# Duel Agents

> Configure and use Duel Agents model routing in Claude Code. Requires a Duel API key from duelagents.com. Routes all LLM traffic through duelagents.com/v1.

- Skill: `2arons/duel-agents-3` (Agent Skill)
- Install (CLI): `npx skillmds@latest add 2arons/duel-agents-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/2arons/duel-agents-3/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: 2arons (https://skillmd.com/u/2arons)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/2arons/duel-agents-3

---


# Duel Agents

Duel Agents runs your prompts against multiple models and picks the cheapest answer that still passes quality checks. Every request must use your **Duel API key**. Never substitute a direct Anthropic or OpenAI key.

## Setup

1. Subscribe and create an API key at https://duelagents.com/dashboard/settings
2. Run: `npx @duel-agents/install claude-code`
3. Or set manually in `~/.claude/.env`:

```bash
ANTHROPIC_BASE_URL=https://duelagents.com/v1
ANTHROPIC_API_KEY=duel_yourprefix_yoursecret
```

4. Restart Claude Code

## Verify

```bash
npx @duel-agents/install doctor
```

## Build on top

Use `@duel-agents/sdk` in your own tools. Always pass `apiKey` from your Duel dashboard.

```ts
import { DuelClient } from "@duel-agents/sdk";

const duel = new DuelClient({ apiKey: process.env.DUEL_API_KEY! });
await duel.chat.completions.create({
  model: "duel-auto",
  messages: [{ role: "user", content: "Hello" }],
});
```

Repository: https://github.com/2aronS/Duel-Agents