diff --git a/src/GiteaClient.gs b/src/GiteaClient.gs
new file mode 100644
index 0000000..5734361
--- /dev/null
+++ b/src/GiteaClient.gs
@@ -0,0 +1,106 @@
+/**
+ * GiteaClient - Low-level API wrapper for Gitea Git Hosting
+ */
+
+/**
+ * Helper to ensure the base URL always points to the Gitea API root (/api/v1)
+ * @return {string} Normalized API base URL
+ */
+function getGiteaApiBaseUrl_() {
+  const config = getGiteaConfig();
+  let baseUrl = config.baseUrl.replace(/\/$/, ''); // Remove trailing slash
+  
+  // Ensure the URL ends with /api/v1
+  if (!baseUrl.endsWith('/api/v1')) {
+    baseUrl += '/api/v1';
+  }
+  
+  return baseUrl;
+}
+
+function giteaRequest_(method, path, payload = null) {
+  const apiBaseUrl = getGiteaApiBaseUrl_();
+  const config = getGiteaConfig();
+  
+  // Ensure path starts with a single slash
+  const normalizedPath = path.startsWith('/') ? path : '/' + path;
+  const url = `${apiBaseUrl}${normalizedPath}`;
+  
+  console.log(`Gitea Request: [${method}] ${url}`);
+  
+  const options = {
+    method: method,
+    headers: {
+      'Authorization': `token ${config.token}`,
+      'Content-Type': 'application/json'
+    },
+    muteHttpExceptions: true
+  };
+
+  if (payload) {
+    options.payload = JSON.stringify(payload);
+  }
+
+  try {
+    const response = UrlFetchApp.fetch(url, options);
+    const code = response.getResponseCode();
+    const rawContent = response.getContentText();
+    
+    let json;
+    try {
+      json = JSON.parse(rawContent);
+    } catch (e) {
+      json = null; // Not a JSON response
+    }
+
+    if (code >= 200 && code < 300) {
+      return { ok: true, data: json || rawContent };
+    }
+    
+    // Return structured error with raw body if JSON parsing failed
+    return { 
+      ok: false, 
+      message: json && json.message ? json.message : `Gitea API Error ${code}`, 
+      code: code,
+      rawBody: rawContent 
+    };
+  } catch (e) {
+    return { ok: false, message: `Gitea Connection Error: ${e.message}` };
+  }
+}
+
+function getGiteaRepo() {
+  const config = getGiteaConfig();
+  // Path is relative to /api/v1
+  return giteaRequest_('GET', `/repos/${config.owner}/${config.repo}`);
+}
+
+function createGiteaIssue(title, body) {
+  const config = getGiteaConfig();
+  return giteaRequest_('POST', `/repos/${config.owner}/${config.repo}/issues`, {
+    title: title,
+    body: body
+  });
+}
+
+function createOrUpdateRepoFile(path, content, message, branch) {
+  const config = getGiteaConfig();
+  const targetBranch = branch || config.branch;
+  
+  // Gitea requires SHA for updates. This is a simplified boilerplate.
+  return giteaRequest_('POST', `/repos/${config.owner}/${config.repo}/contents/${path}`, {
+    content: content,
+    message: message,
+    branch: targetBranch
+  });
+}
+
+function createReleaseTag(tagName, name, body, target) {
+  const config = getGiteaConfig();
+  return giteaRequest_('POST', `/repos/${config.owner}/${config.repo}/releases`, {
+    tag_name: tagName,
+    name: name,
+    body: body,
+    target_commitish: target || config.branch
+  });
+}