The attacks, including one of the deadliest bombings in Kabul since the US invasion, came after Washington's recent decision to freeze nearly USD 2 billion in aid to Pakistan in a bid to halt its alleged support for militant groups including the Afghan Taliban and the affiliated Haqqani Network.
Kabul is on edge after militants stormed a luxury hotel, bombed a crowded street and raided a military compound in the past two weeks.
Both attacks have been claimed by the Taliban. The Haqqani leader, Sirajuddin Haqqani, is deputy chief of the Taliban.
Mohammad Masoom Stanekzai, the head of Afghanistan's spy agency, told reporters today it was clear that the attacks were "planned from across the border".
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"We asked Pakistan to hand over the culprits of the attacks in Afghanistan and we shared undeniable evidence that the attacks were planned there," Stanekzai said, a day after meeting with top Pakistani officials in Islamabad.
The Pakistani embassy in Kabul said the information provided by Stanekzai was "being examined for its authenticity".
Pakistani foreign minister Khawaja Asif described the talks with the Afghan delegation as "productive", a ministry statement said.
Kabul, along with Washington, has long accused Islamabad of providing safe havens to leaders of the Taliban and other militant groups.
Pakistan denies the charges, insisting it has eradicated safe havens in the tribal region along the border with Afghanistan. The area is largely inaccessible to foreign journalists.
US President Donald Trump has ratcheted up the pressure on Pakistan in 2018 with the aid freeze. Some analysts warn there may be no real way to pressure Islamabad, which believes keeping Kabul out of India's orbit is more important than clamping down on cross-border militancy.
Earlier this week a foreign ministry spokesman tweeted that in November 2017 Pakistan had handed over 27 suspected Afghan Taliban or Haqqani Network militants. It did not offer further details.
A number of small protests were held on Thursday, including outside the Pakistani embassy, but few people turned out as the city remains on high alert for further assaults.