diff --git a/src/github.js b/src/github.js
new file mode 100644
index 0000000..e568f56
--- /dev/null
+++ b/src/github.js
@@ -0,0 +1,24 @@
+import { USER } from './user.js';
+
+export const ghApi = async (path, method = 'GET', body = null) => {
+  const t = USER.githubToken;
+  if (!t) throw new Error('No GH token');
+  const r = await fetch(`https://api.github.com/repos/${path}`, {
+    method,
+    headers: {
+      'Authorization': `token ${t}`,
+      'Accept': 'application/vnd.github.v3+json',
+      'Content-Type': 'application/json'
+    },
+    body: body ? JSON.stringify(body) : null
+  });
+  if (!r.ok && r.status !== 404) throw new Error(`GH API ${r.status}`);
+  return r.status === 404 ? null : r.json();
+};
+
+export const parseGhUrl = u => {
+  const p = u.substring(5).split('/'), owner = p[0], repoPart = p[1] || '',
+    branch = repoPart.includes('@') ? repoPart.split('@')[1] : 'main',
+    repo = repoPart.split('@')[0], path = p.slice(2).join('/').replace(/\/$/, '');
+  return { owner, repo, branch, path, apiPath: `${owner}/${repo}/contents${path ? '/' + path : ''}` };
+};