# runes\_estimateMint

Use the `runes_estimateMint` method to estimate the cost of a Rune mint order for your user, before executing it.

You can specify the characteristics of the Runes mint order you wish to estimate, by passing an `EstimateMintParams` object to the method, with the below properties:

<table><thead><tr><th width="243">EstimateMintParams </th><th>Description</th></tr></thead><tbody><tr><td><code>runeName</code></td><td>a string representing the <a href="https://docs.ordinals.com/runes.html#name">name of the Rune </a>to mint</td></tr><tr><td><code>repeats</code></td><td>a number representing the number of mint transactions to create. Every mint transaction creates a <a href="https://docs.ordinals.com/runes.html#amount">fixed amount </a>of new units of a rune, you can use <code>repeats</code> to mint a multiple of that amount. <br><span data-gb-custom-inline data-tag="emoji" data-code="2139">ℹ️</span> Note that there is a 4000 repeat limit per order</td></tr><tr><td><code>destinationAddress</code></td><td>The Bitcoin address to which the minted runes should be allocated.<br><span data-gb-custom-inline data-tag="emoji" data-code="2139">ℹ️</span>If minting Runes for your user, you can fetch their wallet addresses with the <a href="/pages/2dsMTr3ckRbH0zzw4vCK">getAccounts</a> method. <br><span data-gb-custom-inline data-tag="emoji" data-code="26a0">⚠️</span> We recommend managing runes holdings on taproot/ordinal addresses.</td></tr><tr><td><code>feeRate</code> </td><td>a number representing the desired fee rate to set for the Rune mint transaction(s), in sats per vbytes</td></tr><tr><td><code>appServiceFee</code> (<span data-gb-custom-inline data-tag="emoji" data-code="2139">ℹ️</span> optional)</td><td>a number representing the sats value of the fee to charge your user for your service. </td></tr><tr><td><code>appServiceFeeAddress</code> (<span data-gb-custom-inline data-tag="emoji" data-code="2139">ℹ️</span> optional)</td><td>a string representing the Bitcoin address which will receive the  <code>appServiceFee</code>, if a fee is specified</td></tr><tr><td><code>network</code> (<span data-gb-custom-inline data-tag="emoji" data-code="2139">ℹ️</span> optional)</td><td>a string representing the Bitcoin network to use for the mint runes transactions: <code>'Mainnet'</code> or <code>'Testnet'</code></td></tr></tbody></table>

<pre class="language-typescript"><code class="lang-typescript"><strong>import { request } from "sats-connect";
</strong>
    const response = await request('runes_estimateMint', {
      destinationAddress: ordinalsAddress,
      feeRate: +feeRate,
      repeats: +repeats,
      runeName: runeName,
    });

    if (response.status === 'success') {
      setTotalCost(response.result.totalCost);
      setTotalSize(response.result.totalSize);
    } else {
      console.error(response.error);
      alert('Error Fetching Estimate. See console for details.');
    }
</code></pre>

The `runes_estimateMint` method will **not** trigger any mint operation or prompt your user to sign any transaction. It will return an `EstimateMintResponse` object, intended for you and your user to anticipate the mint costs and their breakdown:

<table><thead><tr><th width="296">EstimateMintResponse property </th><th>Description</th></tr></thead><tbody><tr><td><code>totalSize</code></td><td>a number representing the total size of the mint transaction(s), in vbytes </td></tr><tr><td><code>totalCost</code></td><td>a number representing the total cost of the mint transaction(s) in sats</td></tr><tr><td><code>costBreakdown</code></td><td><p>An object representing the cost breakdown of the mint transaction(s), with the below properties:</p><ul><li><code>postage</code> a number representing the total size of the Rune UTXOs minted, in sats</li><li><code>networkFee</code> a number representing the total network fee for the mint transaction(s), in sats</li><li><code>serviceFee</code> a number representing the total Sats Connect fee for processing the mint order, in sats</li><li><code>appServiceFee</code> a number representing the optional service fee your app charges the user for the mint order</li></ul></td></tr></tbody></table>

See the [runes\_mint](/sats-connect/bitcoin-methods/mint-runes/runes_mint.md) method if you wish to execute a Runes mint order after estimating its cost.


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