AI · alternatives · 2026

24 alternatives to api.ai

Build your own Siri. Speech interface for apps and devices.

api.ai is a speech interface platform that enables developers to add voice interaction capabilities to mobile applications and devices. It provides speech-to-text and text-to-speech functionality powered by AI… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. api.ai launched in 2014; newer entries below may have overtaken it.

1. 1SA
   Siri-as-a-Service Speech API▲242

   2014 · wit.ai · its alternatives →

2. 2
   AssemblyAI - Speech-to-Text API▲996

   APIs to automatically transcribe and understand audio

   2017 · assemblyai.com · its alternatives →

3. 3
   API.AI for Google Assistant▲378

   Build conversation actions for Google Home and more

   2016 · its alternatives →

4. 4
   Play AI▲447

   The voice interface of AI

   2024 · its alternatives →

5. 5
   AI Chat-avatar▲696

   Conversational AI assistant always ready do the job for you

   2025 · pitchavatar.com · its alternatives →

6. 6
   AIPhone.AI▲671

   AI-powered phone call app with live translation

   2024 · aiphone.ai · its alternatives →

7. 7
   Init.ai▲505

   Build powerful and intelligent conversational apps 💁🤖

   2016 · its alternatives →

8. 8
   Conversation API▲275

   Build chatbots with memory using just an API

   Jan 2026 · amarsia.com · its alternatives →

9. 9
   Languify▲242

   Make every student & teacher feel like a superhero

   2023 · languify.in · its alternatives →

10. 10
    Vocalo.ai▲178

    Become a Fluent English speaker by talking with AI

    2024 · vocalo.ai · its alternatives →

11. 11
    Text to Speech API▲91

    Deliver a better voice experience

    2023 · its alternatives →

12. 12
    SpeakingAI▲131

    Practice speaking skills with personalized AI conversations

    2025 · its alternatives →

13. 13
    AI Voice Agent SDK▲295

    The open-source framework for real-time AI voice

    2025 · videosdk.live · its alternatives →

14. 14
    VoiceAI▲116

    Capture every conversation

    2023 · its alternatives →

15. 15
    Lemonfox.ai▲133

    Human Like AI Voices API – At a Fraction of the Cost.

    2025 · lemonfox.ai · its alternatives →

16. 16
    Orate▲258

    The AI toolkit for speech

    2025 · ai-sdk.dev · its alternatives →

17. 17AH
    An hour in front of you? Build your own on-device Voice AI▲17

    2017 · medium.com · its alternatives →

18. 18
    Speechly Reactive Voice UI API▲147

    Build voice features remarkably fast

    2022 · roblox.com · its alternatives →

19. 19
    Aoi Speak▲104

    Practice languages with AI and real people

    2023 · apps.apple.com · its alternatives →

20. 20
    answercall.ai▲98

    Your intelligent voice assistant

    2023 · answercall.ai · its alternatives →

21. 21
    Call an AI▲104

    Human-like AIs, available via phone 24/7

    2024 · callanai.com · its alternatives →

22. 22
    Talkio AI▲94

    AI powered language training app for the browser

    2023 · talkio.ai · its alternatives →

23. 23LA
    Learn a new language by speaking with AI▲39

    2024 · fluent.im · its alternatives →

24. 24
    VoiceXD▲86

    Design and build custom AI assistants

    2023 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →