TON Testnet RPC Endpoints & API | OnFinality

TON Testnet RPC Endpoint & API Service

Build and test your TON applications with confidence using OnFinality's managed TON Testnet RPC endpoints. Whether you are developing smart contracts, integrating wallets, or preparing for mainnet deployment, our reliable testnet infrastructure gives you the stable access you need without running your own node.

What is TON Testnet?

TON Testnet is a sandbox environment for The Open Network (TON) — a decentralized and open internet designed to onboard 500 million users on-chain, built by the community using technology developed by Telegram. The testnet allows developers to experiment, debug, and validate their applications in a risk-free setting before moving to mainnet.

Why Use OnFinality for TON Testnet RPC?

• Managed Infrastructure: No need to sync or maintain your own TON node. OnFinality handles uptime, updates, and scaling.
• Archive Data: Access historical state for deep debugging and analytics.
• Global Regions: Endpoints available in N. Virginia and Hong Kong for low-latency connections.
• Observability: Monitor request usage, errors, and limits through the OnFinality dashboard.
• Scaling Path: Start with shared RPC and upgrade to dedicated nodes as your project grows.

How to Connect to TON Testnet

1. Create or sign in to your OnFinality account.
2. Select TON Testnet from the supported networks list.
3. Create an API endpoint (shared or dedicated if available).
4. Test your connection using the getMasterchainInfo method.
5. Monitor your usage and move to production traffic when ready.

Key Facts

• Network: TON Testnet
• Protocol: TON JSON-RPC
• Transport: HTTP and WebSocket
• Advanced Access: Archive
• Common Use Cases: Contract testing, QA, staging releases, wallet integration testing, backend validation

TON Testnet RPC vs Public RPC

Public TON Testnet RPC endpoints are convenient for quick experiments but often lack reliability and visibility for team projects. OnFinality provides authenticated endpoints with clearer limits, request analytics, and a path to higher capacity.

When to Use TON Testnet RPC

Choose OnFinality when your team needs TON testnet endpoint access for wallet testing, contract or app integration, backend validation, and staging workflows before moving to TON mainnet.

For production endpoint access, use TON RPC endpoints.