diff --git a/packages/ai-controllers/CHANGELOG.md b/packages/ai-controllers/CHANGELOG.md
index d09b75317e..7596a29633 100644
--- a/packages/ai-controllers/CHANGELOG.md
+++ b/packages/ai-controllers/CHANGELOG.md
@@ -12,6 +12,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Bump `@metamask/messenger` from `^1.0.0` to `^1.2.0` ([#8364](https://github.com/MetaMask/core/pull/8364), [#8373](https://github.com/MetaMask/core/pull/8373), [#8632](https://github.com/MetaMask/core/pull/8632))
 - Bump `@metamask/base-controller` from `^9.0.1` to `^9.1.0` ([#8457](https://github.com/MetaMask/core/pull/8457))
 
+### Fixed
+
+- `RelatedAsset.name` and `RelatedAsset.sourceAssetId` are now optional in both the superstruct schema and TypeScript type, so a `relatedAsset` missing either field no longer causes `fetchMarketOverview` to throw `API_INVALID_RESPONSE` ([#8920](https://github.com/MetaMask/core/pull/8920)).
+
 ## [0.6.3]
 
 ### Fixed
diff --git a/packages/ai-controllers/src/AiDigestService.test.ts b/packages/ai-controllers/src/AiDigestService.test.ts
index 780036ef67..7640b57abe 100644
--- a/packages/ai-controllers/src/AiDigestService.test.ts
+++ b/packages/ai-controllers/src/AiDigestService.test.ts
@@ -784,7 +784,7 @@ describe('AiDigestService', () => {
             trends: [
               {
                 ...mockMarketOverview.trends[0],
-                relatedAssets: [{ name: 'Bitcoin' }], // missing required fields
+                relatedAssets: [{ name: 'Bitcoin' }], // missing required symbol
               },
             ],
           }),
@@ -799,6 +799,76 @@ describe('AiDigestService', () => {
       );
     });
 
+    it('returns overview when an asset is missing sourceAssetId', async () => {
+      const assetWithoutSourceId = {
+        name: 'Bitcoin',
+        symbol: 'BTC',
+        caip19: ['bip122:000000000019d6689c085ae165831e93/slip44:0'],
+        hlPerpsMarket: ['BTC'],
+        // sourceAssetId intentionally absent
+      };
+
+      mockFetch.mockResolvedValue({
+        ok: true,
+        status: 200,
+        json: () =>
+          Promise.resolve({
+            ...mockMarketOverview,
+            trends: [
+              {
+                ...mockMarketOverview.trends[0],
+                relatedAssets: [assetWithoutSourceId],
+              },
+            ],
+          }),
+      });
+
+      const service = new AiDigestService({
+        baseUrl: 'http://test.com/api/v1',
+      });
+      const result = await service.fetchMarketOverview();
+
+      expect(result?.trends).toHaveLength(1);
+      expect(result?.trends[0].relatedAssets).toHaveLength(1);
+      expect(result?.trends[0].relatedAssets[0].symbol).toBe('BTC');
+      expect(result?.trends[0].relatedAssets[0].sourceAssetId).toBeUndefined();
+    });
+
+    it('returns overview when an asset is missing name', async () => {
+      const assetWithoutName = {
+        symbol: 'ETH',
+        sourceAssetId: 'ethereum',
+        caip19: ['eip155:1/slip44:60'],
+        hlPerpsMarket: ['ETH'],
+        // name intentionally absent
+      };
+
+      mockFetch.mockResolvedValue({
+        ok: true,
+        status: 200,
+        json: () =>
+          Promise.resolve({
+            ...mockMarketOverview,
+            trends: [
+              {
+                ...mockMarketOverview.trends[0],
+                relatedAssets: [assetWithoutName],
+              },
+            ],
+          }),
+      });
+
+      const service = new AiDigestService({
+        baseUrl: 'http://test.com/api/v1',
+      });
+      const result = await service.fetchMarketOverview();
+
+      expect(result?.trends).toHaveLength(1);
+      expect(result?.trends[0].relatedAssets).toHaveLength(1);
+      expect(result?.trends[0].relatedAssets[0].symbol).toBe('ETH');
+      expect(result?.trends[0].relatedAssets[0].name).toBeUndefined();
+    });
+
     it('accepts additional unknown fields in payload', async () => {
       const withExtras = {
         ...mockMarketOverview,
diff --git a/packages/ai-controllers/src/AiDigestService.ts b/packages/ai-controllers/src/AiDigestService.ts
index 022ef0fb63..23240521c3 100644
--- a/packages/ai-controllers/src/AiDigestService.ts
+++ b/packages/ai-controllers/src/AiDigestService.ts
@@ -86,10 +86,10 @@ const MarketInsightsDigestEnvelopeStruct = structType({
 // Market Overview structs
 
 const RelatedAssetStruct = structType({
-  name: string(),
+  name: optional(string()),
   symbol: string(),
   caip19: optional(array(string())),
-  sourceAssetId: string(),
+  sourceAssetId: optional(string()),
   hlPerpsMarket: optional(array(string())),
 });
 
diff --git a/packages/ai-controllers/src/ai-digest-types.ts b/packages/ai-controllers/src/ai-digest-types.ts
index f68d2c9098..8f3f14b59b 100644
--- a/packages/ai-controllers/src/ai-digest-types.ts
+++ b/packages/ai-controllers/src/ai-digest-types.ts
@@ -132,9 +132,12 @@ export type MarketOverviewEntry = {
  * Returned by the `/market-overview` API as a rich object.
  */
 export type RelatedAsset = {
-  /** Human-readable asset name (e.g. "Bitcoin") */
-  name: string;
-  /** Ticker symbol (e.g. "BTC") */
+  /**
+   * Human-readable asset name (e.g. "Bitcoin"). Optional — clients must fall
+   * back to `symbol` when absent.
+   */
+  name?: string;
+  /** Ticker symbol (e.g. "BTC"). The only field guaranteed to be present. */
   symbol: string;
   /**
    * CAIP-19 identifiers for this asset across chains. May be absent for
@@ -142,8 +145,11 @@ export type RelatedAsset = {
    * normalises missing values to `[]`.
    */
   caip19?: string[];
-  /** Canonical source asset identifier (e.g. "bitcoin") */
-  sourceAssetId: string;
+  /**
+   * Canonical source asset identifier (e.g. "bitcoin"). Optional — may be
+   * absent when the API pipeline cannot enrich the asset record.
+   */
+  sourceAssetId?: string;
   /**
    * Optional HyperLiquid market identifiers for this asset (e.g. `BTC`, `ETH`,
    * `xyz:TSLA`). Covers both regular crypto tokens that trade on HyperLiquid