> For the complete documentation index, see [llms.txt](https://docs.usewinter.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.usewinter.com/marketplace-integrations.md).

# Marketplace integrations

- [Intro](https://docs.usewinter.com/marketplace-integrations/intro.md)
- [Implementation strategy](https://docs.usewinter.com/marketplace-integrations/implementation-strategy.md)
- [Directly with smart contracts](https://docs.usewinter.com/marketplace-integrations/implementation-strategy/directly-with-smart-contracts.md): Integrate with NFT marketplace smart contracts directly
- [Aggregation APIs](https://docs.usewinter.com/marketplace-integrations/implementation-strategy/aggregation-apis.md)
- [APIs to build a transaction](https://docs.usewinter.com/marketplace-integrations/implementation-strategy/apis-to-build-a-transaction.md)
- [Build and submit a transaction](https://docs.usewinter.com/marketplace-integrations/implementation-strategy/build-and-submit-a-transaction.md)