diff --git a/src/provider/rpc.ts b/src/provider/rpc.ts
index 69ff2c062..78ab43c4b 100644
--- a/src/provider/rpc.ts
+++ b/src/provider/rpc.ts
@@ -38,6 +38,7 @@ import { Block, BlockIdentifier } from './utils';
 export type RpcProviderOptions = {
   nodeUrl: string;
   retries?: number;
+  headers?: object;
 };
 
 export class RpcProvider implements ProviderInterface {
@@ -46,14 +47,17 @@ export class RpcProvider implements ProviderInterface {
   // from interface
   public chainId!: StarknetChainId;
 
+  public headers: object;
+
   private responseParser = new RPCResponseParser();
 
   private retries: number;
 
   constructor(optionsOrProvider: RpcProviderOptions) {
-    const { nodeUrl, retries } = optionsOrProvider;
+    const { nodeUrl, retries, headers } = optionsOrProvider;
     this.nodeUrl = nodeUrl;
     this.retries = retries || 200;
+    this.headers = { 'Content-Type': 'application/json', ...headers };
 
     this.getChainId().then((chainId) => {
       this.chainId = chainId;
@@ -64,7 +68,7 @@ export class RpcProvider implements ProviderInterface {
     return fetch(this.nodeUrl, {
       method: 'POST',
       body: stringify({ method, jsonrpc: '2.0', params, id: 0 }),
-      headers: { 'Content-Type': 'application/json' },
+      headers: this.headers,
     });
   }
 
diff --git a/src/provider/sequencer.ts b/src/provider/sequencer.ts
index 1615895bb..357a69f2e 100644
--- a/src/provider/sequencer.ts
+++ b/src/provider/sequencer.ts
@@ -62,6 +62,7 @@ export type SequencerProviderOptions =
       feederGatewayUrl?: string;
       gatewayUrl?: string;
       chainId?: StarknetChainId;
+      headers?: object;
     };
 
 export class SequencerProvider implements ProviderInterface {
@@ -73,6 +74,8 @@ export class SequencerProvider implements ProviderInterface {
 
   public chainId: StarknetChainId;
 
+  public headers: object | undefined;
+
   private responseParser = new SequencerAPIResponseParser();
 
   constructor(optionsOrProvider: SequencerProviderOptions = { network: 'goerli-alpha' }) {
@@ -93,6 +96,8 @@ export class SequencerProvider implements ProviderInterface {
       this.chainId =
         optionsOrProvider.chainId ??
         SequencerProvider.getChainIdFromBaseUrl(optionsOrProvider.baseUrl);
+
+      this.headers = optionsOrProvider?.headers;
     }
   }
 
@@ -153,13 +158,14 @@ export class SequencerProvider implements ProviderInterface {
     return `?${queryString}`;
   }
 
-  private getHeaders(method: 'POST' | 'GET'): Record<string, string> | undefined {
+  private getHeaders(method: 'POST' | 'GET'): object | undefined {
     if (method === 'POST') {
       return {
         'Content-Type': 'application/json',
+        ...this.headers,
       };
     }
-    return undefined;
+    return this.headers;
   }
 
   // typesafe fetch