---
title: "FusionServerToolOpenRouter"
---

OpenRouter built-in server tool: fans out the user prompt to a panel of analysis models, then asks a judge model to summarize their collective output as structured JSON the outer model can synthesize from.


## Fields

| Field                                                                                                         | Type                                                                                                          | Required                                                                                                      | Description                                                                                                   | Example                                                                                                       |
| ------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- |
| `parameters`                                                                                                  | [Optional[components.FusionServerToolConfig]](../components/fusionservertoolconfig.mdx)                        | :heavy_minus_sign:                                                                                            | Configuration for the openrouter:fusion server tool.                                                          | \{<br/>"analysis_models": [<br/>"~anthropic/claude-opus-latest",<br/>"~openai/gpt-latest",<br/>"~google/gemini-pro-latest"<br/>]<br/>} |
| `type`                                                                                                        | [components.FusionServerToolOpenRouterType](../components/fusionservertoolopenroutertype.mdx)                  | :heavy_check_mark:                                                                                            | N/A                                                                                                           |                                                                                                               |