Fields
| Field | Type | Required | Description | Example |
|---|---|---|---|---|
Aliases | []components.ServerToolInputName | :heavy_check_mark: | Every spelling accepted in tools[].type for this tool, including the canonical id, and what the call surfaces as under each | |
DefaultEngine | *string | :heavy_check_mark: | The engine a request without parameters.engine (or with engine: "auto") runs on; native applies where the endpoint runs the tool itself, otherwise fallback_engine. A request pinned to a data region skips either engine when its data_regions does not list that region. Null for a tool without an engine parameter | native |
DocsURL | string | :heavy_check_mark: | N/A | |
Engines | []components.ServerToolEngine | :heavy_check_mark: | N/A | |
FallbackEngine | *string | :heavy_check_mark: | The engine an unpinned request runs on when default_engine is native and the endpoint does not run the tool itself; null when there is no fallback | exa |
ID | string | :heavy_check_mark: | Canonical openrouter:* name; the stable tools[].type on every API format in supported_api_formats | openrouter:web_search |
InputSchema | map[string]any | :heavy_check_mark: | JSON Schema of the arguments the model emits when calling the tool | { “properties”: {}, “type”: “object” } |
Name | string | :heavy_check_mark: | N/A | Web search |
NativeSupport | components.NativeSupport | :heavy_check_mark: | Endpoints whose provider runs this tool itself during inference. Zero for tools no provider runs natively. | { “endpoint_count”: 18, “model_count”: 12 } |
OutputSchema | map[string]any | :heavy_check_mark: | JSON Schema of the result returned to the model; null when undeclared | { “properties”: {}, “type”: “object” } |
ParametersSchema | map[string]any | :heavy_check_mark: | JSON Schema for the caller-side tools[].parameters object | { “properties”: {}, “type”: “object” } |
Status | components.ServerToolDetailsStatus | :heavy_check_mark: | N/A | active |
Summary | string | :heavy_check_mark: | One sentence for cards and search results; never sent to a model | |
SupportedAPIFormats | []components.ServerToolDetailsSupportedAPIFormat | :heavy_check_mark: | N/A | |
ToolDescription | string | :heavy_check_mark: | The description sent upstream as the function tool description |