> ## 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.

# wallet/getpendingsize | TRON

> TRON API method that returns the current size of the pending transaction pool (mempool). wallet/getpendingsize on TRON via Chainstack.

TRON API method that returns the current size of the pending transaction pool (mempool). This provides insight into network congestion and the number of unconfirmed transactions awaiting processing.

## Parameters

This method requires no parameters. It returns the current size of the pending transaction pool.

## Response

* `pendingSize` — number representing the current count of pending transactions in the mempool

## Use case

The `wallet/getpendingsize` method is used for:

* Monitoring network congestion by tracking the number of pending transactions.
* Building network analytics dashboards that display mempool statistics.
* Implementing adaptive fee strategies based on current network load.
* Creating alerts for high network congestion periods.
* Optimizing transaction timing for applications based on mempool size.

<Note>
  The pending pool size fluctuates constantly as new transactions are submitted and existing ones are confirmed or dropped. A larger pending size typically indicates higher network congestion and may suggest longer confirmation times.
</Note>


## OpenAPI

````yaml openapi/tron_node_api/getpendingsize.json get /95e61622bf6a8af293978377718e3b77/wallet/getpendingsize
openapi: 3.0.0
info:
  title: wallet/getpendingsize TRON API
  version: 1.0.0
  description: Get size of pending transaction pool
servers:
  - url: https://tron-mainnet.core.chainstack.com
security: []
paths:
  /95e61622bf6a8af293978377718e3b77/wallet/getpendingsize:
    get:
      tags:
        - Pending Transactions
      summary: wallet/getpendingsize
      operationId: getPendingSize
      responses:
        '200':
          description: Current size of the pending transaction pool
          content:
            application/json:
              schema:
                type: object
                properties:
                  pendingSize:
                    type: integer
                    description: Number of pending transactions in the mempool
                    example: 1247

````