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

# Anthropic

> Connect Anthropic as an AI Gateway provider

An Anthropic provider forwards Messages requests to Anthropic's API. Attach it to an AI Gateway resource when you want Claude Code, Claude Desktop, OpenCode, OpenClaw, or any other Anthropic-compatible client to use your org's Anthropic key.

See [AI Providers](/manage/ai/providers/overview) if you haven't created a provider before. Field options are in [Provider Configuration](/manage/ai/providers/configuration).

## Defaults

| Setting      | Value                                |
| ------------ | ------------------------------------ |
| Upstream URL | `https://api.anthropic.com`          |
| Auth type    | `x-api-key`                          |
| Capabilities | Anthropic Messages, Anthropic Models |

Anthropic Models (`GET /v1/models`) is answered from this provider's allow and block lists. See [Capabilities](/manage/ai/providers/configuration#capabilities).

## Configure

1. Sidebar → **AI Gateway** → **Providers** → **Create**.
2. Set **Provider Type** to **Anthropic**. Name, capabilities, upstream URL, and auth type fill in from the defaults above.
3. Paste your Anthropic API key.
4. Set **Allow** and **Block** lists. `*` allows every model key; `claude-*` is a typical narrower pattern.
5. Save, then attach the provider to an [AI Gateway resource](/manage/ai/overview).

Leave the upstream URL as the default unless you are pointing at a compatible Anthropic-style base URL.

<Tip>
  Clients can send `anthropic-version` themselves. You can also set it as a [custom header](/manage/ai/providers/configuration#headers-and-tls) on the provider (`anthropic-version: 2023-06-01`). A header set on the provider is always sent upstream and overrides the same header from the client.
</Tip>

## Clients

| Client         | Guide                                                         |
| -------------- | ------------------------------------------------------------- |
| Claude Code    | [Setup guide](/manage/ai/configure-ai-clients/claude)         |
| Claude Desktop | [Setup guide](/manage/ai/configure-ai-clients/claude-desktop) |
| OpenCode       | [Setup guide](/manage/ai/configure-ai-clients/opencode)       |
| OpenClaw       | [Setup guide](/manage/ai/configure-ai-clients/openclaw)       |