diff --git a/packages/snaps-execution-environments/src/common/BaseSnapExecutor.test.browser.ts b/packages/snaps-execution-environments/src/common/BaseSnapExecutor.test.browser.ts
index ce6f22853c..51d58cd98d 100644
--- a/packages/snaps-execution-environments/src/common/BaseSnapExecutor.test.browser.ts
+++ b/packages/snaps-execution-environments/src/common/BaseSnapExecutor.test.browser.ts
@@ -191,6 +191,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const blockNumRequest = await executor.readRpc();
@@ -217,6 +218,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'ethereum.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -255,6 +257,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'snap.request' },
     });
 
     const walletRequest = await executor.readRpc();
@@ -281,6 +284,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'snap.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -416,6 +420,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const blockNumRequest = await executor.readRpc();
@@ -442,6 +447,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'ethereum.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -482,6 +488,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'snap.request' },
     });
 
     const getSnapsRequest = await executor.readRpc();
@@ -516,6 +523,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'snap.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -898,6 +906,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'snap.request' },
     });
 
     const request = await executor.readRpc();
@@ -930,6 +939,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'snap.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -973,6 +983,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const request = await executor.readRpc();
@@ -1007,6 +1018,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'ethereum.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -1051,21 +1063,25 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'fetch' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'fetch' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'fetch' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'fetch' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
@@ -1624,6 +1640,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const blockNumRequest = await executor.readRpc();
@@ -1726,6 +1743,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const blockNumRequest = await executor.readRpc();
@@ -1813,6 +1831,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundRequest',
+      params: { source: 'ethereum.request' },
     });
 
     const blockNumRequest = await executor.readRpc();
@@ -1842,6 +1861,7 @@ describe('BaseSnapExecutor', () => {
     expect(await executor.readCommand()).toStrictEqual({
       jsonrpc: '2.0',
       method: 'OutboundResponse',
+      params: { source: 'ethereum.request' },
     });
 
     expect(await executor.readCommand()).toStrictEqual({
diff --git a/packages/snaps-execution-environments/src/common/BaseSnapExecutor.ts b/packages/snaps-execution-environments/src/common/BaseSnapExecutor.ts
index cbce8848d5..9d81c03f7c 100644
--- a/packages/snaps-execution-environments/src/common/BaseSnapExecutor.ts
+++ b/packages/snaps-execution-environments/src/common/BaseSnapExecutor.ts
@@ -438,11 +438,17 @@ export class BaseSnapExecutor {
     const request = async (args: RequestArguments) => {
       const sanitizedArgs = sanitizeRequestArguments(args);
       assertSnapOutboundRequest(sanitizedArgs);
-      this.notify({ method: 'OutboundRequest' });
+      this.notify({
+        method: 'OutboundRequest',
+        params: { source: 'snap.request' },
+      });
       try {
         return await withTeardown(originalRequest(sanitizedArgs), this as any);
       } finally {
-        this.notify({ method: 'OutboundResponse' });
+        this.notify({
+          method: 'OutboundResponse',
+          params: { source: 'snap.request' },
+        });
       }
     };
 
@@ -479,11 +485,17 @@ export class BaseSnapExecutor {
     const request = async (args: RequestArguments) => {
       const sanitizedArgs = sanitizeRequestArguments(args);
       assertEthereumOutboundRequest(sanitizedArgs);
-      this.notify({ method: 'OutboundRequest' });
+      this.notify({
+        method: 'OutboundRequest',
+        params: { source: 'ethereum.request' },
+      });
       try {
         return await withTeardown(originalRequest(sanitizedArgs), this as any);
       } finally {
-        this.notify({ method: 'OutboundResponse' });
+        this.notify({
+          method: 'OutboundResponse',
+          params: { source: 'ethereum.request' },
+        });
       }
     };
 
diff --git a/packages/snaps-execution-environments/src/common/endowments/network.test.ts b/packages/snaps-execution-environments/src/common/endowments/network.test.ts
index 1b19aa67a3..c9859dbcc1 100644
--- a/packages/snaps-execution-environments/src/common/endowments/network.test.ts
+++ b/packages/snaps-execution-environments/src/common/endowments/network.test.ts
@@ -33,11 +33,21 @@ describe('Network endowments', () => {
       const { fetch } = network.factory({ notify });
       const result = await (await fetch('foo.com')).text();
       expect(result).toStrictEqual(RESULT);
-      expect(notify).toHaveBeenCalledWith({
+      expect(notify).toHaveBeenNthCalledWith(1, {
         method: 'OutboundRequest',
+        params: { source: 'fetch' },
       });
-      expect(notify).toHaveBeenCalledWith({
+      expect(notify).toHaveBeenNthCalledWith(2, {
         method: 'OutboundResponse',
+        params: { source: 'fetch' },
+      });
+      expect(notify).toHaveBeenNthCalledWith(3, {
+        method: 'OutboundRequest',
+        params: { source: 'fetch' },
+      });
+      expect(notify).toHaveBeenNthCalledWith(4, {
+        method: 'OutboundResponse',
+        params: { source: 'fetch' },
       });
       expect(notify).toHaveBeenCalledTimes(4);
     });
diff --git a/packages/snaps-execution-environments/src/common/endowments/network.ts b/packages/snaps-execution-environments/src/common/endowments/network.ts
index 5f8bd952b7..614fba68a6 100644
--- a/packages/snaps-execution-environments/src/common/endowments/network.ts
+++ b/packages/snaps-execution-environments/src/common/endowments/network.ts
@@ -175,7 +175,7 @@ const createNetwork = ({ notify }: EndowmentFactoryOptions = {}) => {
     const onStart = () => {
       if (!started) {
         started = true;
-        notify({ method: 'OutboundRequest' });
+        notify({ method: 'OutboundRequest', params: { source: 'fetch' } });
       }
     };
 
@@ -183,14 +183,14 @@ const createNetwork = ({ notify }: EndowmentFactoryOptions = {}) => {
     const onFinish = () => {
       if (!finished) {
         finished = true;
-        notify({ method: 'OutboundResponse' });
+        notify({ method: 'OutboundResponse', params: { source: 'fetch' } });
       }
     };
 
     let res: Response;
     let openFetchConnection: { cancel: () => Promise<void> } | undefined;
     try {
-      notify({ method: 'OutboundRequest' });
+      notify({ method: 'OutboundRequest', params: { source: 'fetch' } });
       const fetchPromise = fetch(input, {
         ...init,
         signal: abortController.signal,
@@ -218,7 +218,7 @@ const createNetwork = ({ notify }: EndowmentFactoryOptions = {}) => {
       if (openFetchConnection !== undefined) {
         openConnections.delete(openFetchConnection);
       }
-      notify({ method: 'OutboundResponse' });
+      notify({ method: 'OutboundResponse', params: { source: 'fetch' } });
     }
 
     if (res.body !== null) {