diff --git a/bchain/coins/avalanche/contract_batch_integration_test.go b/bchain/coins/avalanche/contract_batch_integration_test.go
deleted file mode 100644
index 17529a7b..00000000
--- a/bchain/coins/avalanche/contract_batch_integration_test.go
+++ /dev/null
@@ -1,33 +0,0 @@
-//go:build integration
-
-package avalanche
-
-import (
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/trezor/blockbook/bchain"
-	"github.com/trezor/blockbook/bchain/coins/eth"
-)
-
-func TestAvalancheErc20ContractBalancesIntegration(t *testing.T) {
-	cfg := bchain.LoadBlockchainCfg(t, "avalanche")
-	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
-		Name:     "avalanche",
-		RPCURL:   cfg.RpcUrl,
-		RPCURLWS: cfg.RpcUrlWs,
-		// Token-rich address on Avalanche C-Chain (balanceOf works for any address).
-		Addr: common.HexToAddress("0x60aE616a2155Ee3d9A68541Ba4544862310933d4"),
-		Contracts: []common.Address{
-			common.HexToAddress("0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7"), // WAVAX
-			common.HexToAddress("0xA7D7079b0FEAD91F3e65f86E8915Cb59c1a4C664"), // USDC.e
-			common.HexToAddress("0xc7198437980c041c805A1EDcbA50c1Ce5db95118"), // USDT.e
-			common.HexToAddress("0xd586e7f844cea2f87f50152665bcbc2c279d8d70"), // DAI.e
-			common.HexToAddress("0x49D5c2BdFfac6Ce2BFdB6640F4F80f226bc10bAB"), // WETH.e
-			common.HexToAddress("0x60781C2586D68229fde47564546784ab3fACA982"), // PNG
-		},
-		BatchSize:       100,
-		SkipUnavailable: true,
-		NewClient:       eth.NewERC20BatchIntegrationClient,
-	})
-}
diff --git a/bchain/coins/base/contract_batch_integration_test.go b/bchain/coins/base/contract_batch_integration_test.go
deleted file mode 100644
index 64bba2f3..00000000
--- a/bchain/coins/base/contract_batch_integration_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-//go:build integration
-
-package base_test
-
-import (
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/trezor/blockbook/bchain"
-	"github.com/trezor/blockbook/bchain/coins/eth"
-)
-
-func TestBaseErc20ContractBalancesIntegration(t *testing.T) {
-	cfg := bchain.LoadBlockchainCfg(t, "base")
-	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
-		Name:     "base",
-		RPCURL:   cfg.RpcUrl,
-		RPCURLWS: cfg.RpcUrlWs,
-		Addr:     common.HexToAddress("0x242E2d70d3AdC00a9eF23CeD6E88811fCefCA788"),
-		Contracts: []common.Address{
-			common.HexToAddress("0x4200000000000000000000000000000000000006"), // WETH
-			common.HexToAddress("0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"), // USDC
-			common.HexToAddress("0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb"), // DAI
-			common.HexToAddress("0x2ae3f1ec7f1f5012cfeab0185bfc7aa3cf0dec22"), // cbETH
-		},
-		BatchSize:       100,
-		SkipUnavailable: true,
-		NewClient:       eth.NewERC20BatchIntegrationClient,
-	})
-}
diff --git a/bchain/coins/bsc/contract_batch_integration_test.go b/bchain/coins/bsc/contract_batch_integration_test.go
deleted file mode 100644
index 69b2c040..00000000
--- a/bchain/coins/bsc/contract_batch_integration_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-//go:build integration
-
-package bsc_test
-
-import (
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/trezor/blockbook/bchain"
-	"github.com/trezor/blockbook/bchain/coins/eth"
-)
-
-func TestBNBSmartChainErc20ContractBalancesIntegration(t *testing.T) {
-	cfg := bchain.LoadBlockchainCfg(t, "bsc")
-	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
-		Name:     "bsc",
-		RPCURL:   cfg.RpcUrl,
-		RPCURLWS: cfg.RpcUrlWs,
-		Addr:     common.HexToAddress("0x21d45650db732cE5dF77685d6021d7D5d1da807f"),
-		Contracts: []common.Address{
-			common.HexToAddress("0xBB4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c"), // WBNB
-			common.HexToAddress("0x55d398326f99059fF775485246999027B3197955"), // USDT
-			common.HexToAddress("0xe9e7CEA3Dedca5984780Bafc599bd69ADd087d56"), // BUSD
-			common.HexToAddress("0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d"), // USDC
-			common.HexToAddress("0x1AF3F329e8BE154074D8769D1FFa4eE058B1DBc3"), // DAI
-		},
-		BatchSize:       100,
-		SkipUnavailable: true,
-		NewClient:       eth.NewERC20BatchIntegrationClient,
-	})
-}
diff --git a/bchain/coins/eth/contract_batch_integration_test.go b/bchain/coins/eth/contract_batch_integration_test.go
deleted file mode 100644
index c4d94a70..00000000
--- a/bchain/coins/eth/contract_batch_integration_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-//go:build integration
-
-package eth_test
-
-import (
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/trezor/blockbook/bchain"
-	"github.com/trezor/blockbook/bchain/coins/eth"
-)
-
-func TestEthereumTypeGetErc20ContractBalancesIntegration(t *testing.T) {
-	cfg := bchain.LoadBlockchainCfg(t, "ethereum")
-	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
-		Name:     "ethereum",
-		RPCURL:   cfg.RpcUrl,
-		RPCURLWS: cfg.RpcUrlWs,
-		// Token-rich EOA (CEX hot wallet) used as a stable address reference.
-		Addr: common.HexToAddress("0x28C6c06298d514Db089934071355E5743bf21d60"),
-		Contracts: []common.Address{
-			common.HexToAddress("0xA0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"), // USDC
-			common.HexToAddress("0xdAC17F958D2ee523a2206206994597C13D831ec7"), // USDT
-			common.HexToAddress("0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"), // WETH
-			common.HexToAddress("0x6B175474E89094C44Da98b954EedeAC495271d0F"), // DAI
-		},
-		BatchSize:       100,
-		SkipUnavailable: false,
-		NewClient:       eth.NewERC20BatchIntegrationClient,
-	})
-}
diff --git a/bchain/coins/optimism/contract_batch_integration_test.go b/bchain/coins/optimism/contract_batch_integration_test.go
deleted file mode 100644
index 786aee83..00000000
--- a/bchain/coins/optimism/contract_batch_integration_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-//go:build integration
-
-package optimism_test
-
-import (
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/trezor/blockbook/bchain"
-	"github.com/trezor/blockbook/bchain/coins/eth"
-)
-
-func TestOptimismErc20ContractBalancesIntegration(t *testing.T) {
-	cfg := bchain.LoadBlockchainCfg(t, "optimism")
-	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
-		Name:     "optimism",
-		RPCURL:   cfg.RpcUrl,
-		RPCURLWS: cfg.RpcUrlWs,
-		Addr:     common.HexToAddress("0xDF90C9B995a3b10A5b8570a47101e6c6a29eb945"),
-		Contracts: []common.Address{
-			common.HexToAddress("0x4200000000000000000000000000000000000006"), // WETH
-			common.HexToAddress("0x7F5c764cBc14f9669B88837ca1490cCa17c31607"), // USDC
-			common.HexToAddress("0x94b008aa00579c1307b0ef2c499ad98a8ce58e58"), // USDT
-			common.HexToAddress("0xDA10009cBd5D07dd0CeCc66161FC93D7c9000da1"), // DAI
-			common.HexToAddress("0x4200000000000000000000000000000000000042"), // OP
-		},
-		BatchSize:       100,
-		SkipUnavailable: true,
-		NewClient:       eth.NewERC20BatchIntegrationClient,
-	})
-}
diff --git a/tests/rpc/rpc.go b/tests/rpc/rpc.go
index 9cab43b2..b0745988 100644
--- a/tests/rpc/rpc.go
+++ b/tests/rpc/rpc.go
@@ -12,8 +12,10 @@ import (
 	"time"
 
 	mapset "github.com/deckarep/golang-set"
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/juju/errors"
 	"github.com/trezor/blockbook/bchain"
+	"github.com/trezor/blockbook/bchain/coins/eth"
 )
 
 var testMap = map[string]func(t *testing.T, th *TestHandler){
@@ -27,21 +29,31 @@ var testMap = map[string]func(t *testing.T, th *TestHandler){
 	"GetBestBlockHash":         testGetBestBlockHash,
 	"GetBestBlockHeight":       testGetBestBlockHeight,
 	"GetBlockHeader":           testGetBlockHeader,
+	"EthCallBatch":             testEthCallBatch,
 }
 
 type TestHandler struct {
+	Coin     string
 	Chain    bchain.BlockChain
 	Mempool  bchain.Mempool
 	TestData *TestData
 }
 
+type EthCallBatchData struct {
+	Address         string   `json:"address"`
+	Contracts       []string `json:"contracts"`
+	BatchSize       int      `json:"batchSize,omitempty"`
+	SkipUnavailable bool     `json:"skipUnavailable,omitempty"`
+}
+
 type TestData struct {
-	BlockHeight uint32                `json:"blockHeight"`
-	BlockHash   string                `json:"blockHash"`
-	BlockTime   int64                 `json:"blockTime"`
-	BlockSize   int                   `json:"blockSize"`
-	BlockTxs    []string              `json:"blockTxs"`
-	TxDetails   map[string]*bchain.Tx `json:"txDetails"`
+	BlockHeight  uint32                `json:"blockHeight"`
+	BlockHash    string                `json:"blockHash"`
+	BlockTime    int64                 `json:"blockTime"`
+	BlockSize    int                   `json:"blockSize"`
+	BlockTxs     []string              `json:"blockTxs"`
+	TxDetails    map[string]*bchain.Tx `json:"txDetails"`
+	EthCallBatch *EthCallBatchData     `json:"ethCallBatch,omitempty"`
 }
 
 func IntegrationTest(t *testing.T, coin string, chain bchain.BlockChain, mempool bchain.Mempool, testConfig json.RawMessage) {
@@ -57,6 +69,7 @@ func IntegrationTest(t *testing.T, coin string, chain bchain.BlockChain, mempool
 	}
 
 	h := TestHandler{
+		Coin:     coin,
 		Chain:    chain,
 		Mempool:  mempool,
 		TestData: td,
@@ -385,6 +398,39 @@ func testGetBlockHeader(t *testing.T, h *TestHandler) {
 	}
 }
 
+func testEthCallBatch(t *testing.T, h *TestHandler) {
+	data := h.TestData.EthCallBatch
+	if data == nil {
+		t.Fatal("ethCallBatch fixture missing")
+	}
+	if data.Address == "" {
+		t.Fatal("ethCallBatch.address missing")
+	}
+	if len(data.Contracts) == 0 {
+		t.Fatal("ethCallBatch.contracts missing")
+	}
+
+	cfg := bchain.LoadBlockchainCfg(t, h.Coin)
+	contracts := make([]common.Address, 0, len(data.Contracts))
+	for _, contract := range data.Contracts {
+		if contract == "" {
+			t.Fatal("ethCallBatch contract address missing")
+		}
+		contracts = append(contracts, common.HexToAddress(contract))
+	}
+
+	bchain.RunERC20BatchBalanceTest(t, bchain.ERC20BatchCase{
+		Name:            h.Coin,
+		RPCURL:          cfg.RpcUrl,
+		RPCURLWS:        cfg.RpcUrlWs,
+		Addr:            common.HexToAddress(data.Address),
+		Contracts:       contracts,
+		BatchSize:       data.BatchSize,
+		SkipUnavailable: data.SkipUnavailable,
+		NewClient:       eth.NewERC20BatchIntegrationClient,
+	})
+}
+
 func getMempool(t *testing.T, h *TestHandler) []string {
 	txs, err := h.Chain.GetMempoolTransactions()
 	if err != nil {
diff --git a/tests/rpc/testdata/arbitrum.json b/tests/rpc/testdata/arbitrum.json
index 3f5f791e..84055b2e 100644
--- a/tests/rpc/testdata/arbitrum.json
+++ b/tests/rpc/testdata/arbitrum.json
@@ -20,6 +20,15 @@
         "0x4905c5f124342aa2f18e0db56f40328737b2f6ed230dbdd39b596ac660a0ca82",
         "0xde9ac37615f9d13c957dac39ebf36ce58e14e0bed639911cb7422c7046cd8a76"
     ],
+    "ethCallBatch": {
+        "address": "0xf70da97812cb96acdf810712aa562db8dfa3dbef",
+        "contracts": [
+            "0x82aF49447D8a07e3bd95BD0d56f35241523fBab1",
+            "0xFF970A61A04b1cA14834A43f5de4533eBDDB5CC8",
+            "0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9",
+            "0xDA10009cBD5D07dd0CeCc66161FC93D7c9000da1"
+        ]
+    },
     "txDetails": {
         "0x67d497582571a24ba0c05079827159c34801d598120180c515162570ed0b775c": {
             "txid": "0x67d497582571a24ba0c05079827159c34801d598120180c515162570ed0b775c",
diff --git a/tests/rpc/testdata/avalanche.json b/tests/rpc/testdata/avalanche.json
index 0177e6b0..69a516e6 100644
--- a/tests/rpc/testdata/avalanche.json
+++ b/tests/rpc/testdata/avalanche.json
@@ -6,6 +6,17 @@
     "blockTxs": [
         "0x59a1c3ce0f901e71c4f1c88dc829e35d29ce900ae3a74366d16aedb4a2e33992"
     ],
+    "ethCallBatch": {
+        "address": "0x60aE616a2155Ee3d9A68541Ba4544862310933d4",
+        "contracts": [
+            "0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7",
+            "0xA7D7079b0FEAD91F3e65f86E8915Cb59c1a4C664",
+            "0xc7198437980c041c805A1EDcbA50c1Ce5db95118",
+            "0xd586e7f844cea2f87f50152665bcbc2c279d8d70",
+            "0x49D5c2BdFfac6Ce2BFdB6640F4F80f226bc10bAB",
+            "0x60781C2586D68229fde47564546784ab3fACA982"
+        ]
+    },
     "txDetails": {
         "0x59a1c3ce0f901e71c4f1c88dc829e35d29ce900ae3a74366d16aedb4a2e33992": {
             "txid": "0x59a1c3ce0f901e71c4f1c88dc829e35d29ce900ae3a74366d16aedb4a2e33992",
diff --git a/tests/rpc/testdata/base.json b/tests/rpc/testdata/base.json
index 8f92c4e6..a77f5b16 100644
--- a/tests/rpc/testdata/base.json
+++ b/tests/rpc/testdata/base.json
@@ -511,6 +511,15 @@
         "0x7cf686710921fbf4a07c8cff0df098402f75669d4ce42abc80742be909ee96f2",
         "0xdf70c1ba36d74eef05c830b6c7a455c310ac2312d6fc9467cd53dc661f51a4bf"
     ],
+    "ethCallBatch": {
+        "address": "0x242E2d70d3AdC00a9eF23CeD6E88811fCefCA788",
+        "contracts": [
+            "0x4200000000000000000000000000000000000006",
+            "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
+            "0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb",
+            "0x2ae3f1ec7f1f5012cfeab0185bfc7aa3cf0dec22"
+        ]
+    },
     "txDetails": {
         "0xc4e604ee9f9efcf229aeaf28d0f691a14edfc422c1d97710a31153d69c765f2d": {
             "txid": "0xc4e604ee9f9efcf229aeaf28d0f691a14edfc422c1d97710a31153d69c765f2d",
diff --git a/tests/rpc/testdata/bsc.json b/tests/rpc/testdata/bsc.json
index eae2bd09..72f4f340 100644
--- a/tests/rpc/testdata/bsc.json
+++ b/tests/rpc/testdata/bsc.json
@@ -7,6 +7,16 @@
         "0x970fec39c96e92669d68ac2366ffe9dab7314eefc075f1db760a9792a8bffa12",
         "0x05618ba2e7e98c6cb3a9d05e6e62c0983b430103c69f1045608e812730bd61fc"
     ],
+    "ethCallBatch": {
+        "address": "0x21d45650db732cE5dF77685d6021d7D5d1da807f",
+        "contracts": [
+            "0xBB4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c",
+            "0x55d398326f99059fF775485246999027B3197955",
+            "0xe9e7CEA3Dedca5984780Bafc599bd69ADd087d56",
+            "0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d",
+            "0x1AF3F329e8BE154074D8769D1FFa4eE058B1DBc3"
+        ]
+    },
     "txDetails": {
         "0x970fec39c96e92669d68ac2366ffe9dab7314eefc075f1db760a9792a8bffa12": {
             "txid": "0x970fec39c96e92669d68ac2366ffe9dab7314eefc075f1db760a9792a8bffa12",
diff --git a/tests/rpc/testdata/ethereum.json b/tests/rpc/testdata/ethereum.json
index bcbe12c6..acd03721 100644
--- a/tests/rpc/testdata/ethereum.json
+++ b/tests/rpc/testdata/ethereum.json
@@ -86,6 +86,15 @@
         "0x78e650563f2d2171a5d0b7612550ce27eda81ec6f99fb359f26e825dcce5a1cf",
         "0xb3762c6d6dd5a0b82ab270a8474accb6b3b5b5abe3fd7ea42b60594a2394708b"
     ],
+    "ethCallBatch": {
+        "address": "0x28C6c06298d514Db089934071355E5743bf21d60",
+        "contracts": [
+            "0xA0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
+            "0xdAC17F958D2ee523a2206206994597C13D831ec7",
+            "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
+            "0x6B175474E89094C44Da98b954EedeAC495271d0F"
+        ]
+    },
     "txDetails": {
         "0x3860498da623c650b1840b5137b1c2b689dfb2ce3bfb4b5d55c629ed8a99e81f": {
             "txid": "0x3860498da623c650b1840b5137b1c2b689dfb2ce3bfb4b5d55c629ed8a99e81f",
diff --git a/tests/rpc/testdata/optimism.json b/tests/rpc/testdata/optimism.json
index b9443427..79ace4da 100644
--- a/tests/rpc/testdata/optimism.json
+++ b/tests/rpc/testdata/optimism.json
@@ -81,6 +81,16 @@
         "0x041a2ee70fb75d9e9ca52447372d460151613fdcab200f0070deaec7349731d3",
         "0xa98dc5f46b0b84a0db0633a440069c2cdf834a2531f8fc0c7e98ba672095e60f"
     ],
+    "ethCallBatch": {
+        "address": "0xDF90C9B995a3b10A5b8570a47101e6c6a29eb945",
+        "contracts": [
+            "0x4200000000000000000000000000000000000006",
+            "0x7F5c764cBc14f9669B88837ca1490cCa17c31607",
+            "0x94b008aa00579c1307b0ef2c499ad98a8ce58e58",
+            "0xDA10009cBd5D07dd0CeCc66161FC93D7c9000da1",
+            "0x4200000000000000000000000000000000000042"
+        ]
+    },
     "txDetails": {
         "0x30d76e1114ab8b7f7d4309f099e756987180d3a760d4a9fea80487e06d7206ec": {
             "txid": "0x30d76e1114ab8b7f7d4309f099e756987180d3a760d4a9fea80487e06d7206ec",
diff --git a/tests/rpc/testdata/polygon.json b/tests/rpc/testdata/polygon.json
index 614d2118..1c493b50 100644
--- a/tests/rpc/testdata/polygon.json
+++ b/tests/rpc/testdata/polygon.json
@@ -145,6 +145,16 @@
         "0x63272bc328fe505cb9462e8555e309a4eec9d4110b3a89371614567789a68875",
         "0xc948a4163f649e81b74913ee365c24942ede77d7ac056beb7fe8bc1760834698"
     ],
+    "ethCallBatch": {
+        "address": "0x501c43b2510da0ca6572e05b479e530ce3985646",
+        "contracts": [
+            "0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270",
+            "0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619",
+            "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174",
+            "0x1BFD67037B42Cf73acF2047067bd4F2C47D9BfD6",
+            "0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063"
+        ]
+    },
     "txDetails": {
         "0xa1d596e7e0dbe5576f5f4c5dbefe91b241aa91a6a31cd8ad6f0ae8117f4fde10": {
             "txid": "0xa1d596e7e0dbe5576f5f4c5dbefe91b241aa91a6a31cd8ad6f0ae8117f4fde10",
diff --git a/tests/tests.json b/tests/tests.json
index bf74a402..c441a44f 100644
--- a/tests/tests.json
+++ b/tests/tests.json
@@ -1,6 +1,6 @@
 {
     "avalanche": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "bcash": {
@@ -52,7 +52,7 @@
         "sync": ["ConnectBlocksParallel", "ConnectBlocks", "HandleFork"]
     },
     "bsc": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "bsc_archive": {
@@ -253,23 +253,23 @@
         "sync": ["ConnectBlocksParallel", "ConnectBlocks", "HandleFork"]
     },
     "arbitrum": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "base": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "ethereum": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "optimism": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     },
     "polygon": {
-        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader"],
+        "rpc": ["GetBlock", "GetBlockHash", "GetTransaction", "EstimateFee", "GetBlockHeader", "EthCallBatch"],
         "evm_connectivity": true
     }
 }