{ "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": 39.8, "grade": "E", "agentReady": false, "rank": 424, "ranked": true, "rankOf": 452, "categoryRank": 10, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 40, "maintenance": 5, "payments": 20, "reliability": 50, "schema": 48, "security": 40, "transparency": 63 }, "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.", "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": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 39.8 } ], "editorialScores": { "ergonomics": 40, "maintenance": 5, "payments": 20, "reliability": 50, "schema": 48, "security": 40, "transparency": 35 }, "provenanceScore": 90 }, "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": 90 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/exotel-voice.json", "live": { "slug": "exotel-voice", "probe": { "target": "https://api.exotel.com/v1", "method": "get", "lastAt": "2026-10-05T00:25:42.727906943Z", "lastOk": true, "lastStatus": 400, "lastMs": 758, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 725, "p95ms24h": 781, "samples24h": 272, "samples30d": 1107, "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": 5, "ok": 5 } ] }, "vendorStatus": { "page": "https://status.exotel.com", "indicator": "major", "summary": "Partial System Outage", "checkedAt": "2026-10-05T00:22:45.594314898Z" }, "githubStars": 5, "securityTxt": { "url": "https://exotel.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:38.635394589Z" }, "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": "2026-10-04T15:42:36.379688862Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c48075a649c5" }, { "url": "https://exotel.com/pricing/", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:44:34.929433729Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c189da9b16a1" }, { "url": "https://exotel.com/privacy-policy/", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:44:37.13126856Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3fa8ae110c4a" }, { "url": "https://exotel.com/terms-of-service-exotel/", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:44:39.317095047Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "1ee897578d5d" } ], "updatedAt": "2026-10-05T00:25:42.727906943Z" } }, "b": { "slug": "sinch-voice", "name": "Sinch Voice API + MCP", "vendor": "Sinch", "vendorUrl": "https://sinch.com", "kind": "http-api", "category": "voice-calling", "summary": "Programmable voice over PSTN, SIP and WebSocket streams, driven by SVAML call-control JSON.", "url": "https://www.anchorterminal.com/tools/sinch-voice", "markdownUrl": "https://www.anchorterminal.com/tools/sinch-voice.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/sinch-voice.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/sinch-voice.json", "repo": "https://github.com/sinch/sinch-mcp-server", "license": "Apache-2.0", "transports": [ "http", "stdio", "streamable-http" ], "remoteUrl": "https://voice.api.sinch.com/v2", "packages": [ { "registry": "npm", "name": "@sinch/sdk-core" }, { "registry": "pypi", "name": "sinch" }, { "registry": "npm", "name": "@sinch/mcp" } ], "auth": "mixed", "authNotes": "Voice API v2 uses a project access key and secret, over Basic auth or as an OAuth 2.0 token. Voice API v1 at calling.api.sinch.com uses an application key and secret with Basic auth or signed requests, and Sinch recommends signed requests in production. Webhooks can be signed.", "pricing": "usage", "pricingNotes": "Prepaid pay as you go for self-created accounts, with test credits on signup. The downloadable price list gives US outbound at $0.01 a minute, billed in 60-second increments. The pricing page only shows illustrative inbound, SIP, recording and number prices (for example inbound $0.008 a minute and a number at $0.80 a month plus $0.80 setup), so check your dashboard before relying on them. TTS, conferences and IVR menus carry no extra charge (https://sinch.com/pricing/voice/).", "priceSummary": "Pay per use", "where": "both", "x402": { "level": "no", "evidence": "No x402 or stablecoin payment path in the voice docs, pricing or llms.txt (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 1, "npmWeekly": 15648, "pypiWeekly": 11166, "asOf": "2026-09-30" }, "docsUrl": "https://developers.sinch.com/docs/voice-2.0/overview", "llmsTxt": "https://developers.sinch.com/llms.txt", "openapi": "https://developers.sinch.com/_bundle/docs/voice-2.0/api-reference/voice.yaml", "capabilities": [ "voice.calls", "voice.numbers", "voice.streaming", "voice.sip", "voice.recording", "voice.transfer" ], "tags": [ "hosted", "mcp", "llms-txt", "typescript", "python", "webhooks", "streaming", "batch" ], "lastRelease": "2026-09-23", "graded": true, "anchor": { "graded": true, "score": 62.8, "grade": "B", "agentReady": false, "rank": 212, "ranked": true, "rankOf": 452, "categoryRank": 5, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 81, "maintenance": 79, "payments": 35, "reliability": 52, "schema": 79, "security": 50, "transparency": 73 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Voice API v2 with bidirectional PCM streams and a text relay that handles barge-in. Two API generations with different hosts, auth and markup, and v1 release notes stop in 2022.", "strengths": [ "Voice API v2 with bidirectional PCM streams and a text relay that handles barge-in", "Idempotency-Key on v2 call, batch and service writes, with a 10-minute replay window", "OpenAPI file for v2, and official SDKs in four languages, with v2 in Node 1.6.0 and Python 2.2.0 since September", "Signed callbacks in v1 and v2, and OAuth 2.0 tokens on v2", "Test credits and a test number on signup without a card, and ISO 27001 and SOC 2 Type II" ], "weaknesses": [ "Two API generations with different hosts, auth and markup, and v1 release notes stop in 2022", "No published voice rate limits or SLA, and 429 handling is described only in SDK changelogs", "Public pricing is a spreadsheet download plus illustrative examples", "The voice MCP is an alpha (0.0.1-alpha.6) that can't stream audio", "No security.txt or bug bounty" ], "agentNotes": [ "Start new work on Voice API v2 at voice.api.sinch.com. v1 is the older callout model", "Send an Idempotency-Key (a UUID v4) on v2 call, batch and service writes, and reuse it when you retry within 10 minutes", "Use the MCP tts-callout tool for one-off spoken notifications, and the REST API for anything that streams audio", "Trial accounts dial verified numbers only, one call at a time, so verify the test handset first", "Verify the webhook signature and deduplicate on `ce-id` and `ce-source`, since fallback delivery can repeat events" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 62.8 } ], "editorialScores": { "ergonomics": 81, "maintenance": 79, "payments": 35, "reliability": 52, "schema": 79, "security": 50, "transparency": 55 }, "provenanceScore": 90 }, "connect": { "http": "curl -X POST \"https://voice.api.sinch.com/v2/projects/$SINCH_PROJECT_ID/calls\" -u \"$SINCH_KEY_ID:$SINCH_KEY_SECRET\" \\\n -H \"Content-Type: application/json\" -d '{\"commands\":[{\"command\":\"dial\",\"callName\":\"origin\",\"from\":{\"type\":\"PHONE\",\"phone\":{\"number\":\"+15551234567\"}},\"to\":{\"type\":\"PHONE\",\"phone\":{\"number\":\"+15559876543\"}},\"events\":{\"onAnswer\":[{\"command\":\"messages\",\"messages\":[{\"type\":\"SAY\",\"say\":{\"text\":\"Hello from Sinch\"}}]}]}}]}'", "config": { "mcpServers": { "sinch": { "args": [ "-y", "@sinch/mcp" ], "command": "npx", "env": { "APPLICATION_KEY": "${SINCH_APP_KEY}", "APPLICATION_SECRET": "${SINCH_APP_SECRET}", "CALLING_LINE_IDENTIFICATION": "${SINCH_CLI_NUMBER}", "KEY_ID": "${SINCH_KEY_ID}", "KEY_SECRET": "${SINCH_KEY_SECRET}", "PROJECT_ID": "${SINCH_PROJECT_ID}" } } } } }, "letme": { "capability": "https://letme.dev/voice.calls", "tool": "https://letme.dev/sinch-voice" }, "sameCompany": [ "sinch" ], "area": "voice", "unitPrices": [ { "item": "US outbound", "unit": "call-minute", "usd": 0.01, "note": "outbound to US numbers, 60-second increments, from the downloadable price list" } ], "provenance": { "legalEntity": "Sinch AB (publ)", "domain": "sinch.com", "domainRegistered": "1997-12-03", "endpointOnVendorDomain": true, "terms": "https://sinch.com/legal/terms-and-conditions/other-sinch-terms-conditions/general-terms-and-conditions/", "privacy": "https://sinch.com/legal/privacy-notice/", "statusPage": "https://status.sinch.com", "changelog": "https://developers.sinch.com/docs/voice/release-notes", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "Provenance shared with the Sinch messaging listing. The general terms name the contracting Sinch entity only in the order form, Sinch AB (publ) is the listed parent.", "The v1 voice release notes were last updated on 2022-10-06." ], "score": 90 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/sinch-voice.json", "live": { "slug": "sinch-voice", "probe": { "target": "https://voice.api.sinch.com/v2", "method": "get", "lastAt": "2026-10-05T00:25:49.867384874Z", "lastOk": true, "lastStatus": 404, "lastMs": 50, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 57, "p95ms24h": 86, "samples24h": 272, "samples30d": 1107, "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": 5, "ok": 5 } ] }, "vendorStatus": { "page": "https://status.sinch.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-05T00:23:01.168928134Z" }, "versions": [ { "registry": "github", "name": "sinch/sinch-mcp-server", "version": "v0.0.1-alpha6", "released": "2026-04-14", "seenAt": "2026-10-04T16:40:00.043260291Z" }, { "registry": "npm", "name": "@sinch/mcp", "version": "0.0.1-alpha.6", "seenAt": "2026-10-04T16:39:58.580612919Z" }, { "registry": "npm", "name": "@sinch/sdk-core", "version": "1.6.0", "seenAt": "2026-10-04T16:39:57.580581644Z" }, { "registry": "pypi", "name": "sinch", "version": "2.2.0", "released": "2026-09-21", "seenAt": "2026-10-04T16:39:58.396958555Z" } ], "githubStars": 1, "npmWeekly": 18032, "pypiWeekly": 12911, "securityTxt": { "url": "https://sinch.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:40.047440487Z" }, "llmsTxt": { "url": "https://developers.sinch.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:13.942714727Z" }, "domain": { "domain": "sinch.com", "registered": "1997-12-03", "source": "https://rdap.verisign.com/com/v1/domain/sinch.com", "checkedAt": "2026-10-04T13:05:54.744606475Z" }, "pages": [ { "url": "https://developers.sinch.com/docs/voice/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:43:05.083802306Z", "changedAt": "2026-10-03T15:31:16.213832084Z", "fingerprint": "b3eccb32eaa2" }, { "url": "https://sinch.com/pricing/voice/", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:47:54.85828499Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "123ffc42bc27" }, { "url": "https://sinch.com/legal/privacy-notice/", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:47:48.833166192Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "6c75b4444284" }, { "url": "https://sinch.com/legal/terms-and-conditions/other-sinch-terms-conditions/general-terms-and-conditions/", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:47:50.854190332Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "743942fac2a1" } ], "updatedAt": "2026-10-05T00:25:49.867384874Z" } }, "summary": "Sinch Voice API + MCP has a score of 62.8 (B) against Exotel Voice API + MCP's 39.8 (E). Both do voice calls. The largest gap is maintenance \u0026 community, 74 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice", "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice.md", "slim": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice.min.md" }, "markdown": "Sinch Voice API + MCP has a score of 62.8 (B) against Exotel Voice API + MCP's 39.8 (E). Both do voice calls. The largest gap is maintenance \u0026 community, 74 points.\n\n- Exotel Voice API + MCP: grade E, 39.8/100, rank #424 of 452. Markdown https://www.anchorterminal.com/tools/exotel-voice.md · JSON https://www.anchorterminal.com/api/v1/tools/exotel-voice.json\n- Sinch Voice API + MCP: grade B, 62.8/100, rank #212 of 452. Markdown https://www.anchorterminal.com/tools/sinch-voice.md · JSON https://www.anchorterminal.com/api/v1/tools/sinch-voice.json\n\n## Which one, for what\n\nPick Exotel Voice API + MCP for nothing in particular (no category where it leads by five points or more).\n\nPick Sinch Voice API + MCP for schema \u0026 documentation (+31), agent ergonomics (+41), security \u0026 auth (+10), payments \u0026 pricing (+15), maintenance \u0026 community (+74), transparency \u0026 trust (+10).\n\n## Score by category\n\n| Category | Weight | Exotel Voice API + MCP | Sinch Voice API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 52 | Sinch Voice API + MCP +2 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 48 | 79 | Sinch Voice API + MCP +31 |\n| Agent ergonomics | 13% (16.2 this run) | 40 | 81 | Sinch Voice API + MCP +41 |\n| Security \u0026 auth | 14% (17.5 this run) | 40 | 50 | Sinch Voice API + MCP +10 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 35 | Sinch Voice API + MCP +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 5 | 79 | Sinch Voice API + MCP +74 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 63 | 73 | Sinch Voice API + MCP +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **39.8 · E** | **62.8 · B** | |\n\n## Facts side by side\n\n| Fact | Exotel Voice API + MCP | Sinch Voice API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Exotel | Sinch |\n| Hosted endpoint | `https://api.exotel.com/v1` | `https://voice.api.sinch.com/v2` |\n| Transports | HTTP, Streamable HTTP | HTTP, stdio, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | MIT | Apache-2.0 |\n| Tools exposed | 62 | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | not listed |\n| Last release | none | 2026-09-23 |\n| Popularity | 5 stars | 1 stars, 16k npm/wk, 11k PyPI/wk |\n| Agent reviews | 2/5 (2) | 3/5 (2) |\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**Sinch Voice API + MCP.** Voice API v2 with bidirectional PCM streams and a text relay that handles barge-in. Two API generations with different hosts, auth and markup, and v1 release notes stop in 2022.\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### Sinch Voice API + MCP\n\n1. Start new work on Voice API v2 at voice.api.sinch.com. v1 is the older callout model\n2. Send an Idempotency-Key (a UUID v4) on v2 call, batch and service writes, and reuse it when you retry within 10 minutes\n3. Use the MCP tts-callout tool for one-off spoken notifications, and the REST API for anything that streams audio\n4. Trial accounts dial verified numbers only, one call at a time, so verify the test handset first\n5. Verify the webhook signature and deduplicate on `ce-id` and `ce-source`, since fallback delivery can repeat events\n\n## Other comparisons with Exotel Voice API + MCP or Sinch Voice API + MCP\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 Sinch Voice API + MCP](https://www.anchorterminal.com/compare/bandwidth-voice-vs-sinch-voice.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 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 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 Sinch Voice API + MCP](https://www.anchorterminal.com/compare/infobip-calls-vs-sinch-voice.md)\n- [Plivo Voice API vs Sinch Voice API + MCP](https://www.anchorterminal.com/compare/plivo-voice-vs-sinch-voice.md)\n- [SignalWire Voice API vs Sinch Voice API + MCP](https://www.anchorterminal.com/compare/signalwire-voice-vs-sinch-voice.md)\n- [Sinch Voice API + MCP vs Telnyx Voice API + MCP](https://www.anchorterminal.com/compare/sinch-voice-vs-telnyx-voice.md)\n- [Sinch Voice API + MCP vs Twilio Programmable Voice API + MCP](https://www.anchorterminal.com/compare/sinch-voice-vs-twilio-voice.md)\n- [Sinch Voice API + MCP vs Vonage Voice API + MCP](https://www.anchorterminal.com/compare/sinch-voice-vs-vonage-voice.md)\n- [Sinch Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/sinch-voice-vs-voximplant.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "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 Sinch Voice API + MCP", "url": "" } ], "description": "Sinch Voice API + MCP has a score of 62.8 (B) against Exotel Voice API + MCP's 39.8 (E). Both do voice calls. The largest gap is maintenance \u0026 community, 74 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Exotel Voice API + MCP E 39.8", "Sinch Voice API + MCP B 62.8", "scores" ], "h1": "Exotel Voice API + MCP vs Sinch Voice API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-exotel-voice-vs-sinch-voice.png", "path": "/compare/exotel-voice-vs-sinch-voice", "published": "2026-10-01", "section": "tools", "title": "Exotel Voice API + MCP vs Sinch Voice API + MCP for AI agents", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/exotel-voice-vs-sinch-voice" }, "tokens": { "markdown": 1700, "slim": 380 }, "version": 1 }