JERUSALEM — Revealing a huge archive of stolen Iranian nuclear plans, Prime Minister Benjamin Netanyahu of Israel accused Iran on Monday of lying for years about its efforts to build a nuclear weapon.

Days before President Trump was to decide whether to pull out of the 2015 nuclear deal with Iran, Mr. Netanyahu presented records from a secret warehouse in Tehran, making the case that Iranian leaders had deceived the international nuclear agency when they insisted their nuclear program was for peaceful purposes. Israeli spies seized the documents in an overnight raid in January, a senior Israeli official said.

But Mr. Netanyahu did not provide any evidence that Iran had violated the nuclear agreement since it took effect in early 2016. That suggests that the Israeli prime minister — who has opposed the deal since its inception, and even went to the American Congress to try to block it — was hoping that the disclosures would bolster Mr. Trump’s resolve to scuttle the agreement on May 12.

Doing so could be one of the most momentous foreign policy decisions of Mr. Trump’s time in office. In recent days, a succession of European leaders, including President Emmanuel Macron of France and Chancellor Angela Merkel of Germany, have gone to the White House to make the case that the United States was more secure with the Iran deal than without it. Mr. Netanyahu’s presentation seemed intended to push the president in the other direction.