> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# jsonrpc eth_protocolVersion | TRON

> TRON API method that returns the current Ethereum protocol version using Ethereum-compatible JSON-RPC format. TRON via Chainstack.

TRON API method that returns the current Ethereum protocol version using Ethereum-compatible JSON-RPC format. This method provides Ethereum tooling compatibility for protocol version identification on TRON.

## Parameters

* `jsonrpc` — the JSON-RPC protocol version (always "2.0")
* `method` — the method name (always "eth\_protocolVersion")
* `params` — parameters array (empty for this method)
* `id` — request identifier (number or string)

## Response

* `jsonrpc` — the JSON-RPC protocol version ("2.0")
* `id` — the request identifier that matches the request
* `result` — the current Ethereum protocol version as a hexadecimal string

## Use case

The `jsonrpc eth_protocolVersion` method is used for:

* Identifying the Ethereum protocol version for compatibility with Ethereum tools
* Supporting multi-protocol applications that need to adapt to different versions
* Enabling Ethereum-compatible wallet and dApp integration with TRON
* Providing protocol version information for debugging and development tools


## OpenAPI

````yaml openapi/tron_node_api/jsonrpc_eth_protocolVersion.json POST /95e61622bf6a8af293978377718e3b77/jsonrpc
openapi: 3.0.0
info:
  title: jsonrpc eth_protocolVersion TRON API
  version: 1.0.0
  description: Get current Ethereum protocol version using Ethereum-compatible JSON-RPC
servers:
  - url: https://tron-mainnet.core.chainstack.com
security: []
paths:
  /95e61622bf6a8af293978377718e3b77/jsonrpc:
    post:
      tags:
        - JSON-RPC Compatibility
      summary: eth_protocolVersion
      operationId: ethProtocolVersion
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - jsonrpc
                - method
                - params
                - id
              properties:
                jsonrpc:
                  type: string
                  enum:
                    - '2.0'
                  default: '2.0'
                method:
                  type: string
                  enum:
                    - eth_protocolVersion
                  default: eth_protocolVersion
                params:
                  type: array
                  items: {}
                  default: []
                id:
                  oneOf:
                    - type: string
                    - type: integer
                  default: 64
      responses:
        '200':
          description: Current Ethereum protocol version
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                    example: '2.0'
                  id:
                    oneOf:
                      - type: string
                      - type: integer
                    example: 64
                  result:
                    type: string
                    description: Ethereum protocol version as hexadecimal string
                    example: '0x41'

````