{ "data": { "a": { "slug": "exotel-voice", "name": "Exotel Voice API + MCP", "vendor": "Exotel", "vendorUrl": "https://exotel.com", "kind": "http-api", "category": "voice-calling", "summary": "Indian cloud telephony API for click-to-call, call flows, virtual numbers (ExoPhones), SIP trunking and AgentStream, which streams call audio to your bot over WebSocket in both directions.", "url": "https://www.anchorterminal.com/tools/exotel-voice", "markdownUrl": "https://www.anchorterminal.com/tools/exotel-voice.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/exotel-voice.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/exotel-voice.json", "repo": "https://github.com/exotel/ExotelMCP", "license": "MIT", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.exotel.com/v1", "packages": [], "auth": "api-key", "authNotes": "HTTP Basic auth with API key and token, and the Account SID in the path. India-hosted accounts use api.in.exotel.com. The hosted MCP takes a JSON object with the base64 key and token in the Authorization header.", "pricing": "usage", "pricingNotes": "Pay as you go or bundled plans in INR, with a free trial and no card. Per-minute rates and plan prices aren't published on the Exotel site, they're quoted after signup or by sales. Numbers carry a one-time activation fee plus monthly rental (https://exotel.com/pricing/).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 or stablecoin payment path in the voice docs, pricing or llms.txt (checked 2026-09-30).", "endpoints": [] }, "toolCount": 62, "popularity": { "githubStars": 5, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developer.exotel.com/docs/voice", "capabilities": [ "voice.calls", "voice.numbers", "voice.streaming", "voice.sip", "voice.recording", "voice.transfer" ], "tags": [ "hosted", "no-card", "mcp", "webhooks", "streaming" ], "graded": true, "anchor": { "graded": true, "score": 39.4, "grade": "E", "agentReady": false, "rank": 809, "ranked": true, "rankOf": 842, "categoryRank": 12, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 40, "maintenance": 5, "payments": 20, "reliability": 50, "schema": 48, "security": 40, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Local Indian numbers and DLT and TRAI handling. Per-minute rates and plan prices not published.", "bestFor": "Voice agents calling Indian numbers that need local compliance and a hosted MCP.", "strengths": [ "Local Indian numbers and DLT and TRAI handling", "Hosted MCP with 62 tools that can place calls and manage VoiceBots", "AgentStream bidirectional audio with mark and clear events for barge-in", "No-card trial", "Error code dictionary and multi-language examples since February 2026" ], "weaknesses": [ "Per-minute rates and plan prices not published", "No OpenAPI spec, llms.txt or official server SDK", "Changelog quiet since February 2026", "MCP tools carry no read-only or destructive annotations, and credentials travel as a JSON blob in a header", "No published rate limits or SLA, and no bug bounty or disclosure policy found" ], "agentNotes": [ "Use api.in.exotel.com for India-hosted accounts and api.exotel.com for Singapore-hosted ones", "Pass StreamUrl on Calls/connect for a quick outbound voice-agent call", "Whitelist test numbers before calling on a trial account", "Pass confirm=true only after a person approves a destructive MCP tool call" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 39.4 } ], "editorialScores": { "ergonomics": 40, "maintenance": 5, "payments": 20, "reliability": 50, "schema": 48, "security": 40, "transparency": 35 }, "provenanceScore": 83 }, "connect": { "http": "curl -u \"$EXOTEL_API_KEY:$EXOTEL_API_TOKEN\" -X POST \"https://api.exotel.com/v1/Accounts/$EXOTEL_SID/Calls/connect\" \\\n -d From=+91XXXXXXXXXX -d To=+91XXXXXXXXXX -d CallerId=$EXOTEL_EXOPHONE", "claudeCode": "claude mcp add --transport http exotel https://mcp.exotel.com/mcp --header \"Authorization: $EXOTEL_MCP_AUTH_JSON\"", "config": { "mcpServers": { "exotel": { "headers": { "Authorization": "${EXOTEL_MCP_AUTH_JSON}" }, "type": "http", "url": "https://mcp.exotel.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/voice.calls", "tool": "https://letme.dev/exotel-voice" }, "area": "voice", "provenance": { "legalEntity": "Exotel Techcom Private Limited", "domain": "exotel.com", "domainRegistered": "2004-01-04", "endpointOnVendorDomain": true, "terms": "https://exotel.com/terms-of-service-exotel/", "privacy": "https://exotel.com/privacy-policy/", "statusPage": "https://status.exotel.com", "changelog": "https://developer.exotel.com/docs/references/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "Legal entity from the terms of service. The developer changelog's latest entry is February 2026." ], "score": 83 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/exotel-voice.json", "live": { "slug": "exotel-voice", "probe": { "target": "https://api.exotel.com/v1", "method": "get", "lastAt": "2026-10-09T10:42:42.793006759Z", "lastOk": true, "lastStatus": 400, "lastMs": 709, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 725, "p95ms24h": 790, "samples24h": 260, "samples30d": 2300, "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": 114, "ok": 114 } ] }, "vendorStatus": { "page": "https://status.exotel.com", "indicator": "major", "summary": "Partial System Outage", "checkedAt": "2026-10-09T10:41:38.353541034Z" }, "githubStars": 5, "securityTxt": { "url": "https://exotel.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:42.549254552Z" }, "llmsTxt": { "url": "https://developer.exotel.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-01T13:02:56.207120986Z" }, "domain": { "domain": "exotel.com", "registered": "2004-01-04", "source": "https://rdap.verisign.com/com/v1/domain/exotel.com", "checkedAt": "2026-10-04T13:08:47.298921523Z" }, "pages": [ { "url": "https://developer.exotel.com/docs/references/changelog", "kind": "changelog", "status": 404, "checkedAt": "2026-10-08T18:17:13.075145237Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c48075a649c5" }, { "url": "https://exotel.com/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:20:14.126827587Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c189da9b16a1" }, { "url": "https://exotel.com/privacy-policy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:20:16.723086437Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3fa8ae110c4a" }, { "url": "https://exotel.com/terms-of-service-exotel/", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:20:18.351924009Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "1ee897578d5d" } ], "updatedAt": "2026-10-09T10:42:42.793006759Z" } }, "answer": "LiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category.", "b": { "slug": "livekit-telephony", "name": "LiveKit Telephony", "vendor": "LiveKit Incorporated", "vendorUrl": "https://livekit.com", "kind": "http-api", "category": "voice-calling", "summary": "LiveKit Telephony connects phone calls to LiveKit rooms as SIP participants. On LiveKit Cloud it covers SIP trunks to outside carriers, US inbound phone numbers, dispatch rules and transfers, managed through a Twirp API, server SDKs and the `lk` CLI.", "url": "https://www.anchorterminal.com/tools/livekit-telephony", "markdownUrl": "https://www.anchorterminal.com/tools/livekit-telephony.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/livekit-telephony.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/livekit-telephony.json", "repo": "https://github.com/livekit/sip", "license": "Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0", "transports": [ "http" ], "packages": [ { "registry": "npm", "name": "livekit-server-sdk" }, { "registry": "pypi", "name": "livekit-api" }, { "registry": "go", "name": "github.com/livekit/server-sdk-go/v2" } ], "auth": "api-key", "authNotes": "A project API key and secret, created in the LiveKit Cloud dashboard, sign a JWT sent as `Authorization: Bearer \u003ctoken\u003e`. The token's `sip` grant carries `admin` (trunks, dispatch rules, phone numbers) or `call` (`CreateSIPParticipant` and `TransferSIPParticipant`), and its lifetime is set by whoever signs it. Keys can be rotated in the dashboard and the secret is shown once. Access is self-serve after a browser sign-up. The CLI links a project with `lk cloud auth`, which opens a browser.", "pricing": "freemium", "pricingNotes": "Free Build plan with no card. It includes 1 US local number, 50 US local inbound minutes and 1,000 third-party SIP minutes a month as a hard cap. Ship starts at $50 a month and Scale at $500, with third-party SIP minutes at $0.004 and $0.003 past the allowance, US local inbound at $0.01 a minute, toll-free inbound at $0.02, local numbers $1 a month and toll-free $2. A third-party carrier bills its own trunk and number charges. A number released mid-month is billed for the full month. Enterprise is priced by sales (https://livekit.com/pricing.md, checked 2026-10-08).", "priceSummary": "$1 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the telephony docs, the SIP and Phone Numbers API references or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 480, "npmWeekly": 2938925, "pypiWeekly": 1673299, "asOf": "2026-10-08" }, "docsUrl": "https://docs.livekit.io/telephony/", "llmsTxt": "https://docs.livekit.io/telephony/llms.txt", "capabilities": [ "voice.calls", "voice.sip", "voice.numbers", "voice.transfer", "voice.streaming" ], "tags": [ "hosted", "sip", "open-source", "llms-txt", "cli", "typescript", "python", "go", "webhooks", "free-tier", "status-page", "soc2" ], "lastRelease": "2026-10-08", "graded": true, "anchor": { "graded": true, "score": 67.5, "grade": "B", "agentReady": false, "rank": 234, "ranked": true, "rankOf": 842, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 90, "payments": 40, "reliability": 65, "schema": 84, "security": 61, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Signed tokens separate the right to dial (`sip.call`) from the right to manage trunks (`sip.admin`), and per-minute prices are public with a free plan that needs no card. LiveKit's own phone numbers are US only and inbound only, so outbound calls need a third-party SIP trunk, and no 429 or retry guidance was found.", "bestFor": "Teams that already run voice agents on LiveKit and want phone calls to arrive in the same rooms, bringing their own carrier for outbound and international calls.", "strengths": [ "Token grants separate `sip.call` (dial and transfer) from `sip.admin` (trunks, dispatch rules, numbers), with a lifetime the issuer sets", "Free Build plan with no card has one US local number, 50 inbound minutes and 1,000 third-party SIP minutes a month", "Per-minute and per-number prices are public, also as Markdown at livekit.com/pricing.md", "The SIP service is open source under Apache 2.0, with 12 tagged releases from 10 July to 5 October 2026", "Status page lists SIP per region and US Phone Numbers as separate components" ], "weaknesses": [ "LiveKit Phone Numbers are US only and inbound only, and `TransferSIPParticipant` does not work on them yet", "Outbound calls need a trunk from another carrier, billed by that carrier on top of LiveKit's SIP minutes", "No 429, Retry-After or idempotency guidance was found for the SIP API, so a retried `CreateSIPParticipant` may dial twice", "The 99.99% uptime on the pricing page is an objective only, with no credits outside a written Enterprise agreement", "Sign-up and `lk cloud auth` need a person in a browser, and no machine payment protocol was found", "The terms bar benchmarking for competitive purposes without written consent" ], "agentNotes": [ "Ask the operator for a short-lived token with only the `sip.call` grant to dial or transfer. Trunk, dispatch rule and number changes need `sip.admin`", "Use a third-party outbound trunk for outbound calls. LiveKit Phone Numbers only receive calls", "Set `wait_until_answered` on `CreateSIPParticipant` and read the SIP status on `SipCallError` before retrying. Voicemail answers with 200 OK", "Send every request as a JSON POST to `/twirp/livekit.SIP/\u003cMethod\u003e` or `/twirp/livekit.PhoneNumberService/\u003cMethod\u003e` on the project's own host, with `{}` for an empty body", "A released number is billed for the whole month, and the free Build allowance is a hard cap after which requests fail" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.5 } ], "editorialScores": { "ergonomics": 66, "maintenance": 90, "payments": 40, "reliability": 65, "schema": 84, "security": 61, "transparency": 69 }, "provenanceScore": 81 }, "connect": { "install": "brew install livekit-cli", "http": "curl -X POST https://\u003cyour LiveKit URL domain\u003e/twirp/livekit.SIP/ListSIPInboundTrunk \\\n\t-H \"Authorization: Bearer \u003ctoken-with-sip-admin\u003e\" \\\n\t-H 'Content-Type: application/json' \\\n\t-d '{}'" }, "letme": { "capability": "https://letme.dev/voice.calls", "tool": "https://letme.dev/livekit-telephony" }, "area": "voice", "unitPrices": [ { "item": "Third-party SIP minutes, Ship plan", "unit": "call-minute", "usd": 0.004, "note": "past 5,000 included minutes, carrier charges extra" }, { "item": "Third-party SIP minutes, Scale plan", "unit": "call-minute", "usd": 0.003, "note": "past 50,000 included minutes, carrier charges extra" }, { "item": "US local inbound minutes", "unit": "call-minute", "usd": 0.01, "note": "LiveKit Phone Numbers, past 100 (Ship) or 1,000 (Scale) included minutes" }, { "item": "US toll-free inbound minutes", "unit": "call-minute", "usd": 0.02, "note": "Ship and Scale only" }, { "item": "US local number", "unit": "month", "usd": 1, "note": "first number free on every plan" }, { "item": "US toll-free number", "unit": "month", "usd": 2, "note": "Ship and Scale only" }, { "item": "Ship plan", "unit": "month", "usd": 50, "note": "starting price" }, { "item": "Scale plan", "unit": "month", "usd": 500, "note": "starting price" } ], "provenance": { "legalEntity": "LiveKit Incorporated", "domain": "livekit.com", "domainRegistered": "2000-02-24", "endpointOnVendorDomain": false, "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/sip/releases", "securityTxt": "valid", "checked": "2026-10-08", "notes": [ "livekit.io answers 308 to livekit.com. Docs stay at docs.livekit.io, the dashboard at cloud.livekit.io and the status page at status.livekit.io.", "The terms link is the Terms of Service Agreement for the Build, Ship and Scale plans of LiveKit Cloud, last updated 6 October 2026, between the customer and LiveKit Incorporated of San Francisco. Enterprise customers sign a separate agreement we did not see.", "The privacy policy was last updated 6 October 2026. A Data Processing Addendum of the same date is at https://livekit.com/legal/data-processing-addendum and the sub-processor list (10 September 2026) at https://livekit.com/legal/sub-processors.", "Each project's API answers on its own host under livekit.cloud and SIP at \u003csubdomain\u003e.sip.livekit.cloud, a second domain. LiveKit's disclosure policy lists *.livekit.cloud among its own systems.", "livekit.com/.well-known/security.txt gives security@livekit.io, a PGP key and the policy at https://livekit.com/security/policy. It has no Expires field. livekit.com/security.txt returns 404.", "No changelog page for LiveKit Cloud was found (livekit.com/changelog returns 404). Dated changes are in the livekit/sip release tags and `CHANGELOG.md` in livekit/protocol.", "RDAP for livekit.com gives a registration date of 2000-02-24, long before the company existed. RDAP for livekit.io returned no events.", "livekit/sip tagged v1.18.0 on 5 October 2026 and livekit-cli tagged v2.19.0 on 8 October 2026." ], "score": 81 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/livekit-telephony.json", "live": { "slug": "livekit-telephony", "vendorStatus": { "page": "https://status.livekit.io", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-09T10:41:47.741400325Z" }, "updatedAt": "2026-10-09T10:41:47.741400325Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Exotel", "b": "LiveKit Incorporated", "name": "Vendor" }, { "a": "https://api.exotel.com/v1", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0", "name": "Licence" }, { "a": "62", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "none", "b": "2026-10-08", "name": "Last release" }, { "a": "no date given", "b": "no date given", "name": "Terms last updated" }, { "a": "no date given", "b": "no date given", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "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": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "5 stars", "b": "480 stars, 2.9M npm/wk, 1.7M PyPI/wk", "name": "Popularity" }, { "a": "2/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "LiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category.", "question": "Which is better for AI agents, Exotel Voice API + MCP or LiveKit Telephony?" }, { "answer": "Both need an API key.", "question": "Do Exotel Voice API + MCP and LiveKit Telephony need an API key?" }, { "answer": "Exotel Voice API + MCP has a hosted endpoint at https://api.exotel.com/v1. No hosted endpoint is listed for LiveKit Telephony.", "question": "Can an agent call Exotel Voice API + MCP and LiveKit Telephony without installing anything?" }, { "answer": "No open-source release is listed for Exotel Voice API + MCP. LiveKit Telephony is open source (Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0).", "question": "Are Exotel Voice API + MCP and LiveKit Telephony open source?" } ], "goodFor": [ { "aheadOn": null, "also": [ "A hosted endpoint, with nothing to install", "Free to start without a card" ], "goodFor": "Voice agents calling Indian numbers that need local compliance and a hosted MCP.", "slug": "exotel-voice", "watchFor": "Per-minute rates and plan prices not published" }, { "aheadOn": [ "Reliability, 65 against 50", "Schema \u0026 documentation, 84 against 48", "Agent ergonomics, 66 against 40", "Security \u0026 auth, 61 against 40", "Payments \u0026 pricing, 40 against 20", "Maintenance \u0026 community, 90 against 5", "Transparency \u0026 trust, 75 against 59" ], "also": [ "Open source" ], "goodFor": "Teams that already run voice agents on LiveKit and want phone calls to arrive in the same rooms, bringing their own carrier for outbound and international calls.", "slug": "livekit-telephony", "watchFor": "LiveKit Phone Numbers are US only and inbound only, and `TransferSIPParticipant` does not work on them yet" } ], "job": { "capability": "voice.calls", "name": "Voice calls" }, "others": [ { "json": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-exotel-voice.json", "title": "Bandwidth Voice API + MCP vs Exotel Voice API + MCP", "url": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-exotel-voice" }, { "json": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-livekit-telephony.json", "title": "Bandwidth Voice API + MCP vs LiveKit Telephony", "url": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-livekit-telephony" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-infobip-calls.json", "title": "Exotel Voice API + MCP vs Infobip Calls API + MCP", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-infobip-calls" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-jambonz.json", "title": "Exotel Voice API + MCP vs jambonz", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-jambonz" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-plivo-voice.json", "title": "Exotel Voice API + MCP vs Plivo Voice API", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-plivo-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-signalwire-voice.json", "title": "Exotel Voice API + MCP vs SignalWire Voice API", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-signalwire-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice.json", "title": "Exotel Voice API + MCP vs Sinch Voice API + MCP", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-telnyx-voice.json", "title": "Exotel Voice API + MCP vs Telnyx Voice API + MCP", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-telnyx-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-twilio-voice.json", "title": "Exotel Voice API + MCP vs Twilio Programmable Voice API + MCP", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-twilio-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-vonage-voice.json", "title": "Exotel Voice API + MCP vs Vonage Voice API + MCP", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-vonage-voice" }, { "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-voximplant.json", "title": "Exotel Voice API + MCP vs Voximplant", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-voximplant" }, { "json": "https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.json", "title": "Infobip Calls API + MCP vs LiveKit Telephony", "url": "https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony" }, { "json": "https://www.anchorterminal.com/compare/jambonz-vs-livekit-telephony.json", "title": "jambonz vs LiveKit Telephony", "url": "https://www.anchorterminal.com/compare/jambonz-vs-livekit-telephony" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-plivo-voice.json", "title": "LiveKit Telephony vs Plivo Voice API", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-plivo-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-signalwire-voice.json", "title": "LiveKit Telephony vs SignalWire Voice API", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-signalwire-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-sinch-voice.json", "title": "LiveKit Telephony vs Sinch Voice API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-sinch-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-telnyx-voice.json", "title": "LiveKit Telephony vs Telnyx Voice API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-telnyx-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-twilio-voice.json", "title": "LiveKit Telephony vs Twilio Programmable Voice API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-twilio-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-vonage-voice.json", "title": "LiveKit Telephony vs Vonage Voice API + MCP", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-vonage-voice" }, { "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-voximplant.json", "title": "LiveKit Telephony vs Voximplant", "url": "https://www.anchorterminal.com/compare/livekit-telephony-vs-voximplant" } ], "scores": [ { "by": 15, "edge": "livekit-telephony", "exotel-voice": 50, "key": "reliability", "livekit-telephony": 65, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 36, "edge": "livekit-telephony", "exotel-voice": 48, "key": "schema", "livekit-telephony": 84, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 26, "edge": "livekit-telephony", "exotel-voice": 40, "key": "ergonomics", "livekit-telephony": 66, "name": "Agent ergonomics", "weight": 13 }, { "by": 21, "edge": "livekit-telephony", "exotel-voice": 40, "key": "security", "livekit-telephony": 61, "name": "Security \u0026 auth", "weight": 14 }, { "by": 20, "edge": "livekit-telephony", "exotel-voice": 20, "key": "payments", "livekit-telephony": 40, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 85, "edge": "livekit-telephony", "exotel-voice": 5, "key": "maintenance", "livekit-telephony": 90, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 16, "edge": "livekit-telephony", "exotel-voice": 59, "key": "transparency", "livekit-telephony": 75, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "LiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category. Both do voice calls.", "verdicts": { "exotel-voice": "Local Indian numbers and DLT and TRAI handling. Per-minute rates and plan prices not published.", "livekit-telephony": "Signed tokens separate the right to dial (`sip.call`) from the right to manage trunks (`sip.admin`), and per-minute prices are public with a free plan that needs no card. LiveKit's own phone numbers are US only and inbound only, so outbound calls need a third-party SIP trunk, and no 429 or retry guidance was found." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony", "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony.md", "slim": "https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony.min.md" }, "markdown": "LiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category. Both do voice calls.\n\n- Exotel Voice API + MCP: grade E, 39.4/100, rank #809 of 842. Markdown https://www.anchorterminal.com/tools/exotel-voice.md · JSON https://www.anchorterminal.com/api/v1/tools/exotel-voice.json\n- LiveKit Telephony: grade B, 67.5/100, rank #234 of 842. Markdown https://www.anchorterminal.com/tools/livekit-telephony.md · JSON https://www.anchorterminal.com/api/v1/tools/livekit-telephony.json\n\n## Which one, for what\n\n### Exotel Voice API + MCP (E)\n\nGood for: Voice agents calling Indian numbers that need local compliance and a hosted MCP.\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Free to start without a card\n\nWatch for: Per-minute rates and plan prices not published\n\n### LiveKit Telephony (B)\n\nGood for: Teams that already run voice agents on LiveKit and want phone calls to arrive in the same rooms, bringing their own carrier for outbound and international calls.\n\nAhead on:\n- Reliability, 65 against 50\n- Schema \u0026 documentation, 84 against 48\n- Agent ergonomics, 66 against 40\n- Security \u0026 auth, 61 against 40\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 90 against 5\n- Transparency \u0026 trust, 75 against 59\n\nAlso in its favour:\n- Open source\n\nWatch for: LiveKit Phone Numbers are US only and inbound only, and `TransferSIPParticipant` does not work on them yet\n\n\n## Score by category\n\n| Category | Weight | Exotel Voice API + MCP | LiveKit Telephony | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 65 | LiveKit Telephony +15 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 84 | LiveKit Telephony +36 |\n| Agent ergonomics | 13% (16.2 this run) | 40 | 66 | LiveKit Telephony +26 |\n| Security \u0026 auth | 14% (17.5 this run) | 40 | 61 | LiveKit Telephony +21 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | LiveKit Telephony +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 5 | 90 | LiveKit Telephony +85 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 75 | LiveKit Telephony +16 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **39.4 · E** | **67.5 · B** | |\n\n## Facts side by side\n\n| Fact | Exotel Voice API + MCP | LiveKit Telephony |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Exotel | LiveKit Incorporated |\n| Hosted endpoint | `https://api.exotel.com/v1` | no (local only) |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | MIT | Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0 |\n| Tools exposed | 62 | none |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | none | 2026-10-08 |\n| Terms last updated | no date given | no date given |\n| Privacy policy last updated | no date given | no date given |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\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 | not found in the text | yes |\n| Popularity | 5 stars | 480 stars, 2.9M npm/wk, 1.7M PyPI/wk |\n| Agent reviews | 2/5 (2) | none |\n\n## Verdicts\n\n**Exotel Voice API + MCP.** Local Indian numbers and DLT and TRAI handling. Per-minute rates and plan prices not published.\n\n**LiveKit Telephony.** Signed tokens separate the right to dial (`sip.call`) from the right to manage trunks (`sip.admin`), and per-minute prices are public with a free plan that needs no card. LiveKit's own phone numbers are US only and inbound only, so outbound calls need a third-party SIP trunk, and no 429 or retry guidance was found.\n\n## Before you call either\n\n### Exotel Voice API + MCP\n\n1. Use api.in.exotel.com for India-hosted accounts and api.exotel.com for Singapore-hosted ones\n2. Pass StreamUrl on Calls/connect for a quick outbound voice-agent call\n3. Whitelist test numbers before calling on a trial account\n4. Pass confirm=true only after a person approves a destructive MCP tool call\n\n### LiveKit Telephony\n\n1. Ask the operator for a short-lived token with only the `sip.call` grant to dial or transfer. Trunk, dispatch rule and number changes need `sip.admin`\n2. Use a third-party outbound trunk for outbound calls. LiveKit Phone Numbers only receive calls\n3. Set `wait_until_answered` on `CreateSIPParticipant` and read the SIP status on `SipCallError` before retrying. Voicemail answers with 200 OK\n4. Send every request as a JSON POST to `/twirp/livekit.SIP/\u003cMethod\u003e` or `/twirp/livekit.PhoneNumberService/\u003cMethod\u003e` on the project's own host, with `{}` for an empty body\n5. A released number is billed for the whole month, and the free Build allowance is a hard cap after which requests fail\n\n## Questions\n\n### Which is better for AI agents, Exotel Voice API + MCP or LiveKit Telephony?\n\nLiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category.\n\n### Do Exotel Voice API + MCP and LiveKit Telephony need an API key?\n\nBoth need an API key.\n\n### Can an agent call Exotel Voice API + MCP and LiveKit Telephony without installing anything?\n\nExotel Voice API + MCP has a hosted endpoint at https://api.exotel.com/v1. No hosted endpoint is listed for LiveKit Telephony.\n\n### Are Exotel Voice API + MCP and LiveKit Telephony open source?\n\nNo open-source release is listed for Exotel Voice API + MCP. LiveKit Telephony is open source (Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony.json, and with the fewest tokens: https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"exotel-voice\", \"b\": \"livekit-telephony\"}`. From a terminal: `anchor compare exotel-voice livekit-telephony`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/exotel-voice.json and https://www.anchorterminal.com/api/v1/tools/livekit-telephony.json\n\n## Other comparisons with Exotel Voice API + MCP or LiveKit Telephony\n\n- [Bandwidth Voice API + MCP vs Exotel Voice API + MCP](https://www.anchorterminal.com/compare/bandwidth-voice-vs-exotel-voice.md)\n- [Bandwidth Voice API + MCP vs LiveKit Telephony](https://www.anchorterminal.com/compare/bandwidth-voice-vs-livekit-telephony.md)\n- [Exotel Voice API + MCP vs Infobip Calls API + MCP](https://www.anchorterminal.com/compare/exotel-voice-vs-infobip-calls.md)\n- [Exotel Voice API + MCP vs jambonz](https://www.anchorterminal.com/compare/exotel-voice-vs-jambonz.md)\n- [Exotel Voice API + MCP vs Plivo Voice API](https://www.anchorterminal.com/compare/exotel-voice-vs-plivo-voice.md)\n- [Exotel Voice API + MCP vs SignalWire Voice API](https://www.anchorterminal.com/compare/exotel-voice-vs-signalwire-voice.md)\n- [Exotel Voice API + MCP vs Sinch Voice API + MCP](https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice.md)\n- [Exotel Voice API + MCP vs Telnyx Voice API + MCP](https://www.anchorterminal.com/compare/exotel-voice-vs-telnyx-voice.md)\n- [Exotel Voice API + MCP vs Twilio Programmable Voice API + MCP](https://www.anchorterminal.com/compare/exotel-voice-vs-twilio-voice.md)\n- [Exotel Voice API + MCP vs Vonage Voice API + MCP](https://www.anchorterminal.com/compare/exotel-voice-vs-vonage-voice.md)\n- [Exotel Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/exotel-voice-vs-voximplant.md)\n- [Infobip Calls API + MCP vs LiveKit Telephony](https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.md)\n- [jambonz vs LiveKit Telephony](https://www.anchorterminal.com/compare/jambonz-vs-livekit-telephony.md)\n- [LiveKit Telephony vs Plivo Voice API](https://www.anchorterminal.com/compare/livekit-telephony-vs-plivo-voice.md)\n- [LiveKit Telephony vs SignalWire Voice API](https://www.anchorterminal.com/compare/livekit-telephony-vs-signalwire-voice.md)\n- [LiveKit Telephony vs Sinch Voice API + MCP](https://www.anchorterminal.com/compare/livekit-telephony-vs-sinch-voice.md)\n- [LiveKit Telephony vs Telnyx Voice API + MCP](https://www.anchorterminal.com/compare/livekit-telephony-vs-telnyx-voice.md)\n- [LiveKit Telephony vs Twilio Programmable Voice API + MCP](https://www.anchorterminal.com/compare/livekit-telephony-vs-twilio-voice.md)\n- [LiveKit Telephony vs Vonage Voice API + MCP](https://www.anchorterminal.com/compare/livekit-telephony-vs-vonage-voice.md)\n- [LiveKit Telephony vs Voximplant](https://www.anchorterminal.com/compare/livekit-telephony-vs-voximplant.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "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" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Exotel Voice API + MCP vs LiveKit Telephony", "url": "" } ], "description": "LiveKit Telephony scores 67.5 (B) on agent readiness against Exotel Voice API + MCP's 39.4 (E), and leads in every scored category. Both do voice calls. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Exotel Voice API + MCP E 39.4", "LiveKit Telephony B 67.5", "scores" ], "h1": "Exotel Voice API + MCP vs LiveKit Telephony", "image": "https://www.anchorterminal.com/assets/og/compare-exotel-voice-vs-livekit-telephony.png", "path": "/compare/exotel-voice-vs-livekit-telephony", "published": "2026-10-01", "section": "tools", "title": "Exotel Voice API + MCP vs LiveKit Telephony for AI agents", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-livekit-telephony" }, "tokens": { "markdown": 2450, "slim": 630 }, "version": 1 }