Map an LLM provider name to its environment variable
Arguments
- provider
character(1) one of "openai", "anthropic", "claude", "gemini", "google", "ollama"
Value
character(1) environment variable name, or "" for keyless providers
Examples
llm_env_var("anthropic")
#> [1] "ANTHROPIC_API_KEY"
llm_env_var("ollama") # "" — ollama needs no key
#> [1] ""