{ "data": { "a": { "slug": "bolna", "name": "Bolna API + MCP", "vendor": "Bolna", "vendorUrl": "https://www.bolna.ai", "kind": "http-api", "category": "voice-agents", "summary": "Voice-agent platform built for Indian languages and phone campaigns.", "url": "https://www.anchorterminal.com/tools/bolna", "markdownUrl": "https://www.anchorterminal.com/tools/bolna.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/bolna.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/bolna.json", "repo": "https://github.com/bolna-ai/bolna", "license": "MIT", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.bolna.ai", "packages": [ { "registry": "pypi", "name": "bolna" }, { "registry": "npm", "name": "@bolna/web-call" } ], "auth": "api-key", "authNotes": "Bearer API key (`bn-...`, or `sa-...` for a sub-account) from the dashboard, shown once and stored hashed. The hosted MCP at `https://mcp.bolna.ai/api/mcp` takes the same key as a Bearer header, and every MCP tool accepts an `api_key` argument to act as a sub-account. The Web Call SDK mints single-use browser sessions that expire in about 120 seconds, so the key stays server-side. Webhooks and tool calls carry no signature. Bolna says to allowlist its 3 source IPs instead.", "pricing": "usage", "pricingNotes": "Prepaid wallet from $10 to $5,000 with $5 free credit at signup. Standard rate $0.06 a minute (₹5.52) covers Voice AI on the preferred STT, LLM and TTS models, falling to about $0.045 on larger top-ups. Telephony and a Bolna platform fee are billed on top, and non-preferred models are billed per use. Pilot plans are one-off, $300 for 6,500 minutes or $500 for 12,000 minutes, billed in 30-second pulses with 25 concurrent calls. Bringing your own STT, LLM and TTS keys leaves only the platform fee and telephony. Enterprise is custom (https://www.bolna.ai/pricing).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 support in the docs, pricing page or MCP docs (checked 2026-09-30).", "endpoints": [] }, "toolCount": 84, "popularity": { "githubStars": 779, "npmWeekly": 579, "pypiWeekly": 2601, "asOf": "2026-09-30" }, "docsUrl": "https://www.bolna.ai/docs", "llmsTxt": "https://www.bolna.ai/docs/llms.txt", "capabilities": [ "voice.agent", "voice.pipeline", "voice.speech-to-speech", "voice.tools", "voice.telephony" ], "tags": [ "hosted", "open-source", "self-hosted", "mcp", "llms-txt", "python", "typescript", "webhooks", "pipeline", "speech-to-speech", "enterprise" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 52.6, "grade": "D", "agentReady": false, "rank": 561, "ranked": true, "rankOf": 722, "categoryRank": 9, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 52, "maintenance": 76, "payments": 30, "reliability": 50, "schema": 63, "security": 44, "transparency": 66 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Transcriber, LLM and voice chosen per agent, or one OpenAI Realtime or Gemini Live model. Unsigned webhooks and tool calls, IP allowlisting only.", "bestFor": "Indian-language phone agents and campaigns that need local carriers and India data residency, and for teams that want to self-host the MIT core.", "strengths": [ "Transcriber, LLM and voice chosen per agent, or one OpenAI Realtime or Gemini Live model", "Indian telephony through Plivo, Exotel and Vobiz, with an India data-residency option in ap-south-1", "Hosted MCP server with 84 tools, 23 of them carrying `destructiveHint`", "MIT-licensed core framework, released to PyPI almost daily", "Published per-endpoint rate limits with 429 and backoff guidance" ], "weaknesses": [ "Unsigned webhooks and tool calls, IP allowlisting only", "No security.txt, bug bounty or SOC 2 claim found", "The OpenAPI link in llms.txt returns 404", "Telephony and platform fees aren't priced on the pricing page", "Terms and privacy policy name different legal entities" ], "agentNotes": [ "Wait for the `completed` execution status, not `call-disconnected`, before reading cost, recording or extracted data", "Send `scheduled_at` with a numeric offset such as `+00:00`, since a `Z` suffix returns 500", "Back off exponentially on 429, the limit on `/call` is 500 requests a minute", "Reject webhook and tool requests that don't come from 13.203.39.153, 13.126.9.249 or 13.202.133.53", "Leave the MCP `api_key` argument empty unless acting as a sub-account, so the key stays out of the transcript" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 52.6 } ], "editorialScores": { "ergonomics": 52, "maintenance": 76, "payments": 30, "reliability": 50, "schema": 63, "security": 44, "transparency": 57 }, "provenanceScore": 75 }, "connect": { "http": "curl -X POST https://api.bolna.ai/call -H \"Authorization: Bearer $BOLNA_API_KEY\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"agent_id\":\"123e4567-e89b-12d3-a456-426655440000\",\"recipient_phone_number\":\"+919876543210\"}'", "claudeCode": "claude mcp add --transport http bolna https://mcp.bolna.ai/api/mcp --header \"Authorization: Bearer $BOLNA_API_KEY\"", "config": { "mcpServers": { "bolna": { "args": [ "-y", "mcp-remote", "https://mcp.bolna.ai/api/mcp", "--header", "Authorization: Bearer ${BOLNA_API_KEY}" ], "command": "npx" } } } }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/bolna" }, "area": "voice", "unitPrices": [ { "item": "Standard rate, preferred models", "unit": "call-minute", "usd": 0.06, "note": "Voice AI only, telephony and platform fee extra" }, { "item": "Pilot plan, 12,000 minutes", "unit": "call-minute", "usd": 0.042, "note": "one-off $500, 25 concurrent calls" }, { "item": "Pilot plan, 6,500 minutes", "unit": "call-minute", "usd": 0.046, "note": "one-off $300" } ], "provenance": { "legalEntity": "Voxlabs Private Limited", "domain": "bolna.ai", "domainRegistered": "2024-09-27", "domainNote": "The registry date is later than Bolna's first PyPI release (2024-01-01), so the domain was probably re-registered. Support mail also uses bolna.dev.", "endpointOnVendorDomain": true, "terms": "https://www.bolna.ai/terms-of-service", "privacy": "https://www.bolna.ai/privacy-policy", "statusPage": "https://status.bolna.ai", "changelog": "https://www.bolna.ai/docs/changelog", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The terms name Voxlabs Private Limited, operating as Bolna. The privacy policy (updated 2025-03-28) and the site footer name Whismurwave Inc." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/bolna.json", "live": { "slug": "bolna", "probe": { "target": "https://api.bolna.ai", "method": "get", "lastAt": "2026-10-08T19:52:46.537986197Z", "lastOk": true, "lastStatus": 404, "lastMs": 756, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 744, "p95ms24h": 829, "samples24h": 272, "samples30d": 2143, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 225, "ok": 225 } ] }, "vendorStatus": { "page": "https://status.bolna.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-08T19:38:17.66123943Z" }, "versions": [ { "registry": "github", "name": "bolna-ai/bolna", "version": "0.10.280", "released": "2026-10-08", "seenAt": "2026-10-08T16:03:13.165039734Z" }, { "registry": "npm", "name": "@bolna/web-call", "version": "3.0.1", "seenAt": "2026-10-08T16:03:08.904105759Z" }, { "registry": "pypi", "name": "bolna", "version": "0.10.280", "released": "2026-10-08", "seenAt": "2026-10-08T16:03:05.808862194Z" } ], "githubStars": 786, "npmWeekly": 318, "pypiWeekly": 2723, "securityTxt": { "url": "https://bolna.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:43.589280325Z" }, "llmsTxt": { "url": "https://www.bolna.ai/docs/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:08.782915606Z" }, "domain": { "domain": "bolna.ai", "registered": "2024-09-27", "source": "https://rdap.identitydigital.services/rdap/domain/bolna.ai", "checkedAt": "2026-10-04T13:07:18.917906737Z" }, "pages": [ { "url": "https://www.bolna.ai/docs/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:26:37.791224417Z", "changedAt": "2026-10-08T18:26:37.791224417Z", "fingerprint": "e86241a07812" }, { "url": "https://www.bolna.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:26:40.317117734Z", "changedAt": "2026-10-08T18:26:40.317117734Z", "fingerprint": "fa31e090be77" }, { "url": "https://www.bolna.ai/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:26:41.839532647Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "0f8133e9e865" }, { "url": "https://www.bolna.ai/terms-of-service", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:26:43.971285827Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "561e3b6c9a44" } ], "updatedAt": "2026-10-08T19:52:46.537986197Z" } }, "answer": "Vocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust.", "b": { "slug": "vocily", "name": "Vocily AI", "vendor": "Vocily AI Private Limited", "vendorUrl": "https://vocily.ai", "kind": "http-api", "category": "voice-agents", "summary": "Vocily AI is a hosted voice-agent platform from Bengaluru for phone calls, WhatsApp and website voice and chat, aimed at Indian languages. Its REST API builds and publishes agents, places outbound calls and reads back transcripts, recordings and costs.", "url": "https://www.anchorterminal.com/tools/vocily", "markdownUrl": "https://www.anchorterminal.com/tools/vocily.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/vocily.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/vocily.json", "license": "Proprietary service under Vocily's terms of service. No open-source code or published package was found", "transports": [ "http" ], "remoteUrl": "https://api.vocily.ai", "packages": [], "auth": "api-key", "authNotes": "A Bearer API key (`vk_...`) created in the dashboard under Developers, API Keys, shown once and revocable there. A key is bound to one workspace and reaches the whole public API for it. Billing, team members, account settings and key management answer 403 to any key. Keys have no scopes to configure, although the error table names an `agents:publish` permission for making a version live. Webhooks are signed with HMAC-SHA256 and a timestamp, with two signatures sent during a secret rotation. Access is self-serve after an email-verified signup.", "pricing": "usage", "pricingNotes": "Prepaid wallet with no monthly fee, billed in rupees or US dollars as chosen at signup, each with its own price list. Voice starts at ₹3.10 or $0.041 a connected minute (speech-to-text, model, voice and a $0.03 platform fee), and telephony is free on your own Plivo or VoBiz account or $0.004 a minute in 30-second pulses on a rented number. Chat is charged per model reply from $0.001. A new organisation gets ₹200 or $2 of credit with no card. Ten concurrent calls are included and a pack of two more is $8 a month (https://vocily.ai/pricing).", "priceSummary": "$8 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs, the OpenAPI file or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://docs.vocily.ai", "llmsTxt": "https://docs.vocily.ai/llms.txt", "openapi": "https://docs.vocily.ai/developers/openapi.json", "capabilities": [ "voice.agent", "voice.pipeline", "voice.tools", "voice.telephony" ], "tags": [ "hosted", "india", "openapi", "llms-txt", "webhooks", "pipeline", "telephony", "whatsapp", "prepaid", "new" ], "lastRelease": "2026-09-30", "graded": true, "anchor": { "graded": true, "score": 53.8, "grade": "D", "agentReady": false, "rank": 540, "ranked": true, "rankOf": 722, "categoryRank": 8, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 84, "maintenance": 61, "payments": 40, "reliability": 40, "schema": 90, "security": 46, "transparency": 47 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": -5, "negativeNotes": [ "2026-09-23 and 2026-09-25, -3. Two releases removed fields and routes under `/v1` with no notice period, including `tools` on the agent body, `call_type`, `?skip=` and `?offset=`, and the `/widgets` collection routes. The 23 September note says there is no window in which both shapes work. The API reference says fields are never removed or renamed within a version. Documented the same day with migration tables, so the deduction is reduced (https://docs.vocily.ai/developers/changes.md)", "2026-10-08, -2. The developer page on the marketing site lists Fern-generated Python and TypeScript SDKs, an MCP server, API key routes with rotation, webhook endpoint routes, `POST /v1/agents/{id}/chat` and events such as `transcript.ready`. The docs and the OpenAPI file have none of these, keys and webhook endpoints are dashboard-only, and no package was found on npm or PyPI (https://vocily.ai/platform/api-tools and https://docs.vocily.ai/developers/api-reference.md)" ], "verdict": "The REST API is documented in detail for a product a few months old, with an OpenAPI 3.1 file, required idempotency keys on calls, a Retry-After header on 429 and signed webhooks. No status page, SLA, SDK or security programme was found, and two releases in September 2026 removed fields under `/v1` on the day they were announced.", "bestFor": "Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing.", "strengths": [ "OpenAPI 3.1 file with 54 operations, plus llms.txt and a Markdown copy of every docs page", "`POST /v1/calls` requires an `Idempotency-Key`, and a retry returns the original call", "429 responses carry `Retry-After` and `X-RateLimit` headers, with a published limit of 300 requests a minute per key", "Webhooks are signed with HMAC-SHA256 and a timestamp, with a five-minute replay window", "Every component price is public in rupees and US dollars, and signup credit needs no card" ], "weaknesses": [ "No status page, incident history or SLA was found", "Fields and routes were removed under `/v1` on 23 and 25 September 2026 on the day of the announcement", "The marketing site lists SDKs, an MCP server and key management endpoints that the docs don't have", "No security.txt, disclosure policy, bug bounty or certification was found", "The terms and privacy policy name no legal entity, sub-processor or retention period" ], "agentNotes": [ "Send a fresh UUID in `Idempotency-Key` on every `POST /v1/calls`. The API refuses the request without it", "Pass a `from_number` the workspace holds. The shared Test Number returns 403 from the API", "Publish a version and make it live before placing a call, or the call returns 409 `agent_not_published`", "Branch on `detail.code`, falling back to the top-level `code`. A 429 body is flat, so read `Retry-After`", "Read `currency` on every call and chat record. Costs are in rupees or dollars depending on the organisation" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.8 } ], "editorialScores": { "ergonomics": 84, "maintenance": 61, "payments": 40, "reliability": 40, "schema": 90, "security": 46, "transparency": 34 }, "provenanceScore": 59 }, "connect": { "http": "curl https://api.vocily.ai/v1/agents \\\n -H \"Authorization: Bearer vk_your_key_here\"" }, "letme": { "capability": "https://letme.dev/voice.agent", "tool": "https://letme.dev/vocily" }, "area": "voice", "unitPrices": [ { "item": "Voice, lowest-priced configuration", "unit": "call-minute", "usd": 0.041, "note": "Soniox, GPT-5 Nano, Vocily voice and the $0.03 platform fee. ₹3.10 for a rupee organisation. Telephony extra on a rented number" }, { "item": "Telephony on a number rented from Vocily", "unit": "call-minute", "usd": 0.004, "note": "billed in 30-second pulses, doubled while a transfer is connected. Free on your own carrier account" }, { "item": "Web chat or WhatsApp AI reply, GPT-5 Nano", "unit": "message", "usd": 0.001, "note": "per model reply, up to $0.02 on GPT-5.6 Terra" }, { "item": "WhatsApp utility template, platform fee", "unit": "message", "usd": 0.0004, "note": "Meta's own charges are paid to Meta separately" }, { "item": "Capacity pack, two more concurrent calls", "unit": "month", "usd": 8, "note": "ten concurrent calls are included at no monthly fee" }, { "item": "Rented Indian phone number", "unit": "month", "usd": 5, "note": "₹499 for a rupee organisation" } ], "provenance": { "legalEntity": "VOCILY AI PRIVATE LIMITED", "domain": "vocily.ai", "domainRegistered": "2026-07-12", "domainNote": "RDAP for vocily.ai gives a registration date of 2026-07-12 and VOCILY AI PRIVATE LIMITED as registrant. vocily.com was registered on 2026-01-27 through Squarespace Domains with no registrant shown, and it redirects to vocily.ai. app.vocily.com, which the site links, redirects to app.vocily.ai.", "endpointOnVendorDomain": true, "terms": "https://vocily.ai/terms", "privacy": "https://vocily.ai/privacy", "statusPage": "", "changelog": "https://docs.vocily.ai/developers/changes", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms (last updated 10 June 2026) and the privacy policy (last updated 3 September 2026) refer only to Vocily and name no legal entity, address or governing law. The site footer says Vocily AI, Bengaluru, India. The legal name comes from the registrant field of the vocily.ai domain record.", "The website, the docs (docs.vocily.ai), the API (api.vocily.ai) and the app (app.vocily.ai) are all on vocily.ai. https://vocily.com answers 307 to https://vocily.ai/ and https://app.vocily.com answers 308 to https://app.vocily.ai/.", "No status page was found. status.vocily.ai doesn't resolve and neither the site nor the docs link one.", "https://vocily.ai/.well-known/security.txt and https://vocily.ai/security.txt return 404. The only contact given in the terms and privacy policy is founder@vocily.ai.", "The terms still describe the service as possibly in beta or pre-launch and say paid plans may be introduced later, while the pricing page lists live prices." ], "score": 59 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/vocily.json", "live": { "slug": "vocily", "probe": { "target": "https://api.vocily.ai", "method": "get", "lastAt": "2026-10-08T19:53:06.008514014Z", "lastOk": true, "lastStatus": 200, "lastMs": 554, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 572, "p95ms24h": 651, "samples24h": 27, "samples30d": 27, "days": [ { "date": "2026-10-08", "probes": 27, "ok": 27 } ] }, "pages": [ { "url": "https://docs.vocily.ai/developers/changes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:19:44.077645596Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "e943bd4b4dc3" }, { "url": "https://vocily.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:25:39.585046142Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "056eb2694b97" }, { "url": "https://vocily.ai/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:25:42.88538991Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "80f0002ad16a" }, { "url": "https://vocily.ai/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:25:43.61244357Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b94cd0abe1e3" } ], "updatedAt": "2026-10-08T19:53:06.008514014Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Bolna", "b": "Vocily AI Private Limited", "name": "Vendor" }, { "a": "https://api.bolna.ai", "b": "https://api.vocily.ai", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "Proprietary service under Vocily's terms of service. No open-source code or published package was found", "name": "Licence" }, { "a": "84", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-29", "b": "2026-09-30", "name": "Last release" }, { "a": "2026-08-13", "b": "2026-06-10", "name": "Terms last updated" }, { "a": "2025-03-28", "b": "2026-09-03", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "yes", "b": "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": "779 stars, 579 npm/wk, 2.6k PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "2.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Vocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust.", "question": "Which is better for AI agents, Bolna API + MCP or Vocily AI?" }, { "answer": "Both need an API key.", "question": "Do Bolna API + MCP and Vocily AI need an API key?" }, { "answer": "Yes. Bolna API + MCP has a hosted endpoint at https://api.bolna.ai and Vocily AI at https://api.vocily.ai.", "question": "Can an agent call Bolna API + MCP and Vocily AI without installing anything?" }, { "answer": "Bolna API + MCP is open source (MIT). No open-source release is listed for Vocily AI.", "question": "Are Bolna API + MCP and Vocily AI open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 50 against 40", "Maintenance \u0026 community, 76 against 61", "Transparency \u0026 trust, 66 against 47" ], "also": [ "Open source", "No incidents deducted, where Vocily AI loses 5 points for them" ], "goodFor": "Indian-language phone agents and campaigns that need local carriers and India data residency, and for teams that want to self-host the MIT core.", "slug": "bolna", "watchFor": "Unsigned webhooks and tool calls, IP allowlisting only" }, { "aheadOn": [ "Schema \u0026 documentation, 90 against 63", "Agent ergonomics, 84 against 52", "Payments \u0026 pricing, 40 against 30" ], "also": null, "goodFor": "Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing.", "slug": "vocily", "watchFor": "No status page, incident history or SLA was found" } ], "job": { "capability": "voice.agent", "name": "Voice agent" }, "others": [ { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-bolna.json", "title": "Bland AI API + MCP vs Bolna API + MCP", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-bolna" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-vocily.json", "title": "Bland AI API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-deepgram-voice-agent.json", "title": "Bolna API + MCP vs Deepgram Voice Agent API", "url": "https://www.anchorterminal.com/compare/bolna-vs-deepgram-voice-agent" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-elevenlabs-agents.json", "title": "Bolna API + MCP vs ElevenLabs Agents API + MCP", "url": "https://www.anchorterminal.com/compare/bolna-vs-elevenlabs-agents" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-hume-evi.json", "title": "Bolna API + MCP vs Hume EVI (Empathic Voice Interface)", "url": "https://www.anchorterminal.com/compare/bolna-vs-hume-evi" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-retell-ai.json", "title": "Bolna API + MCP vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/bolna-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-synthflow.json", "title": "Bolna API + MCP vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/bolna-vs-synthflow" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-ultravox.json", "title": "Bolna API + MCP vs Ultravox Realtime API", "url": "https://www.anchorterminal.com/compare/bolna-vs-ultravox" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-vapi.json", "title": "Bolna API + MCP vs Vapi API + MCP", "url": "https://www.anchorterminal.com/compare/bolna-vs-vapi" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-vogent.json", "title": "Bolna API + MCP vs Vogent API", "url": "https://www.anchorterminal.com/compare/bolna-vs-vogent" }, { "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-vocily.json", "title": "Deepgram Voice Agent API vs Vocily AI", "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-vocily.json", "title": "ElevenLabs Agents API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/hume-evi-vs-vocily.json", "title": "Hume EVI (Empathic Voice Interface) vs Vocily AI", "url": "https://www.anchorterminal.com/compare/hume-evi-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/retell-ai-vs-vocily.json", "title": "Retell AI API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/retell-ai-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/synthflow-vs-vocily.json", "title": "Synthflow API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/synthflow-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/ultravox-vs-vocily.json", "title": "Ultravox Realtime API vs Vocily AI", "url": "https://www.anchorterminal.com/compare/ultravox-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/vapi-vs-vocily.json", "title": "Vapi API + MCP vs Vocily AI", "url": "https://www.anchorterminal.com/compare/vapi-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/vocily-vs-vogent.json", "title": "Vocily AI vs Vogent API", "url": "https://www.anchorterminal.com/compare/vocily-vs-vogent" } ], "scores": [ { "bolna": 50, "by": 10, "edge": "bolna", "key": "reliability", "name": "Reliability", "vocily": 40, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "bolna": 63, "by": 27, "edge": "vocily", "key": "schema", "name": "Schema \u0026 documentation", "vocily": 90, "weight": 13 }, { "bolna": 52, "by": 32, "edge": "vocily", "key": "ergonomics", "name": "Agent ergonomics", "vocily": 84, "weight": 13 }, { "bolna": 44, "by": 2, "edge": "vocily", "key": "security", "name": "Security \u0026 auth", "vocily": 46, "weight": 14 }, { "bolna": 30, "by": 10, "edge": "vocily", "key": "payments", "name": "Payments \u0026 pricing", "vocily": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "bolna": 76, "by": 15, "edge": "bolna", "key": "maintenance", "name": "Maintenance \u0026 community", "vocily": 61, "weight": 7 }, { "bolna": 66, "by": 19, "edge": "bolna", "key": "transparency", "name": "Transparency \u0026 trust", "vocily": 47, "weight": 7 } ], "summary": "Vocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do voice agent.", "verdicts": { "bolna": "Transcriber, LLM and voice chosen per agent, or one OpenAI Realtime or Gemini Live model. Unsigned webhooks and tool calls, IP allowlisting only.", "vocily": "The REST API is documented in detail for a product a few months old, with an OpenAPI 3.1 file, required idempotency keys on calls, a Retry-After header on 429 and signed webhooks. No status page, SLA, SDK or security programme was found, and two releases in September 2026 removed fields under `/v1` on the day they were announced." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/bolna-vs-vocily", "json": "https://www.anchorterminal.com/compare/bolna-vs-vocily.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/bolna-vs-vocily.md", "slim": "https://www.anchorterminal.com/compare/bolna-vs-vocily.min.md" }, "markdown": "Vocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do voice agent.\n\n- Bolna API + MCP: grade D, 52.6/100, rank #561 of 722. Markdown https://www.anchorterminal.com/tools/bolna.md · JSON https://www.anchorterminal.com/api/v1/tools/bolna.json\n- Vocily AI: grade D, 53.8/100, rank #540 of 722. Markdown https://www.anchorterminal.com/tools/vocily.md · JSON https://www.anchorterminal.com/api/v1/tools/vocily.json\n\n## Which one, for what\n\n### Bolna API + MCP (D)\n\nGood for: Indian-language phone agents and campaigns that need local carriers and India data residency, and for teams that want to self-host the MIT core.\n\nAhead on:\n- Reliability, 50 against 40\n- Maintenance \u0026 community, 76 against 61\n- Transparency \u0026 trust, 66 against 47\n\nAlso in its favour:\n- Open source\n- No incidents deducted, where Vocily AI loses 5 points for them\n\nWatch for: Unsigned webhooks and tool calls, IP allowlisting only\n\n### Vocily AI (D)\n\nGood for: Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing.\n\nAhead on:\n- Schema \u0026 documentation, 90 against 63\n- Agent ergonomics, 84 against 52\n- Payments \u0026 pricing, 40 against 30\n\nWatch for: No status page, incident history or SLA was found\n\n\n## Score by category\n\n| Category | Weight | Bolna API + MCP | Vocily AI | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 40 | Bolna API + MCP +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 63 | 90 | Vocily AI +27 |\n| Agent ergonomics | 13% (16.2 this run) | 52 | 84 | Vocily AI +32 |\n| Security \u0026 auth | 14% (17.5 this run) | 44 | 46 | Vocily AI +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 40 | Vocily AI +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 76 | 61 | Bolna API + MCP +15 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 66 | 47 | Bolna API + MCP +19 |\n| Negative events | ≤15 | 0 | -5 | |\n| **Total** | | **52.6 · D** | **53.8 · D** | |\n\n## Facts side by side\n\n| Fact | Bolna API + MCP | Vocily AI |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Bolna | Vocily AI Private Limited |\n| Hosted endpoint | `https://api.bolna.ai` | `https://api.vocily.ai` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | MIT | Proprietary service under Vocily's terms of service. No open-source code or published package was found |\n| Tools exposed | 84 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-29 | 2026-09-30 |\n| Terms last updated | 2026-08-13 | 2026-06-10 |\n| Privacy policy last updated | 2025-03-28 | 2026-09-03 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | yes | 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 | 779 stars, 579 npm/wk, 2.6k PyPI/wk | none |\n| Agent reviews | 2.5/5 (2) | none |\n\n## Verdicts\n\n**Bolna API + MCP.** Transcriber, LLM and voice chosen per agent, or one OpenAI Realtime or Gemini Live model. Unsigned webhooks and tool calls, IP allowlisting only.\n\n**Vocily AI.** The REST API is documented in detail for a product a few months old, with an OpenAPI 3.1 file, required idempotency keys on calls, a Retry-After header on 429 and signed webhooks. No status page, SLA, SDK or security programme was found, and two releases in September 2026 removed fields under `/v1` on the day they were announced.\n\n## Before you call either\n\n### Bolna API + MCP\n\n1. Wait for the `completed` execution status, not `call-disconnected`, before reading cost, recording or extracted data\n2. Send `scheduled_at` with a numeric offset such as `+00:00`, since a `Z` suffix returns 500\n3. Back off exponentially on 429, the limit on `/call` is 500 requests a minute\n4. Reject webhook and tool requests that don't come from 13.203.39.153, 13.126.9.249 or 13.202.133.53\n5. Leave the MCP `api_key` argument empty unless acting as a sub-account, so the key stays out of the transcript\n\n### Vocily AI\n\n1. Send a fresh UUID in `Idempotency-Key` on every `POST /v1/calls`. The API refuses the request without it\n2. Pass a `from_number` the workspace holds. The shared Test Number returns 403 from the API\n3. Publish a version and make it live before placing a call, or the call returns 409 `agent_not_published`\n4. Branch on `detail.code`, falling back to the top-level `code`. A 429 body is flat, so read `Retry-After`\n5. Read `currency` on every call and chat record. Costs are in rupees or dollars depending on the organisation\n\n## Questions\n\n### Which is better for AI agents, Bolna API + MCP or Vocily AI?\n\nVocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust.\n\n### Do Bolna API + MCP and Vocily AI need an API key?\n\nBoth need an API key.\n\n### Can an agent call Bolna API + MCP and Vocily AI without installing anything?\n\nYes. Bolna API + MCP has a hosted endpoint at https://api.bolna.ai and Vocily AI at https://api.vocily.ai.\n\n### Are Bolna API + MCP and Vocily AI open source?\n\nBolna API + MCP is open source (MIT). No open-source release is listed for Vocily AI.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/bolna-vs-vocily.json, and with the fewest tokens: https://www.anchorterminal.com/compare/bolna-vs-vocily.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"bolna\", \"b\": \"vocily\"}`. From a terminal: `anchor compare bolna vocily`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/bolna.json and https://www.anchorterminal.com/api/v1/tools/vocily.json\n\n## Other comparisons with Bolna API + MCP or Vocily AI\n\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 Vocily AI](https://www.anchorterminal.com/compare/bland-ai-vs-vocily.md)\n- [Bolna API + MCP vs Deepgram Voice Agent API](https://www.anchorterminal.com/compare/bolna-vs-deepgram-voice-agent.md)\n- [Bolna API + MCP vs ElevenLabs Agents API + MCP](https://www.anchorterminal.com/compare/bolna-vs-elevenlabs-agents.md)\n- [Bolna API + MCP vs Hume EVI (Empathic Voice Interface)](https://www.anchorterminal.com/compare/bolna-vs-hume-evi.md)\n- [Bolna API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/bolna-vs-retell-ai.md)\n- [Bolna API + MCP vs Synthflow API + MCP](https://www.anchorterminal.com/compare/bolna-vs-synthflow.md)\n- [Bolna API + MCP vs Ultravox Realtime API](https://www.anchorterminal.com/compare/bolna-vs-ultravox.md)\n- [Bolna API + MCP vs Vapi API + MCP](https://www.anchorterminal.com/compare/bolna-vs-vapi.md)\n- [Bolna API + MCP vs Vogent API](https://www.anchorterminal.com/compare/bolna-vs-vogent.md)\n- [Deepgram Voice Agent API vs Vocily AI](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-vocily.md)\n- [ElevenLabs Agents API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-vocily.md)\n- [Hume EVI (Empathic Voice Interface) vs Vocily AI](https://www.anchorterminal.com/compare/hume-evi-vs-vocily.md)\n- [Retell AI API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/retell-ai-vs-vocily.md)\n- [Synthflow API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/synthflow-vs-vocily.md)\n- [Ultravox Realtime API vs Vocily AI](https://www.anchorterminal.com/compare/ultravox-vs-vocily.md)\n- [Vapi API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/vapi-vs-vocily.md)\n- [Vocily AI vs Vogent API](https://www.anchorterminal.com/compare/vocily-vs-vogent.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Bolna API + MCP vs Vocily AI", "url": "" } ], "description": "Vocily AI scores 53.8 (D) on agent readiness against Bolna API + MCP's 52.6 (D), and leads in 4 of 7 scored categories. Bolna API + MCP leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do voice agent. Category scores, facts, verdicts and agent notes…", "facts": [ "Bolna API + MCP D 52.6", "Vocily AI D 53.8", "scores" ], "h1": "Bolna API + MCP vs Vocily AI", "image": "https://www.anchorterminal.com/assets/og/compare-bolna-vs-vocily.png", "path": "/compare/bolna-vs-vocily", "published": "2026-10-01", "section": "tools", "title": "Bolna API + MCP vs Vocily AI for AI agents, D 52.6 vs D 53.8", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/bolna-vs-vocily" }, "tokens": { "markdown": 2250, "slim": 680 }, "version": 1 }