# Chat

Earendil has a minimal embedded chat tool for talking to your **immediate neighbors** in the Earendil network. You can use it to negotiate connection prices with your neighbors.

## GUI

In the "Chat" tab of the Earendil GUI, you can chat with any of your direct neighbors by selecting their fingerprint in the menu on the left side of the screen:

![](/files/tERVcVm7hWaJ4eXjlZqP)

## CLI

To chat on the command line:

```!bash
earendil control [--connect control_listen_addr] chat <COMMAND>
```

where `<COMMAND>` is one of:

* `list` - prints a summary of all your conversations
* `start <neighbor-prefix>` - starts an interactive chat session with a neighbor whose fingerprint starts with `<neighbor-prefix>`. This will fail if `<neighbor-prefix>` matches more than one neighbor (in that case, use a longer prefix).

Some examples:

```!bash
$ earendil control chat start zpy
<starting chat with zpyzw3hpax9fnwww08h9bhr866qvh6wn>
<- hey alice! [2024-01-10 19:59:55]
-> hey bob! [2024-01-10 19:59:58]
<- how's the weather? [2024-01-10 20:00:04]
sunny!
-> sunny! [2024-01-10 20:01:15]

```

```!bash
$ earendil control chat list
+------------------------------------+-------------------+-----------------------------------+
| Neighbor                           | # of Messages     | Last chat                         |
+------------------------------------+-------------------+-----------------------------------+
| 4b7a641b77c2d6ceb8b3fecec2b2978... | 4                 | sunny! [2024-01-10 15:29:05]
+------------------------------------+-------------------+-----------------------------------+
```


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# 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.earendil.network/getting-started/chat.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.