What Text-To-Speech API (TTS) services exist?

Question

I want to run text-to-speech conversion on my server using a service over an API.

Google Text-To-Speech (TTS) is not available for this now. What alternatives are available (both paid and free)?

Answer 1

Here's a selection of RESTful service providers that I know of.

• Cereproc
• Ivona
• iSpeech
• Nuance
• Microsoft (Project Oxford)
• Watson
• Neo
• Acapela
• AT&T (think this is closed to new users now)

There are others, some free - but lower quality. You get what you pay for...