# Launchpad > This is the documentation for Canonical Launchpad, an open source platform that > enables open source developers to collaborate with others to build and publish open > source software. 2026 CC-BY-SA, Canonical Ltd. ## Pages in this subsection - [Hardware-bound API tokens](https://ubuntu.com/docs/launchpad/developer/reference/hardware-bound-api-tokens/index.html.md): Reference for Launchpad's hardware-bound API tokens, including the exchange endpoints, token model, grant storage, and error types. ## Optional - [Top-level llms.txt](https://ubuntu.com/docs/launchpad/llms.txt): Complete documentation index.