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Kadena RPC endpoints and public nodes

Kadena does not use Ethereum's JSON-RPC. Apps talk to a Chainweb node's REST API, with a Pact API for each of the 20 chains. These are the public mainnet endpoints the community runs today.

At a glance

Network ID
mainnet01
Chains
0 to 19
Pact API (per chain)
https://api.chainweb-community.org/chainweb/0.0/mainnet01/chain/{chain}/pact/api/v1
Node info
https://api.chainweb-community.org/info
Current block heights (cut)
https://api.chainweb-community.org/chainweb/0.0/mainnet01/cut
GraphQL indexer
https://graphql.chaddex.com/graphql/v0
Latest node software
chainweb-node 3.2.1 (August 2026)

Public endpoints

Kadena Community Edition API

api.chainweb-community.org serves the full Chainweb API, including the Pact endpoints /local (read-only queries), /send, /poll and /listen for each chain. Use it for wallets, apps and scripts. It is a shared community service, so keep request rates reasonable.

Saudi Kadena node

node.kadena.ws is the Kadena Nexus node in Jeddah. It answers /info and /chainweb/0.0/mainnet01/cut from any website (CORS is open), which makes it handy for checking block heights and node status from a browser. It does not expose the Pact API; send transactions and queries to the Community Edition API above.

GraphQL indexer

For history, such as an account's transfers or blocks over time, a node is the wrong tool: it answers about the current state. The chaddex GraphQL indexer at graphql.chaddex.com/graphql/v0 serves blocks, transactions and transfers. Block explorers such as DenaScan and the Kadena explorer show the same data in a browser.

Examples

Current height of every chain

curl https://api.chainweb-community.org/chainweb/0.0/mainnet01/cut

Read a KDA balance with @kadena/client

import { createClient, Pact } from '@kadena/client';

const client = createClient(({ chainId, networkId }) =>
  `https://api.chainweb-community.org/chainweb/0.0/${networkId}/chain/${chainId}/pact`);

const tx = Pact.builder
  .execution('(coin.get-balance "k:your-public-key")')
  .setMeta({ chainId: '1' })
  .setNetworkId('mainnet01')
  .createTransaction();

const res = await client.local(tx, { preflight: false, signatureVerification: false });
console.log(res.result); // { status: 'success', data: 12.34 }

A /local call reads state without a signature and costs nothing. Changing state, such as a transfer, needs a signed transaction sent with /send, which pays a small gas fee in KDA.

Run your own node

For production apps, exchanges and mining pools, run your own node so you are not limited by a shared service. The community maintains the node software at kda-community/chainweb-node. The Kadena Network Monitor shows the public nodes and their versions.

Questions people ask

What is the Kadena RPC URL?

For Kadena mainnet, use https://api.chainweb-community.org/chainweb/0.0/mainnet01/chain/{chain}/pact/api/v1, replacing {chain} with a chain number from 0 to 19. The network ID is mainnet01.

Does Kadena support Ethereum JSON-RPC?

No. Kadena mainnet is not an EVM chain. It uses its own REST API from Chainweb nodes, with a Pact API for each of its 20 chains. Libraries such as @kadena/client handle the details.

What is the Kadena mainnet network ID?

mainnet01. The network ID is part of every transaction, so a transaction made for one network cannot run on the other.

How do I get the latest Kadena block height?

Call the cut endpoint, for example https://api.chainweb-community.org/chainweb/0.0/mainnet01/cut. It returns the current height and block hash of each of the 20 chains.

Is there a free public Kadena API?

Yes. The Kadena Community Edition runs api.chainweb-community.org, and Kadena Nexus runs node.kadena.ws for status queries. Both are free shared services; heavy users should run their own node.

Sources

Written by Kadena Nexus, an independent community project. Not financial advice. Last updated November 3, 2026.