Bolcho
A voice AI platform for India to quickly build multilingual AI agents for phone calls and website chats.
About Bolcho
Bolcho is a voice AI platform for the Indian market that builds AI agents for phone calls and website chats. It supports Hindi, English, and multiple Indian languages, and can switch in-call when the caller changes language. The platform supports inbound and outbound calling; users can purchase numbers or connect their own carrier through Plivo or SIP. Speech recognition, LLM, and text-to-speech services can be selected from multiple providers and switched at any time. The same agent can be embedded on a website as a chat widget with one line of code, with branding, lead capture, sentiment analysis, and conversation analysis. All dashboard functions are available through a REST API and Webhooks, with structured outputs and server-side tools callable during conversations. The company states that billing is close to the providers' raw costs, measured precisely in rupees, and that users can start for free without a credit card.
Best for
Best use cases
Automatically call sales leads, qualify and schedule appointments in natural conversations, record the full process, and follow up through WhatsApp
Set up an AI voice agent to answer inbound calls and route a number to the assistant within minutes
Embed an AI chat widget on a website with one line of code to capture leads and view sentiment and conversation analysis
Provide multilingual customer service that switches instantly during calls between Hindi, Tamil, and other languages based on the caller
Features
Multilingual voice and chat agents
Build AI agents for handling phone calls and website chats in Hindi, English, Hinglish, Tamil, Telugu, Bengali, and more, with instant in-call language switching based on the caller.
Inbound and outbound calling
Purchase a number from Bolcho, or connect your own carrier through Plivo or SIP and route any number to the AI assistant within minutes.
Flexible provider switching
Choose Deepgram or Sarvam for speech recognition; xAI Grok, OpenAI, Anthropic, Google, or Sarvam for LLMs; and Sarvam, Azure, xAI, ElevenLabs, Cartesia, or Smallest for voice, with all providers switchable at any time.
Developer REST API
Every dashboard function is available through a REST API, including Webhooks, scoped API keys, structured outputs, and server-side tools that agents can call during conversations.
Pros
- Supports Hindi, Hinglish, Tamil, Telugu, Bengali, and more, with instant in-call language switching based on the caller
- Speech recognition, LLM, and text-to-speech providers can be switched at any time, including Deepgram, OpenAI, and ElevenLabs
- The company states that engineering optimizations such as audio and prompt caching reduce the cost of each conversation by about 20%
- Embed a branded chat widget with one line of code, with built-in lead capture plus sentiment and conversation analysis