diff --git a/src/repositories/donationRepository.ts b/src/repositories/donationRepository.ts
index caa7b3ae8..9bf2825fc 100644
--- a/src/repositories/donationRepository.ts
+++ b/src/repositories/donationRepository.ts
@@ -26,6 +26,19 @@ export const fillQfRoundDonationsUserScores = async (): Promise<void> => {
   `);
 };
 
+export const addressHasDonated = async (address: string) => {
+  const projectAddress = await Donation.query(
+    `
+          SELECT "id"
+          FROM donation
+          where lower("fromWalletAddress") = $1
+          limit 1
+    `,
+    [address.toLowerCase()],
+  );
+  return projectAddress.length > 0;
+};
+
 export const createDonation = async (data: {
   amount: number;
   project: Project;
diff --git a/src/resolvers/userResolver.ts b/src/resolvers/userResolver.ts
index a03f3906a..15ace1d8c 100644
--- a/src/resolvers/userResolver.ts
+++ b/src/resolvers/userResolver.ts
@@ -18,6 +18,8 @@ import { SegmentAnalyticsSingleton } from '../services/segment/segmentAnalyticsS
 import { AppDataSource } from '../orm';
 import { getGitcoinAdapter } from '../adapters/adaptersFactory';
 import { logger } from '../utils/logger';
+import { isWalletAddressInPurpleList } from '../repositories/projectAddressRepository';
+import { addressHasDonated } from '../repositories/donationRepository';
 
 @Resolver(of => User)
 export class UserResolver {
@@ -29,6 +31,14 @@ export class UserResolver {
     // return User.create(data).save();
   }
 
+  @Query(returns => Boolean)
+  async walletAddressUsed(@Arg('address') address: string): Promise<Boolean> {
+    return (
+      (await isWalletAddressInPurpleList(address)) ||
+      (await addressHasDonated(address))
+    );
+  }
+
   @Query(returns => UserByAddressResponse, { nullable: true })
   async userByAddress(
     @Arg('address', type => String) address: string,