Free / Open-sourceAI audio platform for speech, agents, music and dubbing

n8n records 4,522,449 monthly visits with -7.4% month-over-month growth and Freemium pricing. Speko records 20,954 monthly visits with -7.9% growth and Paid, Contact for Pricing pricing.

The provider-neutral router and platform for voice AI agents
| -1.8K (-7.9%) |
| Primary Market & Share | 🇮🇳 India (13.2%) | 🇺🇸 United States (62.2%) |
|---|
| Direct Visits / mo | 1.57M | 5.93K |
|---|
| User Rating | 4.7 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|
Open-source workflow automation built for AI agents and technical teams
Build automations with a visual node editor, then insert JavaScript or Python code nodes when you need custom logic.
Connect to 500+ native services, any REST API via HTTP nodes, and any agent or coding assistant through MCP.
Run agents alongside regular steps, inspect every decision, and add structured inputs, guardrails and human approval steps.
Watch workflows execute live, open past runs, replay a run with mocked data and re-run just the step that failed.

The provider-neutral router and platform for voice AI agents
STT, LLM and TTS are selected per language based on an independent benchmark covering 89 models across 18 languages, with pre-response failover.
Design a call step by step, plug calendars, CRMs, your APIs and docs into any step, then run it with inbound, outbound and call-list support.
Draft agents are tested against simulated callers, including red-team scenarios that try to break the flow, before they go live.
Every live call is scored against checks you write in everyday language, for example reading back a date or never quoting a price.
Free / Open-sourceAI audio platform for speech, agents, music and dubbing


Unmatched ecosystem of app connectors and reliability, but significantly more expensive and lacks n8n's self-hosting freedom.
#2No-code builder for custom AI agents and workflows

Real-time voice AI models and agents you can build on
Free / Open-sourceReal-time speech-to-text, text-to-speech and voice agents in one API platform
Xiaomi's multimodal model family for reasoning, vision and voice

Free / Open-sourceOutstanding open-source visual canvas for RAG pipelines and LLM agents, but less suited for general API integrations.

Free / Open-sourceBuild, test, and deploy production-grade voice AI agents over API

SpecialistMultiplayer AI where people and agents work side by side
Turn one prompt into live business apps, AI agents and automated workflows

Free / Open-sourceSpeech-to-text and voice intelligence APIs for developers

Powerful visual builder specifically tailored for complex AI agent workflows, but less mature for traditional enterprise automation.
Free / Open-sourceAI audio platform for speech, agents, music and dubbing
Unmatched ecosystem of app connectors and reliability, but significantly more expensive and lacks n8n's self-hosting freedom.
No-code builder for custom AI agents and workflows
Free / Open-sourceReal-time speech-to-text, text-to-speech and voice agents in one API platform
Free / Open-sourceOutstanding open-source visual canvas for RAG pipelines and LLM agents, but less suited for general API integrations.
SpecialistMultiplayer AI where people and agents work side by side
Free / Open-sourceSpeech-to-text and voice intelligence APIs for developers
Powerful visual builder specifically tailored for complex AI agent workflows, but less mature for traditional enterprise automation.