# Introduction

- [Overview](/docs/introduction/readme.md)
- [Core concepts](/docs/introduction/core-concepts.md)
- [Transparency](/docs/introduction/core-concepts/transparency.md)
- [Non-Custodial](/docs/introduction/core-concepts/non-custodial.md)
- [Direct payments](/docs/introduction/core-concepts/direct-payments.md)
- [Lowest Fees](/docs/introduction/core-concepts/lowest-fees.md)
- [Protocol](/docs/introduction/protocol.md)
- [Security](/docs/introduction/security.md)
- [Collected data](/docs/introduction/security/collected-data.md)