bite

A terminal-first AI nutritionist. Chat in your terminal — log meals, track calories and macros, set goals.

$ bite chat
> had 200g of pasta with pesto for lunch
  Logged. ~480 kcal · 62g carbs · 14g fat · 12g protein.
  You're at 1,240 / 2,000 kcal today.

Requirements

• Go 1.25+
• An API key for one of the supported providers (Anthropic, OpenAI, Gemini), or a local Ollama install — bite can offer to set one up for you on first run.

Quickstart

git clone https://github.com/nicksan222/bite
cd bite

cp .env.example .env
# add ANTHROPIC_API_KEY (or OPENAI_API_KEY / GEMINI_API_KEY) to .env
# — or skip this step and bite will offer to install Ollama locally on first run

make setup
make run

Configuration

All config lives in .env (or environment variables):

Variable	Default	Description
BITE_PROVIDER	auto-detect	anthropic · openai · gemini · ollama. Empty picks the first provider whose key is set.
ANTHROPIC_API_KEY	—	Anthropic key (default provider).
OPENAI_API_KEY	—	OpenAI key. Also enables Whisper audio transcription.
GEMINI_API_KEY	—	Google Gemini key.
OLLAMA_BASE_URL	http://localhost:11434	Local Ollama daemon URL.
BITE_DB	$XDG_DATA_HOME/bite/bite.db	SQLite database path.
BITE_MODEL	provider's default	Override the model ID for the active provider.
BITE_MAX_TOKENS	4096	Max tokens per turn.
BITE_SYSTEM_PROMPT	built-in	Override the nutritionist prompt.

Commands

make run     # open chat TUI
make test    # run tests
make lint    # golangci-lint
make build   # build ./bin/bite

Every domain action is also a top-level subcommand and a slash command inside chat — both auto-generated from the same internal/tools registry:

bite log_meal "200g pasta with pesto"          # CLI
bite meals_today                               # today's intake summary
bite ask "kcal in 200g salmon?"                # one-shot question

# inside chat
> /log_meal pasta kcal=480
> /help                                        # list every slash command

Run bite doctor if something feels off — the check list is auto-derived from registered checks and grows whenever tools.RegisterCheck is added.

Stack

Go · eino (Anthropic · OpenAI · Gemini · Ollama) · bubbletea · SQLite