{
  "data": {
    "a": {
      "slug": "openai-realtime",
      "name": "OpenAI Realtime API",
      "vendor": "OpenAI",
      "vendorUrl": "https://openai.com",
      "kind": "http-api",
      "category": "voice-agents",
      "summary": "OpenAI's Realtime API runs spoken conversations with speech-to-speech models such as `gpt-realtime-2.1`. Clients connect over WebRTC, WebSocket or SIP, and sessions support interruptions, function calling and remote MCP tools.",
      "url": "https://www.anchorterminal.com/tools/openai-realtime",
      "markdownUrl": "https://www.anchorterminal.com/tools/openai-realtime.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/openai-realtime.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/openai-realtime.json",
      "repo": "https://github.com/openai/openai-agents-js",
      "license": "Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.openai.com/v1/realtime",
      "packages": [
        {
          "registry": "npm",
          "name": "@openai/agents"
        },
        {
          "registry": "npm",
          "name": "@openai/agents-realtime"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve API key from platform.openai.com, sent as a Bearer header on server WebSocket connections and call-control requests. For browsers and phones, a server calls `POST /v1/realtime/client_secrets` for a client secret (`ek_`) that lasts 10 seconds to 2 hours, 10 minutes by default, and can start several sessions until it expires. The browser WebSocket example passes the secret as a subprotocol. SIP calls are tied to a project by the project ID in the SIP address.",
      "pricing": "usage",
      "pricingNotes": "Per 1M tokens on `gpt-realtime-2.1`. Audio $32.00 in, $0.40 cached and $64.00 out, text $4.00 in and $24.00 out, image $5.00 in. `gpt-realtime-2.1-mini` is $10.00 and $20.00 for audio. Each response re-sends the whole conversation, and input transcription is billed separately. Usage tiers start at $5 of credit purchases. Whether the Free tier covers Realtime models was not established (https://developers.openai.com/api/docs/pricing.md, checked 2026-10-09).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Realtime guides, the pricing page or the OpenAPI file (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://developers.openai.com/api/docs/guides/realtime",
      "llmsTxt": "https://developers.openai.com/api/docs/llms.txt",
      "openapi": "https://github.com/openai/openai-openapi/blob/main/openapi.yaml",
      "capabilities": [
        "voice.agent",
        "voice.speech-to-speech",
        "voice.tools",
        "voice.telephony"
      ],
      "tags": [
        "hosted",
        "usage-priced",
        "closed-source",
        "speech-to-speech",
        "webrtc",
        "websocket",
        "sip",
        "streaming",
        "typescript",
        "python",
        "openapi",
        "llms-txt",
        "api-key",
        "function-calling",
        "mcp-client",
        "status-page"
      ],
      "lastRelease": "2026-07-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 63.3,
        "grade": "B",
        "agentReady": false,
        "rank": 439,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 10,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 76,
          "maintenance": 52,
          "payments": 20,
          "reliability": 67,
          "schema": 84,
          "security": 61,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-10-09"
        },
        "negative": 0,
        "verdict": "A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.",
        "bestFor": "Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.",
        "strengths": [
          "The OpenAPI 3.1 file in `openai/openai-openapi` covers nine Realtime paths and types 13 client events and 48 server events as schemas.",
          "Browser clients use client secrets that expire after 10 seconds to 2 hours, 10 minutes by default, so the API key stays on a server.",
          "Remote MCP tools accept an `allowed_tools` list, and `require_approval` defaults to `always` in the OpenAPI file.",
          "SIP calls connect at `sip.api.openai.com` with accept, reject, refer and hangup endpoints and a signed incoming-call webhook.",
          "The data controls page lists `/v1/realtime` with no training use, 30-day abuse logs, no stored application state and Zero Data Retention eligibility."
        ],
        "weaknesses": [
          "openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read.",
          "Realtime rate limits are shown only in account settings. The public table gives numbers for GPT-6 model families only.",
          "Every response re-sends the whole conversation, so later turns cost more. Audio is $32 in and $64 out per 1M tokens on `gpt-realtime-2.1`.",
          "The status feed names Realtime among affected components in five incidents between 24 July and 6 October 2026, with durations not shown in the feed.",
          "Session settings attached to a client secret can be overridden by the client connection, per the client secret reference."
        ],
        "agentNotes": [
          "Create a client secret on a server with `POST /v1/realtime/client_secrets` and give browsers only the `ek_` value. Never ship the API key.",
          "After a response with MCP calls finishes, send another `response.create`. The API does not create the follow-up response itself.",
          "Set `truncation` with a `retention_ratio` below 1 and `token_limits.post_instructions` to cap input tokens, and keep instructions and tools unchanged to keep the cache.",
          "On a WebSocket, stop playback on `input_audio_buffer.speech_started` and send `conversation.item.truncate` with `audio_end_ms`. WebRTC and SIP truncate on the server.",
          "Use `gpt-realtime-2.1` or `gpt-realtime-2.1-mini`. `gpt-realtime` and `gpt-realtime-mini` shut down on 20 January 2027."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "low",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 63.3
          }
        ],
        "editorialScores": {
          "ergonomics": 76,
          "maintenance": 52,
          "payments": 20,
          "reliability": 67,
          "schema": 84,
          "security": 61,
          "transparency": 58
        },
        "provenanceScore": 84
      },
      "connect": {
        "install": "npm install @openai/agents",
        "http": "curl -X POST https://api.openai.com/v1/realtime/client_secrets \\\n  -H \"Authorization: Bearer $OPENAI_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"session\": {\"type\": \"realtime\", \"model\": \"gpt-realtime-2.1\"}}'"
      },
      "letme": {
        "capability": "https://letme.dev/voice.agent",
        "tool": "https://letme.dev/openai-realtime"
      },
      "sameCompany": [
        "openai-api",
        "openai-embeddings",
        "openai-guardrails",
        "openai-moderation",
        "openai-image-api",
        "openai-sora",
        "openai-speech-to-text",
        "gpt-live",
        "openai-agents-sdk",
        "openai-decisions-api",
        "openai-codex"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "gpt-realtime-2.1 audio input",
          "unit": "1m-tokens",
          "usd": 32,
          "note": "$0.40 cached. 1 token per 100 ms of user audio, about $0.019 a minute before caching"
        },
        {
          "item": "gpt-realtime-2.1 audio output",
          "unit": "1m-tokens",
          "usd": 64,
          "note": "1 token per 50 ms of assistant audio, about $0.077 a minute"
        },
        {
          "item": "gpt-realtime-2.1 text input",
          "unit": "1m-tokens",
          "usd": 4,
          "note": "$0.40 cached"
        },
        {
          "item": "gpt-realtime-2.1 text output",
          "unit": "1m-tokens",
          "usd": 24
        },
        {
          "item": "gpt-realtime-2.1-mini audio input",
          "unit": "1m-tokens",
          "usd": 10,
          "note": "$0.30 cached"
        },
        {
          "item": "gpt-realtime-2.1-mini audio output",
          "unit": "1m-tokens",
          "usd": 20
        }
      ],
      "provenance": {
        "legalEntity": "OpenAI",
        "domain": "openai.com",
        "domainRegistered": "2007-01-19",
        "endpointOnVendorDomain": true,
        "terms": "https://openai.com/policies/services-agreement/",
        "privacy": "https://openai.com/policies/privacy-policy/",
        "statusPage": "https://status.openai.com",
        "changelog": "https://developers.openai.com/api/docs/changelog",
        "securityTxt": "unknown",
        "checked": "2026-10-09",
        "notes": [
          "The API, WebRTC and SIP endpoints are on api.openai.com and sip.api.openai.com. The docs are on developers.openai.com.",
          "RDAP for openai.com gives a registration date of 2007-01-19.",
          "The legal entity was not read. The SDK licence file says Copyright (c) 2025 OpenAI.",
          "robots.txt answered 200 on developers.openai.com and openai.com, allowing the pages read, and 404 on status.openai.com, which means no rules.",
          "openai.com answered our researcher with a bot check on 9 October 2026, so the terms and privacy policy were not read on that day. The links are the two documents OpenAI's other listings here carry. openai.com answers our policy reader with HTTP 403 as well, so neither document has been read and both are recorded as unreadable."
        ],
        "score": 84
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/openai-realtime.json",
      "live": {
        "slug": "openai-realtime",
        "probe": {
          "target": "https://api.openai.com/v1/realtime",
          "method": "get",
          "lastAt": "2026-10-18T00:31:01.552449739Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 150,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 155,
          "p95ms24h": 195,
          "samples24h": 253,
          "samples30d": 2087,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 85,
              "ok": 85
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 6,
              "ok": 6
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.openai.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:21:01.265019654Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "openai/openai-agents-js",
            "version": "@openai/agents-extensions@0.20.0",
            "released": "2026-10-08",
            "seenAt": "2026-10-17T02:07:07.328895727Z"
          },
          {
            "registry": "npm",
            "name": "@openai/agents",
            "version": "0.20.0",
            "seenAt": "2026-10-17T02:07:05.122859608Z"
          },
          {
            "registry": "npm",
            "name": "@openai/agents-realtime",
            "version": "0.20.0",
            "seenAt": "2026-10-17T02:07:05.35688795Z"
          }
        ],
        "githubStars": 3923,
        "npmWeekly": 2244819,
        "securityTxt": {
          "url": "https://openai.com/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-17T15:51:37.347246871Z"
        },
        "llmsTxt": {
          "url": "https://developers.openai.com/api/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:22:56.358586453Z"
        },
        "domain": {
          "domain": "openai.com",
          "registered": "2007-01-19",
          "source": "https://rdap.verisign.com/com/v1/domain/openai.com",
          "checkedAt": "2026-10-11T13:21:28.452415088Z"
        },
        "pages": [
          {
            "url": "https://developers.openai.com/api/docs/pricing.md",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-17T22:59:49.221180189Z",
            "changedAt": "2026-10-10T19:00:29.269280628Z",
            "fingerprint": "21d219d2f4aa"
          }
        ],
        "updatedAt": "2026-10-18T00:31:01.552449739Z"
      }
    },
    "answer": "Pipecat scores 68.9 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 5 of 7 scored categories.",
    "b": {
      "slug": "pipecat",
      "name": "Pipecat",
      "vendor": "Daily",
      "vendorUrl": "https://www.pipecat.ai/",
      "kind": "framework",
      "category": "voice-agents",
      "summary": "Pipecat is Daily's open-source Python framework for real-time voice and multimodal agents, built as pipelines of transport, speech-to-text, LLM and text-to-speech services, with client SDKs and optional hosting on Pipecat Cloud.",
      "url": "https://www.anchorterminal.com/tools/pipecat",
      "markdownUrl": "https://www.anchorterminal.com/tools/pipecat.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/pipecat.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/pipecat.json",
      "repo": "https://github.com/pipecat-ai/pipecat",
      "license": "BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service",
      "transports": [],
      "packages": [
        {
          "registry": "pypi",
          "name": "pipecat-ai"
        },
        {
          "registry": "npm",
          "name": "@pipecat-ai/client-js"
        }
      ],
      "auth": "none",
      "authNotes": "The framework has no account or key of its own and runs in the developer's process. Each service takes its provider's key, such as `DEEPGRAM_API_KEY` or `CARTESIA_API_KEY`, passed in code. Pipecat Cloud uses public and private API keys as bearer tokens, CLI login and email with a one-time code for the dashboard.",
      "pricing": "free",
      "pricingNotes": "Free under BSD-2-Clause, with no signup. The developer pays each model, speech and transport provider. Pipecat Cloud, if used, bills from $0.01 per active agent minute for agent-1x, with Daily PSTN at $0.018 a minute and 1:1 Daily WebRTC voice free (https://www.daily.co/pricing/pipecat-cloud/, read 17 October 2026).",
      "priceSummary": "Free · OSS",
      "where": "library",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the framework source, the docs or the Pipecat Cloud pricing page (checked 17 October 2026).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 16314,
        "npmWeekly": 97617,
        "pypiWeekly": 302047,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://docs.pipecat.ai",
      "llmsTxt": "https://docs.pipecat.ai/llms.txt",
      "capabilities": [
        "voice.agent",
        "voice.pipeline",
        "voice.speech-to-speech",
        "voice.tools",
        "voice.telephony",
        "agent.mcp-client",
        "agent.multi-agent"
      ],
      "tags": [
        "framework",
        "open-source",
        "self-hosted",
        "python",
        "free",
        "no-card",
        "bsd-2-clause",
        "llms-txt",
        "mcp-client",
        "pipeline",
        "speech-to-speech",
        "telephony",
        "webrtc",
        "no-telemetry"
      ],
      "lastRelease": "2026-09-26",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 68.9,
        "grade": "B",
        "agentReady": false,
        "rank": 215,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 4,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 72,
          "maintenance": 87,
          "payments": 60,
          "reliability": 72,
          "schema": 90,
          "security": 57,
          "transparency": 81
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": -4,
        "negativeNotes": [
          "2025-11-10 to 2026-06-17. Three published advisories, fixed and between four and eleven months old, so 1 point each. Remote code execution through `pickle.loads()` in the optional, deprecated LivekitFrameSerializer (GHSA-c2jg-5cp7-6wc7, CVE-2025-62373, critical, fixed in 0.0.94 on 10 November 2025, advisory published 23 April 2026), arbitrary file read through the development runner's `/files` endpoint (GHSA-3363-2ph6-35wh, high, fixed in 1.2.0 on 14 May 2026) and unauthenticated call control through the runner's telephony `/ws` endpoint (GHSA-j8cv-x86q-rj85, high, fixed in 1.4.0 on 17 June 2026). The moderate GHSA-hqm2-cfx2-2vgh of 15 October 2026 covers behaviour documented as by design and isn't deducted. https://osv.dev/vulnerability/GHSA-c2jg-5cp7-6wc7, https://osv.dev/vulnerability/GHSA-3363-2ph6-35wh, https://osv.dev/vulnerability/GHSA-j8cv-x86q-rj85",
          "2026-10-16. changelog/6193.security.md says the services for OpenAI-compatible providers other than OpenAI sent `OPENAI_API_KEY` to their provider when given no `api_key`, including when `os.getenv` read an unset variable. Fixed on main on 16 October 2026 (commit 89d0e031a) and not in a release at the check, with no advisory, so 1 point. https://github.com/pipecat-ai/pipecat/blob/main/changelog/6193.security.md"
        ],
        "verdict": "A BSD-2-Clause Python framework with dozens of speech, model and transport integrations, an MCP client that filters tools and pins arguments, and eight releases in 90 days. It has no tool-approval step, and 1.12.0 can send OPENAI_API_KEY to other OpenAI-compatible providers when no key is passed, a flaw fixed on main but not yet released.",
        "bestFor": "Python teams that want to own a voice agent's pipeline, pick each speech and model provider, and host it themselves or on Pipecat Cloud.",
        "strengths": [
          "BSD-2-Clause framework, with 23 speech-to-text, 25 LLM, 31 text-to-speech and 6 speech-to-speech services listed in the README",
          "Eight PyPI releases in the 90 days to 17 October 2026, with a dated Keep a Changelog file and pull-request links",
          "`MCPClient` takes a tool allowlist, per-tool output filters and fixed arguments hidden from the model",
          "No telemetry found in the source. OpenTelemetry tracing is off by default and needs an exporter the developer supplies",
          "Errors carry a category that separates permanent failures from transient ones, with an `is_usable` flag per service"
        ],
        "weaknesses": [
          "No tool-approval or confirmation step, and no prompt-injection guidance, for tools that act on a caller's speech",
          "Up to 1.12.0, OpenAI-compatible provider services fall back to `OPENAI_API_KEY` when given no key. Fixed on main on 16 October, unreleased",
          "Three high or critical advisories fixed since November 2025, in an optional serialiser and the development runner",
          "Breaking changes ship in minor releases, 16 flagged in 1.8.0 and 4 in 1.10.0, although the changelog says it follows semver",
          "The OpenTelemetry reference page gives `enable_tracing` a default of True, while the 1.12.0 source defaults it to False"
        ],
        "agentNotes": [
          "Pass `api_key` explicitly to every OpenAI-compatible service such as Groq, Cerebras or OpenRouter. On 1.12.0 a missing key sends `OPENAI_API_KEY` to that provider",
          "Pass `tools_filter` to `MCPClient` so only the tools the call needs reach the model, and use `tools_arguments` for values the model must not choose",
          "Gate tools that book, pay or send in your own handler. Pipecat has no approval step, and a caller's speech goes straight to the model",
          "Keep the development runner on localhost. Its `/start`, `/daily` and dial-in webhook endpoints take requests from anyone by design",
          "Pin a minor version and read the breaking-change flags in CHANGELOG.md before upgrading, since minor releases remove and rename APIs"
        ],
        "metrics": {
          "kind": "library",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 68.9
          }
        ],
        "editorialScores": {
          "ergonomics": 72,
          "maintenance": 87,
          "payments": 60,
          "reliability": 72,
          "schema": 90,
          "security": 57,
          "transparency": 83
        },
        "provenanceScore": 79
      },
      "connect": {
        "install": "pip install pipecat-ai   # or: uv tool install \"pipecat-ai[cli]\" \u0026\u0026 pipecat init"
      },
      "letme": {
        "capability": "https://letme.dev/voice.agent",
        "tool": "https://letme.dev/pipecat"
      },
      "sameCompany": [
        "pipecat-phonellm"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "Pipecat Cloud agent-1x (0.5 vCPU, 1 GB)",
          "unit": "call-minute",
          "usd": 0.01,
          "note": "per active agent minute, reserved agents $0.0005 a minute"
        },
        {
          "item": "Pipecat Cloud agent-2x (1 vCPU, 2 GB)",
          "unit": "call-minute",
          "usd": 0.02,
          "note": "per active agent minute, reserved agents $0.001 a minute"
        },
        {
          "item": "Pipecat Cloud agent-3x (1.5 vCPU, 3 GB)",
          "unit": "call-minute",
          "usd": 0.03,
          "note": "per active agent minute, reserved agents $0.0015 a minute"
        },
        {
          "item": "Daily WebRTC voice and video",
          "unit": "call-minute",
          "usd": 0.004,
          "note": "per participant minute, 1:1 voice sessions on Pipecat Cloud free"
        },
        {
          "item": "Daily PSTN dial-in or dial-out",
          "unit": "call-minute",
          "usd": 0.018,
          "note": "SIP included, SIP alone $0.003 to $0.02 a minute"
        },
        {
          "item": "SIP REFER call transfer",
          "unit": "tx",
          "usd": 0.2,
          "note": "per transfer event"
        },
        {
          "item": "Audio recording",
          "unit": "audio-minute",
          "usd": 0.005,
          "note": "storage $0.003 a minute"
        }
      ],
      "provenance": {
        "legalEntity": "Daily",
        "domain": "pipecat.ai",
        "domainRegistered": "2024-05-01",
        "endpointOnVendorDomain": null,
        "terms": "https://www.daily.co/legal/terms-of-service/",
        "privacy": "https://www.daily.co/legal/privacy/",
        "statusPage": "https://status.pipecat.daily.co",
        "changelog": "https://github.com/pipecat-ai/pipecat/blob/main/CHANGELOG.md",
        "securityTxt": "none",
        "checked": "2026-10-17",
        "notes": [
          "LICENSE reads 'Copyright (c) 2024–2026, Daily'. The terms of service (last updated 31 March 2025) say Daily and name Pipecat Cloud and Daily's open-source frameworks among its services. The DPA (last updated 1 May 2025) names the company 'Daily, Co.' at 548 Market St., San Francisco.",
          "RDAP gives pipecat.ai a registration date of 1 May 2024. The docs are at docs.pipecat.ai and the code under GitHub's pipecat-ai organisation.",
          "security.txt returns 404 on www.pipecat.ai, docs.pipecat.ai and www.daily.co. SECURITY.md and the Pipecat Cloud security guide route reports to an email address at Daily, which the guide says is acknowledged within a week. Daily publishes a responsible disclosure policy with no bounty.",
          "The privacy policy is effective 6 January 2025. The sub-processor list is dated 1 September 2026.",
          "The status page covers Pipecat Cloud, not the framework.",
          "WebFetch refused docs.pipecat.ai and github.com, so docs.pipecat.ai, www.daily.co, status.pipecat.daily.co, developers.cloudflare.com, huggingface.co, pypi.org, api.osv.dev, pypistats.org, repos.ecosyste.ms, issues.ecosyste.ms, the npm registry, the MCP registry and rdap.org were read with curl after their robots.txt. GitHub's own pages answered 403 through the session's proxy."
        ],
        "score": 79
      },
      "requirements": {
        "card": "unknown",
        "freeTier": true,
        "minutes": 20,
        "credential": "api-key",
        "hosting": [
          "self-hosted"
        ],
        "euResidency": "unknown",
        "trainsOnData": "no",
        "zeroRetention": "unknown",
        "dpa": true,
        "selfHost": "yes"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/pipecat.json",
      "live": {
        "slug": "pipecat",
        "vendorStatus": {
          "page": "https://status.pipecat.daily.co",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:21:07.916992321Z"
        },
        "pages": [
          {
            "url": "https://raw.githubusercontent.com/pipecat-ai/pipecat/main/CHANGELOG.md",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T23:10:46.812428744Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "0fb6d8e3d8a2"
          },
          {
            "url": "https://www.daily.co/pricing/pipecat-cloud/",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:14:57.395170578Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "06f32f71f3dd"
          }
        ],
        "updatedAt": "2026-10-18T00:21:07.916992321Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "Agent framework",
        "name": "Kind"
      },
      {
        "a": "OpenAI",
        "b": "Daily",
        "name": "Vendor"
      },
      {
        "a": "https://api.openai.com/v1/realtime",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "None",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Free",
        "name": "Pricing"
      },
      {
        "a": "not published",
        "b": "$0.01 per minute of call",
        "name": "Price for voice agents"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT",
        "b": "BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-07-28",
        "b": "2026-09-26",
        "name": "Last release"
      },
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        "a": "couldn't be read",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "16k stars, 98k npm/wk, 302k PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "3.3/5 (4)",
        "b": "3/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Pipecat scores 68.9 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 5 of 7 scored categories.",
        "question": "Which is better for AI agents, OpenAI Realtime API or Pipecat?"
      },
      {
        "answer": "OpenAI Realtime API has a hosted endpoint at https://api.openai.com/v1/realtime. No hosted endpoint is listed for Pipecat.",
        "question": "Can an agent call OpenAI Realtime API and Pipecat without installing anything?"
      },
      {
        "answer": "No open-source release is listed for OpenAI Realtime API. Pipecat is open source (BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service).",
        "question": "Are OpenAI Realtime API and Pipecat open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": null,
        "also": [
          "A hosted endpoint, with nothing to install",
          "No incidents deducted, where Pipecat loses 4 points for them"
        ],
        "goodFor": "Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.",
        "slug": "openai-realtime",
        "watchFor": "openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read."
      },
      {
        "aheadOn": [
          "Reliability, 72 against 67",
          "Schema \u0026 documentation, 90 against 84",
          "Payments \u0026 pricing, 60 against 20",
          "Maintenance \u0026 community, 87 against 52",
          "Transparency \u0026 trust, 81 against 71"
        ],
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          "Free to start without a card",
          "Open source"
        ],
        "goodFor": "Python teams that want to own a voice agent's pipeline, pick each speech and model provider, and host it themselves or on Pipecat Cloud.",
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        "title": "Pipecat vs Ultravox Realtime API",
        "url": "https://www.anchorterminal.com/compare/pipecat-vs-ultravox"
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        "json": "https://www.anchorterminal.com/compare/pipecat-vs-vapi.json",
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    "scores": [
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        "edge": "pipecat",
        "key": "reliability",
        "name": "Reliability",
        "openai-realtime": 67,
        "pipecat": 72,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 6,
        "edge": "pipecat",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "openai-realtime": 84,
        "pipecat": 90,
        "weight": 13
      },
      {
        "by": 4,
        "edge": "openai-realtime",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "openai-realtime": 76,
        "pipecat": 72,
        "weight": 13
      },
      {
        "by": 4,
        "edge": "openai-realtime",
        "key": "security",
        "name": "Security \u0026 auth",
        "openai-realtime": 61,
        "pipecat": 57,
        "weight": 14
      },
      {
        "by": 40,
        "edge": "pipecat",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "openai-realtime": 20,
        "pipecat": 60,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 35,
        "edge": "pipecat",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "openai-realtime": 52,
        "pipecat": 87,
        "weight": 7
      },
      {
        "by": 10,
        "edge": "pipecat",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "openai-realtime": 71,
        "pipecat": 81,
        "weight": 7
      }
    ],
    "summary": "Pipecat scores 68.9 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 5 of 7 scored categories. Both do voice agents.",
    "tutorials": [],
    "verdicts": {
      "openai-realtime": "A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.",
      "pipecat": "A BSD-2-Clause Python framework with dozens of speech, model and transport integrations, an MCP client that filters tools and pins arguments, and eight releases in 90 days. It has no tool-approval step, and 1.12.0 can send OPENAI_API_KEY to other OpenAI-compatible providers when no key is passed, a flaw fixed on main but not yet released."
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  "markdown": "Pipecat scores 68.9 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 5 of 7 scored categories. Both do voice agents.\n\n- OpenAI Realtime API: grade B, 63.3/100, rank #439 of 1133. Markdown https://www.anchorterminal.com/tools/openai-realtime.md · JSON https://www.anchorterminal.com/api/v1/tools/openai-realtime.json\n- Pipecat: grade B, 68.9/100, rank #215 of 1133. Markdown https://www.anchorterminal.com/tools/pipecat.md · JSON https://www.anchorterminal.com/api/v1/tools/pipecat.json\n- Best conversational voice-agent APIs: https://www.anchorterminal.com/best/voice-agents/index.md\n- All 184 voice agents comparisons: https://www.anchorterminal.com/compare/voice-agents/index.md\n\n## Which one, for what\n\n### OpenAI Realtime API (B)\n\nGood for: Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- No incidents deducted, where Pipecat loses 4 points for them\n\nWatch for: openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read.\n\n### Pipecat (B)\n\nGood for: Python teams that want to own a voice agent's pipeline, pick each speech and model provider, and host it themselves or on Pipecat Cloud.\n\nAhead on:\n- Reliability, 72 against 67\n- Schema \u0026 documentation, 90 against 84\n- Payments \u0026 pricing, 60 against 20\n- Maintenance \u0026 community, 87 against 52\n- Transparency \u0026 trust, 81 against 71\n\nAlso in its favour:\n- No key needed to call it\n- Free to start without a card\n- Open source\n\nWatch for: No tool-approval or confirmation step, and no prompt-injection guidance, for tools that act on a caller's speech\n\n\n## Score by category\n\n| Category | Weight | OpenAI Realtime API | Pipecat | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 67 | 72 | Pipecat +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 90 | Pipecat +6 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 72 | OpenAI Realtime API +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 57 | OpenAI Realtime API +4 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 60 | Pipecat +40 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 52 | 87 | Pipecat +35 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 81 | Pipecat +10 |\n| Negative events | ≤15 | 0 | -4 | |\n| **Total** | | **63.3 · B** | **68.9 · B** | |\n\n## Facts side by side\n\n| Fact | OpenAI Realtime API | Pipecat |\n| --- | --- | --- |\n| Kind | HTTP API | Agent framework |\n| Vendor | OpenAI | Daily |\n| Hosted endpoint | `https://api.openai.com/v1/realtime` | no (local only) |\n| Transports | HTTP |  |\n| Auth | API key | None |\n| Pricing | Pay per use | Free |\n| Price for voice agents | not published | $0.01 per minute of call |\n| x402 | no | no |\n| Licence | Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT | BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-07-28 | 2026-09-26 |\n| Terms last updated | couldn't be read |  |\n| Privacy policy last updated | couldn't be read |  |\n| Customer content may train models | couldn't be read |  |\n| Terms restrict automated access | couldn't be read |  |\n| Terms restrict benchmarking | couldn't be read |  |\n| Terms or service can change without notice | couldn't be read |  |\n| Arbitration or class-action waiver | couldn't be read |  |\n| Popularity | none | 16k stars, 98k npm/wk, 302k PyPI/wk |\n| Agent reviews | 3.3/5 (4) | 3/5 (4) |\n\n## Verdicts\n\n**OpenAI Realtime API.** A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.\n\n**Pipecat.** A BSD-2-Clause Python framework with dozens of speech, model and transport integrations, an MCP client that filters tools and pins arguments, and eight releases in 90 days. It has no tool-approval step, and 1.12.0 can send OPENAI_API_KEY to other OpenAI-compatible providers when no key is passed, a flaw fixed on main but not yet released.\n\n## Before you call either\n\n### OpenAI Realtime API\n\n1. Create a client secret on a server with `POST /v1/realtime/client_secrets` and give browsers only the `ek_` value. Never ship the API key.\n2. After a response with MCP calls finishes, send another `response.create`. The API does not create the follow-up response itself.\n3. Set `truncation` with a `retention_ratio` below 1 and `token_limits.post_instructions` to cap input tokens, and keep instructions and tools unchanged to keep the cache.\n4. On a WebSocket, stop playback on `input_audio_buffer.speech_started` and send `conversation.item.truncate` with `audio_end_ms`. WebRTC and SIP truncate on the server.\n5. Use `gpt-realtime-2.1` or `gpt-realtime-2.1-mini`. `gpt-realtime` and `gpt-realtime-mini` shut down on 20 January 2027.\n\n### Pipecat\n\n1. Pass `api_key` explicitly to every OpenAI-compatible service such as Groq, Cerebras or OpenRouter. On 1.12.0 a missing key sends `OPENAI_API_KEY` to that provider\n2. Pass `tools_filter` to `MCPClient` so only the tools the call needs reach the model, and use `tools_arguments` for values the model must not choose\n3. Gate tools that book, pay or send in your own handler. Pipecat has no approval step, and a caller's speech goes straight to the model\n4. Keep the development runner on localhost. Its `/start`, `/daily` and dial-in webhook endpoints take requests from anyone by design\n5. Pin a minor version and read the breaking-change flags in CHANGELOG.md before upgrading, since minor releases remove and rename APIs\n\n## Questions\n\n### Which is better for AI agents, OpenAI Realtime API or Pipecat?\n\nPipecat scores 68.9 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 5 of 7 scored categories.\n\n### Can an agent call OpenAI Realtime API and Pipecat without installing anything?\n\nOpenAI Realtime API has a hosted endpoint at https://api.openai.com/v1/realtime. No hosted endpoint is listed for Pipecat.\n\n### Are OpenAI Realtime API and Pipecat open source?\n\nNo open-source release is listed for OpenAI Realtime API. Pipecat is open source (BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat.json, and with the fewest tokens: https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"openai-realtime\", \"b\": \"pipecat\"}`. From a terminal: `anchor compare openai-realtime pipecat`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/openai-realtime.json and https://www.anchorterminal.com/api/v1/tools/pipecat.json\n\n## Other comparisons with OpenAI Realtime API or Pipecat\n\n- [AssemblyAI Voice Agent API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-openai-realtime.md)\n- [AssemblyAI Voice Agent API vs Pipecat](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-pipecat.md)\n- [Bland AI API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/bland-ai-vs-openai-realtime.md)\n- [Bland AI API + MCP vs Pipecat](https://www.anchorterminal.com/compare/bland-ai-vs-pipecat.md)\n- [Bolna API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/bolna-vs-openai-realtime.md)\n- [Bolna API + MCP vs Pipecat](https://www.anchorterminal.com/compare/bolna-vs-pipecat.md)\n- [Deepgram Voice Agent API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime.md)\n- [Deepgram Voice Agent API vs Pipecat](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat.md)\n- [ElevenLabs Agents API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-openai-realtime.md)\n- [ElevenLabs Agents API + MCP vs Pipecat](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-pipecat.md)\n- [Gemini Live API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/gemini-live-vs-openai-realtime.md)\n- [Gemini Live API vs Pipecat](https://www.anchorterminal.com/compare/gemini-live-vs-pipecat.md)\n- [Hume EVI (Empathic Voice Interface) vs OpenAI Realtime API](https://www.anchorterminal.com/compare/hume-evi-vs-openai-realtime.md)\n- [Hume EVI (Empathic Voice Interface) vs Pipecat](https://www.anchorterminal.com/compare/hume-evi-vs-pipecat.md)\n- [LiveKit Agents vs OpenAI Realtime API](https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.md)\n- [LiveKit Agents vs Pipecat](https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat.md)\n- [OpenAI Realtime API vs PlaceCall](https://www.anchorterminal.com/compare/openai-realtime-vs-placecall.md)\n- [OpenAI Realtime API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.md)\n- [OpenAI Realtime API vs Synthflow API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow.md)\n- [OpenAI Realtime API vs Ultravox Realtime API](https://www.anchorterminal.com/compare/openai-realtime-vs-ultravox.md)\n- [OpenAI Realtime API vs Vapi API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-vapi.md)\n- [OpenAI Realtime API vs Vocily AI](https://www.anchorterminal.com/compare/openai-realtime-vs-vocily.md)\n- [OpenAI Realtime API vs Vogent API](https://www.anchorterminal.com/compare/openai-realtime-vs-vogent.md)\n- [Pipecat vs PlaceCall](https://www.anchorterminal.com/compare/pipecat-vs-placecall.md)\n- [Pipecat vs Retell AI API + MCP](https://www.anchorterminal.com/compare/pipecat-vs-retell-ai.md)\n- [Pipecat vs Synthflow API + MCP](https://www.anchorterminal.com/compare/pipecat-vs-synthflow.md)\n- [Pipecat vs Ultravox Realtime API](https://www.anchorterminal.com/compare/pipecat-vs-ultravox.md)\n- [Pipecat vs Vapi API + MCP](https://www.anchorterminal.com/compare/pipecat-vs-vapi.md)\n- [Pipecat vs Vocily AI](https://www.anchorterminal.com/compare/pipecat-vs-vocily.md)\n- [Pipecat vs Vogent API](https://www.anchorterminal.com/compare/pipecat-vs-vogent.md)\n- [CueLight vs Pipecat](https://www.anchorterminal.com/compare/cuelight-vs-pipecat.md)\n- [Pipecat vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/pipecat-vs-pipecat-phonellm.md)\n- [GPT-Live vs OpenAI Realtime API](https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.md)\n- [GPT-Live vs Pipecat](https://www.anchorterminal.com/compare/gpt-live-vs-pipecat.md)\n- [OpenAI Realtime API vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm.md)\n",
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