How best to authenticate between tyk and your upstream API

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My upstream API should only accept traffic from Tyk and no other service. What is the best and most performant way to authenticate Tyk with my upstream API?

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Hello @Jonathan_Gurwitz and welcome to the Tyk Forums.

The industry standard is to use Mutual TLS. Here is a good article that describes what mTLS is. And here are the Tyk docs on how to setup mTLS between the gateway and your upstream.

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Thanks Zaid. Much appreciated. This is exactly what I needed.

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