Vapi - Voice AI agents for Developers

🗣️ Voice AI is taking off—but building reliable voice agents still takes most teams weeks or months of stitching together and scaling infrastructure. With Vapi, our goal is to compress that down to minutes. A single platform where developers can deploy and scale voice agents without wrangling telephony, speech models, or orchestration logic ☎️

Want to hear Vapi in action? Call me: 🤙 1-844-HEY-VAPI

What's New Since Our Last Launch

🔗 API Integrations: You can now connect Vapi to 100+ providers across transcription, LLMs, and TTS. We’ve also added integrations for SIP, cloud infra, observability tools, and native hooks into calendars, CRMs, and more.

🔧 Embedded Tools: Turn-taking orchestration, noise cancellation, voicemail detection, and a test rig for simulating complex call flows.

🎙️ Deep Customization: The assistant layer now includes a prompt composer, support for persistent memory, dynamic variables, real-time endpointing, multilingual output, OpenAI’s speech-to-speech model, and more.

📈 Infra at Scale: We’ve now powered over 44 million calls with <500ms latency. The system handles long calls (60+ minutes) and meets enterprise standards like HIPAA and SOC-2.

🌐 Deploy Anywhere: Telephony, Web, iOS, Android, React Native, Flutter, Python.

🚀 New Features

🔍 Query Tool for Knowledge Bases: Attach structured or unstructured knowledge to your agent for more contextually grounded responses.

⚙️ Conversational Workflows: Visually build out flows that split complex conversations into manageable, deterministic steps.

🛠️ Assistant Tools: Call transfers, hang-ups, data retrieval, voicemail detection, keypad dialing, plus automation integrations with tools like Make and GHL.

🧩 Observability: Integrated with Langfuse. See transcripts, call outcomes, engagement metrics, quality ratings, and success/failure evaluations.

🎤 Vapi Voices: We trained 10 new voices on actual human conversations. One of them is mine—curious which? You know what to do 🤙1-844-HEY-VAPI

➡️ Why Vapi? 

• We’re building for developers who want full control over the voice layer—without spending months on plumbing.

• Our community includes 150,000 developers, from indie devs to Fortune 500 enterprises.

• We’ve handled 44 million+ calls to date, all in sub-500ms latency.

➡️ Special Product Hunt Offer

To make it easier to get started, we’re covering telephony for up to 10 inbound phone lines in the US.

And if you create an account this week: 1,000 free minutes per month, for life.

Cheers,
Jordan

P.S. Call me to see what voice agents should feel like.  😉🤙1-844-HEY-VAPI

Vapi is transforming voice AI deployment by offering developers an API-first platform to build, test, and deploy conversational voice agents rapidly. Its seamless integration across applications really enhances configurability and scalability.
How does Vapi ensure low-latency, real-time interactions across diverse geographic regions, particularly meeting the sub-500ms voice-to-voice latency requirement? Also, Integrating advanced analytics dashboards could provide developers with deeper insights into agent performance and user interactions.

Vapi is one of those platforms that just makes sense once you see it in action. It feels like it’s doing for voice AI what Stripe did for payments: a simple way to just build things on top of incredibly useful tech. Super cool, and congrats on the launch!

I'm really excited to see VAPI on Product Hunt! I've worked on voice agents for everyone from small businesses to Fortune 500 companies, and honestly, VAPI is hands down the best voice AI service out there. Whether you're setting up a simple voice assistant or building something more complex, it delivers every time. It's already helped generate millions in new revenue, and I can see it's going to keep shaking things up in one of the fastest-growing industries of 2025. If you haven't heard of VAPI yet, you definitely should check it out!

What is the answer to life, the universe, and everything?

Vapi.

Love how Vapi simplifies the entire voice stack into something developers can actually enjoy using. Compressing weeks of work into minutes sounds like a total game changer for voice experiences.

I love how Vapi is streamlining voice agent deployment by removing the complex infrastructure hassles—it's such a game-changer for developers! The ability to integrate 100+ providers and customize the assistant layer sounds like a huge leap forward. What types of real-world use cases do you see benefiting the most from these new features, especially with the added multilingual support and real-time endpointing?

VAPI is amazing especially for developers. It is flexible and you can pretty much build anything and yet you also have access to the latest voice, llm and transcription models.

Great team! Exciting to see all the new features.

I just played around with the agent… it’s incredible how it feels like I’m talking to a person. Excited to build with this!

Engineer at a startup and 10/10 would recommend VAPI for projects around voice AI

I love working with the VAPI platform's API. The VAPI platform is really helping us move fast in delivering product for our customers.

Echoing another point I've seen in this thread that I can't agree more with:

A16Z called it—2025 is the year of Voice AI. And just last week, one of the most respected tech CEOs in Silicon Valley said:
“If you’re serious about building in Voice AI, you’re building on Vapi.”

Congrats on the launch! That 1-844-HEY-VAPI demo is seriously cool, the latency is amazing

Absolutely the best Voice AI platform in existence. It's been phenomenal to witness how fast these guys are adding high impact features to the platform, and they don't seem to be slowing down. The product and team are amazing! Congrats you guys!

Jordan and team are clearly allergic to not shipping

Have used this product for creating ai interviews . Really great product from a consumer perspective.

vapi knows exactly how to delight devs. i trust the team !! <3

This is going to be a game changer for businesses!