diff --git a/functions/api/events-team/team-members/user.ts b/functions/api/events-team/team-members/user.ts
new file mode 100644
index 0000000..da3ebb9
--- /dev/null
+++ b/functions/api/events-team/team-members/user.ts
@@ -0,0 +1,49 @@
+export async function onRequestPost(context: RequestContext) {
+  const { id, name } = context.data.body;
+
+  if (
+    typeof id !== "string" ||
+    id.search(/\D/) ||
+    id.length > 19 ||
+    id.length < 17
+  )
+    return new Response('{"error":"Invalid user ID"}', {
+      headers: {
+        "content-type": "application/json",
+      },
+      status: 400,
+    });
+
+  if (typeof name !== "string" || !name.length || name.length > 32)
+    return new Response('{"error":"Invalid name"}', {
+      headers: {
+        "content-type": "application/json",
+      },
+      status: 400,
+    });
+
+  if (await context.env.DATA.get(`etmember_${id}`))
+    return new Response('{"error":"User is already a member"}', {
+      headers: {
+        "content-type": "application/json",
+      },
+      status: 400,
+    });
+
+  const createdAt = Date.now();
+  const addingUser = context.data.current_user.id;
+
+  await context.env.DATA.put(
+    `etmember_${id}`,
+    JSON.stringify({
+      created_at: createdAt,
+      created_by: addingUser,
+      name,
+    }),
+  );
+  await context.env.D1.prepare(
+    "INSERT INTO et_members (created_at, created_by, id, name) VALUES (?, ?, ?, ?);",
+  )
+    .bind(createdAt, addingUser, id, name)
+    .run();
+}