---
title: "Discussion on \"Claude Code and the Anthropic SDKs Behind a Custom Base URL: Setup, Checks, and Gotchas\" | Hashnode"
description: "Discussion on \"Claude Code and the Anthropic SDKs Behind a Custom Base URL: Setup, Checks, and Gotchas\". ANTHROPIC_BASE_URL, credential headers, a no-key echo server, and why the model field is not proof"
url: "https://hashnode.com/posts/claude-code-and-the-anthropic-sdks-behind-a-custom-base-url-setup-checks-and-gotchas/6af405f29868be71ba1a9b7f"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [Claude Code and the Anthropic SDKs Behind a Custom Base URL: Setup, Checks, and Gotchas](https://wokey.hashnode.dev/claude-code-and-the-anthropic-sdks-behind-a-custom-base-url-setup-checks-and-gotchas?utm_source=hashnode&utm_medium=feed)

ANTHROPIC\_BASE\_URL, credential headers, a no-key echo server, and why the model field is not proof

1h ago · 10 min read · wokey.hashnode.dev  
Read the article

-   [#claude-code](https://hashnode.com/tag/claude-code)
-   [#anthropic](https://hashnode.com/tag/anthropic)
-   [#llm](https://hashnode.com/tag/llm)
-   [#api](https://hashnode.com/tag/api)

## Written by

[Wokey](https://hashnode.com/@wokey)

@wokey

  
[View profile](https://hashnode.com/@wokey)

Low-cost Claude & GPT API with offline-verifiable responses.

## Responses

Markdown supported · ⌘↵ to post

No responses yet.