# llmPlugin

[← All plugins](/docs/reference/plugins)

```ts
import { llmPlugin } from '@routecraft/ai'
```

Registers LLM provider credentials in the context store. Required when any capability uses `llm()`. Configure once; all `llm()` calls in the context share it.

```ts
import { llmPlugin } from '@routecraft/ai'
import type { CraftConfig } from '@routecraft/routecraft'

const config: CraftConfig = {
  plugins: [
    llmPlugin({
      providers: {
        anthropic: { apiKey: process.env.ANTHROPIC_API_KEY },
        openai: { apiKey: process.env.OPENAI_API_KEY },
      },
    }),
  ],
}

export default config
```

**Options:**

| Option | Type | Required | Description |
|--------|------|----------|-------------|
| `providers` | `LlmPluginProviders` | Yes | Provider credentials (at least one required) |
| `defaultOptions` | `Partial<LlmOptions>` | No | Default options applied to all `llm()` calls |

**Providers:**

| Provider | Options | Description |
|----------|---------|-------------|
| `openai` | `{ apiKey: string, baseURL?: string }` | OpenAI API |
| `anthropic` | `{ apiKey: string }` | Anthropic API |
| `openrouter` | `{ apiKey: string, modelId?: string }` | OpenRouter API |
| `ollama` | `{ baseURL?: string, modelId?: string }` | Local Ollama instance |
| `gemini` | `{ apiKey: string }` | Google Gemini API |

See [`llm` adapter](/docs/reference/adapters/llm) for usage.