# RPC Call

## Connecting to the Messaging Layer

To interact with the Messaging Layer, you have two options: connect to DePHY’s public relay URL or deploy a local instance. Choose based on your needs—public for simplicity, local for development or control.

### 1. Use DePHY’s Relay URL

PRC Endpoints can be found here:

{% content-ref url="/pages/jlbmVPKD8ZIIFQrbV3vf" %}
[RPC Endpoints](/components/messaging-layer/rpc-endpoints.md)
{% endcontent-ref %}

### 2. Local Deployment

* **Prerequisites**:
  * Docker: Ensure [Docker](https://docs.docker.com/get-docker/) is installed and running on your system to manage the messaging network services.
* **Steps**:
  1. Clone the repository:

     ```bash
     git clone https://github.com/dephy-io/dephy-messaging-network-self-hosted.git
     cd dephy-messaging-network-self-hosted/dephy-messaging-network
     ```
  2. Launch the messaging layer using Docker Compose:

     ```bash
     docker compose up --pull always
     ```

This deploys a self-hosted Nostr-based messaging network locally, ready to handle event subscriptions and publications for your DePHY applications. By default, it will be accessible at `wss://localhost:8080`.

## Recommended Messaging Layer Client

Below are recommended libraries for interacting with the Nostr protocol across multiple programming languages, with hyperlinks to their official repositories or documentation.

### **Rust**

* [nostr-sdk](https://github.com/rust-nostr/nostr/tree/master/crates/nostr-sdk)
* [nostr](https://github.com/rust-nostr/nostr/tree/master/crates/nostr)

### **JavaScript/TypeScript**

* [nostr-tools](https://github.com/nbd-wtf/nostr-tools)
* [nostr-relay](https://github.com/fiatjaf/nostr-relay)

### **Python**

* [pynostr](https://github.com/fernandoporazi/pynostr)
* [nostr-py](https://github.com/monty888/nostr-py)

### **Go**

* [go-nostr](https://github.com/nbd-wtf/go-nostr)

### **Kotlin**

* [nostr-kotlin](https://github.com/derkan/nostr-kotlin)

### **Swift**

* [NostrKit](https://github.com/lzich/NostrKit)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.dephy.io/components/messaging-layer/rpc-call.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.