You may need a visa for Benin if you have a Singaporean passport
Visa options for Benin
Electronic visitor visa is required for trips longer than 14 days
Travelers need a visa to visit Benin for Business or Tourism for more than 14 days. Travelers do not need a visa if staying for 14 days or less. A Benin eVisa is the fastest and easiest way of obtaining a visa for Benin because travelers can submit their application and supporting documents online. Once the application is approved, travelers receive their eVisa confirmation electronically. A valid visa is required to board the flight. If the visa is expired or doesn’t match the traveler’s passport information, travelers will not be able to board their flight.
This is not offered by sherpa°.
Apply on the government site.