Bolna

Bolna is a Bengaluru-based voice AI platform for building and deploying phone-call agents that speak Indian languages. It orchestrates speech-to-text, an LLM, and text-to-speech with telephony providers, and is offered both as an open-source framework and a managed dashboard and API. It targets enterprises automating high-volume inbound and outbound calls.

Bolna is a voice AI orchestration platform aimed squarely at Indian enterprises that run high volumes of phone calls. Rather than forcing teams to wire together their own transcription, language model, text-to-speech, and telephony stack, Bolna manages that pipeline end to end and focuses on low-latency, interruptible conversations in vernacular Indian languages. Founded in 2024 and based in Bengaluru, the company went through Y Combinator's Fall 2025 batch and positions itself as voice infrastructure for "India's next billion" callers. The product exists in two forms. There is an open-source framework on GitHub that developers can self-host and extend, and there is a hosted platform with a no-code dashboard, phone-number provisioning, and a Python SDK plus REST API for programmatic control. Agents can call external APIs mid-conversation, transfer to a human when needed, and the company reports sub-300ms response latency. Bolna is provider-agnostic, integrating with telephony services like Twilio and Plivo and a range of ASR, LLM, and TTS vendors, as well as automation tools such as n8n, Make, and Zapier. Bolna is used across e-commerce, BFSI, logistics, recruitment, and education for use cases like lead qualification, order confirmation, collections reminders, and support triage. In January 2026 the company reported a $6.3M seed round led by General Catalyst, with participation from Y Combinator, Blume Ventures, and others.