Properties
| Name | Type | Description |
|---|---|---|
| model | string | The model to use |
| messages | array | Array of message objects |
| max_tokens | integer | Maximum tokens to generate |
| system | string | System instructions or context |
| stream | boolean | Enable server-sent events streaming |
| temperature | number | Sampling randomness control |
| tools | array | Available functions for tool use |
| tool_choice | string | Tool invocation behavior |
| reasoning | object | Thinking (reasoning) control |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/fastmetal-ai/json-schema/fastmetal-ai-post-v1-messages-request-schema.json",
"title": "PostV1MessagesRequest",
"x-generated": "2026-10-30",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/_ae-authored/fastmetal-ai-core-openapi-generated.yml#/components/schemas/PostV1MessagesRequest",
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "The model to use"
},
"messages": {
"type": "array",
"description": "Array of message objects"
},
"max_tokens": {
"type": "integer",
"description": "Maximum tokens to generate"
},
"system": {
"type": "string",
"description": "System instructions or context"
},
"stream": {
"type": "boolean",
"description": "Enable server-sent events streaming"
},
"temperature": {
"type": "number",
"description": "Sampling randomness control"
},
"tools": {
"type": "array",
"description": "Available functions for tool use"
},
"tool_choice": {
"type": "string",
"description": "Tool invocation behavior"
},
"reasoning": {
"type": "object",
"description": "Thinking (reasoning) control"
}
},
"required": [
"model",
"messages",
"max_tokens"
]
}
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