JERUSALEM — Iran offered conciliatory words over its nuclear program yesterday, indicating its willingness to find a diplomatic solution to the confrontation with the international community.

The apparent softening of Iran’s position came after the European Union’s foreign policy chief, Javier Solana, led a delegation of senior diplomats from five countries, including Britain, on an official visit to Tehran.

They formally offered to help Iran with a civilian nuclear program and extend other economic and political concessions, but only if Tehran obeys the United Nations and stops enriching uranium.

While there was no definitive response from Tehran, first signs suggested that Iran would keep open the diplomatic channel and refrain from rejecting the offer out of hand.

The speaker of parliament and a former nuclear negotiator for iran, Ali Larijani, was careful not to dismiss the proposal in a radio interview. “The parliament will carefully study the package,” he said.

Mr. Larijani said Iran would welcome negotiations, but warned the West not to expect “Iranians to forget” their rights. Another influential Iranian member of Parliament, Allaeddin Boroujerdi, told the official news agency, IRNA, that “we can reach an agreement over common points.”