Cronos API

JSON-RPC for Cronos with archive depth and failover across providers, on the same API key as 100+ other chains. No nodes to run.

Get a free API keyRead the Cronos docs
# JSON-RPC on Cronos: 0.01 credits per call
curl -X POST https://rpc.goldrushdata.com/v1/cronos-mainnet \
  -H "Authorization: Bearer $GOLDRUSH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","id":1}'

Used by EY, Fidelity and Consensys

  • EY
  • Fidelity
  • Consensys
  • Jump
  • Ondo
  • ThorWallet
  • Rainbow
  • Matcha
  • Velora
  • AtomicWallet
  • Atlas Wallet
  • OneKey
Read the case studies

Cronos RPC endpoint

Standard eth_*, net_* and web3_* methods plus debug_* and trace_*, with archive depth, drop-in for viem, ethers, web3.js and web3.py. GoldRush routes each call to the best of several upstream providers, from regional edge locations, with a 99.9% production SLA. It uses the same API key and credits as the rest of GoldRush.

  • Standard: eth_*, net_* and web3_* methods0.01 credits per call
  • Trace: debug_* and trace_* methods0.015 credits per call
JSON-RPC quickstartMigrate from Infura, Alchemy or AnkrJSON-RPC pricing
// ethers v6, pointed at the GoldRush endpoint
import { ethers } from "ethers";

const url = "https://rpc.goldrushdata.com/v1/cronos-mainnet";
const req = new ethers.FetchRequest(url);
const key = process.env.GOLDRUSH_API_KEY;
req.setHeader("Authorization", `Bearer ${key}`);
const provider = new ethers.JsonRpcProvider(req);

console.log(await provider.getBlockNumber());

Cronos on GoldRush

GoldRush serves decoded Cronos data through one REST API. Network covered: cronos-mainnet (chain ID 25, 6-second blocks), with block explorer data from cronoscan.com.

cronos-mainnetArchived chain
Chain name
cronos-mainnet
Chain ID
25
Block time
6 s
Gas token
CRO
Block explorer
cronoscan.com
JSON-RPC endpoint
https://rpc.goldrushdata.com/v1/cronos-mainnet
Data last updated .

Chain details from the Cronos chain reference.

Start building on Cronos

Every account starts with a 14-day free trial: 25,000 credits at 4 requests per second, no credit card. After that, Vibe Coding is $10 a month for prototypes and side projects, and Professional is $250 a month with 50 requests per second for production.

Get a free API keySee pricing

Cronos FAQ

Yes. https://rpc.goldrushdata.com/v1/cronos-mainnet serves Cronos JSON-RPC on your GoldRush API key, sent as an Authorization: Bearer header. Standard methods cost 0.01 credits per call and debug and trace methods 0.015. See the JSON-RPC quickstart.

Cronos API docs

Start here

Reference

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