diff --git a/packages/transaction-controller/CHANGELOG.md b/packages/transaction-controller/CHANGELOG.md
index cb0def6a62b..2c5a4cd0f80 100644
--- a/packages/transaction-controller/CHANGELOG.md
+++ b/packages/transaction-controller/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Add optional `submissionMethod` property and `TransactionSubmissionMethod` enum to `TransactionMeta` ([#8375](https://github.com/MetaMask/core/pull/8375))
+
 ### Changed
 
 - Bump `@metamask/accounts-controller` from `^37.1.1` to `^37.2.0` ([#8363](https://github.com/MetaMask/core/pull/8363))
diff --git a/packages/transaction-controller/src/index.ts b/packages/transaction-controller/src/index.ts
index d0fad253777..ea1d47da0ca 100644
--- a/packages/transaction-controller/src/index.ts
+++ b/packages/transaction-controller/src/index.ts
@@ -123,6 +123,7 @@ export {
   TransactionContainerType,
   TransactionEnvelopeType,
   TransactionStatus,
+  TransactionSubmissionMethod,
   TransactionType,
   UserFeeLevel,
   WalletDevice,
diff --git a/packages/transaction-controller/src/types.ts b/packages/transaction-controller/src/types.ts
index 3282ce2cebb..9c2e78d6f7f 100644
--- a/packages/transaction-controller/src/types.ts
+++ b/packages/transaction-controller/src/types.ts
@@ -574,6 +574,11 @@ export type TransactionMeta = {
     error: string;
     message: string;
   };
+
+  /**
+   * The method used to submit the transaction to the network.
+   */
+  submissionMethod?: TransactionSubmissionMethod;
 };
 
 /**
@@ -640,6 +645,14 @@ export type SendFlowHistoryEntry = {
   timestamp: number;
 };
 
+/**
+ * The method used to submit a transaction to the network.
+ */
+export enum TransactionSubmissionMethod {
+  SentinelStx = 'sentinel_stx',
+  SentinelRelay = 'sentinel_relay',
+}
+
 /**
  * Represents the status of a transaction within the wallet.
  * Each status reflects the state of the transaction internally,