.env.example

# Cohere API key - used server-side only (RAG embeddings, rerank, and chat).
# Get one at https://dashboard.cohere.com/api-keys
COHERE_API_KEY=your_cohere_api_key_here

# Vercel Blob read/write token - required in Vercel for persistent kb.json storage.
# In local development this app falls back to data/kb.json when this is omitted.
BLOB_READ_WRITE_TOKEN=your_vercel_blob_read_write_token_here