You may need a visa for Madagascar if you have a United States passport
Visa options for Madagascar (2)
Electronic visitor visa
Travellers need a visa to visit Madagascar for Business or Tourism for more than 15 days. Travellers do not need a visa if staying for 15 days or less but must pay a EUR 10 administrative fee on arrival. An eVisa is the fastest and easiest way of obtaining a visa for Madagascar because travellers can submit their applications and supporting documents online. Once the application is approved, travellers receive their eVisa confirmation electronically.
This is not offered by sherpa°.
Apply on the government site.
Visa on arrival is required for trips longer than 15 days
Travellers need a visa to visit Madagascar for Business or Tourism for more than 15 days. Travellers do not need a visa if staying for 15 days or less but must pay a EUR 10 administrative fee on arrival. Travellers visiting for more than 15 days can get a visa on arrival in Madagascar at the port of entry, such as an international airport or border crossing. Or embassy visa for travellers visiting Madagascar. The visa is typically a stamp or sticker added to the passport. Travellers must obtain this visa from a local embassy, consulate or visa center before travelling.
This is not offered by sherpa°.
Apply on the government site.