Open Source

We believe in giving back to the community that built the tools we use every day.

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The core TokenFin instrumentation SDK is open source under MIT. Instrument your LLM calls and contribute to the community.

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Official adapters for OpenAI, Anthropic, Bedrock, Mistral, Groq, LangChain, and LlamaIndex — all open source.

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Our full documentation site is open source. Found a typo or want to add an example? PRs welcome.

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We welcome contributions of all kinds — code, docs, bug reports, and feature requests. See our contributing guide on GitHub.