listmonk-api supports local stdio, a loopback-only development listener, a
least-privilege stdio container, and a remote authenticated HTTPS boundary.
Provider endpoint, credential, selector, identity, and trust material are supplied
at runtime through AgentConfig; none is stored in this repository.
{
"mcpServers": {
"listmonk": {
"command": "listmonk-mcp",
"args": [],
"env": {"MCP_TOOL_MODE": "intent"}
}
}
}listmonk-mcp --transport streamable-http --host 127.0.0.1 --port 8000Do not expose this listener beyond loopback. Network deployments require direct TLS
or an explicitly trusted TLS-terminating ingress, configured authentication, exact
MCP_ALLOWED_HOSTS, and an exact trusted-proxy CIDR policy.
docker run -i --rm \
--read-only \
--cap-drop=ALL \
--security-opt=no-new-privileges \
--pids-limit=256 \
--tmpfs /tmp:rw,noexec,nosuid,nodev,size=64m \
-e TRANSPORT=stdio \
registry.example.invalid/listmonk-api@sha256:<digest> listmonk-mcpThe operator projects the selected AgentConfig profile into the process at runtime; the image remains immutable and contains no environment connection profile.
{
"mcpServers": {
"listmonk": {"url": "https://service.example.invalid/mcp"}
}
}Store the real remote URL, outbound identity reference, and TLS-profile reference in
AgentConfig, not in MCP client JSON or documentation.
This page covers running listmonk-api as a long-lived service: the transports, the
companion A2A agent, a Docker Compose stack, putting it behind a Caddy reverse proxy,
and giving it a DNS name with Technitium. To provision the Listmonk instance it
connects to, see Backing Platform.
listmonk-apiships both an MCP server (console scriptlistmonk-mcp) and an A2A agent server (console scriptlistmonk-agent). The MCP server is the typed, deterministic tool surface; the agent server is a Pydantic-AI graph that calls those tools over an MCP connection.
The transport is selected with --transport (or the TRANSPORT env var):
=== "stdio (default)"
```bash
listmonk-mcp
```
For IDE / desktop MCP clients that launch the server as a subprocess.
=== "streamable-http"
```bash
listmonk-mcp --transport streamable-http --host 0.0.0.0 --port 8000
```
A network server with a `/health` endpoint and `/mcp` route.
=== "sse"
```bash
listmonk-mcp --transport sse --host 0.0.0.0 --port 8000
```
Health check (HTTP transports):
curl -s http://localhost:8000/health # {"status":"OK"}listmonk-api is configured entirely from the environment. The required connection
set:
| Var | Default | Meaning |
|---|---|---|
LISTMONK_URL |
http://localhost:8080 |
Base URL of the Listmonk instance |
LISTMONK_TOKEN |
"" |
Bearer / API token for authorization |
LISTMONK_USERNAME |
"" |
Username for basic auth (when token is empty) |
LISTMONK_PASSWORD |
"" |
Password for basic auth (when token is empty) |
HOST |
0.0.0.0 |
Bind address (HTTP transports) |
PORT |
8000 |
Bind port (HTTP transports) |
TRANSPORT |
stdio |
stdio, streamable-http, or sse |
Each tool module can be toggled with LISTMONK_<MODULE>TOOL (for example
LISTMONK_CAMPAIGNSTOOL, LISTMONK_SUBSCRIBERSTOOL), all enabled by default. The full
set — including telemetry (OTEL) and access-governance (Eunomia / OIDC) variables — is
documented in
.env.example.
Copy it to .env and populate only what you use.
The repo ships docker/mcp.compose.yml.
It reads a sibling .env and publishes the HTTP server:
services:
listmonk-api-mcp:
image: example/listmonk-api@sha256:<digest>
container_name: listmonk-api-mcp
hostname: listmonk-api-mcp
restart: always
env_file:
- .env
environment:
- PYTHONUNBUFFERED=1
- HOST=0.0.0.0
- PORT=8000
- TRANSPORT=streamable-http
ports:
- "8000:8000"
healthcheck:
test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
interval: 30s
timeout: 10s
retries: 3cp .env.example .env # then edit LISTMONK_* values
docker compose -f docker/mcp.compose.yml up -d
docker compose -f docker/mcp.compose.yml logs -fThe agent server (console script listmonk-agent) is a Pydantic-AI graph that connects
to the MCP server and exposes an optional web interface (AG-UI) and terminal interface.
It is published on port 9004 by convention and is wired to the MCP server with
MCP_URL.
export LISTMONK_URL=https://listmonk.yourdomain.com
export LISTMONK_TOKEN=your-bearer-token
# Point the agent at a running MCP server
listmonk-agent \
--provider openai --model-id gpt-4o \
--host 0.0.0.0 --port 9004 \
--mcp-url http://listmonk-api-mcp:8000/mcpThe repo ships
docker/agent.compose.yml,
which runs the MCP server and the agent together on one network so the agent reaches the
MCP server by container name:
services:
listmonk-api-mcp:
image: example/listmonk-api@sha256:<digest>
container_name: listmonk-api-mcp
hostname: listmonk-api-mcp
restart: always
env_file:
- ../.env
environment:
- PYTHONUNBUFFERED=1
- HOST=0.0.0.0
- PORT=8000
- TRANSPORT=streamable-http
ports:
- "8000:8000"
listmonk-api-agent:
image: example/listmonk-api@sha256:<digest>
container_name: listmonk-api-agent
hostname: listmonk-api-agent
restart: always
depends_on:
- listmonk-api-mcp
env_file:
- ../.env
command: ["listmonk-agent"]
environment:
- PYTHONUNBUFFERED=1
- HOST=0.0.0.0
- PORT=9004
- MCP_URL=http://listmonk-api-mcp:8000/mcp
- PROVIDER=${PROVIDER:-openai}
- MODEL_ID=${MODEL_ID:-gpt-4o}
- ENABLE_WEB_UI=True
- ENABLE_OTEL=True
ports:
- "9004:9004"docker compose -f docker/agent.compose.yml up -dExpose the HTTP server on a hostname with automatic TLS. Add to your Caddyfile:
# Internal (self-signed) — homelab .example.invalid zone
listmonk-api.example.invalid {
tls internal
reverse_proxy listmonk-api-mcp:8000
}# Public — automatic Let's Encrypt
listmonk-api.example.com {
reverse_proxy listmonk-api-mcp:8000
}Reload Caddy:
docker compose -f services/caddy/compose.yml exec caddy caddy reload --config /etc/caddy/CaddyfilePoint the hostname at the host running Caddy. Via the Technitium API:
curl -s "http://technitium.example.invalid:5380/api/zones/records/add" \
--data-urlencode "token=$TECHNITIUM_DNS_TOKEN" \
--data-urlencode "domain=listmonk-api.example.invalid" \
--data-urlencode "zone=arpa" \
--data-urlencode "type=A" \
--data-urlencode "ipAddress=192.0.2.10" \
--data-urlencode "ttl=3600"…or add an A record listmonk-api.example.invalid → <caddy-host-ip> in the Technitium web
console (http://technitium.example.invalid:5380). The ecosystem
technitium-dns-mcp automates
this as a tool.
Add to your client's mcp_config.json:
{
"mcpServers": {
"listmonk-api": {
"command": "uvx",
"args": ["--from", "listmonk-api", "listmonk-mcp"],
"env": {
"LISTMONK_URL": "https://listmonk.yourdomain.com",
"LISTMONK_TOKEN": "your-bearer-token"
}
}
}
}For a remote HTTP server, point the client at http://listmonk-api.example.invalid/mcp instead.