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[beta] Anthropic Messages Token Counting

Count Tokens

Count tokens for Anthropic Messages API format.

This endpoint follows the Anthropic Messages API token counting specification. It accepts the same parameters as the /v1/messages endpoint but returns token counts instead of generating a response.

Example usage:

curl -X POST "http://localhost:4000/v1/messages/count_tokens?beta=true"       -H "Content-Type: application/json"       -H "Authorization: Bearer your-key"       -d '{
    "model": "claude-3-sonnet-20240229",
    "messages": [{"role": "user", "content": "Hello Claude!"}]
  }'

Returns: {"input_tokens": <number>}

post/v1/messages/count_tokens

Response

Successful Response

{"stackTrail":"paths:/v1/messages/count_tokens:post:responses:200:content:application/json:schema","oasType":"schema","type":"unknown"}

Changes

Changed in 10 of the 42 revisions of this API.20

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  • c357baf422ab2See the full diff
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      api tag anthropic_passthrough added

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  • 082b5fabd9092See the full diff
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      api tag [beta] Anthropic Messages Token Counting added

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      api tag anthropic_passthrough removed

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    This revision also has 5 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

  • f9848f60f12d2See the full diff
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      api tag anthropic_passthrough added

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      api tag [beta] Anthropic Messages Token Counting removed

      api-tag-removed

    This revision also has 21 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

  • 89805a9f84ad2See the full diff
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      api tag [beta] Anthropic Messages Token Counting added

      api-tag-added

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      api tag anthropic_passthrough removed

      api-tag-removed

    This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

  • 4a06c3148b6c2See the full diff
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      api tag anthropic_passthrough added

      api-tag-added

    • ○

      api tag [beta] Anthropic Messages Token Counting removed

      api-tag-removed

    This revision also has 19 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog