Free AI voice agents (2026)
AI voice agents that you can use without paying: open-source projects plus tools with a free plan. Here are the top 25 of 56 from the AgentScout directory.
Updated
How we picked and ranked: tools are matched by category, the pricing each maker states and what each tool says it does. They are ranked by GitHub stars as recorded on each listing (link checks 2026-10-21); tools without a tracked repo follow, by listing maturity. No paid placements.
1. LiteLLM
Open-source AI gateway and Python SDK that calls 100+ LLM providers in the OpenAI format, with cost tracking, guardrails, load balancing and logging.
Pricing (as stated): Open source + cloud · Mature
2. LocalAI
Self-hosted engine with an OpenAI-compatible API for running LLM, vision, voice and image models on your own hardware, including agents.
Pricing (as stated): Open source · Mature
3. Fish Audio
Fish Audio is a voice AI platform for text to speech, voice cloning and speech to text, with a real-time API for voice agents. Its Drama 3 and S2 models take inline emotion and delivery tags such as whispering, laughing or pauses, it can clone a voice from a few seconds of audio, and its library has more than two million community voices for narration, characters, audiobooks and support agents. The Fish Speech models behind it are published on GitHub and Hugging Face.
Pricing (as stated): Free tier (8,000 credits a month); Plus $11/mo and Pro $75/mo billed yearly ($15 and $100 monthly); Max $749/mo yearly; API billed by usage · Mature
4. XiaoZhi ESP32
Open-source voice chatbot firmware for ESP32 devices that talks through LLMs like Qwen and DeepSeek and controls hardware and services via MCP.
Pricing (as stated): Open source · Mature
5. FunASR
ModelScope's speech recognition toolkit for offline, streaming and edge ASR, with VAD, punctuation, speaker diarization and OpenAI-compatible/MCP serving.
Pricing (as stated): Open source · Mature
6. Pipecat
Open-source framework for voice and multimodal conversational agents.
Pricing (as stated): Open source · Mature
7. Bindu
Identity, communication and payments layer that lets AI agents talk to and pay each other.
Pricing (as stated): Open source · Mature
8. Vision Agents
Stream's open framework for building real-time voice and video agents with any model.
Pricing (as stated): Open source · Mature
9. Repowise
Codebase intelligence tool that indexes code, call graph, git history and docs locally and answers questions for you and your coding agent over MCP.
Pricing (as stated): Open source · Mature
10. Dograh
Self-hostable voice agent platform with a visual call-flow builder, bring-your-own speech and LLM providers and MCP control, pitched as an open alternative to Vapi and Retell.
Pricing (as stated): Open source + cloud · Mature
11. coucou
Mac notch and phone companion that monitors your Claude Code, Codex, Cursor and Gemini CLI sessions and lets you approve permissions on the go.
Pricing (as stated): Open source · Mature
12. Monid
Gateway that gives an agent one base URL and one key to call thousands of paid tools, from web scraping and enrichment to image and voice generation, billed per call.
Pricing (as stated): Open source + cloud · Mature
13. Macro
Team workspace that links email, chat, docs, tasks, calls and CRM with agents that share one team memory.
Pricing (as stated): Open source + cloud · Active
14. vocode
Open-source library for building voice-based LLM agents for phone calls and apps.
Pricing (as stated): Open source + cloud · No recent updates (last commit Nov 2024)
15. Qwen Audio Agent
Real-time voice runtime from the Qwen Audio team that keeps agents talking while they think and work on tasks.
Pricing (as stated): Open source · Active
16. Vexa
Open-source meeting transcription API with bots for Meet, Teams and Zoom.
Pricing (as stated): Open source + cloud · Active
17. ripwire
Zero-dependency CLI and MCP server that gives coding agents a ranked call graph, blast radius and tests-to-run before and after edits.
Pricing (as stated): Open source · Active
18. ElevenLabs UI
Component library on shadcn/ui with orbs, waveforms and voice-agent components for building audio and agentic apps.
Pricing (as stated): Open source · Active
19. ElatoAI
Realtime voice AI for ESP32 devices and toys with 100+ speech and LLM model options.
Pricing (as stated): Open source · Active
20. MiniMax MCP
Official MiniMax MCP server that lets agents call MiniMax text-to-speech, voice cloning, image and video generation.
Pricing (as stated): Open source · Active
21. Lody
A team workspace for running AI coding agents in parallel in isolated Git worktrees, with live diff review, GitHub integration and access from phone or desktop.
Pricing (as stated): Open source + cloud · Active
22. VoiceMode
Adds natural voice conversations to Claude Code and other assistants.
Pricing (as stated): Open source · Active
23. Andee
Andee is an Android agent you install as one APK (Android 11+, no root) that reads the screen and taps, types and replies in any app for you, keeps private on-device notes, and uses the OpenAI-compatible model and speech provider you choose.
Pricing (as stated): Free; source public under Apache-2.0 with additional conditions; you pay the model and speech providers you connect · Active
24. OpenInference
OpenTelemetry-based instrumentation that traces LLM and agent framework calls so any observability backend can show them.
Pricing (as stated): Open source · Active
25. Tel-Agent
A self-hosted AI agent that answers phone calls and handles support on WhatsApp, Telegram, web chat and email with your own models and keys.
Pricing (as stated): Open source · Active
FAQ
What are the best free AI voice agents?
Ranked by tracked GitHub stars, the top free AI voice agents in our directory are LiteLLM, LocalAI, Fish Audio, XiaoZhi ESP32, FunASR. Stars measure popularity, not fit, so compare a few against your own task.
How many free AI voice agents does AgentScout list?
56 tools match. This page shows the top 25. Pricing mix on this page: Open source (16), Open source + cloud (7), Freemium (1), Source-available (1).
Are these tools really free?
Pricing is what each maker states on their site. Open-source tools are free to self-host but may need a paid model API key or offer paid cloud plans; freemium tools have a free plan with limits. Check each official site.
Where can I see every tool for building voice agents?
Our task page lists all 90 tools we match to building voice agents.
Related: All tools for building voice agents · voice (23) · MCP servers (6) · personal agents (5) · coding (5)
Similar searches: Open-source voice AI agent frameworks
By role: For game developers
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Best-of lists: Best AI Voice Agent Platforms · All best lists
Related categories: Voice · Coding · Agent infra
Facts come from our directory listings; pricing is as each maker states it and can change. Check official sites before you choose.