Count Anthropic Messages input tokens

curl --request POST \
  --url https://api.example.com/v1/messages/count_tokens \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "messages": [
    {
      "content": "<string>"
    }
  ],
  "system": "<string>",
  "tools": [
    {}
  ],
  "tool_choice": {
    "name": "<string>",
    "disable_parallel_tool_use": true
  },
  "thinking": {
    "budget_tokens": 499995
  },
  "output_config": {
    "format": {
      "type": "<string>",
      "schema": {}
    }
  },
  "context_management": {
    "edits": [
      {
        "type": "<string>",
        "keep": "<string>"
      }
    ]
  }
}
'

import requests

url = "https://api.example.com/v1/messages/count_tokens"

payload = {
    "model": "<string>",
    "messages": [{ "content": "<string>" }],
    "system": "<string>",
    "tools": [{}],
    "tool_choice": {
        "name": "<string>",
        "disable_parallel_tool_use": True
    },
    "thinking": { "budget_tokens": 499995 },
    "output_config": { "format": {
            "type": "<string>",
            "schema": {}
        } },
    "context_management": { "edits": [
            {
                "type": "<string>",
                "keep": "<string>"
            }
        ] }
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: '<string>',
    messages: [{content: '<string>'}],
    system: '<string>',
    tools: [{}],
    tool_choice: {name: '<string>', disable_parallel_tool_use: true},
    thinking: {budget_tokens: 499995},
    output_config: {format: {type: '<string>', schema: {}}},
    context_management: {edits: [{type: '<string>', keep: '<string>'}]}
  })
};

fetch('https://api.example.com/v1/messages/count_tokens', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "input_tokens": 1
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "request_id": "<string>",
    "param": "<string>",
    "doc_url": "<string>"
  }
}