The best alternatives to Tunzal are Pipe.Slack, API Castor, and Auth0. If these 3 options don't work for you, we've listed a few more alternatives below.
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Hurree— The smarter, simpler way to analyze your data
Whether you’re a developer looking to innovate or a security professional looking to mitigate, we make identity work for everyone. Auth0 is the solution you need for web, mobile, IoT, and internal applications. Loved by developers and trusted by enterprises.