Backmesh: Secure LLM API Key Management

Backmesh

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Type:
Open Source Projects
Last Updated:
2025/12/18
Description:
Backmesh is an open-source backend that secures LLM API keys with encryption, JWT authentication, and rate limits to prevent abuse.
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LLM API security
JWT authentication
rate limiting
API access control
open-source backend

Overview of Backmesh

Backmesh: Secure LLM API Key Management

What is Backmesh?

Backmesh is an open-source, battle-tested backend designed to protect your LLM (Large Language Model) API keys. It uses military-grade encryption to secure your keys and acts as an API Gatekeeper, ensuring that your application can safely call the LLM API without exposing sensitive information.

Key Features of Backmesh

JWT Authentication

Backmesh verifies requests using JWTs (JSON Web Tokens) from your app's authentication provider. This ensures that only authenticated users can access the LLM API via Backmesh, adding an extra layer of security.

Rate Limits per User

To prevent abuse and excessive usage, Backmesh allows you to configure per-user rate limits. For example, you can set a limit of no more than 5 OpenAI API calls per user per hour, helping you manage costs and prevent misuse.

API Resource Access Control

Sensitive API resources like Files and Threads are protected so that only the users who create them can continue to access them. This granular control ensures that your data remains secure and accessible only to authorized users.

LLM User Analytics

Backmesh instruments all LLM API calls, providing you with valuable insights into usage patterns. This data can help you reduce costs, improve user satisfaction, and optimize your AI applications.

How Does Backmesh Work?

Backmesh acts as a secure intermediary between your application and the LLM API. When your app needs to make an API call, it sends a request to Backmesh, which then verifies the request using JWT authentication. If the request is valid, Backmesh forwards it to the LLM API, ensuring that your API key is never exposed to the client side.

Why Choose Backmesh?

Security

By using military-grade encryption and JWT authentication, Backmesh ensures that your LLM API keys are protected from leaks and unauthorized access. This is crucial for preventing thousands of dollars in LLM API costs due to key exposure.

Cost Management

With configurable rate limits, Backmesh helps you manage and control the usage of your LLM API, preventing abuse and reducing unnecessary costs.

User Analytics

Backmesh provides detailed analytics on LLM API usage, allowing you to identify patterns, optimize performance, and enhance user satisfaction.

Open-Source and Battle-Tested

Backmesh is open-source, meaning you can review its code, contribute to its development, and ensure its reliability. It has been thoroughly tested to handle various security scenarios and usage patterns.

Who is Backmesh For?

Backmesh is ideal for developers and organizations that:

  • Need to secure their LLM API keys in applications.
  • Want to prevent unauthorized access and abuse of their LLM APIs.
  • Require detailed analytics to optimize their AI applications.
  • Prefer open-source solutions for transparency and customization.

Getting Started with Backmesh

To get started with Backmesh, you can visit their documentation and follow the setup instructions. Backmesh offers a trial period, allowing you to test its features and ensure it meets your security and cost management needs.

Community and Support

Backmesh has an active community on GitHub and Discord, where you can find support, contribute to the project, and stay updated with the latest developments.

Conclusion

Backmesh is a powerful, open-source solution for securing LLM API keys. With its robust security features, cost management tools, and detailed analytics, it is an essential tool for any developer or organization looking to protect their AI applications and optimize their usage of LLM APIs.

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