> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.pinnacle.sh/v-2/quickstart/sms/ruby/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.pinnacle.sh/_mcp/server.

# Ruby SDK Quickstart

> Learn how to send and receive your first SMS

The Ruby SDK provides convenient tooling for sending and receiving SMS messages. You can also access these features through the REST API (see the [API reference](/api-reference/messages/send-sms) for more details).

#### [Sending SMS Messages](ruby/send)

#### [Receiving SMS Messages](ruby/receive)

> One API for RCS, iMessage, MMS, and SMS. Build, test, and scale every channel — send your first message in minutes, not weeks.

## Docs

- [Sending SMS Messages](https://docs.pinnacle.sh/quickstart/sms/ruby/send.md): Sending your first SMS with Pinnacle's Ruby SDK
- [Receiving SMS Messages](https://docs.pinnacle.sh/quickstart/sms/ruby/receive.md): Receiving your first SMS with Pinnacle's Ruby SDK