Kava RPC: Chain Settings, Endpoints, and Debugging

Quick Decision Guide: Which Kava RPC Endpoint Should You Use?

Before diving into the details, here's a quick guide to help you choose the right Kava RPC endpoint for your use case:

• For production applications: Use a managed RPC provider like OnFinality to ensure high availability and performance. Public endpoints are rate-limited and not suitable for production workloads.
• For development and testing: You can use the public RPC endpoint, but be aware of rate limits and potential downtime.
• For high-throughput or archival needs: Consider a dedicated node to get the performance and data retention you need.

If you're unsure which option fits your workload, check out our RPC pricing and supported networks pages for more details.

What Is Kava and Why Does Its RPC Matter?

Kava is a Layer 1 blockchain built with the Cosmos SDK, designed to offer a fast and scalable platform for decentralized finance (DeFi) applications. It features an Ethereum Virtual Machine (EVM) compatible environment, allowing developers to deploy Solidity smart contracts and use Ethereum tooling like MetaMask and Hardhat.

To interact with the Kava network, applications need to send JSON-RPC requests to a Kava node. This is where RPC endpoints come in. An RPC endpoint is a URL that your application uses to communicate with the blockchain—querying balances, sending transactions, and reading smart contract data.

Choosing the right Kava RPC endpoint is crucial for the reliability and performance of your application. In this article, we'll cover the chain settings you need, how to connect, and common issues you might encounter.

Kava Chain Settings at a Glance

When connecting to Kava, you'll need the following chain settings. These are essential for configuring wallets, block explorers, and development tools.

Setting	Value
Network Name	Kava
Chain ID	kava_2222-10
RPC URL	Use the public endpoint or your provider's endpoint
Token Symbol	KAVA
Block Explorer	https://explorer.kava.io

Note: The chain ID may change if the network upgrades. Always refer to the official Kava documentation for the latest chain ID.

For the public RPC endpoint, you can use the OnFinality public endpoint for Kava. However, for production use, we recommend using a managed service like OnFinality's Kava network page to get a dedicated endpoint.

Connecting to Kava RPC: Examples

Here's how to connect to Kava using different tools and libraries.

Using curl with JSON-RPC

You can make a simple JSON-RPC request to check the latest block number:

curl -X POST https://rpc.kava.io -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

Replace https://rpc.kava.io with your actual RPC endpoint.

Using ethers.js (JavaScript)

const { ethers } = require("ethers");

const provider = new ethers.providers.JsonRpcProvider("https://rpc.kava.io");

async function getBlockNumber() {
  const blockNumber = await provider.getBlockNumber();
  console.log("Current block number:", blockNumber);
}

getBlockNumber();

Using viem (JavaScript)

import { createPublicClient, http } from 'viem';

const client = createPublicClient({
  chain: {
    id: 2222,
    name: 'Kava',
    network: 'kava',
    nativeCurrency: { name: 'Kava', symbol: 'KAVA', decimals: 18 },
    rpcUrls: {
      default: { http: ['https://rpc.kava.io'] },
    },
  },
  transport: http(),
});

const blockNumber = await client.getBlockNumber();
console.log(blockNumber);

Wallet Configuration

To add Kava to MetaMask, use the following settings:

• Network Name: Kava
• RPC URL: Your RPC endpoint
• Chain ID: 2222
• Symbol: KAVA
• Explorer: https://explorer.kava.io

Common Kava RPC Issues and How to Fix Them

Even with the right endpoint, you may encounter issues. Here are some common problems and their solutions.

1. Rate Limiting

Public endpoints often have rate limits. If you're sending too many requests, you might get errors like 429 Too Many Requests or rate limit exceeded.

Solution: Use a managed RPC provider like OnFinality that offers higher rate limits and dedicated resources. Check our pricing for options.

2. Connection Timeouts

If your requests time out, it could be due to network congestion or an unreliable endpoint.

Solution: Try a different endpoint or use a provider with multiple failover endpoints. OnFinality provides redundant infrastructure to minimize downtime.

3. Incorrect Chain ID

Using the wrong chain ID can cause transactions to fail or be sent to the wrong network.

Solution: Double-check the chain ID. For Kava, it's 2222 (in decimal) or kava_2222-10 (in Cosmos format).

4. Nonce Issues

If you're sending multiple transactions from the same account, you might encounter nonce errors like nonce too low or replacement transaction underpriced.

Solution: Manage your nonce properly. Use eth_getTransactionCount to get the correct nonce before sending a transaction.

5. Block Not Found

When querying historical data, you might get an error if the node doesn't have the block in its archive.

Solution: Use an archive node or a provider that offers archive data. OnFinality supports archive nodes for many networks.

Kava RPC Methods and Limits

Kava's EVM compatibility means you can use standard Ethereum JSON-RPC methods like eth_call, eth_sendTransaction, eth_getBalance, and eth_getLogs. However, there are some network-specific considerations.

• Block time: Kava has a block time of around 6 seconds.
• Gas limit: The block gas limit is set by the network; check the latest block for current values.
• WebSocket support: Some providers offer WebSocket endpoints for real-time updates. Check with your provider.

For a full list of supported methods, refer to the Kava documentation or your RPC provider's documentation.

Choosing a Kava RPC Provider: What to Evaluate

When selecting a Kava RPC provider, consider the following factors:

• Uptime and reliability: Look for providers with a proven track record and redundant infrastructure.
• Performance: Low latency and high throughput are critical for production apps.
• Archive data: If you need historical data, ensure the provider offers archive nodes.
• WebSocket support: For real-time applications, WebSocket is essential.
• Pricing: Compare pricing models—pay-as-you-go vs. subscription.

OnFinality offers a robust RPC service for Kava with high availability and performance. Check out our Kava network page for more details.

Kava RPC vs. Running Your Own Node

Running your own Kava node gives you full control but comes with operational overhead. You need to handle hardware, maintenance, monitoring, and scaling. For many teams, using a managed RPC provider is more cost-effective and reliable.

Consider the following tradeoffs:

• Cost: Running a node requires dedicated hardware and ongoing maintenance costs.
• Time: Setting up and maintaining a node takes time away from development.
• Reliability: Managed providers often have better uptime and failover mechanisms.

If you're building a production app, we recommend using a managed service like OnFinality to focus on your product.

Key Takeaways

• Kava is a Cosmos-based L1 with EVM compatibility, and its RPC endpoints are essential for interacting with the network.
• Use the correct chain ID (2222) and network settings to avoid errors.
• Public endpoints are fine for testing, but production apps should use a managed RPC provider.
• Common issues include rate limiting, timeouts, and nonce errors—most can be avoided with a reliable provider.
• Evaluate providers based on uptime, performance, archive data, and WebSocket support.

Frequently Asked Questions

What is the Kava RPC URL?

The public RPC URL for Kava is https://rpc.kava.io. For production use, consider a managed provider like OnFinality.

What is the Kava chain ID?

The Kava chain ID is kava_2222-10 (Cosmos format) or 2222 (EVM format).

How do I add Kava to MetaMask?

Use the network settings: RPC URL, Chain ID 2222, Symbol KAVA, and Explorer URL.

Does Kava support WebSocket?

Some providers offer WebSocket endpoints. Check with your RPC provider.

Why am I getting rate limited on the public Kava RPC?

Public endpoints have rate limits to prevent abuse. Use a managed provider for higher limits.

Can I use Kava RPC for free?

Yes, public endpoints are free but limited. For production, you'll need a paid plan.

How do I troubleshoot nonce errors on Kava?

Use eth_getTransactionCount to get the correct nonce before sending transactions.

What is the block time on Kava?

Kava's block time is approximately 6 seconds.

Does OnFinality support Kava?

Yes, OnFinality provides Kava RPC endpoints. Visit our Kava network page for more information.

How do I get a dedicated Kava node?

Contact OnFinality for dedicated node options. Check our dedicated node page for details.

Related resources

• Kava Network Page
• RPC Pricing
• Supported RPC Networks

Originally published at OnFinality.