Providers

clawzero supports multiple LLM providers through two protocol implementations. Adding a new provider requires only a config entry — no code changes.

Anthropic

API Key

[providers.anthropic]
protocol = "anthropic"
base_url = "https://api.anthropic.com"
api_key_env = "ANTHROPIC_API_KEY"

Claude Code setup-token

If you have a Claude Code setup-token (sk-ant-oat01-...), you can use it directly.

[providers.anthropic]
protocol = "anthropic"
base_url = "https://api.anthropic.com"
api_key = "sk-ant-oat01-..."

Run clawzero init and select “Claude Code setup-token” when prompted for the Anthropic authentication method.

OpenAI

[providers.openai]
protocol = "openai"
base_url = "https://api.openai.com"
api_key_env = "OPENAI_API_KEY"

OpenRouter

[providers.openrouter]
protocol = "openai"
base_url = "https://openrouter.ai/api"
api_key_env = "OPENROUTER_API_KEY"

Available models via clawzero init:

anthropic/claude-opus-4.6, anthropic/claude-sonnet-4.5, anthropic/claude-haiku-4.5
google/gemini-2.5-pro, google/gemini-2.5-flash
deepseek/deepseek-r1, deepseek/deepseek-v3.2
meta-llama/llama-3.3-70b-instruct
minimax/minimax-m2.5
moonshotai/kimi-k2.5
z-ai/glm-5

Ollama (local)

[providers.ollama]
protocol = "openai"
base_url = "http://localhost:11434"
api_key = ""

No API key required for local Ollama.

Vertex AI

Uses gcloud CLI for OAuth2 token authentication:

[providers.vertex-claude]
protocol = "anthropic"
base_url = "https://us-central1-aiplatform.googleapis.com"
auth = "vertex"
project_id = "my-gcp-project"
region = "us-central1"

Requires gcloud CLI to be installed and authenticated (gcloud auth print-access-token). Set GCLOUD_PROJECT env var or configure project_id in config.

AWS Bedrock

Requires the bedrock feature flag:

cargo install --path . --features bedrock

[providers.bedrock-claude]
protocol = "anthropic"
base_url = "https://bedrock-runtime.us-east-1.amazonaws.com"
auth = "bedrock"
region = "us-east-1"

Requires AWS credentials (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY) and optionally AWS_REGION.

Provider config fields

Field	Type	Description
`protocol`	`"anthropic"` or `"openai"`	API protocol to use
`base_url`	string	API base URL
`api_key`	string	API key (direct value)
`api_key_env`	string	Env var name for API key
`auth`	`"vertex"` or `"bedrock"`	Cloud authentication method
`project_id`	string	GCP project ID (Vertex AI)
`region`	string	Cloud region (Vertex AI / Bedrock)
`extra_headers`	table	Additional HTTP headers
`models`	array	Restrict available models

Model format

Models are specified in provider/model format:

clawzero --model anthropic/claude-opus-4-6 "Hello"
clawzero --model openai/gpt-4o "Hello"
clawzero --model ollama/llama3 "Hello"
clawzero --model openrouter/meta-llama/llama-3-70b "Hello"

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