{ "data": { "a": { "slug": "bland-ai", "name": "Bland AI API + MCP", "vendor": "Bland AI", "vendorUrl": "https://www.bland.ai", "kind": "http-api", "category": "voice-agents", "summary": "Phone-first voice-agent platform that runs its own speech recognition, language model, TTS and telephony, billed as one per-minute rate.", "url": "https://www.anchorterminal.com/tools/bland-ai", "markdownUrl": "https://www.anchorterminal.com/tools/bland-ai.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/bland-ai.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/bland-ai.json", "dns": "bland-ai.grade.anchorterminal.com", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://api.bland.ai/v1", "packages": [ { "registry": "npm", "name": "bland-cli" } ], "auth": "api-key", "authNotes": "API key in the `Authorization` header for REST, and as `Bearer org_...` for the hosted MCP server at `https://api.bland.ai/v1/mcp`. The `bland mcp` command in the CLI runs a local stdio server. An agent can sign its owner up through a device-code flow or a headless flow that needs a texted 6-digit code from the owner.", "pricing": "freemium", "pricingNotes": "Start is free to join with 2 credits and an inbound number, no card, then $0.14 a connected minute and $0.05 a transfer minute, 10 concurrent calls, 100 calls an hour and 100 a day. Build is $299 a month with $0.12 a minute, $0.04 transfer, 50 concurrent calls, 1,000 an hour and 2,000 a day. The billing docs still list Scale at $499 a month with $0.11 a minute, $0.03 transfer, 100 concurrent calls and 5,000 calls a day, though the pricing page now shows only Start, Build and Enterprise. Enterprise is custom. Every outbound attempt has a $0.015 minimum and failed calls are charged $0.015. SMS is $0.02 a message. The rate covers STT, LLM, TTS and telephony, and BYO Twilio customers pay no transfer fee. An Agent Phone Plan for personal AI agents is $29.99 a month ($14.99 the first month) (https://www.bland.ai/pricing, https://docs.bland.ai/platform/billing).", "priceSummary": "$299 / mo", "where": "both", "x402": { "level": "no", "evidence": "No x402 support in the docs, pricing page or MCP docs (checked 2026-09-30). Headless signup for the Agent Phone Plan answers HTTP 402 with a Machine Payments Protocol challenge settled through Stripe Link, which is a different protocol from x402 and only covers that plan (https://docs.bland.ai/platform/agent-headless-onboarding).", "endpoints": [] }, "toolCount": 42, "popularity": { "githubStars": null, "npmWeekly": 1179, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.bland.ai", "llmsTxt": "https://docs.bland.ai/llms.txt", "capabilities": [ "voice.agent", "voice.pipeline", "voice.tools", "voice.telephony" ], "tags": [ "hosted", "closed-source", "freemium", "no-card", "mcp", "llms-txt", "webhooks", "pipeline", "enterprise" ], "lastRelease": "2026-09-13", "graded": true, "anchor": { "graded": true, "score": 67, "grade": "B", "agentReady": false, "rank": 342, "ranked": true, "rankOf": 1486, "categoryRank": 7, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 53, "maintenance": 70, "payments": 65, "reliability": 65, "schema": 68, "security": 79, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-02" }, "negative": 0, "verdict": "One per-minute rate covering STT, LLM, TTS and telephony, $0.14 on Start and $0.12 on Build, and restricted keys with per-resource scopes rolling out. No OpenAPI document, the MCP server lists over 340 tools without toolsets, and the product changelog's newest entry is from 3 August 2026.", "bestFor": "Teams that want one predictable per-minute bill for outbound and inbound phone agents, and personal agents that need their own US number.", "strengths": [ "One per-minute rate covering STT, LLM, TTS and telephony, $0.14 on Start and $0.12 on Build", "Start plan with 2 credits and an inbound number, no card", "Restricted API keys with per-resource scopes and OAuth client credentials, rolling out by organisation", "Headless agent signup that needs only a 6-digit texted code from the owner", "Subprocessor list with locations and a valid security.txt" ], "weaknesses": [ "No OpenAPI document", "The hosted MCP server lists 62 dedicated and 282 API Reference tools with no toolsets", "Failed calls and outbound attempts cost $0.015 each", "No product changelog entry since 3 August 2026", "Privacy policy gives no retention period for recordings or transcripts" ], "agentNotes": [ "Call `wait_for_call` (it waits up to 45 seconds) instead of polling `get_call_log`", "Keep client tool-approval prompts on for destructive MCP tools; the server no longer asks for confirmation", "Space calls to the same number at least 10 seconds apart or expect a 429", "Budget $0.015 for every outbound attempt, including ones that never connect", "Use a restricted key with only the scopes you need for REST calls; the MCP server needs a full-access key or sign-in" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67 } ], "editorialScores": { "ergonomics": 53, "maintenance": 70, "payments": 65, "reliability": 65, "schema": 68, "security": 79, "transparency": 55 }, "provenanceScore": 89, "checked": { "categories": { "ergonomics": "2026-11-02", "maintenance": "2026-11-02", "payments": "2026-11-02", "reliability": "2026-11-02", "schema": "2026-11-02", "security": "2026-11-02", "transparency": "2026-11-02" }, "last": "2026-11-02", "lastMoved": "2026-11-02", "oldest": "2026-11-02", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl -X POST https://api.bland.ai/v1/calls -H \"Authorization: $BLAND_API_KEY\" \\\n -H \"content-type: application/json\" \\\n -d '{\"phone_number\":\"+15551234567\",\"task\":\"Confirm tomorrow 3pm appointment and ask if they need to reschedule.\"}'", "claudeCode": "claude mcp add --transport http bland https://api.bland.ai/v1/mcp --header \"Authorization: Bearer $BLAND_API_KEY\"", "config": { "mcpServers": { "bland": { "args": [ "bland-cli", "mcp" ], "command": "npx", "env": { "BLAND_API_KEY": "${BLAND_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/bland-ai" }, "area": "voice", "unitPrices": [ { "item": "Start plan connected minute", "unit": "call-minute", "usd": 0.14, "note": "all in, STT, LLM, TTS and telephony" }, { "item": "Build plan connected minute", "unit": "call-minute", "usd": 0.12, "note": "all in, plus $299 a month" }, { "item": "Start plan transfer minute", "unit": "call-minute", "usd": 0.05, "note": "Bland numbers only" }, { "item": "Build plan", "unit": "month", "usd": 299 }, { "item": "Agent Phone Plan", "unit": "month", "usd": 29.99, "note": "$14.99 the first month" } ], "provenance": { "legalEntity": "Intelliga Corporation", "domain": "bland.ai", "domainRegistered": "2023-07-30", "endpointOnVendorDomain": true, "terms": "https://www.bland.ai/legal/terms", "privacy": "https://www.bland.ai/legal/privacy", "statusPage": "https://status.bland.ai", "changelog": "https://www.bland.ai/changelog", "securityTxt": "valid", "checked": "2026-11-02", "notes": [ "The terms (last updated 2026-08-28) define Bland AI as Intelliga Corporation, d/b/a Bland AI, and the privacy policy (last updated 2026-06-23) names Intelliga Corp DBA Bland AI. The 1 October check recorded Bland Inc. from the terms, which the page doesn't say.", "security.txt re-read on 2 November, valid until 2027-04-05." ], "score": 89 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/bland-ai.json", "live": { "slug": "bland-ai", "probe": { "target": "https://api.bland.ai/v1", "method": "get", "lastAt": "2026-11-07T18:20:14.153132337Z", "lastOk": true, "lastStatus": 404, "lastMs": 455, "authRequired": false, "uptime24h": 100, "uptime30d": 99.99, "p50ms24h": 286, "p95ms24h": 921, "samples24h": 239, "samples30d": 7910, "days": [ { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 251 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 251, "ok": 251 }, { "date": "2026-10-29", "probes": 249, "ok": 249 }, { "date": "2026-10-30", "probes": 248, "ok": 248 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 248, "ok": 248 }, { "date": "2026-11-04", "probes": 246, "ok": 246 }, { "date": "2026-11-05", "probes": 185, "ok": 185 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 187, "ok": 187 } ] }, "vendorStatus": { "page": "https://status.bland.ai", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T18:20:36.672065774Z" }, "versions": [ { "registry": "npm", "name": "bland-cli", "version": "0.10.1", "seenAt": "2026-11-06T23:11:32.614044276Z" } ], "npmWeekly": 927, "securityTxt": { "url": "https://bland.ai/.well-known/security.txt", "state": "valid", "expires": "2027-04-05T00:00:00.000Z", "checkedAt": "2026-11-07T16:01:45.257873207Z" }, "llmsTxt": { "url": "https://docs.bland.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:31:43.530476107Z" }, "domain": { "domain": "bland.ai", "registered": "2023-07-30", "source": "https://rdap.identitydigital.services/rdap/domain/bland.ai", "checkedAt": "2026-11-01T14:10:34.382724721Z" }, "pages": [ { "url": "https://www.bland.ai/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:25:48.675285316Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "d73002ae0cca" }, { "url": "https://docs.bland.ai/platform/billing", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:05:18.42108214Z", "changedAt": "2026-11-04T08:20:07.196287026Z", "fingerprint": "8af49f4a7052" }, { "url": "https://www.bland.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-07T14:25:54.983972534Z", "changedAt": "2026-11-03T08:03:50.581468723Z", "fingerprint": "668a77131455" }, { "url": "https://www.bland.ai/legal/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:25:51.186792164Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b2d6dc77b3fe" }, { "url": "https://www.bland.ai/legal/terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:25:53.200511189Z", "changedAt": "2026-10-16T22:34:47.650331397Z", "fingerprint": "ff68518bd660" } ], "mcpTools": { "url": "https://api.bland.ai/v1/mcp", "checkedAt": "2026-11-07T01:42:51.648544902Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-11-07T01:42:51.648544902Z" }, "updatedAt": "2026-11-07T18:20:14.153132337Z" } }, "answer": "Bland AI API + MCP scores 67 (B) on agent readiness against Inworld Realtime API's 60.1 (C), and leads in 5 of 7 scored categories. Inworld Realtime API leads on agent ergonomics.", "b": { "slug": "inworld-realtime", "name": "Inworld Realtime API", "vendor": "Inworld AI", "vendorUrl": "https://inworld.ai", "kind": "http-api", "category": "voice-agents", "summary": "Inworld's Realtime API runs spoken conversations over WebSocket or WebRTC, chaining Inworld STT, an LLM chosen by the developer and Inworld TTS, with turn detection, interruptions and tool calling. It follows OpenAI's Realtime protocol.", "url": "https://www.anchorterminal.com/tools/inworld-realtime", "markdownUrl": "https://www.anchorterminal.com/tools/inworld-realtime.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/inworld-realtime.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/inworld-realtime.json", "dns": "inworld-realtime.grade.anchorterminal.com", "transports": [ "websocket", "http" ], "packages": [ { "registry": "npm", "name": "@inworld/cli" } ], "auth": "api-key", "authNotes": "Servers send `Authorization: Basic` with the Base64 `key_id:secret` credential. Browsers send `Authorization: Bearer` with a session token minted server side. The `key` query parameter in the WebSocket URL is a session ID, not a secret.", "pricing": "usage", "pricingNotes": "No per-minute or per-session price. A session is billed as its STT ($0.10 to $0.15 an hour), its LLM tokens at the model's rate and its TTS characters (TTS-2 from $25 per million on the free plan). Segments already sent to TTS are billed after an interruption.", "priceSummary": "Pay per use", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, llms.txt or pricing page (checked 2026-11-06). Plans and credits are bought in the Portal.", "endpoints": [] }, "toolCount": 0, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://docs.inworld.ai/realtime/overview", "llmsTxt": "https://docs.inworld.ai/llms.txt", "capabilities": [ "voice.agent", "voice.pipeline", "voice.tools", "voice.telephony" ], "tags": [ "hosted", "usage", "free-tier", "closed-source", "llms-txt", "streaming", "websocket", "webrtc", "openai-compatible", "enterprise" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 60.1, "grade": "C", "agentReady": false, "rank": 668, "ranked": true, "rankOf": 1486, "categoryRank": 12, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 68, "maintenance": 71, "payments": 40, "reliability": 62, "schema": 60, "security": 58, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-06" }, "negative": 0, "verdict": "Inworld's Realtime API speaks OpenAI's Realtime protocol over WebSocket or WebRTC, with a choice of LLM, client-side tools and dated release notes. Cost is the sum of STT, LLM and TTS usage with no per-minute price, there is no machine-readable event schema, and status history couldn't be read.", "bestFor": "Teams moving off OpenAI's Realtime API who want a choice of LLM and Inworld voices.", "strengths": [ "Follows OpenAI's Realtime events, with a migration guide that changes only the URL, key and a few defaults", "Dated release notes name affected clients and required actions for each compatibility change", "A choice of LLM through Inworld's router, with prompt caching on Anthropic models", "Concurrent sessions from 10 on the free plan to 1,000 on Growth", "Zero data retention covers session content from the Developer plan up" ], "weaknesses": [ "No per-minute price. A session's cost depends on STT, LLM tokens and TTS characters, and interrupted segments are still billed", "No AsyncAPI or other machine-readable schema for the socket events", "Status history couldn't be read, and an SLA exists only for Enterprise", "The 21 July 2026 release changed response and item shapes for existing clients", "Zero data retention doesn't cover requests routed to third-party LLM providers" ], "agentNotes": [ "Set the auto follow-up off if your client sends its own `response.create` after a tool result, or replies double", "Read `response.done` usage as an estimate and mute input audio when nobody speaks, since STT bills every second sent", "Use `response.speak` for fixed greetings, which skips the LLM", "Treat `unsupported_field` errors as warnings and keep the session open", "Mint browser session tokens on your server and never ship the Basic credential to a client" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 60.1 } ], "editorialScores": { "ergonomics": 68, "maintenance": 71, "payments": 40, "reliability": 62, "schema": 60, "security": 58, "transparency": 51 }, "provenanceScore": 75, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npm install -g @inworld/cli" }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/inworld-realtime" }, "sameCompany": [ "inworld-stt", "inworld-tts", "inworld-voice-cloning" ], "area": "voice", "unitPrices": [ { "item": "Speech recognition in a session", "unit": "audio-minute", "usd": 0.0025, "note": "STT-1 at $0.15 an hour On-Demand, $0.10 on paid plans" }, { "item": "Agent speech, TTS-2", "unit": "1m-chars", "usd": 25, "note": "free On-Demand plan; lower on paid plans" } ], "provenance": { "legalEntity": "Theai, Inc. dba Inworld AI", "domain": "inworld.ai", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://inworld.ai/terms", "privacy": "https://inworld.ai/privacy", "statusPage": "https://status.inworld.ai", "changelog": "https://docs.inworld.ai/release-notes/realtime", "securityTxt": "none", "checked": "2026-11-06", "notes": [ "The Terms of Service (effective 11 June 2025) are an agreement with Theai, Inc. dba Inworld AI under California law, with courts in Santa Clara. The Privacy Notice (last updated 18 January 2026) names Theai, Inc.", "inworld.ai/.well-known/security.txt returns 404. The security page links a vulnerability report form.", "status.inworld.ai runs the open-source issue-status app, which draws incidents from GitHub issues in inworld-ai/inworld-issue-status. Its history wasn't read, because GitHub's robots.txt couldn't be read from our environment.", "inworld.ai's robots.txt allows Claude agents on the paths read and sets `Content-Signal: ai-train=no, search=yes, ai-input=no`. docs.inworld.ai has no such signal.", "The domain's registration date wasn't established, because the RDAP lookup failed.", "firstReleased is left empty. The public Realtime release notes start on 21 July 2026 and no launch date was found." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/inworld-realtime.json", "live": { "slug": "inworld-realtime", "vendorStatus": { "page": "https://status.inworld.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-07T04:47:57.03709454Z" }, "versions": [ { "registry": "npm", "name": "@inworld/cli", "version": "1.5.0", "seenAt": "2026-11-06T23:35:04.551623033Z" } ], "npmWeekly": 290, "securityTxt": { "url": "https://inworld.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:11.794771951Z" }, "llmsTxt": { "url": "https://docs.inworld.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:46.028273902Z" }, "pages": [ { "url": "https://docs.inworld.ai/release-notes/realtime", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:06:42.218731652Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9ae0f1f05b69" }, { "url": "https://inworld.ai/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-11-07T14:11:39.031139211Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "99dc39a9de92" }, { "url": "https://inworld.ai/terms", "kind": "terms", "status": 304, "checkedAt": "2026-11-07T14:11:41.181276356Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "777d881cbf9b" } ], "updatedAt": "2026-11-07T16:01:11.794771951Z" } }, "edges": [ { "by": 25, "category": "payments", "leads": "bland-ai", "name": "Payments \u0026 pricing", "reasons": { "a": "No x402 or L402. The headless signup endpoint answers 402 with a Machine Payments Protocol challenge settled through Stripe, but only to buy the $29.99 Agent Phone Plan, not to pay for calls (10 of 40). Per-minute rates for every self-serve plan are public, re-read on 2 November (20). The Start plan needs no card and comes with 2 credits and an inbound number (20). An agent can open an account through the headless flow, with the owner's only step being to relay a 6-digit texted code, or through a device-code flow that sends the owner to a browser (15 of 20). 10 + 20 + 20 + 15 = 65.", "b": "No x402, MPP or L402 (0). No per-session price, but each billed part (STT per hour, TTS per character, LLM per token) is priced publicly (20). On-Demand includes free STT and TTS allowances and lists no payment method, though some premium LLMs need a card on file (20). A person signs up in a browser before a key exists (0). Total 40." }, "scores": { "a": 65, "b": 40 } }, { "by": 21, "category": "security", "leads": "bland-ai", "name": "Security \u0026 auth", "reasons": { "a": "Organisation API keys, several per organisation and each revocable on its own, and since the 1 October check restricted keys with per-resource scopes (`calls:read`, `calls:create`, `agents:write` and others) and OAuth client credentials with the same permissions for short-lived tokens (an organisation that doesn't see OAuth clients in its dashboard is told to contact support). Restricted keys are rolling out by organisation and aren't available on pinned deployments, credited as conditional availability elsewhere in this run (30). A key can now be limited to read scopes, sign-in connections to the MCP server take `mcp:read` or `mcp:write` scopes, and destructive tools carry an annotation for the client's approval prompt. The server no longer asks for confirmation itself, and personas, numbers and tools stay full-access only (15 of 20). Agents read caller speech and transcripts, which are untrusted, and we found guard rails mentioned in the CLI but no prompt-injection guidance (5 of 15). Audit logs exist but are an enterprise function and don't record API key use, and every call has a log; the key list shows who created each key (12 of 15). security.txt valid until 2027-04-05 (re-read on 2 November), a trust portal, SOC 2 Type II and a PCI DSS assessment by a QSA per the vendor, and a disclosure address. No bug bounty found (17 of 20). 30 + 15 + 5 + 12 + 17 = 79.", "b": "Workspace API keys sent as Basic credentials, deleted to revoke, with separate keys per environment advised. The CLI mints read-only keys unless `--write` is given, but write toggles cover only the Voice and Router APIs, so no key is limited to one product. Browsers use short-lived tokens minted server side. Session IDs, not secrets, go in the URL (25 of 30). Tools run in the client, so the developer approves side effects, with no approval step in the API (10 of 20). The agent listens to callers and passes their speech to an LLM, and no prompt-injection guidance was found (5 of 15). Usage per key and a Performance page with errors and throttling (8 of 15). SOC 2 Type II and HIPAA claimed and a vulnerability report form, with no security.txt or bug bounty, per the 4 November reading (10 of 20). Total 58. Zero data retention covers session content from the Developer plan up, but not requests routed to third-party LLM providers." }, "scores": { "a": 79, "b": 58 } }, { "by": 15, "category": "ergonomics", "leads": "inworld-realtime", "name": "Agent ergonomics", "reasons": { "a": "The hosted MCP server lists 62 dedicated tools and 282 API Reference tools, one per reference page, plus 3 prompts on key connections. Sign-in connections see a smaller allowlist, but there are no toolsets or dynamic loading (5 of 25). List endpoints such as audit logs and knowledge bases page and filter, but we found no field selection on call logs (14 of 20). Errors carry codes and readable messages, and a restricted key's 403 names the permission it lacks (16 of 20). Every MCP tool carries a read, write or destructive annotation, but there are no idempotency keys on call creation (10 of 20). A call needs only `phone_number` and a `task`, `agent_id`, `persona_id` or `pathway_id`, with defaults for voice and temperature. Official tooling is the Node CLI, a web SDK and a TTS Node library, and we found no Python SDK (8 of 15). 5 + 14 + 16 + 10 + 8 = 53.", "b": "Scored as an API. Conversation history defaults to the last 100 items, can be trimmed, and can be cached on Anthropic models, and every `response.done` carries a `usage` block (18 of 25). No lists to page. Output controls are modalities, turn detection settings, optional transcription and `response.speak` (12 of 20). Error events follow OpenAI's `type` and `code` shape, unsupported fields come back as non-fatal `unsupported_field` warnings, and `item_not_found` names the bad parameter (14 of 20). Tools run on the client and a follow-up response starts automatically after a tool result. Nothing covers side effects of a tool call cut off by an interruption (12 of 20). Works with OpenAI Realtime clients after changing the URL and key, with no Inworld Realtime SDK (12 of 15). Total 68." }, "scores": { "a": 53, "b": 68 } }, { "by": 9, "category": "transparency", "leads": "bland-ai", "name": "Transparency \u0026 trust", "reasons": { "a": "Closed source with clear terms (15). The privacy policy (last updated 23 June 2026) keeps data 'as long as necessary' with no periods for recordings or transcripts, and the trust page says zero-retention processing is available. The terms and the privacy policy both name Intelliga Corporation, doing business as Bland AI (12 of 30). The December 2025 price change was announced with a date and transition credits, and the migration from pathways and personas to agents carries a 15 November 2026 deadline in the docs, but we found no deprecation policy (8 of 20). A subprocessor list of 17 entries with locations, updated 8 September 2026, per the 1 October check, not re-read on 2 November (20). 15 + 12 + 8 + 20 = 55.", "b": "Closed service with clear terms naming Theai, Inc. dba Inworld AI (15). The ZDR page says what a session keeps and that third-party LLM requests aren't covered, but the terms and privacy notice disagree on training (12 of 30). Release notes flag potentially breaking changes with the clients affected and what to do, without stating a notice period (14 of 20). US headquarters with EU and India residency on Enterprise, and no sub-processor list in the docs, while sessions may route to third-party LLM providers (10 of 20). Total 51." }, "scores": { "a": 72, "b": 63 } }, { "by": 8, "category": "schema", "leads": "bland-ai", "name": "Schema \u0026 documentation", "reasons": { "a": "No OpenAPI document found. The MCP server's dedicated tools take typed inputs and its API Reference tools take each reference page's parameters, but no machine-readable contract is published (5 of 25). llms.txt with 551 entries, each page served as Markdown (10). MCP tool descriptions say when to use a tool, for example the reference tells agents to use `send_call` and to choose one of `agent_id`, `persona_id`, `pathway_id` or `task` (14 of 20). The REST reference types every parameter with enums and defaults, though pathways travel as a raw graph and `call_bland_api` is a free-form passthrough (11 of 15). Errors for 400, 401, 402, 403, 404, 429 and 500 are documented with example messages (13 of 15). Versioned v1 and v2 APIs, agent versions and environments, and a dated changelog (15). 5 + 10 + 14 + 11 + 13 + 15 = 68.", "b": "No AsyncAPI or other machine-readable file for the socket, and the spec paths redirect (0). llms.txt, Markdown twins and a docs MCP server (10). The overview, OpenAI migration guide, `providerData` reference and the billing page's account of how a session is counted say what to use when (16 of 20). The reference lists every client and server event with field types and required marks, as text rather than a schema (12 of 15). JavaScript and Python example projects and an error event with `type`, `code` and `param`, without a list of codes (9 of 15). Dated release notes with affected clients and required actions, but no API version beyond `/v1` (13 of 15). Total 60." }, "scores": { "a": 68, "b": 60 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Bland AI", "b": "Inworld AI", "name": "Vendor" }, { "a": "https://api.bland.ai/v1", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "websocket, HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Pay per use", "name": "Pricing" }, { "a": "$29.99 per month (plan)", "b": "$25 per 1M characters", "name": "Price for voice agents" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "42", "b": "0", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-13", "b": "2026-10-16", "name": "Last release" }, { "a": "2026-08-28", "b": "2025-06-11", "name": "Terms last updated" }, { "a": "2026-06-23", "b": "2026-01-18", "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": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "not found in the text", "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": "1.2k npm/wk", "b": "none", "name": "Popularity" }, { "a": "3/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Bland AI API + MCP scores 67 (B) on agent readiness against Inworld Realtime API's 60.1 (C), and leads in 5 of 7 scored categories. Inworld Realtime API leads on agent ergonomics.", "question": "Which is better for AI agents, Bland AI API + MCP or Inworld Realtime API?" }, { "answer": "Both need an API key.", "question": "Do Bland AI API + MCP and Inworld Realtime API need an API key?" }, { "answer": "Bland AI API + MCP has a hosted endpoint at https://api.bland.ai/v1. No hosted endpoint is listed for Inworld Realtime API.", "question": "Can an agent call Bland AI API + MCP and Inworld Realtime API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 68 against 60", "Security \u0026 auth, 79 against 58", "Payments \u0026 pricing, 65 against 40", "Transparency \u0026 trust, 72 against 63" ], "also": [ "A hosted endpoint, with nothing to install", "Runs on your own machine", "Free to start without a card" ], "goodFor": "Teams that want one predictable per-minute bill for outbound and inbound phone agents, and personal agents that need their own US number.", "slug": "bland-ai", "watchFor": "No OpenAPI document" }, { "aheadOn": [ "Agent ergonomics, 68 against 53" ], "also": null, "goodFor": "Teams moving off OpenAI's Realtime API who want a choice of LLM and Inworld voices.", "slug": "inworld-realtime", "watchFor": "No per-minute price. A session's cost depends on STT, LLM tokens and TTS characters, and interrupted segments are still billed" } ], "history": { "bland-ai": [ { "causes": [ "product" ], "date": "2026-11-02", "delta": 3.1, "from": 63.9, "fromGrade": "B", "to": 67, "toGrade": "B" }, { "causes": [ "evidence" ], "date": "2026-10-27", "delta": 0.1, "from": 63.8, "fromGrade": "B", "to": 63.9, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-08", "delta": -0.3, "from": 64.1, "fromGrade": "B", "to": 63.8, "toGrade": "B" } ], "inworld-realtime": null }, "job": { "capability": "voice.agent", "name": "Voice agents" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-nova-sonic-vs-bland-ai.json", "title": "Amazon Nova 2 Sonic vs Bland AI API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-nova-sonic-vs-bland-ai" }, { "json": "https://www.anchorterminal.com/compare/amazon-nova-sonic-vs-inworld-realtime.json", "title": "Amazon Nova 2 Sonic vs Inworld Realtime API", "url": 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"https://www.anchorterminal.com/compare/inworld-realtime-vs-synthflow.json", "title": "Inworld Realtime API vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-synthflow" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-ultravox.json", "title": "Inworld Realtime API vs Ultravox Realtime API", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-ultravox" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vaani-voice.json", "title": "Inworld Realtime API vs Vaani Developer Platform", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vaani-voice" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vapi.json", "title": "Inworld Realtime API vs Vapi API + MCP", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vapi" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vocily.json", "title": "Inworld Realtime API vs Vocily AI", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vogent.json", "title": "Inworld Realtime API vs Vogent API", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-vogent" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-cuelight.json", "title": "Bland AI API + MCP vs CueLight", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-cuelight" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-pipecat-phonellm.json", "title": "Bland AI API + MCP vs Pipecat PhoneLLM", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-pipecat-phonellm" }, { "json": "https://www.anchorterminal.com/compare/cuelight-vs-inworld-realtime.json", "title": "CueLight vs Inworld Realtime API", "url": "https://www.anchorterminal.com/compare/cuelight-vs-inworld-realtime" }, { "json": "https://www.anchorterminal.com/compare/inworld-realtime-vs-pipecat-phonellm.json", "title": "Inworld Realtime API vs Pipecat PhoneLLM", "url": "https://www.anchorterminal.com/compare/inworld-realtime-vs-pipecat-phonellm" } ], "panel": null, "scores": [ { "bland-ai": 65, "by": 3, "edge": "bland-ai", "inworld-realtime": 62, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "bland-ai": 68, "by": 8, "edge": "bland-ai", "inworld-realtime": 60, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "bland-ai": 53, "by": 15, "edge": "inworld-realtime", "inworld-realtime": 68, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "bland-ai": 79, "by": 21, "edge": "bland-ai", "inworld-realtime": 58, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "bland-ai": 65, "by": 25, "edge": "bland-ai", "inworld-realtime": 40, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "bland-ai": 70, "by": 1, "edge": "inworld-realtime", "inworld-realtime": 71, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "bland-ai": 72, "by": 9, "edge": "bland-ai", "inworld-realtime": 63, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Bland AI API + MCP scores 67 (B) on agent readiness against Inworld Realtime API's 60.1 (C), and leads in 5 of 7 scored categories. Inworld Realtime API leads on agent ergonomics. Both do voice agents.", "tasks": null, "tutorials": [], "verdicts": { "bland-ai": "One per-minute rate covering STT, LLM, TTS and telephony, $0.14 on Start and $0.12 on Build, and restricted keys with per-resource scopes rolling out. No OpenAPI document, the MCP server lists over 340 tools without toolsets, and the product changelog's newest entry is from 3 August 2026.", "inworld-realtime": "Inworld's Realtime API speaks OpenAI's Realtime protocol over WebSocket or WebRTC, with a choice of LLM, client-side tools and dated release notes. Cost is the sum of STT, LLM and TTS usage with no per-minute price, there is no machine-readable event schema, and status history couldn't be read." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime", "json": "https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime.min.md" }, "markdown": "Bland AI API + MCP scores 67 (B) on agent readiness against Inworld Realtime API's 60.1 (C), and leads in 5 of 7 scored categories. Inworld Realtime API leads on agent ergonomics. Both do voice agents.\n\n- Bland AI API + MCP: grade B, 67/100, rank #342 of 1486. Markdown https://www.anchorterminal.com/tools/bland-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/bland-ai.json\n- Inworld Realtime API: grade C, 60.1/100, rank #668 of 1486. Markdown https://www.anchorterminal.com/tools/inworld-realtime.md · JSON https://www.anchorterminal.com/api/v1/tools/inworld-realtime.json\n- Best conversational voice-agent APIs: https://www.anchorterminal.com/best/voice-agents/index.md\n- All 518 voice agents comparisons: https://www.anchorterminal.com/compare/voice-agents/index.md\n\n## Which one, for what\n\n### Bland AI API + MCP (B)\n\nGood for: Teams that want one predictable per-minute bill for outbound and inbound phone agents, and personal agents that need their own US number.\n\nAhead on:\n- Schema \u0026 documentation, 68 against 60\n- Security \u0026 auth, 79 against 58\n- Payments \u0026 pricing, 65 against 40\n- Transparency \u0026 trust, 72 against 63\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Runs on your own machine\n- Free to start without a card\n\nWatch for: No OpenAPI document\n\n### Inworld Realtime API (C)\n\nGood for: Teams moving off OpenAI's Realtime API who want a choice of LLM and Inworld voices.\n\nAhead on:\n- Agent ergonomics, 68 against 53\n\nWatch for: No per-minute price. A session's cost depends on STT, LLM tokens and TTS characters, and interrupted segments are still billed\n\n\n## Why the edge\n\n### Payments \u0026 pricing: Bland AI API + MCP +25\n\n- Bland AI API + MCP (65): No x402 or L402. The headless signup endpoint answers 402 with a Machine Payments Protocol challenge settled through Stripe, but only to buy the $29.99 Agent Phone Plan, not to pay for calls (10 of 40). Per-minute rates for every self-serve plan are public, re-read on 2 November (20). The Start plan needs no card and comes with 2 credits and an inbound number (20). An agent can open an account through the headless flow, with the owner's only step being to relay a 6-digit texted code, or through a device-code flow that sends the owner to a browser (15 of 20). 10 + 20 + 20 + 15 = 65.\n- Inworld Realtime API (40): No x402, MPP or L402 (0). No per-session price, but each billed part (STT per hour, TTS per character, LLM per token) is priced publicly (20). On-Demand includes free STT and TTS allowances and lists no payment method, though some premium LLMs need a card on file (20). A person signs up in a browser before a key exists (0). Total 40.\n\n### Security \u0026 auth: Bland AI API + MCP +21\n\n- Bland AI API + MCP (79): Organisation API keys, several per organisation and each revocable on its own, and since the 1 October check restricted keys with per-resource scopes (`calls:read`, `calls:create`, `agents:write` and others) and OAuth client credentials with the same permissions for short-lived tokens (an organisation that doesn't see OAuth clients in its dashboard is told to contact support). Restricted keys are rolling out by organisation and aren't available on pinned deployments, credited as conditional availability elsewhere in this run (30). A key can now be limited to read scopes, sign-in connections to the MCP server take `mcp:read` or `mcp:write` scopes, and destructive tools carry an annotation for the client's approval prompt. The server no longer asks for confirmation itself, and personas, numbers and tools stay full-access only (15 of 20). Agents read caller speech and transcripts, which are untrusted, and we found guard rails mentioned in the CLI but no prompt-injection guidance (5 of 15). Audit logs exist but are an enterprise function and don't record API key use, and every call has a log; the key list shows who created each key (12 of 15). security.txt valid until 2027-04-05 (re-read on 2 November), a trust portal, SOC 2 Type II and a PCI DSS assessment by a QSA per the vendor, and a disclosure address. No bug bounty found (17 of 20). 30 + 15 + 5 + 12 + 17 = 79.\n- Inworld Realtime API (58): Workspace API keys sent as Basic credentials, deleted to revoke, with separate keys per environment advised. The CLI mints read-only keys unless `--write` is given, but write toggles cover only the Voice and Router APIs, so no key is limited to one product. Browsers use short-lived tokens minted server side. Session IDs, not secrets, go in the URL (25 of 30). Tools run in the client, so the developer approves side effects, with no approval step in the API (10 of 20). The agent listens to callers and passes their speech to an LLM, and no prompt-injection guidance was found (5 of 15). Usage per key and a Performance page with errors and throttling (8 of 15). SOC 2 Type II and HIPAA claimed and a vulnerability report form, with no security.txt or bug bounty, per the 4 November reading (10 of 20). Total 58. Zero data retention covers session content from the Developer plan up, but not requests routed to third-party LLM providers.\n\n### Agent ergonomics: Inworld Realtime API +15\n\n- Bland AI API + MCP (53): The hosted MCP server lists 62 dedicated tools and 282 API Reference tools, one per reference page, plus 3 prompts on key connections. Sign-in connections see a smaller allowlist, but there are no toolsets or dynamic loading (5 of 25). List endpoints such as audit logs and knowledge bases page and filter, but we found no field selection on call logs (14 of 20). Errors carry codes and readable messages, and a restricted key's 403 names the permission it lacks (16 of 20). Every MCP tool carries a read, write or destructive annotation, but there are no idempotency keys on call creation (10 of 20). A call needs only `phone_number` and a `task`, `agent_id`, `persona_id` or `pathway_id`, with defaults for voice and temperature. Official tooling is the Node CLI, a web SDK and a TTS Node library, and we found no Python SDK (8 of 15). 5 + 14 + 16 + 10 + 8 = 53.\n- Inworld Realtime API (68): Scored as an API. Conversation history defaults to the last 100 items, can be trimmed, and can be cached on Anthropic models, and every `response.done` carries a `usage` block (18 of 25). No lists to page. Output controls are modalities, turn detection settings, optional transcription and `response.speak` (12 of 20). Error events follow OpenAI's `type` and `code` shape, unsupported fields come back as non-fatal `unsupported_field` warnings, and `item_not_found` names the bad parameter (14 of 20). Tools run on the client and a follow-up response starts automatically after a tool result. Nothing covers side effects of a tool call cut off by an interruption (12 of 20). Works with OpenAI Realtime clients after changing the URL and key, with no Inworld Realtime SDK (12 of 15). Total 68.\n\n### Transparency \u0026 trust: Bland AI API + MCP +9\n\n- Bland AI API + MCP (72): Closed source with clear terms (15). The privacy policy (last updated 23 June 2026) keeps data 'as long as necessary' with no periods for recordings or transcripts, and the trust page says zero-retention processing is available. The terms and the privacy policy both name Intelliga Corporation, doing business as Bland AI (12 of 30). The December 2025 price change was announced with a date and transition credits, and the migration from pathways and personas to agents carries a 15 November 2026 deadline in the docs, but we found no deprecation policy (8 of 20). A subprocessor list of 17 entries with locations, updated 8 September 2026, per the 1 October check, not re-read on 2 November (20). 15 + 12 + 8 + 20 = 55.\n- Inworld Realtime API (63): Closed service with clear terms naming Theai, Inc. dba Inworld AI (15). The ZDR page says what a session keeps and that third-party LLM requests aren't covered, but the terms and privacy notice disagree on training (12 of 30). Release notes flag potentially breaking changes with the clients affected and what to do, without stating a notice period (14 of 20). US headquarters with EU and India residency on Enterprise, and no sub-processor list in the docs, while sessions may route to third-party LLM providers (10 of 20). Total 51.\n\n### Schema \u0026 documentation: Bland AI API + MCP +8\n\n- Bland AI API + MCP (68): No OpenAPI document found. The MCP server's dedicated tools take typed inputs and its API Reference tools take each reference page's parameters, but no machine-readable contract is published (5 of 25). llms.txt with 551 entries, each page served as Markdown (10). MCP tool descriptions say when to use a tool, for example the reference tells agents to use `send_call` and to choose one of `agent_id`, `persona_id`, `pathway_id` or `task` (14 of 20). The REST reference types every parameter with enums and defaults, though pathways travel as a raw graph and `call_bland_api` is a free-form passthrough (11 of 15). Errors for 400, 401, 402, 403, 404, 429 and 500 are documented with example messages (13 of 15). Versioned v1 and v2 APIs, agent versions and environments, and a dated changelog (15). 5 + 10 + 14 + 11 + 13 + 15 = 68.\n- Inworld Realtime API (60): No AsyncAPI or other machine-readable file for the socket, and the spec paths redirect (0). llms.txt, Markdown twins and a docs MCP server (10). The overview, OpenAI migration guide, `providerData` reference and the billing page's account of how a session is counted say what to use when (16 of 20). The reference lists every client and server event with field types and required marks, as text rather than a schema (12 of 15). JavaScript and Python example projects and an error event with `type`, `code` and `param`, without a list of codes (9 of 15). Dated release notes with affected clients and required actions, but no API version beyond `/v1` (13 of 15). Total 60.\n\n## Score by category\n\n| Category | Weight | Bland AI API + MCP | Inworld Realtime API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 62 | Bland AI API + MCP +3 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 68 | 60 | Bland AI API + MCP +8 |\n| Agent ergonomics | 13% (16.2 this run) | 53 | 68 | Inworld Realtime API +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 79 | 58 | Bland AI API + MCP +21 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 65 | 40 | Bland AI API + MCP +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 71 | Inworld Realtime API +1 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 72 | 63 | Bland AI API + MCP +9 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **67 · B** | **60.1 · C** | |\n\n## Facts side by side\n\n| Fact | Bland AI API + MCP | Inworld Realtime API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Bland AI | Inworld AI |\n| Hosted endpoint | `https://api.bland.ai/v1` | no (local only) |\n| Transports | HTTP, Streamable HTTP, stdio | websocket, HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Pay per use |\n| Price for voice agents | $29.99 per month (plan) | $25 per 1M characters |\n| x402 | no | no |\n| Tools exposed | 42 | 0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-13 | 2026-10-16 |\n| Terms last updated | 2026-08-28 | 2025-06-11 |\n| Privacy policy last updated | 2026-06-23 | 2026-01-18 |\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 | not found in the text |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 1.2k npm/wk | none |\n| Agent reviews | 3/5 (2) | none |\n\n## How the scores have moved\n\n### Bland AI API + MCP\n\n- +3.1 on 2 November 2026: product\n- +0.1 on 27 October 2026: new evidence\n- -0.3 on 8 October 2026: checklist\n\n### Inworld Realtime API\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Bland AI API + MCP.** One per-minute rate covering STT, LLM, TTS and telephony, $0.14 on Start and $0.12 on Build, and restricted keys with per-resource scopes rolling out. No OpenAPI document, the MCP server lists over 340 tools without toolsets, and the product changelog's newest entry is from 3 August 2026.\n\n**Inworld Realtime API.** Inworld's Realtime API speaks OpenAI's Realtime protocol over WebSocket or WebRTC, with a choice of LLM, client-side tools and dated release notes. Cost is the sum of STT, LLM and TTS usage with no per-minute price, there is no machine-readable event schema, and status history couldn't be read.\n\n## Before you call either\n\n### Bland AI API + MCP\n\n1. Call `wait_for_call` (it waits up to 45 seconds) instead of polling `get_call_log`\n2. Keep client tool-approval prompts on for destructive MCP tools; the server no longer asks for confirmation\n3. Space calls to the same number at least 10 seconds apart or expect a 429\n4. Budget $0.015 for every outbound attempt, including ones that never connect\n5. Use a restricted key with only the scopes you need for REST calls; the MCP server needs a full-access key or sign-in\n\n### Inworld Realtime API\n\n1. Set the auto follow-up off if your client sends its own `response.create` after a tool result, or replies double\n2. Read `response.done` usage as an estimate and mute input audio when nobody speaks, since STT bills every second sent\n3. Use `response.speak` for fixed greetings, which skips the LLM\n4. Treat `unsupported_field` errors as warnings and keep the session open\n5. Mint browser session tokens on your server and never ship the Basic credential to a client\n\n## Questions\n\n### Which is better for AI agents, Bland AI API + MCP or Inworld Realtime API?\n\nBland AI API + MCP scores 67 (B) on agent readiness against Inworld Realtime API's 60.1 (C), and leads in 5 of 7 scored categories. Inworld Realtime API leads on agent ergonomics.\n\n### Do Bland AI API + MCP and Inworld Realtime API need an API key?\n\nBoth need an API key.\n\n### Can an agent call Bland AI API + MCP and Inworld Realtime API without installing anything?\n\nBland AI API + MCP has a hosted endpoint at https://api.bland.ai/v1. No hosted endpoint is listed for Inworld Realtime API.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bland-ai-vs-inworld-realtime.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"bland-ai\", \"b\": \"inworld-realtime\"}`. From a terminal: `anchor compare bland-ai inworld-realtime`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bland-ai.json and https://www.anchorterminal.com/api/v1/tools/inworld-realtime.json\n\n## Other comparisons with Bland AI API + MCP or Inworld Realtime API\n\n- [Amazon Nova 2 Sonic vs Bland AI API + MCP](https://www.anchorterminal.com/compare/amazon-nova-sonic-vs-bland-ai.md)\n- [Amazon Nova 2 Sonic vs Inworld Realtime API](https://www.anchorterminal.com/compare/amazon-nova-sonic-vs-inworld-realtime.md)\n- [AssemblyAI Voice Agent API vs Bland AI API + MCP](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-bland-ai.md)\n- [AssemblyAI Voice Agent API vs Inworld Realtime API](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-inworld-realtime.md)\n- [Bland AI API + MCP vs Bolna API + MCP](https://www.anchorterminal.com/compare/bland-ai-vs-bolna.md)\n- [Bland AI API + MCP vs Deepgram Voice Agent 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API](https://www.anchorterminal.com/compare/hume-evi-vs-inworld-realtime.md)\n- [Inworld Realtime API vs LiveKit Agents](https://www.anchorterminal.com/compare/inworld-realtime-vs-livekit-agents.md)\n- [Inworld Realtime API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/inworld-realtime-vs-openai-realtime.md)\n- [Inworld Realtime API vs Pipecat](https://www.anchorterminal.com/compare/inworld-realtime-vs-pipecat.md)\n- [Inworld Realtime API vs PlaceCall](https://www.anchorterminal.com/compare/inworld-realtime-vs-placecall.md)\n- [Inworld Realtime API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/inworld-realtime-vs-retell-ai.md)\n- [Inworld Realtime API vs Rime Prism](https://www.anchorterminal.com/compare/inworld-realtime-vs-rime-prism.md)\n- [Inworld Realtime API vs Synthflow API + MCP](https://www.anchorterminal.com/compare/inworld-realtime-vs-synthflow.md)\n- [Inworld Realtime API vs Ultravox Realtime 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