> ## Documentation Index
> Fetch the complete documentation index at: https://docs.train.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Deployments

> Live and in-progress TRAIN Protocol contract deployments across every supported network

TRAIN's HTLC contracts are deployed deterministically wherever possible (CreateX on EVM chains, native contract-ID determinism on Fuel), so all EVM chains share the same `Train` contract address. The current release is **v3**. Deployment source of truth lives in the [contracts repository](https://github.com/TrainProtocol/contracts) — `main` carries the latest state of every production-track network, while early-stage networks are developed on their own `main-add-<network>` branch. The contracts have not yet been externally audited. To learn how the `TrainRouter` powers gasless swaps, see [Gasless Flows](/protocol/gasless).

<Tabs>
  <Tab title="Mainnets">
    ### Atomic Swap (HTLC) Contracts

    <AccordionGroup>
      <Accordion title="EVM: Ethereum">
        | Contract | Address                                      | Explorer                                                                             |
        | -------- | -------------------------------------------- | ------------------------------------------------------------------------------------ |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://etherscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: Arbitrum One">
        | Contract | Address                                      | Explorer                                                                            |
        | -------- | -------------------------------------------- | ----------------------------------------------------------------------------------- |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://arbiscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: OP Mainnet">
        | Contract | Address                                      | Explorer                                                                                        |
        | -------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------- |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://optimistic.etherscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: Base">
        | Contract | Address                                      | Explorer                                                                             |
        | -------- | -------------------------------------------- | ------------------------------------------------------------------------------------ |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://basescan.org/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: Polygon PoS">
        | Contract | Address                                      | Explorer                                                                                |
        | -------- | -------------------------------------------- | --------------------------------------------------------------------------------------- |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://polygonscan.com/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: BSC">
        | Contract | Address                                      | Explorer                                                                            |
        | -------- | -------------------------------------------- | ----------------------------------------------------------------------------------- |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://bscscan.com/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8#code) |
      </Accordion>

      <Accordion title="EVM: Robinhood">
        | Contract | Address                                      | Explorer                                                                                         |
        | -------- | -------------------------------------------- | ------------------------------------------------------------------------------------------------ |
        | Train    | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://robinhoodchain.blockscout.com/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
      </Accordion>

      <Accordion title="CairoVM: Starknet">
        | Contract | Address                                                             | Explorer                                                                                                  |
        | -------- | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- |
        | Train    | `0x397630513a04161f0f73bc1aaf76c6e10f85d8b17b42d00d11e8767a1cf5255` | [View](https://voyager.online/contract/0x397630513a04161f0f73bc1aaf76c6e10f85d8b17b42d00d11e8767a1cf5255) |
      </Accordion>

      <Accordion title="FuelVM: Fuel Ignition">
        | Contract | Address                                                              | Explorer                                                                                                          |
        | -------- | -------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
        | Train    | `0x445464bf4d8f2ad1cdffefa8345438f6769c44fc4aedf0eb9c2e34f5756f5750` | [View](https://app.fuel.network/contract/0x445464bf4d8f2ad1cdffefa8345438f6769c44fc4aedf0eb9c2e34f5756f5750/code) |
      </Accordion>

      <Accordion title="Tempo">
        | Contract | Address                                      | Explorer                                                                             |
        | -------- | -------------------------------------------- | ------------------------------------------------------------------------------------ |
        | Train    | `0xCb74407724c463EAA9bC661818364b532F8B5Cb5` | [View](https://explore.tempo.xyz/address/0xCb74407724c463EAA9bC661818364b532F8B5Cb5) |
      </Accordion>
    </AccordionGroup>
  </Tab>

  <Tab title="Testnets">
    ### Atomic Swap (HTLC) Contracts

    <AccordionGroup>
      <Accordion title="EVM: Ethereum Sepolia">
        | Contract            | Address                                      | Explorer                                                                                |
        | ------------------- | -------------------------------------------- | --------------------------------------------------------------------------------------- |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://sepolia.etherscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://sepolia.etherscan.io/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://sepolia.etherscan.io/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: Arbitrum Sepolia">
        | Contract            | Address                                      | Explorer                                                                               |
        | ------------------- | -------------------------------------------- | -------------------------------------------------------------------------------------- |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://sepolia.arbiscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://sepolia.arbiscan.io/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://sepolia.arbiscan.io/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: Base Sepolia">
        | Contract            | Address                                      | Explorer                                                                                |
        | ------------------- | -------------------------------------------- | --------------------------------------------------------------------------------------- |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://sepolia.basescan.org/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://sepolia.basescan.org/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://sepolia.basescan.org/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: OP Sepolia">
        | Contract            | Address                                      | Explorer                                                                                         |
        | ------------------- | -------------------------------------------- | ------------------------------------------------------------------------------------------------ |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://sepolia-optimism.etherscan.io/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://sepolia-optimism.etherscan.io/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://sepolia-optimism.etherscan.io/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: BSC Testnet">
        | Contract            | Address                                      | Explorer                                                                               |
        | ------------------- | -------------------------------------------- | -------------------------------------------------------------------------------------- |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://testnet.bscscan.com/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://testnet.bscscan.com/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://testnet.bscscan.com/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: Linea Sepolia">
        | Contract            | Address                                      | Explorer                                                                                   |
        | ------------------- | -------------------------------------------- | ------------------------------------------------------------------------------------------ |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://sepolia.lineascan.build/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://sepolia.lineascan.build/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://sepolia.lineascan.build/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: Monad Testnet">
        | Contract            | Address                                      | Explorer                                                                                 |
        | ------------------- | -------------------------------------------- | ---------------------------------------------------------------------------------------- |
        | Train               | `0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8` | [View](https://testnet.monadscan.com/address/0x265978c3e2E5dB9C3Ea665cC40C5925A5fc13Ee8) |
        | TrainRouter         | `0xF406475230bE1A65d06bd87A2724F78F4b6A2928` | [View](https://testnet.monadscan.com/address/0xF406475230bE1A65d06bd87A2724F78F4b6A2928) |
        | ConstantPayoutCurve | `0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C` | [View](https://testnet.monadscan.com/address/0xf5522F01B44D95f3A8d8be5d78F3eee91d26543C) |
      </Accordion>

      <Accordion title="EVM: Tron Nile">
        | Contract            | Address                              | Explorer                                                                        |
        | ------------------- | ------------------------------------ | ------------------------------------------------------------------------------- |
        | Train               | `TRooTQxWa3pgP6oA5QiyASxGKcRFRKY8k9` | [View](https://nile.tronscan.org/#/contract/TRooTQxWa3pgP6oA5QiyASxGKcRFRKY8k9) |
        | TrainRouter         | `TE8xNnkiWu71q6rs1mSYLV9Q5ZRaxTwHWX` | [View](https://nile.tronscan.org/#/contract/TE8xNnkiWu71q6rs1mSYLV9Q5ZRaxTwHWX) |
        | ConstantPayoutCurve | `TXnXbz7UKN3KAJV8yNZtkFsHmzBuQ3hSu9` | [View](https://nile.tronscan.org/#/contract/TXnXbz7UKN3KAJV8yNZtkFsHmzBuQ3hSu9) |
      </Accordion>

      <Accordion title="Tempo Moderato">
        | Contract            | Address                                      | Explorer                                                                                     |
        | ------------------- | -------------------------------------------- | -------------------------------------------------------------------------------------------- |
        | Train               | `0xCb74407724c463EAA9bC661818364b532F8B5Cb5` | [View](https://explore.testnet.tempo.xyz/address/0xCb74407724c463EAA9bC661818364b532F8B5Cb5) |
        | ConstantPayoutCurve | `0x758347A30b49d353F9C4dc8189F5c8f91FeaB27b` | [View](https://explore.testnet.tempo.xyz/address/0x758347A30b49d353F9C4dc8189F5c8f91FeaB27b) |
      </Accordion>

      <Accordion title="CairoVM: Starknet Sepolia">
        | Contract            | Address                                                             | Explorer                                                                                                          |
        | ------------------- | ------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- |
        | Train               | `0x331d2d504d582a6918a70928fa31207f73600f45e8089310283223f439d52b0` | [View](https://sepolia.voyager.online/contract/0x331d2d504d582a6918a70928fa31207f73600f45e8089310283223f439d52b0) |
        | TrainRouter         | `0x1049d123293e9c182397ba1b5de795ee35c9ca0a1f2fecfec2eca14e38cecc8` | [View](https://sepolia.voyager.online/contract/0x1049d123293e9c182397ba1b5de795ee35c9ca0a1f2fecfec2eca14e38cecc8) |
        | ConstantPayoutCurve | `0x27e92c85cf5da7861549ceba60096737a773f9b94f49046604ff0a0035cc351` | [View](https://sepolia.voyager.online/contract/0x27e92c85cf5da7861549ceba60096737a773f9b94f49046604ff0a0035cc351) |
      </Accordion>

      <Accordion title="FuelVM: Fuel Sepolia">
        | Contract            | Address                                                              | Explorer                                                                                                                  |
        | ------------------- | -------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
        | Train               | `0x445464bf4d8f2ad1cdffefa8345438f6769c44fc4aedf0eb9c2e34f5756f5750` | [View](https://app-testnet.fuel.network/contract/0x445464bf4d8f2ad1cdffefa8345438f6769c44fc4aedf0eb9c2e34f5756f5750/code) |
        | ConstantPayoutCurve | `0xfc598e7d022590a0eecc2f58c9ba865ace7c2ca5acae881dced5f2dbb37eb33b` | [View](https://app-testnet.fuel.network/contract/0xfc598e7d022590a0eecc2f58c9ba865ace7c2ca5acae881dced5f2dbb37eb33b/code) |
      </Accordion>

      <Accordion title="SVM: Solana Devnet">
        | Contract            | Address                                        | Explorer                                                                                                |
        | ------------------- | ---------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
        | Train               | `2cQYFAiud2LBg3r6MxKPJ1oS83yyrRwDsgxQSwhL97LJ` | [View](https://explorer.solana.com/address/2cQYFAiud2LBg3r6MxKPJ1oS83yyrRwDsgxQSwhL97LJ?cluster=devnet) |
        | ConstantPayoutCurve | `Dp4ReoYGG8VRXpnst4vT8g6UDVwUicJwAuiikQWk8HMF` | [View](https://explorer.solana.com/address/Dp4ReoYGG8VRXpnst4vT8g6UDVwUicJwAuiikQWk8HMF?cluster=devnet) |
      </Accordion>

      <Accordion title="Aztec Testnet">
        | Contract            | Address                                                              | Explorer                                                                                                             |
        | ------------------- | -------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------- |
        | Train               | `0x1e36ef80d7d02ab8ed33aa07635f85152e015b9c4b09fbf5fe54ec11154d3133` | [View](https://aztecscan.xyz/contracts/instances/0x1e36ef80d7d02ab8ed33aa07635f85152e015b9c4b09fbf5fe54ec11154d3133) |
        | ConstantPayoutCurve | `0x0f39abe60a09d7750b0f3fc1dada72f151d815f10f63a4413db9a9e2cb5d2fc7` | [View](https://aztecscan.xyz/contracts/instances/0x0f39abe60a09d7750b0f3fc1dada72f151d815f10f63a4413db9a9e2cb5d2fc7) |
      </Accordion>
    </AccordionGroup>
  </Tab>

  <Tab title="Roadmap">
    Networks below have contract implementations under active development but no live deployment yet.

    | Network | Status |
    | ------- | ------ |
    | TON     | WIP    |
    | Stacks  | WIP    |
    | Bitcoin | WIP    |
    | Sui     | WIP    |
    | Aptos   | WIP    |
    | XRP     | WIP    |
    | Zcash   | WIP    |
  </Tab>
</Tabs>