ThinnestAI is BYOK programmable voice AI infrastructure for building human-like AI phone agents at scale. Built in India for global teams, it supports 100+ languages (every official Indian language plus global) with native STT + TTS pipelines per language — not English-with-translation. Bring your own LLM, STT, TTS, and telephony providers. No-code flow builder with RAG knowledge bases and MCP support. Flat ₹1.5/min platform fee with INR billing, native SIP and Twilio integration, REST + Python + JS SDKs. Targeted at Indian banks, NBFCs, insurers, BPOs, edtech, healthtech, D2C, and logistics companies.