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

# Pool creation fee (V1)

> Fetch the current SaucerSwap V1 pool creation fee from the factory contract in tinycent and convert it to HBAR with the mirror node exchange rate API.

The following code demonstrates how to accurately fetch the current pool creation fee in HBAR using a combination of JSON RPC and REST API. The pool creation fee is used when [creating a new liquidity pool](/developers/v1/liquidity/create-a-new-pool).

<Info>
  The fee for creating V1 liquidity pools is \$50 (as of July 2026), paid in HBAR. Always fetch the current value on-chain. The exchange rate information is used to accurately determine the equivalent value in HBAR.
</Info>

<Note>
  The `pairCreateFee()` function will return the current fee expressed in **Tinycent** (US).
</Note>

*No gas cost — read-only call.*

<Tabs>
  <Tab title="JSON RPC">
    Resources:

    * [SaucerSwap deployed contract IDs](/developers/contracts)
    * [Ethers.js docs (v6)](https://docs.ethers.org/v6/)
    * [Hedera JSON RPC Relay](https://docs.hedera.com/evm/tutorials/intermediate/json-rpc-connections)
    * [Hedera REST API](https://docs.hedera.com/hedera/sdks-and-apis/rest-api)

    ```typescript theme={null}
    import * as ethers from 'ethers'; //V6

    //Set one of Hedera's JSON RPC Relay as the provider
    const provider = new ethers.JsonRpcProvider(hederaJsonRelayUrl, '', {
      batchMaxCount: 1, //workaround for V6
    });

    //load ABI data containing Factory's pairCreateFee function
    const interfaces = new ethers.Interface(abi);

    //get pool creation fee in tinycent
    const factoryContract = new ethers.Contract(factoryEvmAddress, interfaces.fragments, provider);
    const result = await factoryContract.pairCreateFee();
    const tinycent = Number(result); //amount in tinycent (US)

    //get the current exchange rate via REST API
    const url = `${mirrorNodeBaseUrl}/api/v1/network/exchangerate`;
    const response = await axios.get(url);
    const currentRate = response.data.current_rate;
    const centEquivalent = Number(currentRate.cent_equivalent);
    const hbarEquivalent = Number(currentRate.hbar_equivalent);
    const centToHbarRatio = centEquivalent/hbarEquivalent;

    //calculate the fee in terms of HBAR
    const tinybar = BigNumber(tinycent / centToHbarRatio).decimalPlaces(0);
    const poolCreateFeeInHbar = Hbar.from(tinybar, HbarUnit.Tinybar);
    console.log(`Pool creation fee: ${poolCreateFeeInHbar.toString(HbarUnit.Hbar)}`);
    ```
  </Tab>
</Tabs>

## Next steps

<CardGroup cols={2}>
  <Card title="Create a new pool (V1)" href="/developers/v1/liquidity/create-a-new-pool">
    Use the fee when creating a new pool.
  </Card>

  <Card title="Contract deployments" href="/developers/contracts">
    Factory and router IDs for mainnet and testnet.
  </Card>
</CardGroup>