Open Assistant API

Self-hosted, open-source framework for building and orchestrating AI assistants.

PlatformWebfreeglobal

Open Assistant API is a free, open-source, self-hosted framework for creating and orchestrating AI assistants, supporting custom LLM, RAG, function calling, and tool extensions. It's built for developers who want to build production AI assistants on infrastructure they control rather than a closed, hosted assistant platform.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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