---
title: "Get Available Firmware Versions per Charger"
method: POST
path: "/api/v4/ota/ev_charger/firmware/supported_versions"
tags: ["EVSE Configuration"]
---

# Get Available Firmware Versions per Charger

`POST /api/v4/ota/ev_charger/firmware/supported_versions`

## Request

- Base URL: `https://api-qa2.enphaseenergy.com`
- URL: `https://api-qa2.enphaseenergy.com/api/v4/ota/ev_charger/firmware/supported_versions`
- Auth: none declared
- TypeScript: <https://skmtc.dev/enphase/apis/commissioning-api/docs/api/v4/ota/ev_charger/firmware/supported_versions/post.ts> (a function with typed inputs; its response is checked against the schema)

Returns GA and Beta firmware versions supported by each charger, along with bundle description. Supports querying by current firmware version and/or serial number(s) (max 50 chargers per request).

## Query parameters

- `key` string, required

## Request body

- object
  - `firmwareVersion` string, required: Current firmware version of the charger
  - `serialNumbers` string[]: List of charger serial numbers (optional, max 50)

## Response `200`

OK

- object
  - `chargerVersions` object: Map of charger serial number (or 'charger' if no serial numbers provided) to list of available firmware versions
  - `errorMessage` string: Error message if the request is invalid

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `404`: Not Found
- `429`: Too Many Requests

---

[API](https://skmtc.dev/enphase/apis/commissioning-api.md) - [All operations](https://skmtc.dev/enphase/apis/commissioning-api/llms.txt) - [OpenAPI document](https://skmtc.dev/enphase/apis/commissioning-api/revisions/73a4001046e2?raw)