<ul data-eligibleForWebStory="true">Polar, a payments infrastructure company based in Stockholm, has raised €8.68M in seed funding led by Accel.Notable angel investors who participated in the funding round include Guillermo Rauch, Tobi Lütke, and others.Accel, known for backing successful companies like Slack and Spotify, led the round, recognizing Polar's potential in the developer community.Polar, founded by Birk Jernström in 2022, simplifies billing implementation for AI-native SaaS businesses.Their open-source Merchant of Record solution allows for quick billing integration with just six lines of code.The company boasts a growing customer base including Bolt AI, Midday, and more.The funding will support Polar in expanding globally, developing new billing tools, and strengthening developer relationships.Polar aims to assist developers in monetizing their software efficiently, handling billing and international sales taxes.With over 18,000 customers in 100+ countries, Polar experienced significant growth since its billing platform launch in September 2024.The company has seen a 120% month-on-month growth in online sales over the last six months.Polar's focus on open source and developer-centered products has attracted a community of 16,000 developers using its platform.The platform offers automated SaaS entitlements and integrates with tools like Framer, Raycast, and Zapier for upselling opportunities.Overall, Polar aims to simplify billing complexities for developers, enabling them to focus on product development and business growth.