Introduction to Tether Integration
We appreciate your interest in integrating Tether (USDT) tokens into your platform. Tether tokens operate across multiple blockchains and maintain 1:1 parity—meaning 1 USDT on Blockchain X equals 1 USDT on Blockchain Y.
For optimal integration, we recommend supporting as many protocols as your platform allows. Clearly communicate supported protocols to users via your platform and public documentation.
Currently Supported Asset Protocols
Strategic Protocol Updates
Tether periodically evaluates blockchain support to align with community needs and innovation. Key updates include:
- August 17, 2023: Discontinued support for Kusama, Bitcoin Cash SLP, and Omni Layer.
- June 24, 2024: Ceased minting USDT on EOS and Algorand.
- November 27, 2024: Discontinued EUR₮ support, with redemptions accepted until November 27, 2025.
Transition Timeline
- September 1, 2025: Tether will no longer accept redemptions for USDT/EUR₮ on Omni, Kusama, SLP, EOS, or Algorand.
- Users can swap frozen assets via supported platforms like Bitfinex.
👉 Explore Tether’s blockchain support updates
Integration Guides by Blockchain
1. Omni Protocol (Bitcoin Blockchain)
- Property IDs: USD₮ #31 | EUR₮ #41
- Tools: Use the Omni Core client.
- Note: Fake IDs exist—verify property numbers strictly.
2. ERC20 Tokens
Ethereum Network
- USD₮:
0xdac17f958d2ee523a2206206994597c13d831ec7 - EUR₮:
0xC581b735A1688071A1746c968e0798D642EDE491 - Legacy Note: Transfer functions lack boolean returns—use SafeERC20 library.
Avalanche, Cosmos, Celo, Kaia
- Contract addresses provided for each chain (e.g., Avalanche:
0x9702230a8ea53601f5cd2dc00fdbc13d4df4a8c7).
3. TRC20 (Tron Blockchain)
4. Other Blockchains
- Solana:
Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB - Polkadot AssetHub: Asset ID 1984.
- Aptos: Contract address
0xf73e887a8754f540ee6e1a93bdc6dde2af69fc7ca5de32013e89dd44244473cb.
👉 Compare blockchain fees for USDT transfers
FAQs
Q1: How do I redeem frozen USDT on discontinued blockchains?
A1: Swap assets via supported exchanges like Bitfinex before September 1, 2025.
Q2: What’s the difference between USDT-ERC20 and USDT-TRC20?
A2: Both are 1:1 pegged but operate on different chains (Ethereum vs. Tron), affecting transaction speed/cost.
Q3: Why did Tether discontinue EUR₮?
A3: To streamline resources toward high-demand stablecoins like USD₮.
Key Takeaways
- Multi-chain parity: USDT maintains 1:1 value across all supported blockchains.
- Stay updated: Follow Tether’s official announcements for protocol changes.
- Integration flexibility: Choose protocols aligning with your platform’s technical stack.
For redemption queries, contact Tether Support.