Bring Your Own Anthropic Key
Connect your Anthropic API key and LunoGen uses your account for all Claude calls. You control billing, model access, and rate limits — and gain access to the latest Claude releases as soon as they ship.
Conversation example
Switch my agent to use my Anthropic key and make Claude Opus the default
Validating Anthropic key and checking model access...
Switched Key: sk-ant-...qM3a (verified) Workspace: lunogen-prod Reasoning model: claude-opus (default) Fast model: claude-haiku (default) Vision: enabled Access confirmed to claude-opus, claude-sonnet, and claude-haiku. Context window: up to 1M tokens on Opus. Prompt caching available — want me to enable it? It typically cuts repeated-context costs by 70 to 90 percent.
More Anthropic use cases
Claude Opus for Complex Reasoning
Route your hardest tasks — deep research, multi-step tool use, long planning — to Claude Opus. The agent detects complexity and automatically uses Opus when the prompt needs it.
Claude Haiku for Fast, Cheap Replies
Quick user messages — greetings, simple questions, intent checks — get routed to Claude Haiku for near-instant, low-cost replies. Opus handles the thinking, Haiku handles the talking.
Prompt Caching for Cost Savings
LunoGen caches your long system prompt, memory context, and knowledge base on Anthropic's side. Repeated calls hit the cache and cost a fraction of normal tokens — often cutting bills by 70% or more.
Messages API with Tool Use
LunoGen uses Anthropic's Messages API with tool use for structured agent actions. Claude decides which tool to call, and the agent executes HTTP requests, sends WhatsApp messages, or writes files in one loop.
Vision Tasks on WhatsApp Images
Send an image to the agent on WhatsApp and it runs Claude vision — reading receipts, describing screenshots, extracting handwritten notes, or checking a product photo for defects.
Deploy this in minutes
Create a LunoGen agent, connect Anthropic, and start running this workflow from WhatsApp today.