{
  "data": {
    "a": {
      "slug": "jambonz",
      "name": "jambonz",
      "vendor": "FirstFive8, Inc.",
      "vendorUrl": "https://jambonz.org",
      "kind": "http-api",
      "category": "voice-calling",
      "summary": "jambonz is a programmable voice platform from FirstFive8 for calls over a customer's own SIP carriers. Applications control calls through a REST API, webhooks or a WebSocket API, on the hosted jambonz.cloud or a self-hosted cluster under a commercial licence.",
      "url": "https://www.anchorterminal.com/tools/jambonz",
      "markdownUrl": "https://www.anchorterminal.com/tools/jambonz.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/jambonz.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/jambonz.json",
      "repo": "https://github.com/jambonz/jambonz-feature-server",
      "license": "Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "@jambonz/sdk"
        },
        {
          "registry": "pypi",
          "name": "jambonz-python-sdk"
        },
        {
          "registry": "npm",
          "name": "@jambonz/mcp-schema-server"
        }
      ],
      "auth": "api-key",
      "authNotes": "A bearer token sent as `Authorization: Bearer \u003ctoken\u003e`, created in the jambonz.cloud portal or with `POST /ApiKeys` by an existing token. A token belongs to one account or one service provider and reaches everything that owner can. No scopes or read-only keys were found. Access is self-serve after a browser sign-up with email, Google or GitHub. Webhooks to the application are signed with a `Jambonz-Signature` header on the hosted platform, or protected with HTTP basic authentication.",
      "pricing": "paid",
      "pricingNotes": "jambonz.cloud costs $8 a concurrent session a month for 5 to 249 sessions, $6 for 250 to 499 and $5 for 500 or more, with no per-minute charge. A three-week trial comes first, and the terms describe choosing a subscription at its end. Self-hosted licences cost $7 a session a month or $2,000 a month for unlimited sessions on one cluster, after a 30-day trial of 10 sessions. Carrier minutes, phone numbers, speech and LLM usage are bought from other vendors. Air-gapped, OEM and Enterprise support prices are by quote (https://jambonz.org/pricing, checked 2026-10-08).",
      "priceSummary": "$8 / mo",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs index, the three OpenAPI files or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 103,
        "npmWeekly": 1368,
        "pypiWeekly": 420,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.jambonz.org",
      "llmsTxt": "https://docs.jambonz.org/llms.txt",
      "openapi": "https://docs.jambonz.org/openapi/rest-call-control.json",
      "capabilities": [
        "voice.calls",
        "voice.sip",
        "voice.streaming",
        "voice.recording",
        "voice.agent"
      ],
      "tags": [
        "hosted",
        "self-hosted",
        "sip",
        "webrtc",
        "open-source",
        "openapi",
        "llms-txt",
        "typescript",
        "python",
        "webhooks",
        "websocket",
        "free-trial"
      ],
      "lastRelease": "2026-10-04",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 49.2,
        "grade": "D",
        "agentReady": false,
        "rank": 712,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 11,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 54,
          "maintenance": 78,
          "payments": 40,
          "reliability": 36,
          "schema": 78,
          "security": 42,
          "transparency": 50
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": -3,
        "negativeNotes": [
          "24 September 2026, fixed and documented. The 11.1.5 release notes list API server flaws found in a security review, among them privilege escalation in user management, accounts able to write operator-only fields and limits, and a call-logs route that could read arbitrary CloudWatch log groups. The 11.0.0 notes of 8 July 2026 also mention cross-account authorisation hardening. No advisory or CVE was published. 3 points, reduced because the fixes shipped and were disclosed (https://docs.jambonz.org/changelog/2026/9/24)"
        ],
        "verdict": "OpenAPI 3.1 and AsyncAPI documents, an llms.txt and Markdown pages cover the REST and WebSocket APIs, and session prices are public. No status page, security.txt or advisory was found, API keys carry no scopes, and the 2021 privacy policy says audio is never stored while the October 2026 release notes say support keeps call audio for a few days.",
        "bestFor": "Teams that already have a SIP carrier and speech and LLM vendors and want call control with flat session pricing, or that must run the voice layer in their own network.",
        "strengths": [
          "Three OpenAPI 3.1 documents (10, 116 and 4 operations) and an AsyncAPI 2.6.0 document for the WebSocket channels are public",
          "The docs publish an llms.txt, every page as Markdown and a docs MCP server at `https://docs.jambonz.org/_mcp/server`",
          "Prices are per concurrent session a month ($8, $6 or $5 on the cloud), with no per-minute charge and recording and streaming included",
          "Six dated release notes from 14 August to 4 October 2026, each with a component version table and self-hosted upgrade notes",
          "The API server, feature server and both SDKs are public under MIT, and the same platform can run in the customer's own network"
        ],
        "weaknesses": [
          "No status page, uptime SLA, security.txt, `SECURITY.md` or published advisory was found for jambonz.cloud or the repositories",
          "The privacy policy of 4 May 2021 says audio is never stored. The 4 October 2026 release notes say support keeps SIP and RTP from calls for a few days",
          "API keys are bearer tokens for a whole account or service provider, with no scopes, no read-only key and no delete operation in the published reference",
          "The rate limit page gives 600 requests per 5 minutes per IP address. The 4 October release notes give 4,000 call creations a minute per account",
          "No idempotency key was found on `POST /Accounts/{AccountSid}/Calls`, so a retried request can place a second call",
          "jambonz sells no phone numbers or minutes. Every call needs a SIP trunk from another carrier and the customer's own speech vendor keys"
        ],
        "agentNotes": [
          "Send `Authorization: Bearer \u003ctoken\u003e` to `https://api.jambonz.cloud/v1`, the server in the OpenAPI files. The REST introduction page gives `https://jambonz.cloud/api` instead, so confirm the base URL with the operator",
          "Create a call with `from`, `to` and either `application_sid` or `call_hook`. Do not retry a timed-out create without checking `GET /Accounts/{AccountSid}/Calls` first",
          "Read `ratelimit-remaining` and `ratelimit-reset` on every response and stop when a `429` arrives",
          "Append `#rc=3\u0026rp=5xx,ct` to an application URL to turn on webhook retries. HTTP webhooks are not retried by default",
          "Check the account has a carrier and speech credentials before dialling. jambonz does not supply numbers, minutes or speech services"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 49.2
          }
        ],
        "editorialScores": {
          "ergonomics": 54,
          "maintenance": 78,
          "payments": 40,
          "reliability": 36,
          "schema": 78,
          "security": 42,
          "transparency": 43
        },
        "provenanceScore": 57
      },
      "connect": {
        "install": "npm install @jambonz/sdk",
        "http": "POST https://api.jambonz.cloud/v1/Accounts/{AccountSid}/Calls\nAuthorization: Bearer \u003ctoken\u003e\nContent-Type: application/json"
      },
      "letme": {
        "capability": "https://letme.dev/voice.calls",
        "tool": "https://letme.dev/jambonz"
      },
      "area": "voice",
      "unitPrices": [
        {
          "item": "Cloud, concurrent session (5 to 249 sessions)",
          "unit": "month",
          "usd": 8,
          "note": "monthly subscription, no per-minute charge"
        },
        {
          "item": "Cloud, concurrent session (250 to 499 sessions)",
          "unit": "month",
          "usd": 6,
          "note": "monthly subscription"
        },
        {
          "item": "Cloud, concurrent session (500 or more sessions)",
          "unit": "month",
          "usd": 5,
          "note": "monthly subscription"
        },
        {
          "item": "Self-hosted licence, concurrent session",
          "unit": "month",
          "usd": 7,
          "note": "one cluster, keyed to its domain"
        },
        {
          "item": "Self-hosted licence, unlimited sessions",
          "unit": "month",
          "usd": 2000,
          "note": "one cluster, keyed to its domain"
        },
        {
          "item": "Installation support package",
          "unit": "tx",
          "usd": 1000,
          "note": "one-time fee for one month of installation support"
        }
      ],
      "provenance": {
        "legalEntity": "FirstFive8, Inc.",
        "domain": "jambonz.org",
        "domainRegistered": "2019-08-13",
        "endpointOnVendorDomain": false,
        "terms": "https://jambonz.org/terms",
        "privacy": "https://jambonz.org/privacy",
        "statusPage": "",
        "changelog": "https://docs.jambonz.org/changelog",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms link is the jambonz Terms of Use, labelled Terms of Service (Cloud) in the site footer, last updated 4 May 2021, between the user and FirstFive8, Inc of Charlestown, Massachusetts. Self-hosted and OEM customers have separate terms at https://jambonz.org/legal-terms-selfhosted and https://jambonz.org/legal-terms-oem.",
          "The privacy policy was last updated 4 May 2021. It says it is intended for residents of the United States. No data processing addendum or sub-processor list was found.",
          "The hosted API answers on jambonz.cloud (`https://api.jambonz.cloud/v1` in the OpenAPI files, `https://jambonz.cloud/api` in the REST introduction), a second domain of the vendor's. The schema MCP server is on jambonz.app.",
          "No status page is linked from jambonz.org, the docs or the jambonz.cloud landing page.",
          "https://jambonz.org/.well-known/security.txt returned 404. No `SECURITY.md` was found in jambonz-api-server, jambonz-feature-server, node-sdk or python-sdk.",
          "RDAP for jambonz.org gives a registration date of 2019-08-13.",
          "The cloud terms forbid crawling, indexing or storing pages of the Service in a non-transitory manner. robots.txt on jambonz.org, docs.jambonz.org and jambonz.cloud allows every path we read. The pages were read once and the copies deleted.",
          "docs.jambonz.org/llms.txt opens with a block headed Instructions for AI Agents (append `.md` for Markdown, connect to the docs MCP server). We recorded it and did not act on it."
        ],
        "score": 57
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/jambonz.json"
    },
    "answer": "Voximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.",
    "b": {
      "slug": "voximplant",
      "name": "Voximplant",
      "vendor": "Voximplant",
      "vendorUrl": "https://voximplant.com",
      "kind": "http-api",
      "category": "voice-calling",
      "summary": "Serverless platform for programmable calling.",
      "url": "https://www.anchorterminal.com/tools/voximplant",
      "markdownUrl": "https://www.anchorterminal.com/tools/voximplant.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/voximplant.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/voximplant.json",
      "repo": "https://github.com/voximplant/apiclient-nodejs",
      "license": "Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.voximplant.com/platform_api",
      "packages": [
        {
          "registry": "npm",
          "name": "@voximplant/apiclient-nodejs"
        },
        {
          "registry": "pypi",
          "name": "voximplant-apiclient"
        }
      ],
      "auth": "mixed",
      "authNotes": "Management API accepts a service-account JWT (RS256, up to one hour) as a Bearer token, or an account ID and API key in the query string. Prefer the JWT, since query-string keys end up in logs.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go in USD. US outbound $0.017 a minute to landlines and mobiles, inbound $0.005, toll-free inbound $0.03. US numbers $1.50 a month plus $1.50 setup, toll-free $3 a month. WebSocket audio streaming $0.001 per 15 seconds per direction ($0.004 a minute each way). Voice AI connectors $0.001 per 15 seconds ($0.004 a minute), including a bidirectional stream. Recording $0.001 a minute to your own S3 or $0.0015 with 3-month cloud storage. Speech recognition $0.034 a minute (https://voximplant.com/pricing).",
      "priceSummary": "$1.50 / mo",
      "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": null,
      "popularity": {
        "githubStars": 15,
        "npmWeekly": 1419,
        "pypiWeekly": 930,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.voximplant.ai",
      "llmsTxt": "https://docs.voximplant.ai/llms.txt",
      "openapi": "https://docs.voximplant.ai/openapi.json",
      "capabilities": [
        "voice.calls",
        "voice.numbers",
        "voice.streaming",
        "voice.sip",
        "voice.recording",
        "voice.transfer"
      ],
      "tags": [
        "hosted",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "streaming",
        "webhooks"
      ],
      "lastRelease": "2026-08-26",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 51.7,
        "grade": "D",
        "agentReady": false,
        "rank": 666,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 10,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 45,
          "maintenance": 50,
          "payments": 25,
          "reliability": 65,
          "schema": 71,
          "security": 40,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Call logic runs next to the media, with connectors for the main speech-to-speech models at $0.004 a minute. Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks).",
        "bestFor": "Teams that want speech-to-speech models on the phone without running a media server, and are happy to write call logic in VoxEngine JavaScript.",
        "strengths": [
          "Call logic runs next to the media, with connectors for the main speech-to-speech models at $0.004 a minute",
          "Service-account JWTs that expire within an hour, with roles per account",
          "OpenAPI spec for the Management API and an llms.txt",
          "Published per-country rates, including number setup fees",
          "Per-session limits published with numbers"
        ],
        "weaknesses": [
          "Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks)",
          "US outbound at $0.017 a minute is higher than most here",
          "API key accepted in the query string, and no security.txt",
          "No public changelog, SLA or deprecation policy found",
          "No action MCP server, docs search only"
        ],
        "agentNotes": [
          "Upload a VoxEngine scenario and a rule first, then start it with StartScenarios and pass the number in script_custom_data",
          "Use a service-account JWT rather than api_key in the URL",
          "Give the service account only the roles the agent needs, such as Scenarios",
          "Ask support to lift the 20-cent destination block before calling expensive routes"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 51.7
          }
        ],
        "editorialScores": {
          "ergonomics": 45,
          "maintenance": 50,
          "payments": 25,
          "reliability": 65,
          "schema": 71,
          "security": 40,
          "transparency": 45
        },
        "provenanceScore": 76
      },
      "connect": {
        "http": "curl -X POST \"https://api.voximplant.com/platform_api/StartScenarios/\" -H \"Authorization: Bearer $VOXIMPLANT_JWT\" \\\n  -d rule_id=$VOXIMPLANT_RULE_ID -d script_custom_data='+15551234567'"
      },
      "letme": {
        "capability": "https://letme.dev/voice.calls",
        "tool": "https://letme.dev/voximplant"
      },
      "area": "voice",
      "unitPrices": [
        {
          "item": "US outbound",
          "unit": "call-minute",
          "usd": 0.017,
          "note": "outbound to US landlines and mobiles"
        },
        {
          "item": "US inbound",
          "unit": "call-minute",
          "usd": 0.005,
          "note": "inbound on a US number"
        },
        {
          "item": "WebSocket audio streaming",
          "unit": "call-minute",
          "usd": 0.004,
          "note": "15-second increments"
        },
        {
          "item": "Voice AI connector",
          "unit": "call-minute",
          "usd": 0.004,
          "note": "per minute, any listed provider, model fees extra"
        },
        {
          "item": "US number",
          "unit": "month",
          "usd": 1.5,
          "note": "plus $1.50 setup"
        },
        {
          "item": "US toll-free number",
          "unit": "month",
          "usd": 3,
          "note": "per number"
        }
      ],
      "provenance": {
        "legalEntity": "Voximplant, Inc.",
        "domain": "voximplant.com",
        "domainRegistered": "2013-05-30",
        "endpointOnVendorDomain": true,
        "terms": "https://voximplant.com/legal/tos",
        "privacy": "https://voximplant.com/legal/privacy",
        "statusPage": "https://status.voximplant.com",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Legal entity from the terms of service. No public changelog found."
        ],
        "score": 76
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/voximplant.json",
      "live": {
        "slug": "voximplant",
        "probe": {
          "target": "https://api.voximplant.com/platform_api",
          "method": "get",
          "lastAt": "2026-10-09T11:46:45.606824261Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 64,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 59,
          "p95ms24h": 88,
          "samples24h": 259,
          "samples30d": 2311,
          "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": 125,
              "ok": 125
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.voximplant.com",
          "indicator": "minor",
          "summary": "Minor Service Outage",
          "checkedAt": "2026-10-09T11:41:15.7140417Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@voximplant/apiclient-nodejs",
            "version": "5.0.0",
            "seenAt": "2026-10-08T16:34:40.884125814Z"
          },
          {
            "registry": "pypi",
            "name": "voximplant-apiclient",
            "version": "2.10.0",
            "released": "2026-08-26",
            "seenAt": "2026-10-08T16:34:41.749804804Z"
          }
        ],
        "githubStars": 15,
        "npmWeekly": 1857,
        "pypiWeekly": 716,
        "securityTxt": {
          "url": "https://voximplant.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:43.160991912Z"
        },
        "llmsTxt": {
          "url": "https://docs.voximplant.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:01:00.622960672Z"
        },
        "domain": {
          "domain": "voximplant.com",
          "registered": "2013-05-30",
          "source": "https://rdap.verisign.com/com/v1/domain/voximplant.com",
          "checkedAt": "2026-10-04T13:06:06.742088675Z"
        },
        "pages": [
          {
            "url": "https://voximplant.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:44.428265185Z",
            "changedAt": "2026-10-08T18:25:44.428265185Z",
            "fingerprint": "7caee4d483fe"
          },
          {
            "url": "https://voximplant.com/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:40.120793379Z",
            "changedAt": "2026-10-06T16:13:27.549838704Z",
            "fingerprint": "595aedf416de"
          },
          {
            "url": "https://voximplant.com/legal/tos",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:25:42.42739406Z",
            "changedAt": "2026-10-06T16:13:29.907861775Z",
            "fingerprint": "b4cd059fd510"
          }
        ],
        "updatedAt": "2026-10-09T11:46:45.606824261Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "FirstFive8, Inc.",
        "b": "Voximplant",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.voximplant.com/platform_api",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT",
        "b": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-04",
        "b": "2026-08-26",
        "name": "Last release"
      },
      {
        "a": "2021-05-04",
        "b": "2025-03-14",
        "name": "Terms last updated"
      },
      {
        "a": "2021-05-04",
        "b": "2025-06-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "103 stars, 1.4k npm/wk, 420 PyPI/wk",
        "b": "15 stars, 1.4k npm/wk, 930 PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Voximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.",
        "question": "Which is better for AI agents, jambonz or Voximplant?"
      },
      {
        "answer": "jambonz needs an API key. Voximplant takes an API key or an OAuth sign-in.",
        "question": "Do jambonz and Voximplant need an API key?"
      },
      {
        "answer": "No hosted endpoint is listed for jambonz. Voximplant has a hosted endpoint at https://api.voximplant.com/platform_api.",
        "question": "Can an agent call jambonz and Voximplant without installing anything?"
      },
      {
        "answer": "jambonz is open source (Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT). No open-source release is listed for Voximplant.",
        "question": "Are jambonz and Voximplant open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Schema \u0026 documentation, 78 against 71",
          "Agent ergonomics, 54 against 45",
          "Payments \u0026 pricing, 40 against 25",
          "Maintenance \u0026 community, 78 against 50"
        ],
        "also": [
          "Open source"
        ],
        "goodFor": "Teams that already have a SIP carrier and speech and LLM vendors and want call control with flat session pricing, or that must run the voice layer in their own network.",
        "slug": "jambonz",
        "watchFor": "No status page, uptime SLA, security.txt, `SECURITY.md` or published advisory was found for jambonz.cloud or the repositories"
      },
      {
        "aheadOn": [
          "Reliability, 65 against 36",
          "Transparency \u0026 trust, 61 against 50"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "No incidents deducted, where jambonz loses 3 points for them"
        ],
        "goodFor": "Teams that want speech-to-speech models on the phone without running a media server, and are happy to write call logic in VoxEngine JavaScript.",
        "slug": "voximplant",
        "watchFor": "Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks)"
      }
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        "json": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-jambonz.json",
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      {
        "json": "https://www.anchorterminal.com/compare/bandwidth-voice-vs-voximplant.json",
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      {
        "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-jambonz.json",
        "title": "Exotel Voice API + MCP vs jambonz",
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      {
        "json": "https://www.anchorterminal.com/compare/exotel-voice-vs-voximplant.json",
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        "json": "https://www.anchorterminal.com/compare/infobip-calls-vs-jambonz.json",
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      {
        "json": "https://www.anchorterminal.com/compare/infobip-calls-vs-voximplant.json",
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        "json": "https://www.anchorterminal.com/compare/jambonz-vs-livekit-telephony.json",
        "title": "jambonz vs LiveKit Telephony",
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-plivo-voice.json",
        "title": "jambonz vs Plivo Voice API",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-plivo-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-signalwire-voice.json",
        "title": "jambonz vs SignalWire Voice API",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-signalwire-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-sinch-voice.json",
        "title": "jambonz vs Sinch Voice API + MCP",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-sinch-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice.json",
        "title": "jambonz vs Telnyx Voice API + MCP",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-twilio-voice.json",
        "title": "jambonz vs Twilio Programmable Voice API + MCP",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-twilio-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/jambonz-vs-vonage-voice.json",
        "title": "jambonz vs Vonage Voice API + MCP",
        "url": "https://www.anchorterminal.com/compare/jambonz-vs-vonage-voice"
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      {
        "json": "https://www.anchorterminal.com/compare/livekit-telephony-vs-voximplant.json",
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        "json": "https://www.anchorterminal.com/compare/plivo-voice-vs-voximplant.json",
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        "url": "https://www.anchorterminal.com/compare/plivo-voice-vs-voximplant"
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      {
        "json": "https://www.anchorterminal.com/compare/signalwire-voice-vs-voximplant.json",
        "title": "SignalWire Voice API vs Voximplant",
        "url": "https://www.anchorterminal.com/compare/signalwire-voice-vs-voximplant"
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        "json": "https://www.anchorterminal.com/compare/sinch-voice-vs-voximplant.json",
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        "json": "https://www.anchorterminal.com/compare/twilio-voice-vs-voximplant.json",
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    "scores": [
      {
        "by": 29,
        "edge": "voximplant",
        "jambonz": 36,
        "key": "reliability",
        "name": "Reliability",
        "voximplant": 65,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 7,
        "edge": "jambonz",
        "jambonz": 78,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "voximplant": 71,
        "weight": 13
      },
      {
        "by": 9,
        "edge": "jambonz",
        "jambonz": 54,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "voximplant": 45,
        "weight": 13
      },
      {
        "by": 2,
        "edge": "jambonz",
        "jambonz": 42,
        "key": "security",
        "name": "Security \u0026 auth",
        "voximplant": 40,
        "weight": 14
      },
      {
        "by": 15,
        "edge": "jambonz",
        "jambonz": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "voximplant": 25,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 28,
        "edge": "jambonz",
        "jambonz": 78,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "voximplant": 50,
        "weight": 7
      },
      {
        "by": 11,
        "edge": "voximplant",
        "jambonz": 50,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "voximplant": 61,
        "weight": 7
      }
    ],
    "summary": "Voximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community. Both do voice calls.",
    "verdicts": {
      "jambonz": "OpenAPI 3.1 and AsyncAPI documents, an llms.txt and Markdown pages cover the REST and WebSocket APIs, and session prices are public. No status page, security.txt or advisory was found, API keys carry no scopes, and the 2021 privacy policy says audio is never stored while the October 2026 release notes say support keeps call audio for a few days.",
      "voximplant": "Call logic runs next to the media, with connectors for the main speech-to-speech models at $0.004 a minute. Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks)."
    }
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  "markdown": "Voximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community. Both do voice calls.\n\n- jambonz: grade D, 49.2/100, rank #712 of 842. Markdown https://www.anchorterminal.com/tools/jambonz.md · JSON https://www.anchorterminal.com/api/v1/tools/jambonz.json\n- Voximplant: grade D, 51.7/100, rank #666 of 842. Markdown https://www.anchorterminal.com/tools/voximplant.md · JSON https://www.anchorterminal.com/api/v1/tools/voximplant.json\n\n## Which one, for what\n\n### jambonz (D)\n\nGood for: Teams that already have a SIP carrier and speech and LLM vendors and want call control with flat session pricing, or that must run the voice layer in their own network.\n\nAhead on:\n- Schema \u0026 documentation, 78 against 71\n- Agent ergonomics, 54 against 45\n- Payments \u0026 pricing, 40 against 25\n- Maintenance \u0026 community, 78 against 50\n\nAlso in its favour:\n- Open source\n\nWatch for: No status page, uptime SLA, security.txt, `SECURITY.md` or published advisory was found for jambonz.cloud or the repositories\n\n### Voximplant (D)\n\nGood for: Teams that want speech-to-speech models on the phone without running a media server, and are happy to write call logic in VoxEngine JavaScript.\n\nAhead on:\n- Reliability, 65 against 36\n- Transparency \u0026 trust, 61 against 50\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- No incidents deducted, where jambonz loses 3 points for them\n\nWatch for: Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks)\n\n\n## Score by category\n\n| Category | Weight | jambonz | Voximplant | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 36 | 65 | Voximplant +29 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 78 | 71 | jambonz +7 |\n| Agent ergonomics | 13% (16.2 this run) | 54 | 45 | jambonz +9 |\n| Security \u0026 auth | 14% (17.5 this run) | 42 | 40 | jambonz +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 25 | jambonz +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 78 | 50 | jambonz +28 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 50 | 61 | Voximplant +11 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **49.2 · D** | **51.7 · D** | |\n\n## Facts side by side\n\n| Fact | jambonz | Voximplant |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | FirstFive8, Inc. | Voximplant |\n| Hosted endpoint | no (local only) | `https://api.voximplant.com/platform_api` |\n| Transports | HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Paid | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-04 | 2026-08-26 |\n| Terms last updated | 2021-05-04 | 2025-03-14 |\n| Privacy policy last updated | 2021-05-04 | 2025-06-01 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 103 stars, 1.4k npm/wk, 420 PyPI/wk | 15 stars, 1.4k npm/wk, 930 PyPI/wk |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**jambonz.** OpenAPI 3.1 and AsyncAPI documents, an llms.txt and Markdown pages cover the REST and WebSocket APIs, and session prices are public. No status page, security.txt or advisory was found, API keys carry no scopes, and the 2021 privacy policy says audio is never stored while the October 2026 release notes say support keeps call audio for a few days.\n\n**Voximplant.** Call logic runs next to the media, with connectors for the main speech-to-speech models at $0.004 a minute. Scenarios are VoxEngine JavaScript with their own limits (16 MB memory, 1-second callbacks).\n\n## Before you call either\n\n### jambonz\n\n1. Send `Authorization: Bearer \u003ctoken\u003e` to `https://api.jambonz.cloud/v1`, the server in the OpenAPI files. The REST introduction page gives `https://jambonz.cloud/api` instead, so confirm the base URL with the operator\n2. Create a call with `from`, `to` and either `application_sid` or `call_hook`. Do not retry a timed-out create without checking `GET /Accounts/{AccountSid}/Calls` first\n3. Read `ratelimit-remaining` and `ratelimit-reset` on every response and stop when a `429` arrives\n4. Append `#rc=3\u0026rp=5xx,ct` to an application URL to turn on webhook retries. HTTP webhooks are not retried by default\n5. Check the account has a carrier and speech credentials before dialling. jambonz does not supply numbers, minutes or speech services\n\n### Voximplant\n\n1. Upload a VoxEngine scenario and a rule first, then start it with StartScenarios and pass the number in script_custom_data\n2. Use a service-account JWT rather than api_key in the URL\n3. Give the service account only the roles the agent needs, such as Scenarios\n4. Ask support to lift the 20-cent destination block before calling expensive routes\n\n## Questions\n\n### Which is better for AI agents, jambonz or Voximplant?\n\nVoximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.\n\n### Do jambonz and Voximplant need an API key?\n\njambonz needs an API key. Voximplant takes an API key or an OAuth sign-in.\n\n### Can an agent call jambonz and Voximplant without installing anything?\n\nNo hosted endpoint is listed for jambonz. Voximplant has a hosted endpoint at https://api.voximplant.com/platform_api.\n\n### Are jambonz and Voximplant open source?\n\njambonz is open source (Proprietary. jambonz.cloud is under the jambonz Terms of Use and self-hosted jambonz Commercial needs a paid licence key. The API server, feature server and SDK repositories on GitHub are MIT). No open-source release is listed for Voximplant.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/jambonz-vs-voximplant.json, and with the fewest tokens: https://www.anchorterminal.com/compare/jambonz-vs-voximplant.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"jambonz\", \"b\": \"voximplant\"}`. From a terminal: `anchor compare jambonz voximplant`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/jambonz.json and https://www.anchorterminal.com/api/v1/tools/voximplant.json\n\n## Other comparisons with jambonz or Voximplant\n\n- [Bandwidth Voice API + MCP vs jambonz](https://www.anchorterminal.com/compare/bandwidth-voice-vs-jambonz.md)\n- [Bandwidth Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/bandwidth-voice-vs-voximplant.md)\n- [Exotel Voice API + MCP vs jambonz](https://www.anchorterminal.com/compare/exotel-voice-vs-jambonz.md)\n- [Exotel Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/exotel-voice-vs-voximplant.md)\n- [Infobip Calls API + MCP vs jambonz](https://www.anchorterminal.com/compare/infobip-calls-vs-jambonz.md)\n- [Infobip Calls API + MCP vs Voximplant](https://www.anchorterminal.com/compare/infobip-calls-vs-voximplant.md)\n- [jambonz vs LiveKit Telephony](https://www.anchorterminal.com/compare/jambonz-vs-livekit-telephony.md)\n- [jambonz vs Plivo Voice API](https://www.anchorterminal.com/compare/jambonz-vs-plivo-voice.md)\n- [jambonz vs SignalWire Voice API](https://www.anchorterminal.com/compare/jambonz-vs-signalwire-voice.md)\n- [jambonz vs Sinch Voice API + MCP](https://www.anchorterminal.com/compare/jambonz-vs-sinch-voice.md)\n- [jambonz vs Telnyx Voice API + MCP](https://www.anchorterminal.com/compare/jambonz-vs-telnyx-voice.md)\n- [jambonz vs Twilio Programmable Voice API + MCP](https://www.anchorterminal.com/compare/jambonz-vs-twilio-voice.md)\n- [jambonz vs Vonage Voice API + MCP](https://www.anchorterminal.com/compare/jambonz-vs-vonage-voice.md)\n- [LiveKit Telephony vs Voximplant](https://www.anchorterminal.com/compare/livekit-telephony-vs-voximplant.md)\n- [Plivo Voice API vs Voximplant](https://www.anchorterminal.com/compare/plivo-voice-vs-voximplant.md)\n- [SignalWire Voice API vs Voximplant](https://www.anchorterminal.com/compare/signalwire-voice-vs-voximplant.md)\n- [Sinch Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/sinch-voice-vs-voximplant.md)\n- [Telnyx Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/telnyx-voice-vs-voximplant.md)\n- [Twilio Programmable Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/twilio-voice-vs-voximplant.md)\n- [Vonage Voice API + MCP vs Voximplant](https://www.anchorterminal.com/compare/vonage-voice-vs-voximplant.md)\n",
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    "description": "Voximplant scores 51.7 (D) on agent readiness against jambonz's 49.2 (D), and leads in 2 of 7 scored categories. jambonz leads on schema \u0026 documentation, agent ergonomics, payments \u0026 pricing and maintenance \u0026 community. Both do voice calls. Category scores, facts, verdicts and…",
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    "title": "jambonz vs Voximplant for AI agents, D 49.2 vs D 51.7",
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