> For the complete documentation index, see [llms.txt](https://docs.thornode.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.thornode.io/infrastructure/thorstreamer-grpc/api-reference.md).

# API Reference

Complete reference for ThorStreamer gRPC services, message types, and supported DeFi program filters.

* **Protocol**: gRPC (HTTP/2) with Protocol Buffers
* **Authentication**: authorization: `<your_token>` in metadata