The Banking Inquiry has said tonight that the IMF has not made a formal decision on whether to attend the inquiry to give evidence.
However the fund has offered to assist with relevant public documentation.
The OECD has also indicated that it looks forward to opportunities for cooperation with the Oireachtas.
In a statement, an inquiry spokesman said, "the key issue for the Inquiry is the ability to obtain relevant information and documentation that may assist the Committee in its work and it now looks forward to positive engagement with both organisations.
Earlier Fianna Fáil Senator Marc McSharry, who is a member of the Banking Inquiry, said the two bodies have indicated that they will not attend the inquiry's public hearings.
It is understood that they were scheduled to appear before public sessions in February.
The ECB has already declined to attend as a formal participant at the Inquiry.
However, in Davos last week, Taoiseach Enda Kenny indicated that former ECB President Jean-Claude Trichet was willing to engage with the inquiry - possibly at a hearing hosted by the European Parliament in Brussels.
Senator McSharry described the decision of all three bodies as totally unacceptable.
