Messages（思考モード） - 302.AI API 書類

Request

Header Params

Body Params application/json

Example

{
    "model": "claude-sonnet-4-5-20250929",
    "max_tokens": 20000,
    "thinking": {
        "type": "enabled",
        "budget_tokens": 16000
    },
    "messages": [
        {
            "role": "user",
            "content": "What is 27 * 453?"
        }
    ]
}

Request Code Samples

Shell

JavaScript

Java

Swift

Go

PHP

Python

HTTP

C

C#

Objective-C

Ruby

OCaml

Dart

R

curl --location --request POST 'https://api.302.ai/v1/messages' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "claude-sonnet-4-5-20250929",
    "max_tokens": 20000,
    "thinking": {
        "type": "enabled",
        "budget_tokens": 16000
    },
    "messages": [
        {
            "role": "user",
            "content": "What is 27 * 453?"
        }
    ]
}'

Responses

🟢200OK

application/json

Body

Example

{
    "model": "claude-sonnet-4-5-20250929",
    "id": "msg_01EDmCq8NzXquYqBZHRXPoxv",
    "type": "message",
    "role": "assistant",
    "content": [
        {
            "type": "thinking",
            "thinking": "I need to calculate 27 * 453.\n\nLet me break this down:\n27 * 453 = 27 * (450 + 3)\n= 27 * 450 + 27 * 3\n= 27 * 450 + 81\n\nNow 27 * 450:\n27 * 450 = 27 * 45 * 10\n27 * 45 = 27 * (40 + 5)\n= 27 * 40 + 27 * 5\n= 1080 + 135\n= 1215\n\nSo 27 * 450 = 12,150\n\nTherefore:\n27 * 453 = 12,150 + 81 = 12,231",
            "signature": "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"
        },
        {
            "type": "text",
            "text": "27 × 453 = 12,231"
        }
    ],
    "stop_reason": "end_turn",
    "stop_sequence": null,
    "usage": {
        "input_tokens": 45,
        "cache_creation_input_tokens": 0,
        "cache_read_input_tokens": 0,
        "cache_creation": {
            "ephemeral_5m_input_tokens": 0,
            "ephemeral_1h_input_tokens": 0
        },
        "output_tokens": 202,
        "service_tier": "standard"
    }
}