# Announcing MCP Authentication: secure your MCP servers with PropelAuth

[Letter AI](https://www.letter.ai/?ref=propelauth.mymidnight.blog) is a revenue and sales enablement platform powered by AI, empowering sales and customer success teams to perform at the top of their game with personalized, up-to-date training and collateral. Teams using their product see a 30% increase in win rates!

From the start, they knew they wanted to use an outsourced authentication provider so they could focus on their core business: helping their customers win. Unfortunately, the first provider they chose wasn’t ideal:

> “\[Working with the auth provider\] took up so much of our time, I wondered if we were saving any time compared to building an auth provider from scratch.”  
> -Armen Forget, [Letter AI](https://www.letter.ai/?ref=propelauth.mymidnight.blog) Co-Founder & CTO

Wasting time wasn't acceptable, but building from scratch wasn't an option either:

> “As an early-stage startup, we need to ship lightning fast. That is one of our biggest advantages. We can't do that if we're building everything from scratch.”  
> -Armen Forget, [Letter AI](https://www.letter.ai/?ref=propelauth.mymidnight.blog) Co-Founder & CTO

So, they embarked on a hunt for a new auth provider, evaluating many of the solutions on the market. Unfortunately, they found that many of them didn’t fit their needs - either they were too complex or they lacked necessary features.

After asking for recommendations from their fellow [Y Combinator](https://www.ycombinator.com/?ref=propelauth.mymidnight.blog) batchmates, they heard about PropelAuth and decided to give it a go.

They got up and running in a few hours and then reached out to PropelAuth with some questions and were impressed at the responsiveness:

> “Every time we got stuck, we reached out to PropelAuth and a solution was always presented very quickly. So far we haven't encountered any issues that were not solved right away.”  
> -Armen Forget, [Letter AI](https://www.letter.ai/?ref=propelauth.mymidnight.blog) Co-Founder & CTO

Since their initial integration, the team at Letter AI have been able to focus on what they do best: empowering sales and customer success teams to win more business, and not worry about things they don't need to, like authentication and user management.

> "Because PropelAuth is so reliable, I never have to think about problems with user management.  It just works. "  
> -Armen Forget, [Letter AI](https://www.letter.ai/?ref=propelauth.mymidnight.blog) Co-Founder & CTO

To learn more about how Letter AI can help your sales and customer success team succeed, check out [their website.](https://www.letter.ai/?ref=propelauth.mymidnight.blog)

To learn more about how PropelAuth can help you launch and grow your startup by enabling you to focus on your core business, check out [our website.](/content/?ref=propelauth.mymidnight.blog)