{
 "schemaVersion": 1,
 "generated": "2026-10-30",
 "dataLicense": "CC BY-SA 4.0",
 "license": "CC BY-SA 4.0",
 "notice": "Data from Open Source Everything (https://opensourceeverything.org), licensed CC BY-SA 4.0: use it freely, credit the site, link to the page, and share changes under the same license. Listings were drafted with AI assistance and are managed by the r/TrueOpenSource moderators; check a project's own page before relying on a fact.",
 "id": "voice-agents",
 "name": "AI phone and voice agents",
 "page": "https://opensourceeverything.org/g/voice-agents/",
 "category": "ai-build",
 "categoryName": "Building with AI",
 "job": "AI that answers or makes phone calls and talks in real time",
 "closedApps": [
  "Vapi",
  "Retell AI",
  "Bland AI"
 ],
 "coverage": "partial",
 "alternatives": [
  {
   "id": "pipecat",
   "name": "Pipecat",
   "page": "https://opensourceeverything.org/p/pipecat/",
   "summary": "Pipecat is a free Python framework that developers use to build AI systems that talk with people in real time, such as voice assistants and phone-style agents. It is aimed at programmers who want to build their own voice AI rather than end users.",
   "kind": "developer_tool",
   "setup": "advanced",
   "setupWhy": "Made for developers: you use it from code or the command line.",
   "platforms": [
    "windows",
    "mac",
    "linux"
   ],
   "license": "BSD-2-Clause",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 16855,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/pipecat-ai/pipecat",
   "website": "https://www.pipecat.ai",
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "pipecat",
   "rank": 1,
   "fit": "partial",
   "note": "A framework for developers to build agents; not a ready-made phone agent app.",
   "why": "Does part of the job · Advanced setup",
   "score": 38.7
  },
  {
   "id": "livekit-agents",
   "name": "LiveKit Agents",
   "page": "https://opensourceeverything.org/p/livekit-agents/",
   "summary": "LiveKit Agents is a toolkit for programmers to build AI assistants that can talk, listen, and answer or make phone calls in real time. It is aimed at developers who want to build their own voice agents instead of paying for closed services.",
   "kind": "developer_tool",
   "setup": "advanced",
   "setupWhy": "Made for developers: you use it from code or the command line.",
   "platforms": [
    "server"
   ],
   "license": "Apache-2.0",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 14968,
   "forks": null,
   "status": "active",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/livekit/agents",
   "website": null,
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "livekit-agents",
   "rank": 2,
   "fit": "partial",
   "note": "Builds voice and phone agents for developers, but is not a ready-made end-user product.",
   "why": "Does part of the job · Advanced setup",
   "score": 35.5
  },
  {
   "id": "vocode",
   "name": "Vocode",
   "page": "https://opensourceeverything.org/p/vocode/",
   "summary": "Vocode is a free software library that helps developers build voice assistants that hold live spoken conversations, including over phone calls. It is aimed at programmers who want to create AI voice agents themselves.",
   "kind": "library",
   "setup": "advanced",
   "setupWhy": "A building block for developers, not a ready-to-use app.",
   "platforms": [
    "server"
   ],
   "license": "MIT",
   "licenseClass": "open",
   "licenseNeedsCheck": false,
   "stars": 3807,
   "forks": null,
   "status": "inactive",
   "verified": false,
   "latestRelease": null,
   "code": "https://github.com/vocodedev/vocode-core",
   "website": null,
   "download": null,
   "release": null,
   "family": null,
   "familyChildren": [],
   "howToHelp": null,
   "project": "vocode",
   "rank": 3,
   "fit": "partial",
   "note": "Builds AI phone agents, but needs a programmer; no ready-made product.",
   "why": "Does part of the job · Advanced setup · No recent activity",
   "score": 6.7
  }
 ],
 "source": "https://opensourceeverything.org/g/voice-agents/",
 "group": "AI phone and voice agents",
 "replaces": [
  "Vapi",
  "Retell AI",
  "Bland AI"
 ]
}