diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2010004dd5..acb0d8676a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Unreleased
 
+* (rpc) [#963](https://github.com/crypto-org-chain/ethermint/pull/963) fix(rpc): align eth_feeHistory response with execution-apis spec.
 * (ante) [#948](https://github.com/crypto-org-chain/ethermint/pull/948) fix(ante): enforce eip-1559 cost balance check even if it is not checkTx.
 * (evm) [#948](https://github.com/crypto-org-chain/ethermint/pull/948) fix(evm): fix SetCodeTx nil pointer panics, missing AuthList in Copy.
 * (evm) [#951](https://github.com/crypto-org-chain/ethermint/pull/951) chore(evm): preallocate slices in AccessList conversion functions.
diff --git a/rpc/backend/chain_info.go b/rpc/backend/chain_info.go
index 96ba5193cb..9c16034bce 100644
--- a/rpc/backend/chain_info.go
+++ b/rpc/backend/chain_info.go
@@ -214,7 +214,16 @@ func (b *Backend) FeeHistory(
 	}
 	maxBlockCount := int64(b.cfg.JSONRPC.FeeHistoryCap)
 	if blocks > maxBlockCount {
-		return nil, fmt.Errorf("FeeHistory user block count %d higher than %d", blocks, maxBlockCount)
+		blocks = maxBlockCount
+	}
+	if blocks == 0 {
+		return &rpctypes.FeeHistoryResult{
+			OldestBlock:      (*hexutil.Big)(new(big.Int)),
+			BaseFee:          []*hexutil.Big{},
+			GasUsedRatio:     []float64{},
+			BlobBaseFee:      []*hexutil.Big{},
+			BlobGasUsedRatio: []float64{},
+		}, nil
 	}
 	if blockEnd < math.MaxInt64 && blockEnd+1 < blocks {
 		blocks = blockEnd + 1
@@ -317,10 +326,19 @@ func (b *Backend) FeeHistory(
 		}
 	}
 
+	// EIP-4844 blob transactions are not supported; return zeros per spec.
+	thisBlobBaseFee := make([]*hexutil.Big, blocks+1)
+	for i := range thisBlobBaseFee {
+		thisBlobBaseFee[i] = (*hexutil.Big)(new(big.Int))
+	}
+	thisBlobGasUsedRatio := make([]float64, blocks)
+
 	feeHistory := rpctypes.FeeHistoryResult{
-		OldestBlock:  oldestBlock,
-		BaseFee:      thisBaseFee,
-		GasUsedRatio: thisGasUsedRatio,
+		OldestBlock:      oldestBlock,
+		BaseFee:          thisBaseFee,
+		GasUsedRatio:     thisGasUsedRatio,
+		BlobBaseFee:      thisBlobBaseFee,
+		BlobGasUsedRatio: thisBlobGasUsedRatio,
 	}
 
 	if calculateRewards {
diff --git a/rpc/backend/chain_info_test.go b/rpc/backend/chain_info_test.go
index 4eb01ce378..4a0e154a7d 100644
--- a/rpc/backend/chain_info_test.go
+++ b/rpc/backend/chain_info_test.go
@@ -347,7 +347,7 @@ func (suite *BackendTestSuite) TestFeeHistory() {
 			nil,
 		},
 		{
-			"fail - user block count higher than max block count ",
+			"pass - user block count higher than max block count is silently capped",
 			func(validator sdk.AccAddress) {
 				var header metadata.MD
 				queryClient := suite.backend.queryClient.QueryClient.(*mocks.EVMQueryClient)
@@ -356,9 +356,15 @@ func (suite *BackendTestSuite) TestFeeHistory() {
 			},
 			1,
 			-1,
+			&rpc.FeeHistoryResult{
+				OldestBlock:      (*hexutil.Big)(new(big.Int)),
+				BaseFee:          []*hexutil.Big{},
+				GasUsedRatio:     []float64{},
+				BlobBaseFee:      []*hexutil.Big{},
+				BlobGasUsedRatio: []float64{},
+			},
 			nil,
-			nil,
-			false,
+			true,
 			nil,
 		},
 		{
@@ -433,10 +439,12 @@ func (suite *BackendTestSuite) TestFeeHistory() {
 			1,
 			1,
 			&rpc.FeeHistoryResult{
-				OldestBlock:  (*hexutil.Big)(big.NewInt(1)),
-				BaseFee:      []*hexutil.Big{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(new(big.Int).SetBits([]big.Word{}))},
-				GasUsedRatio: []float64{0},
-				Reward:       [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				OldestBlock:      (*hexutil.Big)(big.NewInt(1)),
+				BaseFee:          []*hexutil.Big{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(new(big.Int).SetBits([]big.Word{}))},
+				GasUsedRatio:     []float64{0},
+				Reward:           [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				BlobBaseFee:      []*hexutil.Big{(*hexutil.Big)(new(big.Int)), (*hexutil.Big)(new(big.Int))},
+				BlobGasUsedRatio: []float64{0},
 			},
 			sdk.AccAddress(tests.GenerateAddress().Bytes()),
 			true,
@@ -463,10 +471,12 @@ func (suite *BackendTestSuite) TestFeeHistory() {
 			1,
 			1,
 			&rpc.FeeHistoryResult{
-				OldestBlock:  (*hexutil.Big)(big.NewInt(1)),
-				BaseFee:      []*hexutil.Big{(*hexutil.Big)(big.NewInt(1)), (*hexutil.Big)(big.NewInt(1))},
-				GasUsedRatio: []float64{0},
-				Reward:       [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				OldestBlock:      (*hexutil.Big)(big.NewInt(1)),
+				BaseFee:          []*hexutil.Big{(*hexutil.Big)(big.NewInt(1)), (*hexutil.Big)(big.NewInt(1))},
+				GasUsedRatio:     []float64{0},
+				Reward:           [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				BlobBaseFee:      []*hexutil.Big{(*hexutil.Big)(new(big.Int)), (*hexutil.Big)(new(big.Int))},
+				BlobGasUsedRatio: []float64{0},
 			},
 			sdk.AccAddress(tests.GenerateAddress().Bytes()),
 			true,
@@ -493,10 +503,12 @@ func (suite *BackendTestSuite) TestFeeHistory() {
 			1,
 			1,
 			&rpc.FeeHistoryResult{
-				OldestBlock:  (*hexutil.Big)(big.NewInt(1)),
-				BaseFee:      []*hexutil.Big{(*hexutil.Big)(big.NewInt(1)), (*hexutil.Big)(big.NewInt(0))},
-				GasUsedRatio: []float64{0},
-				Reward:       [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				OldestBlock:      (*hexutil.Big)(big.NewInt(1)),
+				BaseFee:          []*hexutil.Big{(*hexutil.Big)(big.NewInt(1)), (*hexutil.Big)(big.NewInt(0))},
+				GasUsedRatio:     []float64{0},
+				Reward:           [][]*hexutil.Big{{(*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0)), (*hexutil.Big)(big.NewInt(0))}},
+				BlobBaseFee:      []*hexutil.Big{(*hexutil.Big)(new(big.Int)), (*hexutil.Big)(new(big.Int))},
+				BlobGasUsedRatio: []float64{0},
 			},
 			sdk.AccAddress(tests.GenerateAddress().Bytes()),
 			true,
diff --git a/rpc/types/types.go b/rpc/types/types.go
index 305a662777..2973382f36 100644
--- a/rpc/types/types.go
+++ b/rpc/types/types.go
@@ -173,10 +173,12 @@ type OverrideAccount struct {
 }
 
 type FeeHistoryResult struct {
-	OldestBlock  *hexutil.Big     `json:"oldestBlock"`
-	Reward       [][]*hexutil.Big `json:"reward,omitempty"`
-	BaseFee      []*hexutil.Big   `json:"baseFeePerGas,omitempty"`
-	GasUsedRatio []float64        `json:"gasUsedRatio"`
+	OldestBlock      *hexutil.Big     `json:"oldestBlock"`
+	Reward           [][]*hexutil.Big `json:"reward,omitempty"`
+	BaseFee          []*hexutil.Big   `json:"baseFeePerGas,omitempty"`
+	GasUsedRatio     []float64        `json:"gasUsedRatio"`
+	BlobBaseFee      []*hexutil.Big   `json:"baseFeePerBlobGas,omitempty"`
+	BlobGasUsedRatio []float64        `json:"blobGasUsedRatio"`
 }
 
 // SignTransactionResult represents a RLP encoded signed transaction.