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Real-time voice, video, chat, and conversational-AI SDKs/APIs for developers building interactive communication features into apps.
Lightweight MIT-licensed JavaScript chatbot UI widget for building support-agent chat interfaces on top of any LLM.
Human-friendly API testing client for terminal, desktop and web, known for readable syntax; the CLI is open source.
Speech-to-text API infrastructure with multilingual real-time and batch transcription for building voice products.
Free trial available
No public pricing
No public pricing
No public pricing
Free trial available
- ✦Video and voice call SDKs
- ✦Live streaming SDK for interactive broadcasts
- ✦In-app chat API
- ✦Cloud recording of audio/video streams
- ✦AI face effects and digital-human generation
- ✦Conversational AI agent building tools
- ✦20+ pre-built UIKits for rapid app development
- ✦Real-time cloud speech transcription
- ✦MIT-licensed and free to use
- ✦Lightweight (~65kb) JavaScript widget
- ✦4 message display modes plus typewriter effect
- ✦Markdown support and chat history
- ✦Backend hook to integrate any LLM
- ✦Responsive, mobile-friendly, read-only mode
- ✦Human-friendly command-line HTTP client
- ✦Web and desktop GUI apps
- ✦Simple, readable request syntax
- ✦Request export/import and history
- ✦Path parameters and 'copy as command'
- ✦Open-source terminal version
- ✦Real-time multilingual speech-to-text (<300ms)
- ✦Batch/async transcription
- ✦Solaria speech models
- ✦Key-entity capture and enrichment
- ✦EU data residency
- ✦Free tier and playground
- →App developers adding live video or voice chat
- →Social and dating apps needing engagement features
- →Telehealth platforms requiring secure video calls
- →E-commerce brands adding live-streaming shopping
- →Education platforms needing interactive whiteboards
- →Adding an AI chat UI to web apps
- →Building LLM-powered support agents
- →Embedding chat widgets in existing products
- →Prototyping chatbot interfaces
- →Testing REST APIs
- →Sending and inspecting HTTP requests
- →Debugging web services
- →Sharing API requests across a team
- →Transcribe voice-agent and contact-center calls
- →Power meeting-assistant note taking
- →Generate subtitles and media transcripts
- →Build voice products on one API