# Connect your voice stack | APIFleet

> Explore APIFleet’s implemented speech, realtime and telephone integrations. See setup fields, test plans and provider-specific boundaries.

Canonical URL: https://apifleet.dev/integrations
Markdown Mirror URL: https://apifleet.dev/integrations.md
LLM index: https://apifleet.dev/llms.txt
MCP discovery: https://apifleet.dev/.well-known/mcp.json

Choose speech, models and telephone routes independently. Each guide explains the adapter APIFleet actually implements.

Two realtime providers. Two transcription adapters. Nine speech-synthesis adapters. Four telephone carriers. HTTP tools and webhooks connect the rest of your application.

## OpenAI

Run a speech-to-speech assistant, or use an OpenAI model in a cascading pipeline.Realtime voice · Language model[Explore OpenAI →](https://apifleet.dev/integrations/openai)

## Gemini

Use Gemini Live for speech-to-speech, or choose Gemini adapters within a cascading assistant.Realtime voice · Transcription · Speech synthesis[Explore Gemini →](https://apifleet.dev/integrations/gemini)

## Deepgram

Combine streaming transcription with a separately selected voice and language model.Transcription · Speech synthesis[Explore Deepgram →](https://apifleet.dev/integrations/deepgram)

## ElevenLabs

Add an ElevenLabs voice to APIFleet’s cascading voice pipeline.Speech synthesis[Explore ElevenLabs →](https://apifleet.dev/integrations/elevenlabs)

## Cartesia

Use a Cartesia voice while keeping prompts, tools and call routing in APIFleet.Speech synthesis[Explore Cartesia →](https://apifleet.dev/integrations/cartesia)

## Azure Speech

Speak with Azure voices from a cascading assistant.Speech synthesis[Explore Azure Speech →](https://apifleet.dev/integrations/azure)

## Amazon Polly

Use an Amazon Polly voice as the output stage of a cascading assistant.Speech synthesis[Explore Amazon Polly →](https://apifleet.dev/integrations/polly)

## Soniox

Connect the implemented Soniox speech output adapter to a cascading assistant.Speech synthesis[Explore Soniox →](https://apifleet.dev/integrations/soniox)

## Piper

Use an operator-configured Piper service for speech output.Self-hosted speech synthesis[Explore Piper →](https://apifleet.dev/integrations/piper)

## Telnyx

Route Telnyx telephone calls to an assistant and optionally use Telnyx speech synthesis.Telephone carrier · Speech synthesis[Explore Telnyx →](https://apifleet.dev/integrations/telnyx)

## Twilio

Connect Twilio media streams and call routing to APIFleet assistants.Telephone carrier[Explore Twilio →](https://apifleet.dev/integrations/twilio)

## Voximplant

Connect Voximplant call handling to the APIFleet voice runtime.Telephone carrier[Explore Voximplant →](https://apifleet.dev/integrations/voximplant)

## VoIPcloud

Use the APIFleet VoIPcloud carrier integration for your telephone route.Telephone carrier[Explore VoIPcloud →](https://apifleet.dev/integrations/voipcloud)

## HTTP tools

Let an assistant call your application for availability, records or other explicit actions.Business actions[Explore HTTP tools →](https://apifleet.dev/integrations/http-tools)

## Webhooks

Send APIFleet events to your application for downstream workflows.Event delivery[Explore Webhooks →](https://apifleet.dev/integrations/webhooks)
Provider access, regional availability and limits depend on your account. [Estimate the cost of your combination →](https://apifleet.dev/tools/voice-agent-cost-calculator)

## Bring your next conversation.

Explore the API, or sign in to your existing workspace. New workspace access is currently limited; contact us to discuss your project.
[Explore the docs ](https://apifleet.dev/docs)[Sign in](https://apifleet.dev/app/assistants)[Ask about access](mailto:mariano@apifleet.dev?subject=APIFleet%20workspace%20access)