against our rule packs, so compliance stopped being a fire drill.”
“Time to first reply is under a minute and CSAT is at an all-time high - while our cost per resolution keeps dropping.”
One hero number, then clear packages.
Start free with $50 in credits and 10,000 free speech-to-text minutes every month. Pay for Omni, Agents, Trace, and Cast when they create value.
Realtime voice agent API
Managed agents with evals and Recap included
Compliance, QA, evals
Async emotional TTS
Hear gives developers 10,000 free transcription minutes every month. Telephony is $0.01/min; Recap is $0.03/min on Omni API and included in Agents; KB Context is $0.003/min.
in free credits to start. Plus 10,000 free speech-to-text minutes every month and $5.00/month recurring credit. No card.
Claim your free creditsUsing Cursor, Claude Code, Codex, or Lovable?
Start with one prompt. We hand your agent the API contract, the SDKs, and a free test key - so it writes correct PyAI code on the first try.
Questions, answered
Is PyAI OpenAI-compatible?
Yes. Point your existing OpenAI SDK at https://api.pyai.com/v1 and pass your PyAI key. Transcription and speech use the same request and response shapes, and errors come back in the OpenAI envelope.
How much does it cost?
Hear (transcription) gives you 10,000 minutes free every month; beyond that it's $0.003/min. Omni API is $0.05/min all-in, and managed Omni Agents are $0.08/min. You also start with $50.00 in free credits plus $5.00/month - no card.
Is it good for telephony?
That's the focus. Hear is tuned for 8 kHz call audio, and Omni does end-to-end phone agents with ~431 ms median turn-taking and barge-in.
Do I need a credit card to start?
No. Sign up and your sandbox test key works instantly with free credit. Add funding only when you're ready to send live traffic.
Stop paying for stitched voice AI.
Start with a free key, 10,000 Hear minutes every month, and $50 in credits. Test the same OpenAI-compatible stack you can take to production with Omni, Agents, and Trace.
No credit card - OpenAI-compatible - cancel anytime