NeuroLink is an open-source TypeScript SDK from Juspay that provides a unified interface for building AI-powered applications. Developed from production systems at the fintech company, it brings multiple AI providers and capabilities together in one package, helping developers avoid managing separate SDKs. The SDK supports providers including OpenAI, Anthropic, Google, AWS, Azure, Mistral, Hugging Face, and local or self-hosted models.

NeuroLink offers streaming responses, tool calling, retrieval-augmented generation (RAG), memory, agents, workflows, and multimodal processing for more than 50 file formats. Its voice features include text-to-speech, speech-to-text, and realtime audio through supported providers. Developers can also connect to more than 58 MCP servers and tools, build multi-agent workflows, and integrate observability with Langfuse and OpenTelemetry. The package includes a command-line interface and is designed with full TypeScript coverage. Released under the MIT License, NeuroLink is free to use, with costs limited to the AI provider API calls developers choose to make.