Parse front-matter from a string or file. Fast, reliable and easy to use. Parses YAML front matter by default, but also has support for YAML, JSON, TOML or Coffee Front-Matter, with options to set custom delimiters. Used by metalsmith, assemble, verb and
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1/28/2014
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6/14/2025
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Gaining traction in the ecosystem
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Forked from https://github.com/OpenRouterTeam/ai-sdk-provider
Magniv
PromptLayer is a platform for prompt engineering and tracks your LLM requests.
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The [OpenRouter](https://openrouter.ai/) provider for the [Vercel AI SDK](https://sdk.vercel.ai/docs) gives access to over 300 large language models on the OpenRouter chat and completion APIs.
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