Question: Is there a library that allows me to integrate web2-level convenience into my web3 product, such as email and social media sign-in options?

If you want to add web2-level convenience to your web3 product, Privy is a good choice. It's got a full onboarding experience with email and social sign-in, secure authentication flows, and progressive onboarding. Privy also has embedded wallets and reliable connectors for user management with analytics. The library works with Wagmi and Ethers and has a tiered pricing system, including a free tier.

Another good option is Clerk, a full-stack user management platform. Clerk supports multifactor authentication, social sign-on, and email and SMS one-time passcodes, so it can handle a variety of authentication situations. It also integrates with common frameworks and tools and has features for multi-tenancy, like custom roles and permissions. Clerk has a free tier for up to 10,000 monthly active users and 100 monthly active orgs.

For social media integration, Stream is a fast and scalable API for building social networks and chat apps. It includes features like real-time activity feeds, chat messaging, and video & audio APIs, all designed to ensure scalability and reliability. The platform has four pricing tiers, including a free tier, and has a lot of documentation and tutorials to help you get started.

Last, TalkJS is a full-featured chat API and SDK platform. It can handle a variety of chat use cases, including 1-on-1 and group chats, AI chatbots and in-app comments. With features like pre-built UI, customizable design and multi-platform support, TalkJS can be a good fit for your web3 product if you want to increase user engagement. Pricing starts at $279 per month for up to 10,000 MAU.