hermes-agent/website/docs/user-guide/messaging/simplex.md
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Full-corpus correctness audit of the hand-written docs against the codebase,
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Correctness (verified against COMMAND_REGISTRY / PROVIDER_REGISTRY / TOOLSETS /
tools.registry / DEFAULT_CONFIG / source):
- reference: add /version slash command, context_engine toolset, openai-api +
  novita-ai to --provider; fix tool count 64->71; model_catalog ttl 24->1;
  add profile describe to summary table; add real provider env vars
  (LM_API_KEY/LM_BASE_URL, KIMI_CODING_API_KEY, ALIBABA_CODING_PLAN_*,
  ANTHROPIC_BASE_URL, COPILOT_API_BASE_URL); fix faq "Windows: not natively".
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  language list 8->16; aux slots 8->11; docker separate-dashboard claim;
  _SECURITY_ARGS -> _BASE_SECURITY_ARGS.
- features: curator prune_builtins truth + missing CLI verbs; codex-runtime aux
  keys (context_compression->compression, vision_detect->vision); kanban
  terminate endpoint + promote/reassign/schedule/diagnostics/edit + per-profile
  cap; mcp mTLS (client_cert/client_key); built-in-plugins nemo_relay +
  teams_pipeline; api-server run approval endpoint; computer-use frontmatter.
- features N-Z + integrations: StepFun step-3-mini->step-3.5-flash; web-search
  backends 4->8; tool-gateway image-model IDs; voice-mode STT/TTS enums; remove
  phantom `rl` toolset; nous-portal status subcommand.
- messaging: WeCom typing/streaming cols; telegram transport default edit->auto;
  sms host default; simplex/ntfy `gateway setup` + pairing approve; line
  smart-chunking; matrix MATRIX_DM_AUTO_THREAD.
- developer-guide: build-a-plugin code examples (register_command signature,
  ContextEngine/ImageGenProvider/MemoryProvider ABCs); model-provider-plugin
  entry-point group hermes.plugins->hermes_agent.plugins; PLUGIN.yaml->plugin.yaml;
  agent-loop stale LOC; web-search-provider phantom crawl().

PR coverage (2-week window, 149 feat PRs):
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  + archive, multi-profile concurrent + cross-profile @session, composer history,
  Providers pane, per-profile remote hosts, Grok OAuth, aux-pin warning).
- configuration.md gateway-streaming default corrected to per-platform.
- tool-gateway.md free tool pool entitlement note.

Media:
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  (captured from a clean profile, no secrets/personalization).
2026-06-07 01:39:06 -07:00

3.4 KiB

SimpleX Chat

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.

Run hermes gateway setup and pick SimpleX for a guided walk-through.

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 page:

# 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.

Start the daemon

simplex-chat -p 5225

The daemon listens on WebSocket at ws://127.0.0.1:5225 by default.

Configure Hermes

Via setup wizard

hermes gateway setup

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 pairing approve simplex <CODE>.

Using SimpleX with cron jobs

cronjob(
    action="create",
    schedule="every 1h",
    deliver="simplex",          # uses SIMPLEX_HOME_CHANNEL
    prompt="Check for alerts and summarise."
)

Or target a specific contact:

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.