> ## Documentation Index
> Fetch the complete documentation index at: https://docs.portkey.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Count Tokens

Portkey supports the [token counting endpoint from anthropic](https://docs.anthropic.com/en/docs/build-with-claude/token-counting) across vertex-ai, bedrock and anthropic in the same format. This allows use to use claude code and any other tooling with the same API signature across providers.

# Examples

```py Python theme={"system"}
import anthropic

client = anthropic.Anthropic(
    api_key="dummy", # we will use portkey's provider slug
    default_headers={"x-portkey-api-key": "YOUR_PORTKEY_API_KEY"},
    base_url="https://api.portkey.ai"
)

response = client.messages.count_tokens(
    model="@your-provider-slug/your-model-name",
    system="You are a scientist",
    messages=[{
        "role": "user",
        "content": "Hello, Claude"
    }],
)

print(response.json())
```

```ts TypeScript theme={"system"}
import Anthropic from '@anthropic-ai/sdk';

const client = new Anthropic({
  apiKey: 'dummy', // we will use portkey's provider slug
  baseURL: "https://api.portkey.ai/v1",
  defaultHeaders: { "x-portkey-api-key": "YOUR_PORTKEY_API_KEY" }
});

const response = await client.messages.countTokens({
  model: '@your-provider-slug/your-model-name',
  system: 'You are a scientist',
  messages: [{
    role: 'user',
    content: 'Hello, Claude'
  }]
});

console.log(response);
```

```sh cURL theme={"system"}
curl https://api.portkey.ai/v1/messages/count_tokens \
    --header "x-portkey-api-key: $PORTKEY_API_KEY" \
    --header "content-type: application/json" \
    --data '{
      "model": "@your-provider-slug/your-model-name",
      "system": "You are a scientist",
      "messages": [{
        "role": "user",
        "content": "Hello, Claude"
      }]
    }'
```

***

> [card] [Portkey is now PRISMA AIRS AI Gateway. See it in action.](https://www.paloaltonetworks.in/ai-security/ai-gateway?utm_source=portkey\&utm_medium=referral\&utm_campaign=prisma_airs\&utm_content=docs_nav#contact)
>
> Contact Us


## Related topics

- [AWS Bedrock](https://docs.portkey.ai/docs/integrations/llms/bedrock/aws-bedrock.md)
- [Google Vertex AI](https://docs.portkey.ai/docs/integrations/llms/vertex-ai.md)
- [Embeddings](https://docs.portkey.ai/docs/integrations/llms/openai/embeddings.md)
- [Enterprise Gateway](https://docs.portkey.ai/docs/changelog/enterprise.md)
- [Start Hooks](https://docs.portkey.ai/docs/product/guardrails/start-hooks.md)


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