Read liquidity-pool state, follow token transfers, and send transactions on Cronos EVM with reliable, high-performance RPC infrastructure.
Connect to Cronos EVM Mainnet over HTTPS and WebSocket. Read contract state, subscribe to events, and submit signed transactions using familiar Ethereum libraries.
Build Cronos applications with archive state, contract debugging, and predictable RPC capacity.
Run Cronos indexers and application backends with unlimited requests within your selected RPS tier. Keep monthly RPC costs predictable as request volume grows.
Query historical contract state and backfill event logs for Cronos indexers, accounting, and DeFi analytics.
Inspect Cronos execution with debug_traceTransaction and debug_traceCall. Diagnose reverted calls without maintaining a debugging node.
Read liquidity-pool state, simulate contract calls, and submit signed swaps. Connect your application with ethers.js, viem, or web3.py.
Explore Cronos tooling
Collect contract events with eth_getLogs and subscribe to new logs over WebSocket. Track the assets and pools your application supports.
Explore Cronos methods
Read native CRO balances, query ERC-20 balances, and check transaction receipts. Keep gas estimates and transaction status close to the user flow.
Obtenir le point de terminaison
Use debug_traceTransaction and debug_traceCall to inspect execution. Cronos exposes debug APIs rather than the trace namespace.
Explore Cronos debug APIs
Use Ethereum development tools with Cronos EVM chain ID 25. Cronos EVM is a separate network from Cronos zkEVM and Cronos POS.
Explore Cronos toolingChoose Cronos mainnet or Sepolia and an available node configuration to estimate monthly infrastructure costs.
Choose an available Cronos network and node configuration to estimate monthly infrastructure costs.
Témoignages de clients issus d'équipes utilisant l'Chainstack sur les réseaux pris en charge.
…the ecosystem is excited to welcome Chainstack to bring low friction, enterprise-grade node infrastructure to the Cronos developer community.Chainstack a joué un rôle essentiel dans l'amélioration des fonctionnalités multi-chaînes et de l'expérience utilisateur (UX) de Brave Wallet.Le modèle de forfait « Unlimited » d'Node nous offre une prévisibilité des coûts, et ses performances sont d'une fiabilité à toute épreuve.Nous sommes passés de plusieurs incidents par semaine à zéro incident.Notre collaboration avec Chainstack nous a permis de réduire nos coûts d'infrastructure de plus de 70 %, tout en relevant des défis complexes en matière de sécurité Web3.
Query pool contracts over HTTPS, collect trading events with eth_getLogs, and subscribe to new logs over WebSocket. Backfill historical data for the markets your application follows.
Obtenir le point de terminaisonRun Cronos EVM Mainnet or Testnet on infrastructure you control. Deploy cronosd with monitoring, automated updates, and self-healing operations through Chainstack Self-Hosted.
Read token-transfer events from the latest Cronos block with eth_getLogs.
Infrastructure compatible avec l'IA
Parrainez et gagnez
Ethereum
Hyperliquid
Solana
Arbitrum
BNB Smart Chain
Base
Polygon
TRON
Sui
Robinhood
SOC 2 Type II
ISO 27001
Disponibilité supérieure à 99,99 %
En savoir plus
Consulter le guide d'installationhttps://cronos-mainnet.core.chainstack.com/YOUR_ENDPOINT_IDwss://cronos-mainnet.core.chainstack.com/YOUR_ENDPOINT_IDCreate a Cronos node. Copy your authenticated HTTPS URL from Accès et identifiants et remplacer YOUR_ENDPOINT_ID dans l'exemple.
curl --request POST \
--url https://cronos-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID \
--header 'Content-Type: application/json' \
--data '{
"jsonrpc": "2.0",
"id": 1,
"method": "eth_getLogs",
"params": [
{
"fromBlock": "latest",
"toBlock": "latest",
"topics": [
"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
]
}
]
}'The result is an array of matching logs. Add the token or pool contract address and bounded block ranges when collecting historical activity.
Consulter la référence des méthodes (s'ouvre dans un nouvel onglet)
Start with free Cronos RPC. Scale your application with paid plans, higher throughput, and dedicated infrastructure.
Comprend :
Toutes les fonctionnalités destinées aux développeurs, ainsi que :
Les modules complémentaires et l'infrastructure dédiée d'Node sont facturés séparément.
Une assistance exceptionnelle pour toutes les formules payantesÉconomisez plus de 50 % sur notre formule haut de gamme « Pay-as-you-go »
Discuter sur Telegram (s'ouvre dans un nouvel onglet)Explore Cronos RPC, application development, and infrastructure guides.
Explore managed RPC access and application development.
Lire l'article
Follow a practical Solidity deployment walkthrough.
Lire l'article
Learn the event-subscription pattern for EVM trading feeds.
Lire l'article
Set access rules for production applications.
Lire l'articleDécouvrez les projets open source développés par notre équipe chargée de l'expérience développeur. Suivez nos guides pratiques, visionnez nos tutoriels et adaptez le code à votre application.
JavaScript · Smart contracts
Write a Solidity lottery contract, then deploy and verify it on Cronos Testnet with Hardhat. Follow the repository and guide for contract interaction and testing.
A Cronos RPC endpoint connects your application to Cronos EVM through Ethereum-compatible JSON-RPC. Use it to read balances and contract state, retrieve event logs, estimate gas, and send signed transactions. Cronos EVM is separate from Cronos POS and Cronos zkEVM. See the Cronos tooling guide.
Oui. La formule « Developer » de Chainstackcomprend 3 millions d’ request units s par mois, 25 requêtes par seconde et un node, sans obligation de fournir de numéro de carte bancaire. La consommation d’unités de requêtes dépend de la méthode utilisée. Créez un compte gratuit ou comparez les caractéristiques des différentes formules.
Réseau principal : https://cronos-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID.
Testnet: https://cronos-testnet.core.chainstack.com/YOUR_ENDPOINT_ID.
Remplacer YOUR_ENDPOINT_ID avec l'identifiant figurant dans le panneau « Accès et identifiants » de votre node. Veillez à ne pas divulguer cet identifiant et utilisez l'URL complète fournie pour votre réseau déployé. Get a Cronos endpoint.
Cronos Mainnet uses chain ID 25. Cronos Testnet uses chain ID 338. These are Cronos EVM networks, not Cronos POS or Cronos zkEVM. See the Cronos tooling guide for connection examples.
Yes. Use the WebSocket URL in your node’s Access and credentials panel with eth_subscribe to follow new blocks and contract logs. Use HTTPS and eth_getLogs for historical backfills, and reconnect and catch up after a dropped subscription. See the Cronos connection examples.
Paid Cronos Global Nodes expose debug_traceTransaction, debug_traceCall, debug_traceBlockByNumber, et debug_traceBlockByHash. Cronos does not serve the trace_* namespace. On Cronos Mainnet archive nodes, debug_traceBlockByNumber is limited to 10 requests per second on all plans. See Cronos debug API availability.
Yes. Cronos archive access is available on paid plans for historical contract-state reads. Event-log retrieval and historical state are different workloads: specify the block you need for state queries, and paginate log backfills. Available historical ranges depend on the node configuration and retained data. See supported networks and node modes.
Yes. Chainstack Self-Hosted supports Cronos Mainnet and Testnet using cronosd. Deploy on infrastructure you control and manage the node through the Chainstack Self-Hosted interface. Hosting resources remain your responsibility. See the installation guide et supported deployment catalog.
Connect your application to Chainstack’s Cronos HTTPS endpoint to read balances, call contracts, query event logs, and submit signed transactions. Use eth_call pour les lectures de contrats, eth_getLogs pour toute question concernant les événements, eth_getTransactionReceipt pour la vérification des reçus, et eth_sendRawTransaction to broadcast a signed transaction. Cronos Mainnet uses chain ID 25. Cronos Testnet uses chain ID 338.
A Chainstack Cronos Mainnet endpoint follows the format https://cronos-mainnet.core.chainstack.com/YOUR_ENDPOINT_ID. Remplacer YOUR_ENDPOINT_ID with your own authenticated node identifier. Use ethers.js, viem, or web3.py to build DeFi interfaces, trading systems, and wallet backends. WebSocket subscriptions can follow new blocks and contract logs; use bounded HTTPS log requests for historical backfills. See the Cronos tooling guide et Référence des méthodes RPC pour plus de détails sur l'intégration.
