249 listed
Agent infrastructure
The services agents run on: memory, code sandboxes, browsers, voice, search and scraping APIs, vector databases, LLM gateways, inference, durable execution and hosting. Facts such as self-hosting and compliance come from each vendor's own pages, with links.
Showing 1–15 of 15
- 0.840score
LiveKit Cloud
LiveKit
Cloud platform for deploying and observing voice, video and physical AI agents, built on an open-source agents framework.
InfrastructureAFreshness: A↓ 963.9K/wkvoice - 0.599score
Bland AI
Bland AI
Voice AI agents for regulated, high-stakes phone calls, run end to end on Bland's own speech, language and voice models.
InfrastructureAFreshness: Avoice - 0.599score
Deepgram Voice Agent API
Deepgram
One real-time API for voice agents combining speech-to-text, LLM orchestration and text-to-speech, priced at $4.50/hr.
InfrastructureAFreshness: Avoice - 0.597score
Daily
Daily
Global WebRTC infrastructure and SDKs for realtime voice and video, from the team behind Pipecat.
InfrastructureAFreshness: Avoice - 0.597score
Telnyx Voice AI Agents
Telnyx
Voice AI agents on Telnyx carrier infrastructure, with telephony, speech, LLM inference and orchestration on one platform.
InfrastructureAFreshness: Avoice - 0.597score
Vapi
Vapi
Developer platform for building voice AI agents that make and receive phone calls.
InfrastructureAFreshness: Avoice - 0.596score
Pipecat Cloud
Daily
Hosted platform for deploying and scaling Pipecat voice and multimodal agents, with autoscaling and observability.
InfrastructureAFreshness: Avoice - 0.595score
Synthflow
Synthflow
Voice AI agents for enterprise phone calls, with in-house telephony and a Build, Evaluate, Launch, Learn workflow.
InfrastructureAFreshness: Avoice - 0.594score
Agora Conversational AI Engine
Agora
Conversational AI engine that lets any LLM listen and reply in real time, with ASR and TTS selection, interruption handling and noise suppression.
InfrastructureAFreshness: Avoice - 0.594score
Cartesia
Cartesia
Speech-to-text, text-to-speech and managed voice agents in one API for live conversation.
InfrastructureAFreshness: Avoice - 0.594score
Retell AI
Retell AI
Platform to build, test, deploy and monitor AI voice and chat agents, with telephony, prompts, tools and analytics.
InfrastructureAFreshness: Avoice - 0.587score
ElevenLabs Agents
ElevenLabs
Build, test and deploy voice, chat and email AI agents for websites, apps and call centers, in 90+ languages.
InfrastructureAFreshness: Avoice - 0.581score
Twilio ConversationRelay
Twilio
Voice AI for customer calls, with Twilio handling speech-to-text and text-to-speech over a WebSocket API and your choice of LLM.
InfrastructureAFreshness: Avoice - 0.570score
Ultravox
Ultravox (Fixie)
Multimodal LLM that takes speech input directly, without a separate speech recognition stage, for real-time voice agents.
InfrastructureDFreshness: D★ 4.6Kvoice - 0.540score
OpenAI Realtime API
OpenAI
Speech-to-speech voice agent API where the model works on audio directly, with tool calls, over WebRTC or WebSocket.
InfrastructureAFreshness: Avoice