API Reference

API Reference

BetterDesk exposes two HTTP APIs: the Go Server API (port 21114) and the Node.js Client API (port 21121).

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Authentication

API Key (Server-to-Server)

X-API-Key: <your-api-key>

Used by the Node.js console to communicate with the Go server. The API key is stored in /opt/rustdesk/.api_key.

JWT Bearer (User API)

Authorization: Bearer <jwt-token>

Obtained via POST /api/login on the Client API (port 21121). Used by Pro users and automated integrations.

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Go Server API (Port 21114)

Base URL: http://your-server:21114/api

Public Endpoints (No Auth Required)

Method	Endpoint	Description
GET	/api/server-config	Server address, public key, version
POST	/api/heartbeat	Client heartbeat with CPU/memory/disk metrics
POST	/api/sysinfo	Client system info upload (hostname, OS, version)
POST	/api/sysinfo_ver	Sysinfo version check (SHA256 hash)
GET	/api/server/stats	Total/online peer counts

Device Management (API Key Required)

Method	Endpoint	Description
GET	/api/peers	List all peers with live status
GET	/api/peers/{id}	Get single peer with live status
PATCH	/api/peers/{id}	Update peer fields (note, user, tags)
DELETE	/api/peers/{id}	Delete peer (soft-delete)
DELETE	/api/peers/{id}?revoke=true	Revoke: delete + block + disconnect
DELETE	/api/peers/{id}?cascade=true	Delete with linked devices
POST	/api/peers/{id}/change-id	Change device ID
PUT	/api/peers/{id}/tags	Set peer tags
GET	/api/peers/stats	Detailed peer statistics
GET	/api/peers/{id}/metrics	Historical metrics (CPU/memory/disk)
POST	/api/peers/{id}/wol	Send Wake-on-LAN magic packet

List Peers (Example)

curl http://your-server:21114/api/peers \
  -H "X-API-Key: your-api-key"

Response:

[
  {
    "id": "1340238749",
    "uuid": "a1b2c3d4-...",
    "hostname": "DESKTOP-ABC",
    "platform": "Windows 11",
    "version": "1.3.1",
    "ip": "192.168.1.100",
    "status": 1,
    "live_online": true,
    "live_status": "ONLINE",
    "last_online": "2026-03-27T12:00:00Z",
    "note": "Reception desk",
    "tags": "office,floor1",
    "device_type": "",
    "linked_peer_id": ""
  }
]

Change Device ID

curl -X POST http://your-server:21114/api/peers/1340238749/change-id \
  -H "X-API-Key: your-api-key" \
  -H "Content-Type: application/json" \
  -d '{"new_id": "RECEPTION01"}'

Wake-on-LAN

curl -X POST http://your-server:21114/api/peers/RECEPTION01/wol \
  -H "X-API-Key: your-api-key" \
  -H "Content-Type: application/json" \
  -d '{"mac_address": "AA:BB:CC:DD:EE:FF"}'

Configuration

Method	Endpoint	Description
GET	/api/config/{key}	Get config value
PUT	/api/config/{key}	Set config value

Audit

Method	Endpoint	Description
GET	/api/audit	Query audit log entries
POST	/api/audit/conn	Log connection audit event

Server Management

Method	Endpoint	Description
GET	/api/health	Server health check

Address Book

Method	Endpoint	Description
GET	/api/ab	Get user address book
POST	/api/ab	Save user address book
GET	/api/ab/personal	Get personal AB
GET	/api/ab/tags	Get AB tags

Access Policies

Method	Endpoint	Description
GET	/api/access-policies	List all access policies
GET	/api/access-policies/{id}	Get single policy
POST	/api/access-policies	Create access policy
PUT	/api/access-policies/{id}	Update access policy
DELETE	/api/access-policies/{id}	Delete access policy

Access Policy Schema

{
  "id": 1,
  "peer_id": "RECEPTION01",
  "password_hash": "$2a$10$...",
  "permanent_password": true,
  "allowed_operators": ["admin", "operator1"],
  "schedule": {
    "days": ["monday", "tuesday", "wednesday", "thursday", "friday"],
    "start_time": "08:00",
    "end_time": "18:00",
    "timezone": "Europe/Warsaw"
  },
  "enabled": true,
  "created_at": "2026-03-27T12:00:00Z"
}

RustDesk Client Compatibility

These endpoints mirror the standard RustDesk server API:

Method	Endpoint	Description
POST	/api/login	Client login (username/password)
GET	/api/login-options	Available login methods
POST	/api/logout	Client logout
GET	/api/currentUser	Current authenticated user info

CDAP Endpoints

Method	Endpoint	Description
GET	/api/cdap/status	CDAP gateway status
GET	/api/cdap/devices	List connected CDAP devices
GET	/api/cdap/devices/{id}/info	Device info (type, version, uptime)
GET	/api/cdap/devices/{id}/manifest	Device widget manifest
GET	/api/cdap/devices/{id}/state	Current widget state values
POST	/api/cdap/devices/{id}/command	Send command to device

WebSocket Events

ws://your-server:21114/api/ws/events?filter=peer_online

Real-time event stream. Supported filters:

• peer_online — Device online/offline status changes
• peer_registered — New device registration
• config_changed — Configuration updates

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Node.js Client API (Port 21121)

Base URL: http://your-server:21121/api

This API serves RustDesk desktop/mobile clients on a dedicated WAN-facing port with 7-layer security.

Authentication Endpoints

Method	Endpoint	Description
POST	/api/login	Client login
POST	/api/login/2fa	TOTP verification
GET	/api/login-options	Login method options
POST	/api/logout	Client logout
GET	/api/currentUser	Current user info

Login

curl -X POST http://your-server:21121/api/login \
  -H "Content-Type: application/json" \
  -d '{"username": "operator1", "password": "secret"}'

Response (success):

{
  "access_token": "eyJhbGciOiJIUzI1NiIs...",
  "type": "access_token",
  "user": {
    "name": "operator1",
    "role": "operator"
  }
}

Response (2FA required):

{
  "type": "2fa_required",
  "tfa_type": "totp",
  "access_token": "partial_token_here"
}

Address Book

Method	Endpoint	Description
GET	/api/ab	Get address book
POST	/api/ab	Save address book
GET	/api/ab/personal	Get personal AB
GET	/api/ab/tags	Get AB tags

Device Endpoints

Method	Endpoint	Description
GET	/api/peers	List peers (with Bearer token)
GET	/api/users	List users (with Bearer token)

Heartbeat & Sysinfo

Method	Endpoint	Description
POST	/api/heartbeat	Device heartbeat
POST	/api/sysinfo	System information update
POST	/api/audit/conn	Connection audit log

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Error Responses

Standard Error Format

{
  "error": "Error description"
}

HTTP Status Codes

Code	Description
200	Success
201	Created
400	Bad request (validation error)
401	Unauthorized (missing/invalid auth)
403	Forbidden (insufficient role)
404	Resource not found
429	Rate limit exceeded
500	Internal server error

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Rate Limits

Endpoint	Limit
POST /api/login	5 requests/minute per IP
POST /api/login/2fa	5 requests/minute per IP
Other endpoints	No limit (API key/JWT required)

The 429 response includes Retry-After header indicating seconds to wait.