diff --git a/src/sourceFiles/index.ts b/src/sourceFiles/index.ts
index 23b5ebd56..67685ee70 100644
--- a/src/sourceFiles/index.ts
+++ b/src/sourceFiles/index.ts
@@ -144,6 +144,51 @@ export class SourceFiles extends CrowdinApi {
         return this.patch(url, request, this.defaultConfig());
     }
 
+    /**
+     * @param projectId project identifier
+     * @param branchId branch identifier
+     * @param request request body
+     * @see https://support.crowdin.com/developer/api/v2/string-based/#tag/Branches/operation/api.projects.branches.merges.post
+     */
+    mergeBranch(
+        projectId: number,
+        branchId: number,
+        request: SourceFilesModel.MergeBranchRequest,
+    ): Promise<ResponseObject<Status<SourceFilesModel.MergeBranchAttributes>>> {
+        const url = `${this.url}/projects/${projectId}/branches/${branchId}/merges`;
+        return this.post(url, request, this.defaultConfig());
+    }
+
+    /**
+     * @param projectId project identifier
+     * @param branchId branch identifier
+     * @param mergeId merge branch identifier
+     * @see https://support.crowdin.com/developer/api/v2/string-based/#tag/Branches/operation/api.projects.branches.merges.get
+     */
+    checkBranchMergeStatus(
+        projectId: number,
+        branchId: number,
+        mergeId: string,
+    ): Promise<ResponseObject<Status<SourceFilesModel.MergeBranchAttributes>>> {
+        const url = `${this.url}/projects/${projectId}/branches/${branchId}/merges/${mergeId}`;
+        return this.get(url, this.defaultConfig());
+    }
+
+    /**
+     * @param projectId project identifier
+     * @param branchId branch identifier
+     * @param mergeId merge branch identifier
+     * @see https://support.crowdin.com/developer/api/v2/string-based/#tag/Branches/operation/api.projects.branches.merges.summary.get
+     */
+    getBranchMergeSummary(
+        projectId: number,
+        branchId: number,
+        mergeId: string,
+    ): Promise<ResponseObject<SourceFilesModel.MergeBranchSummary>> {
+        const url = `${this.url}/projects/${projectId}/branches/${branchId}/merges/${mergeId}/summary`;
+        return this.get(url, this.defaultConfig());
+    }
+
     /**
      * @param projectId project identifier
      * @param options optional parameters for the request
@@ -540,6 +585,30 @@ export namespace SourceFilesModel {
         title?: string;
     }
 
+    export interface MergeBranchRequest {
+        deleteAfterMerge?: boolean;
+        sourceBranchId: number;
+        dryRun?: boolean;
+    }
+
+    export interface MergeBranchAttributes {
+        sourceBranchId: number;
+        deleteAfterMerge: boolean;
+    }
+
+    export interface MergeBranchSummary {
+        status: string;
+        sourceBranchId: number;
+        targetBranchId: number;
+        dryRun: boolean;
+        details: {
+            added: number;
+            deleted: number;
+            updated: number;
+            conflicted: number;
+        };
+    }
+
     export type Priority = 'low' | 'normal' | 'high';
 
     export interface ListProjectDirectoriesOptions extends PaginationOptions {
diff --git a/tests/sourceFiles/api.test.ts b/tests/sourceFiles/api.test.ts
index 4f1571f33..cebbc30ca 100644
--- a/tests/sourceFiles/api.test.ts
+++ b/tests/sourceFiles/api.test.ts
@@ -16,6 +16,9 @@ describe('Source Files API', () => {
     const fileRevisionId = 888;
 
     const branchId = 12;
+    const sourceBranchId = 14;
+    const mergeBranchId = 'merge-123';
+    const mergeBranchStatus = 'merged';
     const branchName = 'master';
     const branchTitle = 'testTitle';
     const storageId = 123;
@@ -160,6 +163,42 @@ describe('Source Files API', () => {
                     title: branchTitle,
                 },
             })
+            .post(
+                `/projects/${projectId}/branches/${branchId}/merges`,
+                {
+                    sourceBranchId,
+                },
+                {
+                    reqheaders: {
+                        Authorization: `Bearer ${api.token}`,
+                    },
+                },
+            )
+            .reply(200, {
+                data: {
+                    identifier: mergeBranchId,
+                },
+            })
+            .get(`/projects/${projectId}/branches/${branchId}/merges/${mergeBranchId}`, undefined, {
+                reqheaders: {
+                    Authorization: `Bearer ${api.token}`,
+                },
+            })
+            .reply(200, {
+                data: {
+                    identifier: mergeBranchId,
+                },
+            })
+            .get(`/projects/${projectId}/branches/${branchId}/merges/${mergeBranchId}/summary`, undefined, {
+                reqheaders: {
+                    Authorization: `Bearer ${api.token}`,
+                },
+            })
+            .reply(200, {
+                data: {
+                    status: mergeBranchStatus,
+                },
+            })
             .get(`/projects/${projectId}/directories`, undefined, {
                 reqheaders: {
                     Authorization: `Bearer ${api.token}`,
@@ -506,6 +545,23 @@ describe('Source Files API', () => {
         expect(branch.data.title).toBe(branchTitle);
     });
 
+    it('Merge branch', async () => {
+        const mergeStatus = await api.mergeBranch(projectId, branchId, {
+            sourceBranchId,
+        });
+        expect(mergeStatus.data.identifier).toBe(mergeBranchId);
+    });
+
+    it('Check Branch Merge Status', async () => {
+        const mergeStatus = await api.checkBranchMergeStatus(projectId, branchId, mergeBranchId);
+        expect(mergeStatus.data.identifier).toBe(mergeBranchId);
+    });
+
+    it('Get Branch Merge Summary', async () => {
+        const mergeStatus = await api.getBranchMergeSummary(projectId, branchId, mergeBranchId);
+        expect(mergeStatus.data.status).toBe(mergeBranchStatus);
+    });
+
     it('List project directories', async () => {
         const directories = await api.listProjectDirectories(projectId);
         expect(directories.data.length).toBe(1);