diff --git a/apps/server/src/sourceControl/GitLabCli.test.ts b/apps/server/src/sourceControl/GitLabCli.test.ts
index eb56b434b2f8..45b3f48c6d7c 100644
--- a/apps/server/src/sourceControl/GitLabCli.test.ts
+++ b/apps/server/src/sourceControl/GitLabCli.test.ts
@@ -1,4 +1,4 @@
-import { assert, it, afterEach, expect, vi } from "@effect/vitest";
+import { assert, it, afterEach, describe, expect, vi } from "@effect/vitest";
 import * as Effect from "effect/Effect";
 import * as Layer from "effect/Layer";
 import { ChildProcessSpawner } from "effect/unstable/process";
@@ -386,4 +386,83 @@ layer("GitLabCli.layer", (it) => {
       assert.strictEqual(error.cause, cause);
     }),
   );
+
+  it.effect("normalizes pasted repository URLs before the projects API lookup", () =>
+    Effect.gen(function* () {
+      mockedRun.mockReturnValueOnce(
+        Effect.succeed(
+          processOutput(
+            // @effect-diagnostics-next-line preferSchemaOverJson:off
+            JSON.stringify({
+              path_with_namespace: "group/sub/project",
+              web_url: "https://sourcecontrol.example.com/group/sub/project",
+              http_url_to_repo: "https://sourcecontrol.example.com/group/sub/project.git",
+              ssh_url_to_repo: "git@sourcecontrol.example.com:group/sub/project.git",
+            }),
+          ),
+        ),
+      );
+
+      const result = yield* Effect.gen(function* () {
+        const glab = yield* GitLabCli.GitLabCli;
+        return yield* glab.getRepositoryCloneUrls({
+          cwd: "/repo",
+          repository: "https://sourcecontrol.example.com/group/sub/project/",
+        });
+      });
+
+      assert.deepStrictEqual(result.nameWithOwner, "group/sub/project");
+      expect(mockedRun).toHaveBeenCalledWith(
+        expect.objectContaining({
+          command: "glab",
+          cwd: "/repo",
+          args: ["api", `projects/${encodeURIComponent("group/sub/project")}`],
+        }),
+      );
+    }),
+  );
+});
+
+describe("normalizeGitLabRepositoryPath", () => {
+  it("keeps bare namespace/project paths untouched", () => {
+    expect(GitLabCli.normalizeGitLabRepositoryPath("group/project")).toBe("group/project");
+    expect(GitLabCli.normalizeGitLabRepositoryPath("  group/sub/project  ")).toBe(
+      "group/sub/project",
+    );
+  });
+
+  it("extracts the project path from gitlab.com URLs", () => {
+    expect(GitLabCli.normalizeGitLabRepositoryPath("https://gitlab.com/group/project")).toBe(
+      "group/project",
+    );
+  });
+
+  it("extracts the project path from self-hosted URLs on any hostname", () => {
+    expect(
+      GitLabCli.normalizeGitLabRepositoryPath("https://sourcecontrol.example.com/group/project"),
+    ).toBe("group/project");
+  });
+
+  it("strips a .git suffix", () => {
+    expect(
+      GitLabCli.normalizeGitLabRepositoryPath(
+        "https://sourcecontrol.example.com/group/project.git",
+      ),
+    ).toBe("group/project");
+  });
+
+  it("keeps nested group segments", () => {
+    expect(
+      GitLabCli.normalizeGitLabRepositoryPath("https://gitlab.com/group/sub/team/project"),
+    ).toBe("group/sub/team/project");
+  });
+
+  it("ignores web UI sections and trailing slashes", () => {
+    expect(GitLabCli.normalizeGitLabRepositoryPath("https://gitlab.com/group/project/")).toBe(
+      "group/project",
+    );
+    expect(
+      GitLabCli.normalizeGitLabRepositoryPath("https://gitlab.com/group/project/-/tree/main"),
+    ).toBe("group/project");
+  });
 });
diff --git a/apps/server/src/sourceControl/GitLabCli.ts b/apps/server/src/sourceControl/GitLabCli.ts
index 9a9fc3360247..690fc0e03964 100644
--- a/apps/server/src/sourceControl/GitLabCli.ts
+++ b/apps/server/src/sourceControl/GitLabCli.ts
@@ -390,6 +390,34 @@ function toSummaryWithOptionalUpdatedAt(
   return Option.isSome(updatedAt) ? { ...summary, updatedAt } : summary;
 }
 
+/**
+ * Accept either a bare `namespace/project` path or a pasted repository URL
+ * (any host, since glab resolves against its authenticated default host) and
+ * return the project path `glab api projects/<encoded path>` expects.
+ */
+export function normalizeGitLabRepositoryPath(repository: string): string {
+  const trimmed = repository.trim();
+  if (!/^https?:\/\//i.test(trimmed)) {
+    return trimmed;
+  }
+
+  try {
+    const url = new URL(trimmed);
+    const segments = url.pathname.split("/").filter((segment) => segment.length > 0);
+    // Web URLs continue past the project into `/-/tree/main` style sections;
+    // everything from the `-` separator on belongs to the UI, not the project.
+    const separatorIndex = segments.indexOf("-");
+    const projectSegments = separatorIndex > 0 ? segments.slice(0, separatorIndex) : segments;
+    const last = projectSegments.at(-1)?.replace(/\.git$/i, "") ?? "";
+    if (projectSegments.length > 0) {
+      projectSegments[projectSegments.length - 1] = last;
+    }
+    return projectSegments.join("/");
+  } catch {
+    return trimmed;
+  }
+}
+
 function parseRepositoryPath(repository: string): {
   readonly namespacePath: string | null;
   readonly projectPath: string;
@@ -519,7 +547,10 @@ export const make = Effect.gen(function* () {
     getRepositoryCloneUrls: (input) =>
       execute({
         cwd: input.cwd,
-        args: ["api", `projects/${encodeURIComponent(input.repository)}`],
+        args: [
+          "api",
+          `projects/${encodeURIComponent(normalizeGitLabRepositoryPath(input.repository))}`,
+        ],
       }).pipe(
         Effect.map((result) => result.stdout.trim()),
         Effect.flatMap((raw) =>