diff --git a/fees/frankencoin/index.ts b/fees/frankencoin/index.ts
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+++ b/fees/frankencoin/index.ts
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+import { FetchOptions, SimpleAdapter } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+import { request, gql } from "graphql-request";
+
+// GraphQL endpoint for Frankencoin
+const FRANKENCOIN_GRAPH_URL = "https://ponder.test.frankencoin.com"; // TODO: change to production URL
+
+// ZCHF token address on Ethereum
+const ZCHF_ADDRESS = "0xB58E61C3098d85632Df34EecfB899A1Ed80921cB";
+
+const PROFIT_LOSS_QUERY = gql`
+  query GetProfitLoss {
+    frankencoinProfitLosss(
+      orderBy: "count",
+      orderDirection: "desc",
+      limit: 1,
+    ) {
+      items {
+        profits
+        losses
+      }
+    }
+  }
+`;
+
+const fetch = async (options: FetchOptions) => {
+  const dailyFees = options.createBalances();
+  const dailyRevenue = options.createBalances();
+
+  try {
+    const { frankencoinProfitLosss } = await request(FRANKENCOIN_GRAPH_URL, PROFIT_LOSS_QUERY);
+    
+    const profits = frankencoinProfitLosss?.items?.[0]?.profits ?? "0";
+    const losses = frankencoinProfitLosss?.items?.[0]?.losses ?? "0";
+    
+    // Convert string values to BigInt for calculations
+    const profitsBigInt = BigInt(profits);
+    const lossesBigInt = BigInt(losses);
+    
+    // Fees are the total profits in ZCHF
+    dailyFees.add(ZCHF_ADDRESS, profitsBigInt);
+    
+    // Revenue is profits minus losses in ZCHF
+    const revenue = profitsBigInt - lossesBigInt;
+    dailyRevenue.add(ZCHF_ADDRESS, revenue);
+    
+    return {
+      dailyFees,
+      dailyRevenue,
+      dailyProtocolRevenue: dailyRevenue,
+    };
+  } catch (error) {
+    console.error("Error fetching Frankencoin data:", error);
+    return {
+      dailyFees,
+      dailyRevenue,
+      dailyProtocolRevenue: dailyRevenue,
+    };
+  }
+};
+
+const adapter: SimpleAdapter = {
+  version: 2,
+  adapter: {
+    [CHAIN.ETHEREUM]: {
+      fetch,
+      start: '2023-10-28',
+      meta: {
+        methodology: {
+          Fees: "Total profits generated by the Frankencoin protocol in ZCHF tokens",
+          Revenue: "Net revenue calculated as profits minus losses in ZCHF tokens",
+          ProtocolRevenue: "All net revenue is retained by the protocol in ZCHF tokens",
+        }
+      }
+    }
+  }
+};
+
+export default adapter; 
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