# Getting Started

- [What is Cosine?](/faqs/getting-started/what-is-cosine.md): Cosine is an AI software engineering agent that integrates seamlessly into your team’s workflow. It retrieves context, plans solutions, writes and tests code, and collaborates in real time.
- [What problems does Cosine solve for engineering teams?](/faqs/getting-started/what-problems-does-cosine-solve-for-engineering-teams.md): Cosine helps engineering teams move faster by handling repetitive tasks - from bug fixes and migrations to documentation - so developers can focus on high-impact work.
- [How does Cosine work?](/faqs/getting-started/how-does-cosine-work.md)
- [What are Cosine’s core features?](/faqs/getting-started/what-are-cosines-core-features.md): Cosine’s core features are designed to make it a true autonomous software engineer — capable of planning, coding, testing, documenting, and learning within your existing workflows.
- [Which programming languages, frameworks, and stacks are supported?](/faqs/getting-started/which-programming-languages-frameworks-and-stacks-are-supported.md): Cosine supports all major programming languages and frameworks — including Python, Java, TypeScript, Go, C#, React, Django, and Spring — with optional fine-tuning for legacy or custom stacks.
- [Which IDEs and hosts does Cosine support?](/faqs/getting-started/which-ides-and-hosts-does-cosine-support.md): Cosine integrates with GitHub, GitLab, Bitbucket, VS Code, JetBrains, and CLI — fitting seamlessly into your existing engineering workflow.
- [Who uses Cosine?](/faqs/getting-started/who-uses-cosine.md): Cosine is used by engineering teams across finance, defence, SaaS, and manufacturing — helping organisations modernise legacy systems, accelerate delivery, and maintain secure, high-quality codebases.
- [Finding Invoices](/faqs/getting-started/finding-invoices.md): Need a copy of your invoice for monthly billing? Here's how to quickly locate and download your billing receipts through Cosine.