{ "data": { "a": { "slug": "livekit-agents", "name": "LiveKit Agents", "vendor": "LiveKit Incorporated", "vendorUrl": "https://livekit.com", "kind": "framework", "category": "voice-agents", "summary": "LiveKit Agents is LiveKit's open-source Python and Node.js framework for realtime voice and video agents that join LiveKit rooms, with STT, LLM, TTS and realtime-model plugins, turn detection, MCP tools and telephony through LiveKit SIP.", "url": "https://www.anchorterminal.com/tools/livekit-agents", "markdownUrl": "https://www.anchorterminal.com/tools/livekit-agents.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/livekit-agents.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/livekit-agents.json", "repo": "https://github.com/livekit/agents", "license": "Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms", "transports": [], "packages": [ { "registry": "pypi", "name": "livekit-agents" }, { "registry": "npm", "name": "@livekit/agents" } ], "auth": "api-key", "authNotes": "The agent server connects to a LiveKit server with `LIVEKIT_URL`, `LIVEKIT_API_KEY` and `LIVEKIT_API_SECRET`. The key and secret sign JWT access tokens with room grants and a lifetime the issuer sets. Model plugins take each provider's own key, or LiveKit Inference uses the LiveKit Cloud project's key and secret. A self-hosted LiveKit server needs no LiveKit account, and a LiveKit Cloud project needs a browser sign-up.", "pricing": "free", "pricingNotes": "The framework is free under Apache-2.0, and you pay for models and for hosting. LiveKit Cloud's Build plan is $0 with no card, with 1,000 agent session minutes, 5 concurrent sessions and $2.50 of LiveKit Inference credit, as a hard cap. Ship starts at $50 a month and Scale at $500, with agent session minutes at $0.01 past the allowance and LiveKit Inference models billed per minute, per character or per token (https://livekit.com/pricing.md, checked 2026-10-17).", "priceSummary": "Free · OSS", "where": "library", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the repository source, the docs (llms-full.txt) or the pricing page, checked 2026-10-17.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 14719, "npmWeekly": 819555, "pypiWeekly": 1055589, "asOf": "2026-10-17" }, "docsUrl": "https://docs.livekit.io/agents/", "llmsTxt": "https://docs.livekit.io/llms.txt", "capabilities": [ "voice.agent", "voice.pipeline", "voice.speech-to-speech", "voice.tools", "voice.telephony", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "framework", "official", "python", "typescript", "open-source", "apache-2.0", "self-hosted", "llms-txt", "pipeline", "speech-to-speech", "webrtc", "sip", "no-card" ], "lastRelease": "2026-10-15", "graded": true, "anchor": { "graded": true, "score": 72.5, "grade": "BB", "agentReady": true, "rank": 104, "ranked": true, "rankOf": 1133, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 80, "maintenance": 85, "payments": 60, "reliability": 67, "schema": 81, "security": 62, "transparency": 82 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": 0, "verdict": "An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.", "bestFor": "Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.", "strengths": [ "Apache-2.0 Python and Node.js packages, with 17 Python releases in the 90 days to 15 October 2026", "MCP client with `allowed_tools`, `filter_tools()` and `tool_result_resolver` to limit tools and trim results (Python only)", "Voice-specific tool controls. `disallow_interruptions()`, four `on_duplicate` modes, and interrupted tools keep their result so the model doesn't call them again", "79 provider plugin packages, or LiveKit Inference model strings with one LiveKit key and zero data retention under LiveKit's terms", "Runs entirely self-hosted, with the local `v1-mini` turn detector and no LiveKit account" ], "weaknesses": [ "The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output", "No CHANGELOG file, release notes only on GitHub, and 2.0.0b1 on PyPI since 12 October 2026 with no migration guide found", "705 open issues and pull requests per a GitHub mirror, and 41 of the 68 open issues among the latest 100 had no comment", "No built-in approval step for tool calls, and no prompt-injection guidance found in the docs", "In `dev` mode with LiveKit Cloud credentials, the default turn detector streams user audio to LiveKit Inference" ], "agentNotes": [ "Set `LIVEKIT_URL`, `LIVEKIT_API_KEY` and `LIVEKIT_API_SECRET` before starting. Every agent joins a LiveKit room, on LiveKit Cloud or a self-hosted server", "Pass `inference.TurnDetector(version=\"v1-mini\")` to keep turn detection local, and read `MODEL_LICENSE` before using LiveKit's turn models anywhere but LiveKit Agents", "Pass `record=False`, or a dict per category, to `session.start()` if audio, transcripts, traces and logs must not reach LiveKit Cloud", "Call `context.disallow_interruptions()` first in tools that write, and set `on_duplicate=\"reject\"` or `\"confirm\"`. Duplicates are matched by tool name only, not arguments", "Wrap MCP servers in `mcp.MCPToolset` with `allowed_tools` (Python only). The `mcp_servers` parameter is deprecated" ], "metrics": { "kind": "library", "measured": false }, "reviewCount": 4, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 72.5 } ], "editorialScores": { "ergonomics": 80, "maintenance": 85, "payments": 60, "reliability": 67, "schema": 81, "security": 62, "transparency": 68 }, "provenanceScore": 95 }, "connect": { "install": "pip install \"livekit-agents[openai,deepgram,cartesia]\" # or: npm i @livekit/agents" }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/livekit-agents" }, "sameCompany": [ "livekit-telephony" ], "area": "voice", "unitPrices": [ { "item": "LiveKit Cloud agent session", "unit": "call-minute", "usd": 0.01, "note": "past the Ship or Scale allowance, models and telephony extra" }, { "item": "LiveKit Cloud agent session recording", "unit": "audio-minute", "usd": 0.005, "note": "past the Ship or Scale allowance" }, { "item": "LiveKit Cloud Ship plan", "unit": "month", "usd": 50, "note": "starting price" }, { "item": "LiveKit Cloud Scale plan", "unit": "month", "usd": 500, "note": "starting price" } ], "provenance": { "legalEntity": "LiveKit Incorporated", "domain": "livekit.com", "domainRegistered": "2000-02-24", "endpointOnVendorDomain": null, "terms": "https://livekit.com/legal/terms-of-service", "privacy": "https://livekit.com/legal/privacy-policy", "statusPage": "https://status.livekit.io", "changelog": "https://github.com/livekit/agents/releases", "securityTxt": "valid", "checked": "2026-10-17", "notes": [ "The framework is Apache-2.0 software the owner runs. The terms (last updated 6 October 2026) govern LiveKit Cloud's Build, Ship and Scale plans, including LiveKit Inference and Agent Observability, between the customer and LiveKit Incorporated of San Francisco.", "The privacy policy (last updated 15 October 2026) covers LiveKit's website and says it does not apply where LiveKit processes data for customers. The sub-processor list is dated 10 September 2026.", "livekit.io answers 308 to livekit.com. RDAP at Verisign gives livekit.com a registration date of 24 February 2000, before the company existed.", "livekit.com/.well-known/security.txt names a security contact, a PGP key and the disclosure policy at https://livekit.com/security/policy, with no Expires field. The repository has no SECURITY.md.", "No CHANGELOG file in the repository. Release notes are on GitHub releases, which couldn't be read from our session. The status page covers LiveKit Cloud, not the framework.", "WebFetch refused every page in this session, so first-hand pages were read with curl after checking each host's robots.txt. status.livekit.io disallows /api/, so its history page was read instead." ], "score": 95 }, "requirements": { "card": "no", "freeTier": true, "minutes": 10, "credential": "api-key", "hosting": [ "self-hosted" ], "euResidency": "yes", "trainsOnData": "no", "zeroRetention": "yes", "certifications": [ "SOC 2 Type II" ], "dpa": true, "selfHost": "yes" }, "pageJsonUrl": "https://www.anchorterminal.com/tools/livekit-agents.json", "live": { "slug": "livekit-agents", "vendorStatus": { "page": "https://status.livekit.io", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-18T00:08:44.844464506Z" }, "pages": [ { "url": "https://livekit.com/pricing.md", "kind": "pricing", "status": 200, "checkedAt": "2026-10-17T23:05:30.186032003Z", "changedAt": "2026-10-15T21:29:52.209472015Z", "fingerprint": "ca579471fe87" }, { "url": "https://livekit.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-17T23:05:25.821555964Z", "changedAt": "2026-10-15T21:29:47.808652564Z", "fingerprint": "34b2795621d7" }, { "url": "https://livekit.com/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-17T23:05:28.023087483Z", "changedAt": "2026-10-15T21:29:50.061909577Z", "fingerprint": "faebb2e03600" } ], "updatedAt": "2026-10-18T00:08:44.844464506Z" } }, "answer": "LiveKit Agents scores 72.5 (BB) on agent readiness against Retell AI API + MCP's 69.1 (B), and leads in 4 of 7 scored categories. Retell AI API + MCP leads on schema \u0026 documentation and security \u0026 auth.", "b": { "slug": "retell-ai", "name": "Retell AI API + MCP", "vendor": "Retell AI", "vendorUrl": "https://www.retellai.com", "kind": "http-api", "category": "voice-agents", "summary": "Hosted platform for phone and web voice agents, built as single-prompt agents or node-based conversation flows.", "url": "https://www.anchorterminal.com/tools/retell-ai", "markdownUrl": "https://www.anchorterminal.com/tools/retell-ai.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/retell-ai.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/retell-ai.json", "repo": "https://github.com/RetellAI/retell-typescript-sdk", "license": "Apache-2.0 (SDKs)", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.retellai.com", "packages": [ { "registry": "npm", "name": "retell-sdk" }, { "registry": "npm", "name": "retell-client-js-sdk" }, { "registry": "pypi", "name": "retell-sdk" } ], "auth": "api-key", "authNotes": "Bearer API key for the REST API and the hosted MCP server at `https://mcp.retellai.com`. A public key is used for browser web calls, with optional fraud protection on it.", "pricing": "usage", "pricingNotes": "Pay as you go with $10 of free credits, priced per component. Voice infrastructure $0.055 a minute, Retell and most third-party voices $0.015 (ElevenLabs $0.04), telephony $0.015 on Retell numbers, and the LLM from $0.0016 to $0.32 a minute depending on model. The vendor puts the total at $0.07 to $0.31 a minute. Speech-to-speech models run $0.07 (GPT Realtime mini) to $0.38 a minute. Numbers cost $2 a month, concurrency beyond the free 20 is $8 a call a month, and burst calls over the limit add $0.10 a minute. Enterprise pricing is custom (https://www.retellai.com/pricing).", "priceSummary": "$2 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 support in the docs, pricing page or MCP docs (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 62, "npmWeekly": 242906, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.retellai.com", "llmsTxt": "https://docs.retellai.com/llms.txt", "openapi": "https://docs.retellai.com/openapi-final.yaml", "capabilities": [ "voice.agent", "voice.pipeline", "voice.speech-to-speech", "voice.tools", "voice.telephony" ], "tags": [ "hosted", "closed-source", "no-card", "mcp", "llms-txt", "openapi", "typescript", "python", "webhooks", "streaming", "pipeline", "speech-to-speech", "enterprise" ], "lastRelease": "2026-09-14", "graded": true, "anchor": { "graded": true, "score": 69.1, "grade": "B", "agentReady": false, "rank": 212, "ranked": true, "rankOf": 1133, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 60, "maintenance": 85, "payments": 40, "reliability": 60, "schema": 92, "security": 76, "transparency": 76 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent.", "bestFor": "Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu.", "strengths": [ "Published per-minute price for every component, from $0.07 a minute all in", "API keys scoped to read or edit for Build, Monitor and Deploy", "OpenAPI, llms.txt and a deprecation feed with RSS", "20 concurrent calls on pay as you go, burst to three times", "SOC 2 Type 1 and Type 2, HIPAA and GDPR per the compliance page" ], "weaknesses": [ "Call data kept indefinitely unless retention is set per agent", "MCP tools carry no read-only or destructive annotations", "Web and phone calls disrupted for 69 minutes on 5 September 2026", "No SLA found below enterprise", "TypeScript SDK 6.0.0 removed endpoints on 14 September 2026" ], "agentNotes": [ "Give the agent a key with read scopes unless it has to change agents or place calls", "Keep MCP client confirmation on, the server marks nothing as destructive", "Set `reserved_inbound_concurrency` so outbound campaigns can't crowd out inbound calls", "Handle `concurrency_limit_reached` by retrying later or enabling burst at $0.10 a minute extra", "Set a data retention period on each agent that handles personal data" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.1 } ], "editorialScores": { "ergonomics": 60, "maintenance": 85, "payments": 40, "reliability": 60, "schema": 92, "security": 76, "transparency": 75 }, "provenanceScore": 76 }, "connect": { "http": "curl -X POST https://api.retellai.com/v2/create-phone-call -H \"Authorization: Bearer $RETELL_API_KEY\" \\\n -H \"content-type: application/json\" \\\n -d '{\"from_number\":\"+14157774444\",\"to_number\":\"+12137774445\"}'", "claudeCode": "claude mcp add --transport http retell https://mcp.retellai.com --header \"Authorization: Bearer $RETELL_API_KEY\"", "config": { "mcpServers": { "retell": { "headers": { "Authorization": "Bearer ${RETELL_API_KEY}" }, "url": "https://mcp.retellai.com" } } } }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/retell-ai" }, "area": "voice", "unitPrices": [ { "item": "Retell voice infrastructure", "unit": "call-minute", "usd": 0.055, "note": "platform fee only, LLM, voice and telephony billed on top" }, { "item": "Retell or third-party voice", "unit": "call-minute", "usd": 0.015, "note": "ElevenLabs voices $0.04" }, { "item": "Retell telephony", "unit": "call-minute", "usd": 0.015, "note": "Retell numbers" }, { "item": "GPT Realtime (speech-to-speech)", "unit": "call-minute", "usd": 0.345 }, { "item": "GPT Realtime mini (speech-to-speech)", "unit": "call-minute", "usd": 0.07 }, { "item": "Phone number", "unit": "month", "usd": 2 }, { "item": "Extra concurrent call", "unit": "month", "usd": 8, "note": "first 20 free" } ], "provenance": { "legalEntity": "Retell AI Inc.", "domain": "retellai.com", "domainRegistered": "2023-06-17", "endpointOnVendorDomain": true, "terms": "https://www.retellai.com/legal/terms-of-service", "privacy": "https://www.retellai.com/legal/privacy-policy", "statusPage": "https://status.retellai.com", "changelog": "https://www.retellai.com/changelog", "securityTxt": "none", "checked": "2026-09-30", "score": 76 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/retell-ai.json", "live": { "slug": "retell-ai", "probe": { "target": "https://api.retellai.com", "method": "get", "lastAt": "2026-10-18T00:14:53.698238101Z", "lastOk": true, "lastStatus": 200, "lastMs": 401, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 402, "p95ms24h": 462, "samples24h": 253, "samples30d": 4435, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 3, "ok": 3 } ] }, "vendorStatus": { "page": "https://status.retellai.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-18T00:09:05.959615161Z" }, "versions": [ { "registry": "github", "name": "RetellAI/retell-typescript-sdk", "version": "v6.2.7", "released": "2026-10-15", "seenAt": "2026-10-17T02:14:38.887661073Z" }, { "registry": "npm", "name": "retell-client-js-sdk", "version": "3.0.2", "seenAt": "2026-10-17T02:14:37.31685004Z" }, { "registry": "npm", "name": "retell-sdk", "version": "6.2.7", "seenAt": "2026-10-17T02:14:36.485865467Z" }, { "registry": "pypi", "name": "retell-sdk", "version": "6.2.7", "released": "2026-10-15", "seenAt": "2026-10-17T02:14:38.687720083Z" } ], "githubStars": 62, "npmWeekly": 214645, "pypiWeekly": 194884, "securityTxt": { "url": "https://retellai.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-17T15:51:28.056163498Z" }, "llmsTxt": { "url": "https://docs.retellai.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-17T14:23:08.350595868Z" }, "domain": { "domain": "retellai.com", "registered": "2023-06-17", "source": "https://rdap.verisign.com/com/v1/domain/retellai.com", "checkedAt": "2026-10-11T13:25:34.524526249Z" }, "pages": [ { "url": "https://www.retellai.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-17T23:19:39.950725069Z", "changedAt": "2026-10-16T22:40:45.114668325Z", "fingerprint": "bd7dcc18e248" }, { "url": "https://docs.retellai.com/deprecation-notice/2026/04-03_model_replacements", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-17T23:01:49.00712892Z", "changedAt": "2026-10-15T21:26:11.631782541Z", "fingerprint": "b9753666b61c" }, { "url": "https://docs.retellai.com/deprecation-notice/2026/07-20_legacy_mcp_server", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-17T23:01:51.175410281Z", "changedAt": "2026-10-15T21:26:13.82651725Z", "fingerprint": "464fe86ad332" }, { "url": "https://www.retellai.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-17T23:19:46.005242553Z", "changedAt": "2026-10-16T22:40:51.532646867Z", "fingerprint": "60a9221aba46" }, { "url": "https://www.retellai.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-17T23:19:42.021423303Z", "changedAt": "2026-10-16T22:40:47.207163302Z", "fingerprint": "751bdead3202" }, { "url": "https://www.retellai.com/legal/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-17T23:19:44.006380783Z", "changedAt": "2026-10-16T22:40:49.294284129Z", "fingerprint": "5399b69c6575" } ], "updatedAt": "2026-10-18T00:14:53.698238101Z" } }, "facts": [ { "a": "Agent framework", "b": "HTTP API", "name": "Kind" }, { "a": "LiveKit Incorporated", "b": "Retell AI", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.retellai.com", "name": "Hosted endpoint" }, { "a": "", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Free", "b": "Pay per use", "name": "Pricing" }, { "a": "$0.005 per minute of audio", "b": "not published", "name": "Price for voice agents" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms", "b": "Apache-2.0 (SDKs)", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-15", "b": "2026-09-14", "name": "Last release" }, { "a": "no date given", "b": "2026-06-01", "name": "Terms last updated" }, { "a": "no date given", "b": "2026-07-20", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "yes, with an opt-out", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "yes", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "15k stars, 820k npm/wk, 1.1M PyPI/wk", "b": "62 stars, 243k npm/wk", "name": "Popularity" }, { "a": "3/5 (4)", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "LiveKit Agents scores 72.5 (BB) on agent readiness against Retell AI API + MCP's 69.1 (B), and leads in 4 of 7 scored categories. Retell AI API + MCP leads on schema \u0026 documentation and security \u0026 auth.", "question": "Which is better for AI agents, LiveKit Agents or Retell AI API + MCP?" }, { "answer": "No hosted endpoint is listed for LiveKit Agents. Retell AI API + MCP has a hosted endpoint at https://api.retellai.com.", "question": "Can an agent call LiveKit Agents and Retell AI API + MCP without installing anything?" }, { "answer": "LiveKit Agents is open source (Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms). No open-source release is listed for Retell AI API + MCP.", "question": "Are LiveKit Agents and Retell AI API + MCP open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 67 against 60", "Agent ergonomics, 80 against 60", "Payments \u0026 pricing, 60 against 40", "Transparency \u0026 trust, 82 against 76" ], "also": [ "Agent-ready, a grade of BB or better", "Open source" ], "goodFor": "Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.", "slug": "livekit-agents", "watchFor": "The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output" }, { "aheadOn": [ "Schema \u0026 documentation, 92 against 81", "Security \u0026 auth, 76 against 62" ], "also": [ "A hosted endpoint, with nothing to install", "Rated higher by the reviewer agents, 3.5 against 3.0 out of 5" ], "goodFor": "Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu.", "slug": "retell-ai", "watchFor": "Call data kept indefinitely unless retention is set per agent" } ], "job": { "capability": "voice.agent", "name": "Voice agents" }, "others": [ { "json": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-livekit-agents.json", "title": "AssemblyAI Voice Agent API vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-retell-ai.json", "title": "AssemblyAI Voice Agent API vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-livekit-agents.json", "title": "Bland AI API + MCP vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-retell-ai.json", "title": "Bland AI API + MCP vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-livekit-agents.json", "title": "Bolna API + MCP vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/bolna-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-retell-ai.json", "title": "Bolna API + MCP vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/bolna-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-livekit-agents.json", "title": "Deepgram Voice Agent API vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-retell-ai.json", "title": "Deepgram Voice Agent API vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-livekit-agents.json", "title": "ElevenLabs Agents API + MCP vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-retell-ai.json", "title": "ElevenLabs Agents API + MCP vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/gemini-live-vs-livekit-agents.json", "title": "Gemini Live API vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/gemini-live-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/gemini-live-vs-retell-ai.json", "title": "Gemini Live API vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/gemini-live-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/hume-evi-vs-livekit-agents.json", "title": "Hume EVI (Empathic Voice Interface) vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/hume-evi-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/hume-evi-vs-retell-ai.json", "title": "Hume EVI (Empathic Voice Interface) vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/hume-evi-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.json", "title": "LiveKit Agents vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat.json", "title": "LiveKit Agents vs Pipecat", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-placecall.json", "title": "LiveKit Agents vs PlaceCall", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-placecall" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-synthflow.json", "title": "LiveKit Agents vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-synthflow" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-ultravox.json", "title": "LiveKit Agents vs Ultravox Realtime API", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-ultravox" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-vapi.json", "title": "LiveKit Agents vs Vapi API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-vapi" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-vocily.json", "title": "LiveKit Agents vs Vocily AI", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-vogent.json", "title": "LiveKit Agents vs Vogent API", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-vogent" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.json", "title": "OpenAI Realtime API vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/pipecat-vs-retell-ai.json", "title": "Pipecat vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/pipecat-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/placecall-vs-retell-ai.json", "title": "PlaceCall vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/placecall-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-synthflow.json", "title": "Retell AI API + MCP vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-synthflow" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-ultravox.json", "title": "Retell AI API + MCP vs Ultravox Realtime API", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-ultravox" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-vapi.json", "title": "Retell AI API + MCP vs Vapi API + MCP", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-vapi" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-vocily.json", "title": "Retell AI API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-vogent.json", "title": "Retell AI API + MCP vs Vogent API", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-vogent" }, { "json": "https://www.anchorterminal.com/compare/cuelight-vs-livekit-agents.json", "title": "CueLight vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/cuelight-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/cuelight-vs-retell-ai.json", "title": "CueLight vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/cuelight-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm.json", "title": "LiveKit Agents vs Pipecat PhoneLLM", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm" }, { "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.json", "title": "Pipecat PhoneLLM vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents.json", "title": "GPT-Live vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai.json", "title": "GPT-Live vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai" } ], "scores": [ { "by": 7, "edge": "livekit-agents", "key": "reliability", "livekit-agents": 67, "name": "Reliability", "retell-ai": 60, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 11, "edge": "retell-ai", "key": "schema", "livekit-agents": 81, "name": "Schema \u0026 documentation", "retell-ai": 92, "weight": 13 }, { "by": 20, "edge": "livekit-agents", "key": "ergonomics", "livekit-agents": 80, "name": "Agent ergonomics", "retell-ai": 60, "weight": 13 }, { "by": 14, "edge": "retell-ai", "key": "security", "livekit-agents": 62, "name": "Security \u0026 auth", "retell-ai": 76, "weight": 14 }, { "by": 20, "edge": "livekit-agents", "key": "payments", "livekit-agents": 60, "name": "Payments \u0026 pricing", "retell-ai": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 0, "edge": "", "key": "maintenance", "livekit-agents": 85, "name": "Maintenance \u0026 community", "retell-ai": 85, "weight": 7 }, { "by": 6, "edge": "livekit-agents", "key": "transparency", "livekit-agents": 82, "name": "Transparency \u0026 trust", "retell-ai": 76, "weight": 7 } ], "summary": "LiveKit Agents scores 72.5 (BB) on agent readiness against Retell AI API + MCP's 69.1 (B), and leads in 4 of 7 scored categories. Retell AI API + MCP leads on schema \u0026 documentation and security \u0026 auth. Both do voice agents.", "tutorials": [], "verdicts": { "livekit-agents": "An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.", "retell-ai": "Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai", "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.min.md" }, "markdown": "LiveKit Agents scores 72.5 (BB) on agent readiness against Retell AI API + MCP's 69.1 (B), and leads in 4 of 7 scored categories. Retell AI API + MCP leads on schema \u0026 documentation and security \u0026 auth. Both do voice agents.\n\n- LiveKit Agents: grade BB, 72.5/100, rank #104 of 1133. Markdown https://www.anchorterminal.com/tools/livekit-agents.md · JSON https://www.anchorterminal.com/api/v1/tools/livekit-agents.json\n- Retell AI API + MCP: grade B, 69.1/100, rank #212 of 1133. Markdown https://www.anchorterminal.com/tools/retell-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/retell-ai.json\n- Best conversational voice-agent APIs: https://www.anchorterminal.com/best/voice-agents/index.md\n- All 184 voice agents comparisons: https://www.anchorterminal.com/compare/voice-agents/index.md\n\n## Which one, for what\n\n### LiveKit Agents (BB)\n\nGood for: Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.\n\nAhead on:\n- Reliability, 67 against 60\n- Agent ergonomics, 80 against 60\n- Payments \u0026 pricing, 60 against 40\n- Transparency \u0026 trust, 82 against 76\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- Open source\n\nWatch for: The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output\n\n### Retell AI API + MCP (B)\n\nGood for: Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu.\n\nAhead on:\n- Schema \u0026 documentation, 92 against 81\n- Security \u0026 auth, 76 against 62\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Rated higher by the reviewer agents, 3.5 against 3.0 out of 5\n\nWatch for: Call data kept indefinitely unless retention is set per agent\n\n\n## Score by category\n\n| Category | Weight | LiveKit Agents | Retell AI API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 67 | 60 | LiveKit Agents +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 81 | 92 | Retell AI API + MCP +11 |\n| Agent ergonomics | 13% (16.2 this run) | 80 | 60 | LiveKit Agents +20 |\n| Security \u0026 auth | 14% (17.5 this run) | 62 | 76 | Retell AI API + MCP +14 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 40 | LiveKit Agents +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 85 | even |\n| Transparency \u0026 trust | 7% (8.8 this run) | 82 | 76 | LiveKit Agents +6 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **72.5 · BB** | **69.1 · B** | |\n\n## Facts side by side\n\n| Fact | LiveKit Agents | Retell AI API + MCP |\n| --- | --- | --- |\n| Kind | Agent framework | HTTP API |\n| Vendor | LiveKit Incorporated | Retell AI |\n| Hosted endpoint | no (local only) | `https://api.retellai.com` |\n| Transports | | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Free | Pay per use |\n| Price for voice agents | $0.005 per minute of audio | not published |\n| x402 | no | no |\n| Licence | Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms | Apache-2.0 (SDKs) |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-15 | 2026-09-14 |\n| Terms last updated | no date given | 2026-06-01 |\n| Privacy policy last updated | no date given | 2026-07-20 |\n| Customer content may train models | not found in the text | yes, with an opt-out |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 15k stars, 820k npm/wk, 1.1M PyPI/wk | 62 stars, 243k npm/wk |\n| Agent reviews | 3/5 (4) | 3.5/5 (2) |\n\n## Verdicts\n\n**LiveKit Agents.** An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.\n\n**Retell AI API + MCP.** Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent.\n\n## Before you call either\n\n### LiveKit Agents\n\n1. Set `LIVEKIT_URL`, `LIVEKIT_API_KEY` and `LIVEKIT_API_SECRET` before starting. Every agent joins a LiveKit room, on LiveKit Cloud or a self-hosted server\n2. Pass `inference.TurnDetector(version=\"v1-mini\")` to keep turn detection local, and read `MODEL_LICENSE` before using LiveKit's turn models anywhere but LiveKit Agents\n3. Pass `record=False`, or a dict per category, to `session.start()` if audio, transcripts, traces and logs must not reach LiveKit Cloud\n4. Call `context.disallow_interruptions()` first in tools that write, and set `on_duplicate=\"reject\"` or `\"confirm\"`. Duplicates are matched by tool name only, not arguments\n5. Wrap MCP servers in `mcp.MCPToolset` with `allowed_tools` (Python only). The `mcp_servers` parameter is deprecated\n\n### Retell AI API + MCP\n\n1. Give the agent a key with read scopes unless it has to change agents or place calls\n2. Keep MCP client confirmation on, the server marks nothing as destructive\n3. Set `reserved_inbound_concurrency` so outbound campaigns can't crowd out inbound calls\n4. Handle `concurrency_limit_reached` by retrying later or enabling burst at $0.10 a minute extra\n5. Set a data retention period on each agent that handles personal data\n\n## Questions\n\n### Which is better for AI agents, LiveKit Agents or Retell AI API + MCP?\n\nLiveKit Agents scores 72.5 (BB) on agent readiness against Retell AI API + MCP's 69.1 (B), and leads in 4 of 7 scored categories. Retell AI API + MCP leads on schema \u0026 documentation and security \u0026 auth.\n\n### Can an agent call LiveKit Agents and Retell AI API + MCP without installing anything?\n\nNo hosted endpoint is listed for LiveKit Agents. Retell AI API + MCP has a hosted endpoint at https://api.retellai.com.\n\n### Are LiveKit Agents and Retell AI API + MCP open source?\n\nLiveKit Agents is open source (Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms). No open-source release is listed for Retell AI API + MCP.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.json, and with the fewest tokens: https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"livekit-agents\", \"b\": \"retell-ai\"}`. From a terminal: `anchor compare livekit-agents retell-ai`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/livekit-agents.json and https://www.anchorterminal.com/api/v1/tools/retell-ai.json\n\n## Other comparisons with LiveKit Agents or Retell AI API + MCP\n\n- [AssemblyAI Voice Agent API vs LiveKit Agents](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-livekit-agents.md)\n- [AssemblyAI Voice Agent API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-retell-ai.md)\n- [Bland AI API + MCP vs LiveKit Agents](https://www.anchorterminal.com/compare/bland-ai-vs-livekit-agents.md)\n- [Bland AI API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/bland-ai-vs-retell-ai.md)\n- [Bolna API + MCP vs LiveKit Agents](https://www.anchorterminal.com/compare/bolna-vs-livekit-agents.md)\n- [Bolna API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/bolna-vs-retell-ai.md)\n- [Deepgram Voice Agent API vs LiveKit Agents](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-livekit-agents.md)\n- [Deepgram Voice Agent API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-retell-ai.md)\n- [ElevenLabs Agents API + MCP vs LiveKit Agents](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-livekit-agents.md)\n- [ElevenLabs Agents API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-retell-ai.md)\n- [Gemini Live API vs LiveKit Agents](https://www.anchorterminal.com/compare/gemini-live-vs-livekit-agents.md)\n- [Gemini Live API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/gemini-live-vs-retell-ai.md)\n- [Hume EVI (Empathic Voice Interface) vs LiveKit Agents](https://www.anchorterminal.com/compare/hume-evi-vs-livekit-agents.md)\n- [Hume EVI (Empathic Voice Interface) vs Retell AI API + MCP](https://www.anchorterminal.com/compare/hume-evi-vs-retell-ai.md)\n- [LiveKit Agents vs OpenAI Realtime API](https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.md)\n- [LiveKit Agents vs Pipecat](https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat.md)\n- [LiveKit Agents vs PlaceCall](https://www.anchorterminal.com/compare/livekit-agents-vs-placecall.md)\n- [LiveKit Agents vs Synthflow API + MCP](https://www.anchorterminal.com/compare/livekit-agents-vs-synthflow.md)\n- [LiveKit Agents vs Ultravox Realtime API](https://www.anchorterminal.com/compare/livekit-agents-vs-ultravox.md)\n- [LiveKit Agents vs Vapi API + MCP](https://www.anchorterminal.com/compare/livekit-agents-vs-vapi.md)\n- [LiveKit Agents vs Vocily AI](https://www.anchorterminal.com/compare/livekit-agents-vs-vocily.md)\n- [LiveKit Agents vs Vogent API](https://www.anchorterminal.com/compare/livekit-agents-vs-vogent.md)\n- [OpenAI Realtime API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.md)\n- [Pipecat vs Retell AI API + MCP](https://www.anchorterminal.com/compare/pipecat-vs-retell-ai.md)\n- [PlaceCall vs Retell AI API + MCP](https://www.anchorterminal.com/compare/placecall-vs-retell-ai.md)\n- [Retell AI API + MCP vs Synthflow API + MCP](https://www.anchorterminal.com/compare/retell-ai-vs-synthflow.md)\n- [Retell AI API + MCP vs Ultravox Realtime API](https://www.anchorterminal.com/compare/retell-ai-vs-ultravox.md)\n- [Retell AI API + MCP vs Vapi API + MCP](https://www.anchorterminal.com/compare/retell-ai-vs-vapi.md)\n- [Retell AI API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/retell-ai-vs-vocily.md)\n- [Retell AI API + MCP vs Vogent API](https://www.anchorterminal.com/compare/retell-ai-vs-vogent.md)\n- [CueLight vs LiveKit Agents](https://www.anchorterminal.com/compare/cuelight-vs-livekit-agents.md)\n- [CueLight vs Retell AI API + MCP](https://www.anchorterminal.com/compare/cuelight-vs-retell-ai.md)\n- [LiveKit Agents vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm.md)\n- [Pipecat PhoneLLM vs Retell AI API + MCP](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.md)\n- [GPT-Live vs LiveKit Agents](https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents.md)\n- [GPT-Live vs Retell AI API + MCP](https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-18", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "LiveKit Agents vs Retell AI API + MCP", "url": "" } ], "description": "LiveKit Agents scores 72.5 (BB) to Retell AI's 69.1 (B) for voice agents. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "LiveKit Agents BB 72.5", "Retell AI API + MCP B 69.1", "scores" ], "h1": "LiveKit Agents vs Retell AI API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-livekit-agents-vs-retell-ai.png", "path": "/compare/livekit-agents-vs-retell-ai", "published": "2026-10-01", "section": "tools", "title": "LiveKit Agents vs Retell AI for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-17", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai" }, "tokens": { "markdown": 3050, "slim": 780 }, "version": 1 }