diff --git a/src/api/ghost/ghost.api.spec.ts b/src/api/ghost/ghost.api.spec.ts
index 4eb905b..af422cd 100644
--- a/src/api/ghost/ghost.api.spec.ts
+++ b/src/api/ghost/ghost.api.spec.ts
@@ -4,7 +4,7 @@ import {instance, mock, when} from 'ts-mockito';
 import {AxiosSupplier} from '@/api/axios/axios.supplier';
 import {HttpClient} from '@/api/axios/http.client';
 import {GhostApi} from '@/api/ghost/ghost.api';
-import {Ghost} from '@/types';
+import {Ghost, GhostDto} from '@/types';
 
 describe('GhostApi', () => {
   const mockAdapter = new MockAdapter(axios);
@@ -15,22 +15,179 @@ describe('GhostApi', () => {
   const ghostApi = new GhostApi(httpClient);
   let responseData: Ghost;
   const domain = 'ghosts';
+
+  responseData = {
+    name: 'Token Name1',
+    gene: 'token ID',
+    tokenId: 1,
+    userAddress: 'user1',
+    level: 1,
+    angelPoint: 10,
+    devilPoint: 20,
+    createdDate: Date.now(),
+  };
+
   describe('getByPage()', () => {
     const page = 1;
+
     it('should return ghosts', async () => {
-      responseData = {
-        name: 'Token Name1',
-        gene: 'token ID',
-        tokenId: 1,
-        userAddress: 'user1',
-        level: 1,
-        angelPoint: 10,
-        devilPoint: 20,
-        createdDate: Date.now(),
-      };
       mockAdapter.onGet(`/${domain}?page=${page}`).reply(200, responseData);
 
       expect(await ghostApi.getByPage(page)).toEqual(responseData);
     });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onGet(`/${domain}?page=${page}`).reply(404);
+
+      await expect(ghostApi.getByPage(page))
+          .rejects
+          .toThrow(new Error('Request failed with status code 404'));
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onGet(`/${domain}?page=${page}`).networkError();
+
+      await expect(ghostApi.getByPage(page))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
+  });
+
+  describe('get()', () => {
+    const id = 1;
+
+    it('should return ghost', async () => {
+      mockAdapter.onGet(`/${domain}/get?id=${id}`).reply(200, responseData);
+
+      expect(await ghostApi.get(id)).toEqual(responseData);
+    });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onGet(`/${domain}/get?id=${id}`).reply(404);
+
+      await expect(ghostApi.get(id))
+          .rejects
+          .toThrow(new Error('Request failed with status code 404'));
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onGet(`/${domain}/get?id=${id}`).networkError();
+
+      await expect(ghostApi.get(id))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
+  });
+
+  describe('getByUser()', () => {
+    const userAddress = 'user1';
+
+    it('should return ghost', async () => {
+      mockAdapter.onGet(`${domain}?userAddress=${userAddress}`).reply(200, responseData);
+
+      expect(await ghostApi.getByUser(userAddress)).toEqual(responseData);
+    });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onGet(`${domain}?userAddress=${userAddress}`).reply(404);
+
+      await expect(ghostApi.getByUser(userAddress))
+          .rejects
+          .toThrow(new Error('Request failed with status code 404'));
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onGet(`${domain}?userAddress=${userAddress}`).networkError();
+
+      await expect(ghostApi.getByUser(userAddress))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
+  });
+
+  describe('createEgg()', () => {
+    const gene = 'token ID';
+    const id = 1;
+    const owner = 'user1';
+    const ghostDto: GhostDto = {gene, tokenId: id, owner};
+
+    it('should create ghost', async () => {
+      mockAdapter.onPost(`${domain}/create-egg`, ghostDto).reply(200, responseData);
+
+      expect(await ghostApi.createEgg(gene, id, owner)).toEqual(responseData);
+    });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onPost(`${domain}/create-egg`, ghostDto).reply(404);
+
+      await expect(ghostApi.createEgg(gene, id, owner))
+          .rejects
+          .toThrow(new Error('Request failed with status code 404'));
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onPost(`${domain}/create-egg`, ghostDto).networkError();
+
+      await expect(ghostApi.createEgg(gene, id, owner))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
+  });
+
+  describe('levelUp()', () => {
+    const gene = 'token ID';
+    const level = 2;
+
+    it ('should level of ghost increase', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/level-up`, {gene, level})
+          .reply(202, responseData);
+
+      expect(await ghostApi.levelUp(gene, level)).toEqual(responseData);
+    });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/level-up`, {gene, level}).reply(404);
+
+      await expect(ghostApi.levelUp(gene, level))
+          .rejects
+          .toThrow('Request failed with status code 404');
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/level-up`, {gene, level}).networkError();
+
+      await expect(ghostApi.levelUp(gene, level))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
+  });
+
+  describe('transfer()', () => {
+    const from = 'user1';
+    const to = 'user2';
+    const gene = 'token ID';
+
+    it('should transfer ghost', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/transfer`, {from, to, gene})
+          .reply(202, responseData);
+
+      expect(await ghostApi.transfer(from, to, gene)).toEqual(responseData);
+    });
+
+    it('should return 404 error', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/transfer`, {from, to, gene}).reply(404);
+
+      await expect(ghostApi.transfer(from, to, gene))
+          .rejects
+          .toThrow(new Error('Request failed with status code 404'));
+    });
+
+    it('should return network error', async () => {
+      mockAdapter.onPut(`${domain}/${gene}/transfer`, {from, to, gene}).networkError();
+
+      await expect(ghostApi.transfer(from, to, gene))
+          .rejects
+          .toThrow(new Error('Network Error'));
+    });
   });
 });
diff --git a/src/api/ghost/ghost.api.ts b/src/api/ghost/ghost.api.ts
index 4df1b47..2155ceb 100644
--- a/src/api/ghost/ghost.api.ts
+++ b/src/api/ghost/ghost.api.ts
@@ -1,6 +1,6 @@
 import {Service} from 'typedi';
 import {HttpClient} from '@/api/axios/http.client';
-import {Ghost} from '@/types';
+import {Ghost, GhostDto} from '@/types';
 
 @Service()
 export class GhostApi {
@@ -9,6 +9,27 @@ export class GhostApi {
   constructor(private httpClient: HttpClient) {}
 
   public async getByPage(page: number): Promise<Ghost[]> {
-    return await this. httpClient.call<Ghost[]>('GET', `${this.domain}?page=${page}`);
+    return await this.httpClient.call<Ghost[]>('GET', `${this.domain}?page=${page}`);
+  }
+
+  public async get(id: number): Promise<Ghost> {
+    return await this.httpClient.call<Ghost>('GET', `${this.domain}/get?id=${id}`);
+  }
+
+  public async getByUser(userAddress: string): Promise<Ghost[]> {
+    return await this.httpClient.call<Ghost[]>('GET', `${this.domain}?userAddress=${userAddress}`);
+  }
+
+  public async createEgg(gene: string, id: number, owner: string): Promise<Ghost> {
+    const ghostDto: GhostDto = {gene, tokenId: id, owner};
+    return await this.httpClient.call<Ghost>('POST', `${this.domain}/create-egg`, ghostDto, {});
+  }
+
+  public async levelUp(gene: string, level: number): Promise<Ghost> {
+    return await this.httpClient.call<Ghost>('PUT', `${this.domain}/${gene}/level-up`, {gene, level}, {});
+  }
+
+  public async transfer(from: string, to: string, gene: string): Promise<Ghost> {
+    return await this.httpClient.call<Ghost>('PUT', `${this.domain}/${gene}/transfer`, {from, to, gene}, {});
   }
 }
diff --git a/src/types/ghost.ts b/src/types/ghost.ts
index 2cdac98..37addcd 100644
--- a/src/types/ghost.ts
+++ b/src/types/ghost.ts
@@ -8,3 +8,9 @@ export interface Ghost {
   readonly devilPoint: number;
   readonly createdDate: number;
 }
+
+export interface GhostDto {
+  gene: string;
+  tokenId: number;
+  owner: string;
+}