Comprehensive support for TRON policies and parsing is now live on Turnkey! As demand for global payments infrastructure grows, Turnkey is excited to support fintech and payment providers with the tools to confidently navigate the world's largest stablecoin network.
Understanding TRON and its importance in global crypto payments
TRON has emerged as a powerhouse in the global payments infrastructure, processing an astonishing volume of stablecoin transactions daily. Recent data shows USDT dominates 98.5% of stablecoins on the TRON network, with the blockchain processing $20 billion in average daily USDT transfers.
For fintech and payments teams looking to offer crypto services, TRON presents a massive opportunity. As transfer volumes continue to grow exponentially, the ability to securely manage and validate these transactions has become business-critical.
The power of Turnkey’s TRON policy engine
Turnkey is secure, flexible, and scalable key management infrastructure for teams looking to integrate embedded wallets into their application or streamline their digital asset operations with transaction automation. Ensuring that users have a seamless and protected product experience while transacting with crypto is critical, and stronger risk management is essential when it comes to assessing how to store, access, and generate private keys.
Our policy engine is the foundation for flexible controls and permissions within every organization built on Turnkey – and it’s now fully compatible with TRON. The TRON transaction parser adds additional support, providing detailed insights into existing transaction structures, and breaking down complex onchain data into clear, actionable information.
Turnkey's TRON policy engine enables builders to confidently expand their crypto offerings while maintaining the rigorous security standards their customers and regulators expect. TRON parsing enables organizations to implement sophisticated policies and user flows such as:
- Allowlisting and denials: Restrict transfers to pre-approved addresses only
- Built-in transaction limits and user safety controls: Implement tiered approval systems based on transaction value, and ensure transaction parameters like token amounts fall within acceptable ranges
- Anti-fraud measures with smart contract validation: Verify contract addresses and function calls to prevent interactions with malicious contracts
- Transaction-based multi-party approvals: Coordinate approvals from multiple parties based on transaction characteristics
For TRON developers, this is an all-in-one tool to create a fully whitelabeled (either non-custodial or custodial) wallet solution for their product, while letting end users remain in full control of their private keys.
When thinking about wallet infrastructure, security should be the number one priority. That’s why over 100+ teams including Alchemy, Moonshot, and Mural Pay utilize Turnkey’s robust policy engine to provide a critical layer of protection and governance for any action requiring a private key. Turnkey can be easily integrated to prevent unauthorized transactions, enforce transaction limits, ensure that transactions adhere to regulatory frameworks, and automate transaction verification to reduce human error.
How it works
The TRON policy engine is built with performance and reliability in mind and includes TRON transaction parsing for more granular control over policies. Written in Rust, it offers exceptional speed and memory safety while maintaining compatibility with Turnkey's existing key management infrastructure.
Specifically, the transaction parser comprehensively deconstructs transactions to reveal:
- Reference block data
- Expiration/timestamp
- Contract type identification
- Address identification for senders and recipients
- Value transfer amounts
- Smart contract function calls and parameters
It also supports critical transaction types, including:
- Native TRX transfers using TransferContract
- Smart contract interactions via TriggerSmartContract, essential for TRC-20 tokens like USDT
Traditional approaches to transaction signing often treat the raw transaction as an opaque hex string. This creates risks, as signers may not understand what they're authorizing. Turnkey's approach on TRON enables transparency and verification at every step.
Our TRON parser transforms cryptic transaction hexes like:
```0a020de92208d48d31e6ab52a70740a081f891e0325a65080112610a2d747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5472616e73666572436f6e747261637412300a15414fb5bff9601f3e7c272bba5be3f7b84876c39c4b121541f1cd33c4802dec54475c555f95e9403a62fd3553186470c0acf491e032```Into clear, human-readable structures that can be used via Turnkey’s policy engine to create policies supporting TRON transactions:
```{
ref_block_byes: 0de9
ref_block_hash: d48d31e6ab52a707
expiration: 1743794340000
timestamp: 1743794280000
data:
fee_limit: 0
contract: {
to_address: TY1jfzP3s94oSzYECC89EFn17iA8S4imVZ
owner_address: THEg7RCHyDaNxaLrogF3oYu1WurunNyF4L
amount: 100
}
}```The addition of TRON policies joins our existing support for multiple blockchains, creating a comprehensive policy engine across TRON, EVM, and SVM that is equipped to handle diverse institutional needs.
TRON for Fintech and payments on crypto rails
With TRON's recent introduction of gas-free USDT transfers in early 2025, the network is perfectly poised to support fintech and payments teams looking to expand their digital asset operations. This development, combined with TRON's evolution from a primarily USDT transfer network to a growing DeFi ecosystem with over $23 billion in TVL, represents a significant opportunity for organizations looking to bridge traditional and onchain payment rails.
For payment processors, banks, and fintech companies, the ability to participate safely in this ecosystem is no longer optional—it's a competitive necessity. As digital assets become increasingly integrated into mainstream payment flows, robust transaction validation will be the foundation that enables an everyday user to confidently engage with blockchain networks.
By powering detailed transaction parsing and policy enforcement for the world's second-largest stablecoin network, we're helping fintech and payments teams build the next generation of global money movement solutions. The future of payments is secured by Turnkey.
Get started
Ready to get started? Start integrating Turnkey by checking out our docs, and learning more about how to write TRON-specific policies with our examples here. Additionally, our TRON parser is available on GitHub.
If you’re looking to learn more, contact our sales team to learn how our policy engine can enhance your organization's security and compliance posture.
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