xstarrystar

xstarrystar / claude-client-attestation

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Reverse-engineering Anthropic's Claude Code Native Client attestation hashing algorithm

11
0
69% credibility
Found Apr 05, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

This project offers a TypeScript function that computes a checksum for request bodies intended for Anthropic's Claude APIs and replaces a placeholder to create an attestation token.

How It Works

1
🔍 Discover the tool

You hear about a helpful way to securely chat with an advanced AI assistant called Claude.

2
📖 Learn how it works

You read that this simple tool adds a special proof to your messages so the AI knows they are genuine and unchanged.

3
✏️ Prepare your message

You write your question or instruction to the AI, including a blank spot marked for the security proof.

4
✨ Add the security proof

You use the tool to automatically fill in the blank with a unique code that verifies your message is safe and real.

5
📤 Send to the AI

You share your prepared message with the Claude AI service.

✅ Get trusted response

The AI confidently replies, knowing your message is authentic and secure, making your conversation smooth and reliable.

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AI-Generated Review

What is claude-client-attestation?

This TypeScript library reverse-engineers Anthropic's Claude Code Native Client attestation hashing algorithm, letting you generate integrity tokens for API request bodies. Feed it a string with the "cch=00000" placeholder, and it patches in a valid 5-digit hex token computed via XXH64 hashing with Anthropic's seed. It solves the problem of mimicking official client attestations in custom tools, like for research into anthropic reverse engineering or building alternative clients.

Why is it gaining traction?

In a sea of reverse engineering toolkits on GitHub—from firmware reverse engineering github repos to game reverse engineering github projects—this stands out for targeting Anthropic's proprietary algorithm with a dead-simple patching API. Developers dig the zero-setup integration for TypeScript/Node.js apps, bypassing black-box API limits without native binaries. The educational angle hooks tinkerers exploring reverse engineering challenge github puzzles or unity reverse engineering github workflows.

Who should use this?

API integrators crafting custom Claude clients who need request body attestation without the official native app. Reverse engineering guide github followers dissecting proprietary protocols, or security researchers probing nsa reverse engineering tool github-style hashing in flutter reverse engineering github or reverse engineering github io demos. Ideal for TypeScript devs handling Anthropic requests in serverless functions or desktop tools.

Verdict

Try it for proofs-of-concept if you're deep into anthropic reverse engineering or reverse engineering toolkit github experiments, but its 11 stars and basic README signal early-stage maturity—credibility score of 0.699999988079071% means verify outputs rigorously. Pair with tests before production.

(178 words)

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