diff --git a/website/src/lib/server/moderation.ts b/website/src/lib/server/moderation.ts
new file mode 100644
index 0000000..60865f5
--- /dev/null
+++ b/website/src/lib/server/moderation.ts
@@ -0,0 +1,22 @@
+export async function isNameAppropriate(name: string): Promise<boolean> {
+    try {
+        const response = await fetch('http://localhost:9999', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({ name }),
+        });
+
+        if (!response.ok) {
+            console.error('Moderation service error:', response.status, response.statusText);
+            return true;
+        }
+
+        const result = await response.json();
+        return result.appropriate !== false;
+    } catch (error) {
+        console.error('Failed to check name with moderation service:', error);
+        return true;
+    }
+}
diff --git a/website/src/routes/api/coin/[coinSymbol]/comments/+server.ts b/website/src/routes/api/coin/[coinSymbol]/comments/+server.ts
index ce5fc95..995c01a 100644
--- a/website/src/routes/api/coin/[coinSymbol]/comments/+server.ts
+++ b/website/src/routes/api/coin/[coinSymbol]/comments/+server.ts
@@ -4,6 +4,7 @@ import { db } from '$lib/server/db';
 import { comment, coin, user, commentLike } from '$lib/server/db/schema';
 import { eq, and, desc, sql } from 'drizzle-orm';
 import { redis } from '$lib/server/redis';
+import { isNameAppropriate } from '$lib/server/moderation';
 
 export async function GET({ params, request }) {
     const session = await auth.api.getSession({
@@ -73,6 +74,10 @@ export async function POST({ request, params }) {
         throw error(400, 'Comment must be 500 characters or less');
     }
 
+    if (!(await isNameAppropriate(content.trim()))) {
+        throw error(400, 'Comment contains inappropriate content');
+    }
+
     const normalizedSymbol = coinSymbol.toUpperCase();
     const userId = Number(session.user.id);
 
diff --git a/website/src/routes/api/coin/create/+server.ts b/website/src/routes/api/coin/create/+server.ts
index e7e497f..407aa5a 100644
--- a/website/src/routes/api/coin/create/+server.ts
+++ b/website/src/routes/api/coin/create/+server.ts
@@ -5,8 +5,9 @@ import { coin, userPortfolio, user, priceHistory, transaction } from '$lib/serve
 import { eq } from 'drizzle-orm';
 import { uploadCoinIcon } from '$lib/server/s3';
 import { CREATION_FEE, FIXED_SUPPLY, STARTING_PRICE, INITIAL_LIQUIDITY, TOTAL_COST, MAX_FILE_SIZE } from '$lib/data/constants';
+import { isNameAppropriate } from '$lib/server/moderation';
 
-function validateInputs(name: string, symbol: string, iconFile: File | null) {
+async function validateInputs(name: string, symbol: string, iconFile: File | null) {
     if (!name || name.length < 2 || name.length > 255) {
         throw error(400, 'Name must be between 2 and 255 characters');
     }
@@ -15,6 +16,16 @@ function validateInputs(name: string, symbol: string, iconFile: File | null) {
         throw error(400, 'Symbol must be between 2 and 10 characters');
     }
 
+    const nameAppropriate = await isNameAppropriate(name);
+    if (!nameAppropriate) {
+        throw error(400, 'Coin name contains inappropriate content');
+    }
+
+    const symbolAppropriate = await isNameAppropriate(symbol);
+    if (!symbolAppropriate) {
+        throw error(400, 'Coin symbol contains inappropriate content');
+    }
+
     if (iconFile && iconFile.size > MAX_FILE_SIZE) {
         throw error(400, 'Icon file must be smaller than 1MB');
     }
@@ -77,7 +88,7 @@ export async function POST({ request }) {
     const normalizedSymbol = symbol?.toUpperCase();
     const userId = Number(session.user.id);
 
-    validateInputs(name, normalizedSymbol, iconFile);
+    await validateInputs(name, normalizedSymbol, iconFile);
 
     const [currentBalance] = await Promise.all([
         validateUserBalance(userId),
diff --git a/website/src/routes/api/hopium/questions/create/+server.ts b/website/src/routes/api/hopium/questions/create/+server.ts
index efd072c..1ec4fd3 100644
--- a/website/src/routes/api/hopium/questions/create/+server.ts
+++ b/website/src/routes/api/hopium/questions/create/+server.ts
@@ -4,6 +4,7 @@ import { db } from '$lib/server/db';
 import { user, predictionQuestion } from '$lib/server/db/schema';
 import { eq, and, gte, count } from 'drizzle-orm';
 import { validateQuestion } from '$lib/server/ai';
+import { isNameAppropriate } from '$lib/server/moderation';
 import type { RequestHandler } from './$types';
 
 const MIN_BALANCE_REQUIRED = 100000; // $100k
@@ -22,6 +23,10 @@ export const POST: RequestHandler = async ({ request }) => {
         return json({ error: 'Question must be between 10 and 200 characters' }, { status: 400 });
     }
 
+    if (!(await isNameAppropriate(cleaned))) {
+        return json({ error: 'Question contains inappropriate content' }, { status: 400 });
+    }
+
     const userId = Number(session.user.id);
     const now = new Date();
 
diff --git a/website/src/routes/api/settings/+server.ts b/website/src/routes/api/settings/+server.ts
index f1cd4a9..d5ca308 100644
--- a/website/src/routes/api/settings/+server.ts
+++ b/website/src/routes/api/settings/+server.ts
@@ -5,12 +5,17 @@ import { db } from '$lib/server/db';
 import { user } from '$lib/server/db/schema';
 import { eq } from 'drizzle-orm';
 import { MAX_FILE_SIZE } from '$lib/data/constants';
+import { isNameAppropriate } from '$lib/server/moderation';
 
-function validateInputs(name: string, bio: string, username: string, avatarFile: File | null) {
+async function validateInputs(name: string, bio: string, username: string, avatarFile: File | null) {
     if (name && name.length < 1) {
         throw error(400, 'Name cannot be empty');
     }
 
+    if (name && !(await isNameAppropriate(name))) {
+        throw error(400, 'Name contains inappropriate content');
+    }
+
     if (bio && bio.length > 160) {
         throw error(400, 'Bio must be 160 characters or less');
     }
@@ -19,6 +24,10 @@ function validateInputs(name: string, bio: string, username: string, avatarFile:
         throw error(400, 'Username must be between 3 and 30 characters');
     }
 
+    if (username && !(await isNameAppropriate(username))) {
+        throw error(400, 'Username contains inappropriate content');
+    }
+
     if (avatarFile && avatarFile.size > MAX_FILE_SIZE) {
         throw error(400, 'Avatar file must be smaller than 1MB');
     }
@@ -39,7 +48,7 @@ export async function POST({ request }) {
     const username = formData.get('username') as string;
     const avatarFile = formData.get('avatar') as File | null;
 
-    validateInputs(name, bio, username, avatarFile);
+    await validateInputs(name, bio, username, avatarFile);
 
     const updates: Record<string, any> = {
         name,
diff --git a/website/src/routes/api/settings/check-username/+server.ts b/website/src/routes/api/settings/check-username/+server.ts
index f03f501..135fafc 100644
--- a/website/src/routes/api/settings/check-username/+server.ts
+++ b/website/src/routes/api/settings/check-username/+server.ts
@@ -2,6 +2,7 @@ import { json } from '@sveltejs/kit';
 import { db } from '$lib/server/db';
 import { user } from '$lib/server/db/schema';
 import { eq } from 'drizzle-orm';
+import { isNameAppropriate } from '$lib/server/moderation';
 
 export async function GET({ url }) {
     const username = url.searchParams.get('username');
@@ -9,6 +10,10 @@ export async function GET({ url }) {
         return json({ available: false });
     }
 
+    if (!(await isNameAppropriate(username))) {
+        return json({ available: false, reason: 'Inappropriate content' });
+    }
+
     const exists = await db.query.user.findFirst({
         where: eq(user.username, username)
     });