diff --git a/src/bank/bank.service.ts b/src/bank/bank.service.ts
index 2273595..717daef 100644
--- a/src/bank/bank.service.ts
+++ b/src/bank/bank.service.ts
@@ -15,7 +15,8 @@ export class BankService {
 
   public async balance(address: AccAddress, height?: number): Promise<Coin[]> {
     try {
-      const [balance] = await this.lcdService.bank.balance(address, { height })
+      const apikey = process.env.API_KEY
+      const [balance] = await this.lcdService.bank.balance(address, { height, 'x-apikey': apikey })
 
       return Coin.fromTerraCoins(balance)
     } catch (err) {
@@ -27,7 +28,9 @@ export class BankService {
 
   public async total(height?: number): Promise<Coin[]> {
     try {
-      const [total] = await this.lcdService.bank.total({ height })
+      const apikey = process.env.API_KEY
+      
+      const [total] = await this.lcdService.bank.total({ height, 'x-apikey': apikey })
 
       return Coin.fromTerraCoins(total)
     } catch (err) {
diff --git a/src/ibc/ibc.service.ts b/src/ibc/ibc.service.ts
index 3356cf8..7b4b8df 100644
--- a/src/ibc/ibc.service.ts
+++ b/src/ibc/ibc.service.ts
@@ -16,7 +16,8 @@ export class IbcService {
 
   public async parameters(height?: number): Promise<IbcParams> {
     try {
-      const result = await this.lcdService.ibcTransfer.parameters({ height })
+      const apikey = process.env.API_KEY
+      const result = await this.lcdService.ibcTransfer.parameters({ height, 'x-apikey': apikey })
       return result
     } catch (err) {
       this.logger.error({ err }, 'Error getting parameters for %s.', height)
diff --git a/src/staking/staking.service.ts b/src/staking/staking.service.ts
index 3e5bf6e..b3eb559 100644
--- a/src/staking/staking.service.ts
+++ b/src/staking/staking.service.ts
@@ -183,7 +183,8 @@ export class StakingService {
 
   public async pool(height?: number): Promise<StakingPool> {
     try {
-      const pool = await this.lcdService.staking.pool({ height })
+      const apikey = process.env.API_KEY
+      const pool = await this.lcdService.staking.pool({ height, 'x-apikey': apikey })
 
       return {
         bonded_tokens: Coin.fromTerraCoin(pool.bonded_tokens),
@@ -198,7 +199,8 @@ export class StakingService {
 
   public async parameters(height?: number): Promise<StakingParams> {
     try {
-      const params = await this.lcdService.staking.parameters({ height })
+      const apikey = process.env.API_KEY
+      const params = await this.lcdService.staking.parameters({ height, 'x-apikey': apikey })
 
       return {
         unbonding_time: params.unbonding_time.toString(),
diff --git a/src/tendermint/tendermint.service.ts b/src/tendermint/tendermint.service.ts
index 02d2e53..03cf8a8 100644
--- a/src/tendermint/tendermint.service.ts
+++ b/src/tendermint/tendermint.service.ts
@@ -17,7 +17,8 @@ export class TendermintService {
 
   public async nodeInfo(height?: number): Promise<NodeInfo> {
     try {
-      const data = (await this.lcdService.tendermint.nodeInfo({ height })) as any
+      const apikey = process.env.API_KEY
+      const data = (await this.lcdService.tendermint.nodeInfo({ height, 'x-apikey': apikey})) as any
 
       return {
         id: data.default_node_info.default_node_id,
@@ -54,7 +55,8 @@ export class TendermintService {
 
   public async syncing(height?: number): Promise<boolean> {
     try {
-      return this.lcdService.tendermint.syncing({ height })
+      const apikey = process.env.API_KEY
+      return this.lcdService.tendermint.syncing({ height, 'x-apikey': apikey })
     } catch (err) {
       this.logger.error({ err }, 'Error getting the syncing mode.')
 
@@ -64,7 +66,8 @@ export class TendermintService {
 
   public async validatorSet(height?: number): Promise<ValidatorSet> {
     try {
-      const [validators] = await this.lcdService.tendermint.validatorSet(height)
+      const apikey = process.env.API_KEY
+      const [validators] = await this.lcdService.tendermint.validatorSet(height, {'x-apikey': apikey})
 
       return {
         validators: validators.map<DelegateValidator>((validator) => ({
@@ -83,7 +86,8 @@ export class TendermintService {
 
   public async blockInfo(height?: number): Promise<BlockInfo> {
     try {
-      const info = await this.lcdService.tendermint.blockInfo(height)
+      const apikey = process.env.API_KEY
+      const info = await this.lcdService.tendermint.blockInfo(height, {'x-apikey': apikey})
 
       info.block.last_commit.signatures.forEach((s) => {
         // terra.js should be fixed to return number
diff --git a/src/utils/utils.service.ts b/src/utils/utils.service.ts
index 6ab06c7..232be14 100644
--- a/src/utils/utils.service.ts
+++ b/src/utils/utils.service.ts
@@ -18,6 +18,7 @@ export class UtilsService {
     const { denom, amount } = coin
 
     try {
+  
       const tax = await this.lcdService.utils.calculateTax(new TerraCoin(denom, amount))
 
       return Coin.fromTerraCoin(tax)
diff --git a/src/wasm/wasm.service.ts b/src/wasm/wasm.service.ts
index fa56f87..1f4867e 100644
--- a/src/wasm/wasm.service.ts
+++ b/src/wasm/wasm.service.ts
@@ -16,7 +16,8 @@ export class WasmService {
 
   public async codeInfo(codeID: number, height?: number): Promise<CodeInfo> {
     try {
-      const info = await this.lcdService.wasm.codeInfo(codeID, { height })
+      const apikey = process.env.API_KEY
+      const info = await this.lcdService.wasm.codeInfo(codeID, { height, 'x-apikey': apikey })
 
       return {
         code_hash: info.code_hash,
@@ -31,7 +32,8 @@ export class WasmService {
 
   public async contractInfo(contractAddress: string, height?: number): Promise<ContractInfo> {
     try {
-      const info = await this.lcdService.wasm.contractInfo(contractAddress, { height })
+      const apikey = process.env.API_KEY
+      const info = await this.lcdService.wasm.contractInfo(contractAddress, { height, 'x-apikey': apikey })
 
       return {
         code_id: info.code_id,
@@ -49,7 +51,8 @@ export class WasmService {
 
   public async contractQuery(contractAddress: string, query: Record<string, any>, height?: number): Promise<any> {
     try {
-      const data = await this.lcdService.wasm.contractQuery(contractAddress, query, { height })
+      const apikey = process.env.API_KEY
+      const data = await this.lcdService.wasm.contractQuery(contractAddress, query, { height, 'x-apikey': apikey })
 
       return data
     } catch (err: any) {
@@ -61,7 +64,8 @@ export class WasmService {
 
   public async parameters(height?: number): Promise<WasmParams> {
     try {
-      const parameters = await this.lcdService.wasm.parameters({ height })
+      const apikey = process.env.API_KEY
+      const parameters = await this.lcdService.wasm.parameters({ height, 'x-apikey': apikey })
 
       return parameters
     } catch (err) {