计算消息令牌数

POST

https://api.anthropic.com/v1/messages/count_tokens

Count the number of tokens in a Message.

The Token Count API can be used to count the number of tokens in a Message, including tools, images, and documents, without creating it.

Learn more about token counting in our user guide

请求示例

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.anthropic.com/v1/messages/count_tokens' \
--header 'x-api-key: ' \
--header 'anthropic-version: 2023-06-01' \
--header 'content-type: application/json' \
--data-raw '{
    "model": "claude-3-5-sonnet-20241022",
    "messages": [
        {"role": "user", "content": "Hello, world"}
    ]
}'

响应示例

200 - 成功示例

{
  "input_tokens": 2095
}

请求参数

Header 参数

Body 参数application/json

示例

返回响应

🟢200成功

application/json

Body

🟠400请求有误

修改于 2025-02-25 08:57:48

消息

列出模型