Add MultiMesh fees adapter

fees/multimesh/index.ts

@@ -0,0 +1,43 @@
+import { FetchOptions, SimpleAdapter } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+
+const LIFI_FEE_COLLECTOR: Partial<Record<string, string>> = {
+  [CHAIN.ETHEREUM]: "0xbD6C7B0d2f68c2b7805d88388319cfB6EcB50eA9",
+  [CHAIN.ARBITRUM]: "0x8021E9F5E4D0C9A08E8b53B4E3776B65b1d89B59",
+  [CHAIN.POLYGON]:  "0xbD6C7B0d2f68c2b7805d88388319cfB6EcB50eA9",
+  [CHAIN.OPTIMISM]: "0xbD6C7B0d2f68c2b7805d88388319cfB6EcB50eA9",
+  [CHAIN.BSC]:      "0xbD6C7B0d2f68c2b7805d88388319cfB6EcB50eA9",
+};
+const MULTIMESH_INTEGRATOR = "0x552008c0f6870c2f77e5cC1d2eb9bdff03e30Ea0";
+const FEES_COLLECTED_EVENT = "event FeesCollected(address indexed _token, address indexed _integrator, uint256 _integratorFee, uint256 _lifiFee)";
+
+const fetch = async (options: FetchOptions) => {
+  const dailyFees = options.createBalances();
+  const dailyRevenue = options.createBalances();
+  const logs = await options.getLogs({
+    target: LIFI_FEE_COLLECTOR[options.chain] ?? "0xbD6C7B0d2f68c2b7805d88388319cfB6EcB50eA9",
+    eventAbi: FEES_COLLECTED_EVENT,
+    onlyArgs: true,
+  });
+  const multimeshLogs = logs.filter(
+    (log: any) => log._integrator.toLowerCase() === MULTIMESH_INTEGRATOR.toLowerCase()
+  );
+  for (const log of multimeshLogs) {
+    dailyFees.add(log._token, log._integratorFee + log._lifiFee);
+    dailyRevenue.add(log._token, log._integratorFee);
+  }
+  return { dailyFees, dailyRevenue };
+};
+
+const adapter: SimpleAdapter = {
+  version: 2,
+  fetch,
+  chains: [CHAIN.ETHEREUM, CHAIN.ARBITRUM, CHAIN.POLYGON, CHAIN.OPTIMISM, CHAIN.BSC],
+  start: "2025-03-01",
+  methodology: {
+    Fees: "Total fees collected on swaps routed through MultiMesh via LI.FI.",
+    Revenue: "MultiMesh's 15bps integrator fee on all cross-chain swaps.",
+  },
+};
+
+export default adapter;