diff --git a/cmd/api/api.go b/cmd/api/api.go
index ec3d076..02dc164 100644
--- a/cmd/api/api.go
+++ b/cmd/api/api.go
@@ -65,6 +65,28 @@ func validateAPIArgs(c *cobra.Command, args []string) error {
 // path conversion, e.g. "C:/Program Files/Git/v1/owner/repo" for input "/v1/owner/repo".
 var msysPathRe = regexp.MustCompile(`^[A-Za-z]:/`)
 
+// restoreAPIPath restores an API path polluted by MSYS2/Git Bash path
+// conversion on Windows, e.g. "C:/Program Files/Git/v1/owner/repo" -> "/v1/owner/repo".
+// If the path does not start with a drive letter, or no known API prefix is
+// found, the original path is returned unchanged.
+func restoreAPIPath(path string) string {
+	if !msysPathRe.MatchString(path) {
+		return path
+	}
+	// Pick the EARLIEST occurrence among known API prefixes, so a path like
+	// ".../api/v1/users" restores to "/api/v1/users" rather than "/v1/users".
+	bestIdx := -1
+	for _, prefix := range []string{"/v1/", "/v2/", "/api/", "/users/", "/projects/"} {
+		if idx := strings.Index(path, prefix); idx >= 0 && (bestIdx == -1 || idx < bestIdx) {
+			bestIdx = idx
+		}
+	}
+	if bestIdx >= 0 {
+		return path[bestIdx:]
+	}
+	return path
+}
+
 func runAPI(c *cobra.Command, args []string) error {
 	batchFile, _ := c.Flags().GetString("batch-file")
 	if batchFile != "" {
@@ -76,15 +98,7 @@ func runAPI(c *cobra.Command, args []string) error {
 
 	// Fix MSYS2/Git Bash path auto-conversion on Windows:
 	// "/v1/owner/repo" is rewritten to "C:/Program Files/Git/v1/owner/repo".
-	// Detect the drive-letter prefix and restore the original API path.
-	if msysPathRe.MatchString(path) {
-		for _, prefix := range []string{"/v1/", "/v2/", "/api/", "/users/", "/projects/"} {
-			if idx := strings.Index(path, prefix); idx >= 0 {
-				path = path[idx:]
-				break
-			}
-		}
-	}
+	path = restoreAPIPath(path)
 
 	if !strings.HasPrefix(path, "/") {
 		path = "/" + path
diff --git a/cmd/api/api_test.go b/cmd/api/api_test.go
index dad41a8..c0e35bc 100644
--- a/cmd/api/api_test.go
+++ b/cmd/api/api_test.go
@@ -402,3 +402,25 @@ func writeBatchPlan(t *testing.T, payload interface{}) string {
 	}
 	return path
 }
+
+func TestRestoreAPIPath(t *testing.T) {
+	tests := []struct {
+		name string
+		path string
+		want string
+	}{
+		{"normal v1 path unchanged", "/v1/owner/repo", "/v1/owner/repo"},
+		{"msys2 polluted v1", "C:/Program Files/Git/v1/owner/repo", "/v1/owner/repo"},
+		{"msys2 polluted v2", "D:/Git/v2/x/y", "/v2/x/y"},
+		{"msys2 polluted api prefix", "C:/Program Files/Git/api/v1/users", "/api/v1/users"},
+		{"drive letter but no known prefix", "C:/something/else", "C:/something/else"},
+		{"empty path", "", ""},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := restoreAPIPath(tt.path); got != tt.want {
+				t.Fatalf("restoreAPIPath(%q) = %q, want %q", tt.path, got, tt.want)
+			}
+		})
+	}
+}
diff --git a/doc/changes/api-msys2-path.md b/doc/changes/api-msys2-path.md
new file mode 100644
index 0000000..52c20b1
--- /dev/null
+++ b/doc/changes/api-msys2-path.md
@@ -0,0 +1,35 @@
+# Fix: Windows Git Bash 下 `gitlink-cli api` 路径被 MSYS2 污染导致 404
+
+## 问题
+
+在 Windows Git Bash（MSYS2）环境下执行：
+
+```bash
+gitlink-cli api GET /v1/owner/repo
+```
+
+路径参数 `/v1/owner/repo` 会被 MSYS2 自动改写为类似 `C:/Program Files/Git/v1/owner/repo` 的 Windows 路径——MSYS2 把以 `/` 开头的命令行参数当成 Unix 路径，转换为 Git 安装目录。结果 API 请求路径错误，返回 404。影响所有 Windows Git Bash 用户。
+
+## 根因
+
+MSYS2 的 POSIX→Windows 路径转换会对命令行参数中以 `/` 开头的字符串生效，且无法通过 shell 转义稳定规避（`MSYS_NO_PATHCONV` 等环境变量依赖用户配置，不可靠）。
+
+## 修复
+
+在 `cmd/api` 的 `runAPI` 中，对取到的 `path` 调用 `restoreAPIPath` 还原：
+
+- 检测首部是否为盘符（正则 `^[A-Za-z]:/`）；
+- 若是，按常见 API 前缀（`/v1/` `/v2/` `/api/` `/users/` `/projects/`）在污染后的路径里定位原始起点并截取；
+- 无盘符或无匹配前缀时原样返回，不影响其他平台与正常路径。
+
+`restoreAPIPath` 为纯函数，便于单元测试。
+
+## 影响
+
+仅 Windows 受益，其他平台行为不变。改动集中在 `cmd/api/api.go`（约 +25 行，含函数与注释）。
+
+## Tests
+
+```bash
+go test ./cmd/api/... -run TestRestoreAPIPath -v
+```