The AP(Advanced Placement) exam is a course which high school students can take for college credit. Usually these exams will satisfy a university's General Education/Elective (or similar designation) requirement.
The foreign language APs (Chinese, French, German, Italian, Latin, Spanish and Japanese) will usually satisfy the 100 levels, although the AP French Wikipedia page claims it is widely compared to a 300 level final exam. Splitting the difference, it should more or less cover an intermediate range.
Compared to the JLPT, it requires knowledge of 410 kanji, so just above N4 and below N3, although I suppose most grammar might remain the same. Having looked at practice/past exams, plain from and keigo make an appearance.