PMBus Power Supply API

API specification for interfacing with PMBus-compliant power supplies.

Files

• pmbus_api.yaml - OpenAPI 3.1 specification
• docs.html - Interactive API documentation (Swagger UI)
• p2*.txt - PMBus register documentation for specific PSU models

Viewing the Documentation

The API docs require a local web server (browsers block loading local YAML files directly).

Option 1: Python (recommended)

python3 -m http.server 8000

Open http://localhost:8000/docs.html

Option 2: Node.js

npx serve

Open the URL shown in the terminal (usually http://localhost:3000/docs.html)

Commands

Command	Method	Description
psu_info	GET	Device identification
psu_control_clear_faults	POST	Clear fault flags
psu_control_fan	GET/PUT	Fan enable and speed
psu_monitoring	GET	All sensor readings
psu_status	GET	All fault/warning flags
psu_config_limits	GET/PUT	Warning/fault thresholds

Example Usage

http://{host}:{port}/api?command=psu_info
http://{host}:{port}/api?command=psu_monitoring
http://{host}:{port}/api?command=psu_register_vin