diff --git a/federation/src/graphql/api/1_0/model/GetPublicKeyResult.ts b/federation/src/graphql/api/1_0/model/GetPublicKeyResult.ts
new file mode 100644
index 000000000..1582ad892
--- /dev/null
+++ b/federation/src/graphql/api/1_0/model/GetPublicKeyResult.ts
@@ -0,0 +1,11 @@
+import { Field, ObjectType } from 'type-graphql'
+
+@ObjectType()
+export class GetPublicKeyResult {
+  constructor(pubKey: string) {
+    this.publicKey = pubKey
+  }
+
+  @Field(() => String)
+  publicKey: string
+}
diff --git a/federation/src/graphql/api/1_0/resolver/PublicKeyResolver.ts b/federation/src/graphql/api/1_0/resolver/PublicKeyResolver.ts
new file mode 100644
index 000000000..53f0d0bd4
--- /dev/null
+++ b/federation/src/graphql/api/1_0/resolver/PublicKeyResolver.ts
@@ -0,0 +1,18 @@
+import { Field, ObjectType, Query, Resolver } from 'type-graphql'
+import { federationLogger as logger } from '@/server/logger'
+import { Community as DbCommunity } from '@entity/Community'
+import { GetPublicKeyResult } from '../model/GetPublicKeyResult'
+
+@Resolver()
+export class PublicKeyResolver {
+  @Query(() => GetPublicKeyResult)
+  async getPublicKey(): Promise<GetPublicKeyResult> {
+    logger.info(`getPublicKey()...`)
+    const homeCom = await DbCommunity.findOneOrFail({
+      foreign: false,
+      apiVersion: '1_0',
+    })
+    logger.info(`getPublicKey()... with publicKey=${homeCom.publicKey}`)
+    return new GetPublicKeyResult(homeCom.publicKey.toString())
+  }
+}
diff --git a/federation/src/graphql/api/GetTestApiResult.ts b/federation/src/graphql/api/GetTestApiResult.ts
deleted file mode 100644
index 7c8c6c487..000000000
--- a/federation/src/graphql/api/GetTestApiResult.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { Field, ObjectType } from 'type-graphql'
-
-@ObjectType()
-export class GetTestApiResult {
-  constructor(apiVersion: string) {
-    this.api = apiVersion
-  }
-
-  @Field(() => String)
-  api: string
-}