There are other agreements forged in Algiers. See: Algiers Agreement
The Algiers Accords of January 19, 1981, were brokered by the Algerian government between the USA and Iran to resolve the Iran hostage crisis that arose by the capture of American citizens in the American embassy in Tehran.
By this accord the American citizens were set free.
Among its provisions it was stated:
The US would not intervene in Iranian internal affairs
The US would remove a freeze on Iranian assets and trade sanctions on Iran
Both countries would end litigation between their respective governments and citizens referring them to international arbitration, namely the Iran-United States Claims Tribunal.
The US would ensure that US court decisions regarding the transfer of any property of the former Shah would be independent from "sovereign immunity principles" and would be enforced
Iranian debts to US institutions would be paid
The US chief negotiator was then-Deputy Secretary of State Warren Christopher.