hermes-agent/website/docs/user-guide/messaging/simplex.md
Brian D. Evans 514a4eff36
docs(simplex): remove broken Docker install command (#26974) (#26975)
* docs(simplex): remove broken Docker install command (#26974)

The "Or Docker" snippet pointed at `simplexchat/simplex-chat`, which is
not a published Docker Hub image. Users following the docs hit:

  docker: Error response from daemon: pull access denied for
  simplexchat/simplex-chat, repository does not exist or may require
  'docker login'.

The SimpleX Chat project only publishes Docker images for its server
components (smp-server, xftp-server) — the chat CLI is distributed as a
binary release. Drop the broken `docker run` line and keep the verified
binary-download path, with a note pointing users to the upstream
Dockerfile if they want to build a container themselves.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(simplex): drop misleading "Dockerfile" link text

Copilot review flagged that the link text claimed "Dockerfile in the
upstream repo" but the URL pointed at the repository root, not a
specific Dockerfile path. Reword to "build from source from the
simplex-chat repository" so the link text and target match.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: briandevans <252620095+briandevans@users.noreply.github.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-23 16:32:20 -07:00

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Markdown

# SimpleX Chat
[SimpleX Chat](https://simplex.chat/) is a private, decentralised messaging platform where users own their contacts and groups. Unlike other platforms, SimpleX assigns no persistent user IDs — every contact is identified by an opaque internal ID generated at connection time, which makes it one of the most private messengers available.
## Prerequisites
- The **simplex-chat** CLI installed and running as a daemon
- Python package **websockets** (`pip install websockets`)
## Install simplex-chat
Download the latest release from the [simplex-chat GitHub releases](https://github.com/simplex-chat/simplex-chat/releases) page:
```bash
# Linux / macOS binary
curl -L https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-chat-ubuntu-22_04-x86-64 -o simplex-chat
chmod +x simplex-chat
```
The SimpleX Chat project does not publish a prebuilt Docker image for the chat client; to run it under Docker, build from source from the [simplex-chat repository](https://github.com/simplex-chat/simplex-chat).
## Start the daemon
```bash
simplex-chat -p 5225
```
The daemon listens on WebSocket at `ws://127.0.0.1:5225` by default.
## Configure Hermes
### Via setup wizard
```bash
hermes setup gateway
```
Select **SimpleX Chat** and follow the prompts.
### Via environment variables
Add these to `~/.hermes/.env`:
```
SIMPLEX_WS_URL=ws://127.0.0.1:5225
SIMPLEX_ALLOWED_USERS=<contact-id-1>,<contact-id-2>
SIMPLEX_HOME_CHANNEL=<contact-id>
```
| Variable | Required | Description |
|---|---|---|
| `SIMPLEX_WS_URL` | Yes | WebSocket URL of the simplex-chat daemon |
| `SIMPLEX_ALLOWED_USERS` | Recommended | Comma-separated contact IDs allowed to use the agent |
| `SIMPLEX_ALLOW_ALL_USERS` | Optional | Set `true` to allow every contact (use carefully) |
| `SIMPLEX_HOME_CHANNEL` | Optional | Default contact ID for cron job delivery |
| `SIMPLEX_HOME_CHANNEL_NAME` | Optional | Human label for the home channel |
## Find your contact ID
After starting the daemon, open a conversation with your agent contact. The contact ID will appear in session logs or via `hermes send_message action=list`.
## Authorization
By default **all contacts are denied**. You must either:
1. Set `SIMPLEX_ALLOWED_USERS` to a comma-separated list of contact IDs, or
2. Use **DM pairing** — send any message to the bot and it will reply with a pairing code. Enter that code via `hermes gateway pair`.
## Using SimpleX with cron jobs
```python
cronjob(
action="create",
schedule="every 1h",
deliver="simplex", # uses SIMPLEX_HOME_CHANNEL
prompt="Check for alerts and summarise."
)
```
Or target a specific contact:
```python
send_message(target="simplex:<contact-id>", message="Done!")
```
## Privacy notes
- SimpleX never reveals phone numbers or email addresses — contacts use opaque IDs
- The connection between Hermes and the daemon is local WebSocket (`ws://127.0.0.1:5225`) — no data leaves your machine
- Messages are end-to-end encrypted by the SimpleX protocol before reaching the daemon
## Troubleshooting
**"Cannot reach daemon"** — Ensure `simplex-chat -p 5225` is running and the port matches `SIMPLEX_WS_URL`.
**"websockets not installed"** — Run `pip install websockets`.
**Messages not received** — Check that the contact's ID is in `SIMPLEX_ALLOWED_USERS` or approve them via DM pairing.