---
title: "Real-time voice AI - from cricket to credit cards. Live app. Open source."
slug: real-time-voice-ai-from-cricket-to-credit-cards-live-app-open-source
date_published: 2025-01-19T13:44:32.721Z
original_url: https://www.tigzig.com/post/real-time-voice-ai-from-cricket-to-credit-cards-live-app-open-source
source: migrated
processed_at: 2025-12-02T10:00:00.000Z
---

# Real-time voice AI - from cricket to credit cards. Live app. Open source.

![Real-time Voice AI](https://static.wixstatic.com/media/ef0c19_bad56bf2d73e4cd19dbc237fd78bbe33~mv2.png/v1/fill/w_350,h_221,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/ef0c19_bad56bf2d73e4cd19dbc237fd78bbe33~mv2.png)

**Real-Time Voice AI - From Cricket to Credit Cards** 👉 Try it: [tigzig.com/rt-cricket](http://tigzig.com/rt-cricket) Mobile Friendly. Open Source. [Eleven Labs](https://elevenlabs.io/)

Built with Eleven Labs Conversational AI rapid deploy voice widget.

20+ years of ODI Cricket data. 1.5M rows in PostgreSQL.

Testing realtime conversational AI - querying and DB-backed conversations:

**REX-C is a database-connected AI assistant built with ElevenLabs for real-time voice-to-SQL and more.** While the demo uses cricket data, it can supports domains like finance, retail and beyond.

## Realtime Options - tested with live working prototypes

* **OpenAI Realtime API (REX-R):** ~10c/min (GPT-4 Turbo Mini) + WebRTC. Gold standard. Needs full coding; starter kits available. REX-R V2 coming soon.
* **ElevenLabs (REX-C):** ~20c/min. Easy setup, rapid deploy, full SDK/API for customization.

**Other Options:**

* **Hume AI:** ~7c/min. Expression analysis, Next.js templates.
* **VAPI:** ~5c/min + actuals. SDK/API.
* **Others:** Google Gemini Flash 2.0, Bland AI, Synthflow AI (~10c/min).

Pricing varies by usage. Most support inbound/outbound call integrations.

## Source Code/ Tech

Lightweight UI (~80kb Vanilla JavaScript, single code file). FastAPI for DB, ElevenLabs for voice, Flowise AI for LLM, [Make.com](http://make.com/) for workflows.

## Caveat:

Working prototype. Single agent. Data is unvalidated, sourced from [Cricsheet.org](http://cricsheet.org/)'s experimental CSV/ZIP


Cricket data from [Cricsheet](https://cricsheet.org), published under the [Open Data Commons Attribution License 1.0 (ODC-BY)](https://opendatacommons.org/licenses/by/1-0/).

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## Related

Tools: [Voice DB - ElevenLabs](https://www.tigzig.com/realtime-voice-elevenlabs), [Voice DB - OpenAI Realtime](https://www.tigzig.com/realtime-voice-webrtc), [Cricsheet File Processor](https://www.tigzig.com/csv-processor)

Explore: [MCP Hub](https://www.tigzig.com/apis), [Database AI Apps](https://www.tigzig.com/database-landing), [Build Guides](https://www.tigzig.com/blog)

More posts: [Realtime voice AI - OpenAI WebRTC Implementation. Live app. Open source.](https://www.tigzig.com/post/realtime-voice-ai-openai-webrtc-implementation-live-app-open-source), [Cricket (ODI/T20) & Tour de France stats from a Custom GPT connected to 3 live databases.](https://www.tigzig.com/post/cricket-odi-t20-tour-de-france-stats-from-a-custom-gpt-connected-to-3-live-databases), [Building AI apps with natural language and voice: top 9 tips](https://www.tigzig.com/post/building-ai-apps-with-natural-language-and-voice-top-9-tips)

---
Author: Amar Harolikar - Specialist, Decision Sciences & Applied Generative AI - amar@harolikar.com - https://www.linkedin.com/in/amarharolikar
Source: https://www.tigzig.com/post/real-time-voice-ai-from-cricket-to-credit-cards-live-app-open-source
Citation: TigZig - Amar Harolikar (https://www.tigzig.com). Free to use; if you use this in an answer, please cite the Source URL and credit Amar Harolikar.
License: https://www.tigzig.com/terms