ApiOpenStudio, Kong, Ping Identity, Apache APISIX, Gravitee.io, API Tester, KrakenD, WSO2 API Manager, VMware AirWatch, API Umbrella, 3Scale, MobileIron, Mashape, IBM Bluemix, DreamFactory, Tyk Cloud, Pushlink, Microsoft Enterprise Mobility, Mashery, APIbond, DigitMarket API Manager, Sentinet are some alternatives to Apigee.