The OKTC (OKT Chain) network is a high-performance, decentralized blockchain platform designed to support scalable smart contracts and decentralized applications (dApps). Built with Ethereum Virtual Machine (EVM) compatibility, OKTC enables developers to seamlessly migrate and deploy Ethereum-based projects while benefiting from faster transaction speeds and lower fees. This guide provides an in-depth overview of the OKTC ecosystem, essential tools, developer resources, and practical integration steps for builders and innovators.
Understanding the OKTC Mainnet
The OKTC Mainnet serves as the live production environment where real transactions occur and dApps operate. It's the backbone of the entire ecosystem, supporting everything from DeFi protocols to NFT marketplaces.
Key technical specifications include:
- RPC URL:
https://exchainrpc.okex.org - WebSocket URL:
wss://exchainws.okex.org:8443 - Chain ID: 66
- Native currency: OKT
- Block explorer: OKTC Block Explorer
Developers can easily integrate OKTC into popular wallets like MetaMask by manually adding the network or using Chainlist, a trusted community-driven directory. Simply search for Chain ID 66 on Chainlist to auto-configure your wallet settings.
👉 Get started with OKTC development tools and resources today.
Developer-Centric APIs and Documentation
For developers building on OKTC, comprehensive API documentation is available to streamline integration. The OKTC API docs offer detailed endpoints for querying blockchain data, sending transactions, and interacting with smart contracts programmatically.
Whether you're fetching balance information, monitoring transaction status, or building a custom analytics dashboard, these RESTful APIs provide reliable access to core blockchain functionalities. All endpoints are well-documented with code examples in multiple programming languages, making onboarding faster and more intuitive.
Semantic structure and consistent response formats enhance usability, allowing both novice and experienced developers to quickly understand how to interact with the chain at a programmatic level.
Explore Transactions with the OKTC Block Explorer
Transparency is a cornerstone of blockchain technology. The OKTC Block Explorer allows users and developers to view real-time transaction data, track wallet balances, inspect smart contract code, and verify token transfers.
This powerful tool is essential for debugging, auditing, and monitoring dApp activity. You can search by transaction hash, address, or block number to retrieve granular details such as gas usage, timestamp, and execution status.
Use cases include:
- Validating successful token swaps
- Auditing contract interactions
- Monitoring validator performance
- Tracking cross-chain asset movements
Swap Tokens Efficiently with OKTC Swap
Decentralized exchange functionality is built directly into the ecosystem through OKTC Swap, a non-custodial token swap interface that enables seamless trading of OKT and other supported tokens.
With an intuitive UI and low slippage rates, OKTC Swap supports automated market maker (AMM) mechanics that empower users to trade assets without intermediaries. Liquidity providers can also earn rewards by contributing to trading pools.
Key features:
- Real-time price quotes
- Gas-efficient swaps
- Open-source smart contracts
- Integrated wallet connectivity
This service lowers barriers for users entering the Web3 space while offering advanced trading options for experienced participants.
👉 Access powerful swap and liquidity tools on OKTC.
Leverage Oracle Services for Real-World Data
Smart contracts often require external data to function effectively—such as price feeds, weather data, or sports results. The OKTC Oracle system bridges this gap by securely delivering off-chain information to on-chain applications.
By integrating oracle services, developers can build robust DeFi platforms that rely on accurate market prices, insurance dApps that respond to real-world events, or prediction markets that settle based on verifiable outcomes.
The oracle network ensures data authenticity through cryptographic proofs and decentralized aggregation mechanisms, minimizing manipulation risks.
Query Blockchain Data Using Subgraphs
Efficient data indexing is critical for dApp performance. The OKTC Subgraph allows developers to create open APIs (called subgraphs) that organize blockchain data into easily queryable formats using GraphQL.
Instead of scanning the entire blockchain for relevant events, applications can pull precise datasets—such as user transaction history or token transfer logs—in milliseconds. This dramatically improves frontend responsiveness and backend efficiency.
Subgraphs are particularly useful for:
- Dashboard development
- Analytics platforms
- Portfolio trackers
- NFT gallery displays
Creating and publishing a subgraph enhances discoverability and encourages broader ecosystem participation.
Essential Wallets and Development Tools
A thriving developer ecosystem depends on accessible tooling. OKTC supports a wide range of wallets and development environments:
Wallet Integration
- OKX Wallet: A secure browser extension supporting OKT and EVM-compatible assets.
- MetaMask: Widely used wallet with easy configuration for OKTC via custom RPC settings.
- Also compatible with hardware wallets like Ledger when configured properly.
Development Frameworks
- Remix: Browser-based IDE ideal for writing, testing, and deploying smart contracts.
- Hardhat: Full-stack Ethereum development environment with debugging and testing suites.
- Truffle: Popular framework for compiling, deploying, and managing smart contracts.
Additional tools include Ganache for local testing and InfStones for setting up private RPC nodes.
Debug Smart Contracts Using EVM Tracing
One of the most powerful debugging capabilities on OKTC is EVM tracing, which allows developers to step through contract execution at the opcode level. This feature is invaluable when diagnosing reverts, unexpected behavior, or gas optimization opportunities.
Using tools like Hardhat together with EVM trace outputs, developers can:
- Inspect state changes during execution
- Identify costly operations
- Pinpoint exact lines of code causing failures
A detailed tutorial covers how to set up EVM tracing on OKTC Mainnet using forked environments—enabling safe testing without affecting live contracts.
Gas Back Initiative for Developers
To encourage innovation, OKTC runs a Gas Back Initiative that refunds deployment costs for qualifying smart contract developers. This incentive program reduces financial barriers for startups and independent builders launching new projects on the network.
Participants receive partial or full reimbursement of gas fees after successful deployment and verification of their contracts. The initiative fosters long-term ecosystem growth by supporting early-stage development efforts.
Eligibility criteria and application processes are outlined in the official forum post, which also includes community feedback and success stories.
Frequently Asked Questions (FAQs)
How do I connect my wallet to the OKTC network?
You can add OKTC manually in MetaMask by entering the RPC URL (https://exchainrpc.okex.org), Chain ID (66), and currency symbol (OKT). Alternatively, use Chainlist.org to auto-detect and configure the network.
Can I use Hardhat to fork the OKTC Mainnet?
Yes. By configuring Hardhat to use the OKTC RPC endpoint, you can create a local fork of the mainnet for testing purposes. Detailed tutorials are available in the developer forum.
What is the native token of OKTC?
The native token is OKT, used for paying transaction fees, staking, governance, and participating in DeFi applications.
Is OKTC EVM-compatible?
Yes. OKTC fully supports the Ethereum Virtual Machine, meaning any dApp built for Ethereum can be deployed on OKTC with minimal modifications.
How do I deploy a smart contract on OKTC?
Use tools like Remix or Hardhat to compile your Solidity code, then deploy via connected wallet using the OKTC RPC endpoint. Verify your contract on the block explorer afterward.
Where can I find community support and updates?
The official OKT Club forum hosts developer discussions, tutorials, announcements, and feedback channels.
👉 Join the next wave of blockchain innovation—start building on OKTC now.