diff --git a/backend/functions/src/cloud-functions/crawler.ts b/backend/functions/src/cloud-functions/crawler.ts
index e24ffde..9cc12fc 100644
--- a/backend/functions/src/cloud-functions/crawler.ts
+++ b/backend/functions/src/cloud-functions/crawler.ts
@@ -49,6 +49,11 @@ export interface FormattedPage {
     pageshot?: Buffer;
     links?: { [k: string]: string; };
     images?: { [k: string]: string; };
+    usage?: {
+        total_tokens?: number;
+        totalTokens?: number;
+        tokens?: number;
+    };
 
     toString: () => string;
 }
@@ -743,7 +748,7 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
                     }
 
                     const formatted = await this.formatSnapshot(crawlerOptions.respondWith, scrapped, urlToCrawl);
-                    chargeAmount = this.getChargeAmount(formatted);
+                    chargeAmount = this.assignChargeAmount(formatted);
                     sseStream.write({
                         event: 'data',
                         data: formatted,
@@ -771,7 +776,7 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
                 }
 
                 const formatted = await this.formatSnapshot(crawlerOptions.respondWith, scrapped, urlToCrawl);
-                chargeAmount = this.getChargeAmount(formatted);
+                chargeAmount = this.assignChargeAmount(formatted);
 
                 if (crawlerOptions.timeout === undefined) {
                     return formatted;
@@ -783,7 +788,7 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
             }
 
             const formatted = await this.formatSnapshot(crawlerOptions.respondWith, lastScrapped, urlToCrawl);
-            chargeAmount = this.getChargeAmount(formatted);
+            chargeAmount = this.assignChargeAmount(formatted);
 
             return formatted;
         }
@@ -795,7 +800,7 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
             }
 
             const formatted = await this.formatSnapshot(crawlerOptions.respondWith, scrapped, urlToCrawl);
-            chargeAmount = this.getChargeAmount(formatted);
+            chargeAmount = this.assignChargeAmount(formatted);
 
             if (crawlerOptions.timeout === undefined) {
                 if (crawlerOptions.respondWith === 'screenshot' && Reflect.get(formatted, 'screenshotUrl')) {
@@ -820,7 +825,7 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
         }
 
         const formatted = await this.formatSnapshot(crawlerOptions.respondWith, lastScrapped, urlToCrawl);
-        chargeAmount = this.getChargeAmount(formatted);
+        chargeAmount = this.assignChargeAmount(formatted);
         if (crawlerOptions.respondWith === 'screenshot' && Reflect.get(formatted, 'screenshotUrl')) {
 
             return assignTransferProtocolMeta(`${formatted}`,
@@ -1005,25 +1010,31 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n\n')}\n` : ''}`;
         }
     }
 
-    getChargeAmount(formatted: FormattedPage) {
+    assignChargeAmount(formatted: FormattedPage) {
         if (!formatted) {
             return undefined;
         }
 
         const textContent = formatted?.content || formatted?.description || formatted?.text || formatted?.html;
+        let amount;
+        do {
+            if (typeof textContent === 'string') {
+                amount = estimateToken(textContent);
+                break;
+            }
 
-        if (typeof textContent === 'string') {
-            return estimateToken(textContent);
-        }
+            const imageContent = formatted.screenshotUrl || formatted.screenshot;
 
-        const imageContent = formatted.screenshotUrl || formatted.screenshot;
+            if (imageContent) {
+                // OpenAI image token count for 1024x1024 image
+                amount = 765;
+                break;
+            }
+        } while (false);
 
-        if (imageContent) {
-            // OpenAI image token count for 1024x1024 image
-            return 765;
-        }
+        Object.assign(formatted, { usage: { tokens: amount } });
 
-        return undefined;
+        return amount;
     }
 
 
diff --git a/backend/functions/src/cloud-functions/searcher.ts b/backend/functions/src/cloud-functions/searcher.ts
index 00dd898..11e5afe 100644
--- a/backend/functions/src/cloud-functions/searcher.ts
+++ b/backend/functions/src/cloud-functions/searcher.ts
@@ -178,7 +178,7 @@ export class SearcherHost extends RPCHost {
                         continue;
                     }
 
-                    chargeAmount = this.getChargeAmount(scrapped);
+                    chargeAmount = this.assignChargeAmount(scrapped);
                     sseStream.write({
                         event: 'data',
                         data: scrapped,
@@ -211,7 +211,7 @@ export class SearcherHost extends RPCHost {
                     if (!lastScrapped) {
                         return;
                     }
-                    chargeAmount = this.getChargeAmount(lastScrapped);
+                    chargeAmount = this.assignChargeAmount(lastScrapped);
                     rpcReflect.return(lastScrapped);
                     earlyReturn = true;
                 }, ((crawlerOptions.timeout || 0) * 1000) || this.reasonableDelayMs);
@@ -228,7 +228,7 @@ export class SearcherHost extends RPCHost {
                 if (earlyReturnTimer) {
                     clearTimeout(earlyReturnTimer);
                 }
-                chargeAmount = this.getChargeAmount(scrapped);
+                chargeAmount = this.assignChargeAmount(scrapped);
 
                 return scrapped;
             }
@@ -242,7 +242,7 @@ export class SearcherHost extends RPCHost {
             }
 
             if (!earlyReturn) {
-                chargeAmount = this.getChargeAmount(lastScrapped);
+                chargeAmount = this.assignChargeAmount(lastScrapped);
             }
 
             return lastScrapped;
@@ -257,7 +257,7 @@ export class SearcherHost extends RPCHost {
                 if (!lastScrapped) {
                     return;
                 }
-                chargeAmount = this.getChargeAmount(lastScrapped);
+                chargeAmount = this.assignChargeAmount(lastScrapped);
                 rpcReflect.return(assignTransferProtocolMeta(`${lastScrapped}`, { contentType: 'text/plain', envelope: null }));
                 earlyReturn = true;
             }, ((crawlerOptions.timeout || 0) * 1000) || this.reasonableDelayMs);
@@ -278,7 +278,7 @@ export class SearcherHost extends RPCHost {
                 clearTimeout(earlyReturnTimer);
             }
 
-            chargeAmount = this.getChargeAmount(scrapped);
+            chargeAmount = this.assignChargeAmount(scrapped);
 
             return assignTransferProtocolMeta(`${scrapped}`, { contentType: 'text/plain', envelope: null });
         }
@@ -292,7 +292,7 @@ export class SearcherHost extends RPCHost {
         }
 
         if (!earlyReturn) {
-            chargeAmount = this.getChargeAmount(lastScrapped);
+            chargeAmount = this.assignChargeAmount(lastScrapped);
         }
 
         return assignTransferProtocolMeta(`${lastScrapped}`, { contentType: 'text/plain', envelope: null });
@@ -423,9 +423,9 @@ ${suffixMixins.length ? `\n${suffixMixins.join('\n')}\n` : ''}`;
         return resultArray;
     }
 
-    getChargeAmount(formatted: FormattedPage[]) {
+    assignChargeAmount(formatted: FormattedPage[]) {
         return _.sum(
-            formatted.map((x) => this.crawler.getChargeAmount(x) || 0)
+            formatted.map((x) => this.crawler.assignChargeAmount(x) || 0)
         );
     }