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

# Node RPC Pricing

> Node RPC usage is measured in Tenderly Units (TUs). See the per-method TU cost table and a worked example to estimate your request volume.

[Node RPC](/node-rpc/overview) usage is measured in **Tenderly Units (TUs)** based on the number of requests your dapp makes. Every [RPC method](/node-rpc/rpc-reference) belongs to a category, and each category has a fixed TU cost per request.

<Note>
  Node RPC is available on paid plans only. The Free plan does not include Node RPC access. [Contact our sales team](https://tenderly.co/contact-us) to enable Node RPC for your account.
</Note>

## TU cost per request

| Category           | Cost per request | Example methods                                                                           |
| ------------------ | ---------------- | ----------------------------------------------------------------------------------------- |
| Read               | 1 TU             | `eth_getBalance`, `eth_getTransactionByHash`                                              |
| Compute            | 4 TU             | `eth_call`, `eth_estimateGas`                                                             |
| Write              | 20 TU            | `eth_sendRawTransaction`                                                                  |
| Debug and Trace    | 40 TU            | `debug_traceBlock`, `trace_transaction`                                                   |
| Advanced Compute 1 | 40 TU            | `tenderly_estimateGas`                                                                    |
| Advanced Compute 2 | 400 TU           | `tenderly_simulateTransaction`, `tenderly_traceTransaction`, `tenderly_estimateGasBundle` |

## Calculating your usage

Multiply the number of requests in each category by its TU cost, then add them up. For example, if your dapp makes 1,000 read requests and 100 write requests:

* 1,000 reads × 1 TU = 1,000 TUs
* 100 writes × 20 TUs = 2,000 TUs
* **Total: 3,000 TUs**

<Note>
  To discuss capacity and limits for your account, [contact our sales team](https://tenderly.co/contact-us).
</Note>