# Overview

Tempo is a purpose-built Layer 1 blockchain designed for payments. It is EVM-compatible and built to support high-throughput, low-latency transaction flows, with sub-second finality and near-zero transaction fees.

Tempo is optimized for stablecoin payments and supports payment-specific functionality such as batch transfers, memo fields, compliance tooling including blocklists and allowlists, and the ability to pay transaction fees in supported stablecoins.

Block explorer: <https://explore.tempo.xyz>

### Network Support

| Network                  | Full History / Archive | HTTPS | WSS |
| ------------------------ | ---------------------- | ----- | --- |
| Tempo Mainnet            | ✅                      | ✅     | ✅   |
| Tempo Testnet (Moderato) | ✅                      | ✅     | ✅   |

> WebSocket clients **MUST** respond to server `ping` frames, otherwise the connection will be closed and re-established every minute.

## Methods & Compute Units

<table data-header-hidden><thead><tr><th></th><th width="100"></th></tr></thead><tbody><tr><td>debug_traceBlockByHash</td><td>80</td></tr><tr><td>debug_traceBlockByNumber</td><td>80</td></tr><tr><td>debug_traceCall</td><td>80</td></tr><tr><td>debug_traceTransaction</td><td>80</td></tr><tr><td>eth_blockNumber</td><td>20</td></tr><tr><td>eth_call</td><td>40</td></tr><tr><td>eth_chainId</td><td>10</td></tr><tr><td>eth_estimateGas</td><td>40</td></tr><tr><td>eth_feeHistory</td><td>20</td></tr><tr><td>eth_gasPrice</td><td>40</td></tr><tr><td>eth_getBalance</td><td>40</td></tr><tr><td>eth_getBlockByHash</td><td>40</td></tr><tr><td>eth_getBlockByNumber</td><td>40</td></tr><tr><td>eth_getBlockReceipts</td><td>40</td></tr><tr><td>eth_getBlockTransactionCountByHash</td><td>40</td></tr><tr><td>eth_getBlockTransactionCountByNumber</td><td>40</td></tr><tr><td>eth_getCode</td><td>40</td></tr><tr><td>eth_getFilterChanges</td><td>40</td></tr><tr><td>eth_getFilterLogs</td><td>40</td></tr><tr><td>eth_getLogs</td><td>80</td></tr><tr><td>eth_getProof</td><td>40</td></tr><tr><td>eth_getStorageAt</td><td>40</td></tr><tr><td>eth_getTransactionByBlockHashAndIndex</td><td>40</td></tr><tr><td>eth_getTransactionByBlockNumberAndIndex</td><td>40</td></tr><tr><td>eth_getTransactionByHash</td><td>40</td></tr><tr><td>eth_getTransactionCount</td><td>40</td></tr><tr><td>eth_getTransactionReceipt</td><td>40</td></tr><tr><td>eth_getUncleCountByBlockHash</td><td>40</td></tr><tr><td>eth_getUncleCountByBlockNumber</td><td>40</td></tr><tr><td>eth_newBlockFilter</td><td>40</td></tr><tr><td>eth_newFilter</td><td>40</td></tr><tr><td>eth_newPendingTransactionsFilter</td><td>40</td></tr><tr><td>eth_sendRawTransaction</td><td>80</td></tr><tr><td>eth_subscribe</td><td>20</td></tr><tr><td>eth_syncing</td><td>10</td></tr><tr><td>eth_uninstallFilter</td><td>20</td></tr><tr><td>eth_unsubscribe</td><td>20</td></tr><tr><td>eth_syncing</td><td>10</td></tr><tr><td>net_listening</td><td>10</td></tr><tr><td>net_peercount</td><td>20</td></tr><tr><td>net_version</td><td>10</td></tr><tr><td>trace_block</td><td>80</td></tr><tr><td>trace_call</td><td>80</td></tr><tr><td>trace_filter</td><td>80</td></tr><tr><td>trace_replayBlockTransactions</td><td>270</td></tr><tr><td>trace_replayTransaction</td><td>270</td></tr><tr><td>trace_transaction</td><td>80</td></tr><tr><td>web3_clientVersion</td><td>40</td></tr><tr><td>web3_sha3</td><td>40</td></tr></tbody></table>

### Endpoint Capabilities

Tempo endpoints support both HTTP and WebSocket connectivity for production-grade applications.

#### HTTP

Best suited for:

* backend services and APIs
* blockchain data queries
* smart contract deployment and interaction
* development and testing workflows

#### WebSocket

Best suited for:

* real-time transaction monitoring
* event subscriptions
* live dashboards and analytics
* applications that require low-latency data delivery

### Getting Started

To start building on Tempo, connect your application to a Tempo endpoint and send standard Ethereum JSON-RPC requests.

Example request:

{% tabs %}
{% tab title="testnet" %}

```bash
curl https://testnet.tempo.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":0}'

```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.validationcloud.io/v1/tempo/overview.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.