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Dev tools · April 4, 2026

Klefki Keys

We deal with the bills. You build the future.

What it does

Building an API product is hard—billing shouldn’t be. Klefki Keys lets you add usage-based pricing, prepaid credits, and access control to your API in minutes, for free and without building complex billing infrastructure. Skip metering, billing logic, and credit systems. Focus on your product instead. And unlike others, we take zero commission—you keep 100% of your revenue. Simple to integrate. Built for developers. Documentation: https://aryankohli88.github.io/KlefkiKeysDocumentaion.html

Does the same job

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  • IM
    I made a credit system API2024 · creduse.com · ▲42

    I'm a solopreneur and I made it very easy to integrate a credit system into your apps and games using Creduse. I built Creduse because more and more users want pay-as-you-go models, and founders need new ways to increase user engagement or nicely limit cost-intensive features (see AI). Creduse is built by a developer for developers. I hope it will help as many startups as possible. Feedback are very much appreciated. Francesco

  • AA
    APIs and SDKs to help developers build pricing plans faster2022 · docs.stigg.io · ▲44

    Hello HN Community, As an ex-founder of a developers-for-hire agency, I was fortunate to build for many different software organizations around the world, and partner with the most talented product teams. One of the things I learned by coding was how painful it is to build & maintain pricing in SaaS. The pricing structure and logic always end up being coupled with the core application code and the billing platform. The product catalog is typically managed in spreadsheets, by the product & monetization teams, while all the possible package types, including the legacy ones, are typically…

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