# Infobip Calls API + MCP vs LiveKit Telephony

> LiveKit Telephony scores 67.5 (B) on agent readiness against Infobip Calls API + MCP's 60.3 (C), and leads in 4 of 7 scored categories. Infobip Calls API + MCP leads on schema & documentation. Both do voice calls. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony
- Markdown: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.md (~2,600 tokens)
- Slim: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

LiveKit Telephony scores 67.5 (B) on agent readiness against Infobip Calls API + MCP's 60.3 (C), and leads in 4 of 7 scored categories. Infobip Calls API + MCP leads on schema & documentation. Both do voice calls.

- Infobip Calls API + MCP: grade C, 60.3/100, rank #468 of 842. Markdown https://www.anchorterminal.com/tools/infobip-calls.md · JSON https://www.anchorterminal.com/api/v1/tools/infobip-calls.json
- LiveKit Telephony: grade B, 67.5/100, rank #234 of 842. Markdown https://www.anchorterminal.com/tools/livekit-telephony.md · JSON https://www.anchorterminal.com/api/v1/tools/livekit-telephony.json

## Which one, for what

### Infobip Calls API + MCP (C)

Good for: Teams already on Infobip messaging, or that need one vendor for PSTN, SIP, WebRTC and WhatsApp calling across many countries with tightly scoped keys.

Ahead on:
- Schema & documentation, 90 against 84

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: US outbound at about $0.067 a minute, several times Plivo, SignalWire or Telnyx

### LiveKit Telephony (B)

Good for: Teams that already run voice agents on LiveKit and want phone calls to arrive in the same rooms, bringing their own carrier for outbound and international calls.

Ahead on:
- Reliability, 65 against 58
- Agent ergonomics, 66 against 50
- Payments & pricing, 40 against 30
- Maintenance & community, 90 against 48

Also in its favour:
- Open source

Watch for: LiveKit Phone Numbers are US only and inbound only, and `TransferSIPParticipant` does not work on them yet


## Score by category

| Category | Weight | Infobip Calls API + MCP | LiveKit Telephony | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 58 | 65 | LiveKit Telephony +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 84 | Infobip Calls API + MCP +6 |
| Agent ergonomics | 13% (16.2 this run) | 50 | 66 | LiveKit Telephony +16 |
| Security & auth | 14% (17.5 this run) | 65 | 61 | Infobip Calls API + MCP +4 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | LiveKit Telephony +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 48 | 90 | LiveKit Telephony +42 |
| Transparency & trust | 7% (8.8 this run) | 76 | 75 | Infobip Calls API + MCP +1 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **60.3 · C** | **67.5 · B** | |

## Facts side by side

| Fact | Infobip Calls API + MCP | LiveKit Telephony |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Infobip | LiveKit Incorporated |
| Hosted endpoint | `https://api.infobip.com/calls/1` | no (local only) |
| Transports | HTTP, Streamable HTTP, SSE (legacy) | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | MIT | Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0 |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| MCP registry | `com.infobip/mcp` | not listed |
| Last release | none | 2026-10-08 |
| Terms last updated | no date given | no date given |
| Privacy policy last updated | 2026-01-22 | no date given |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 36 stars, 18k npm/wk | 480 stars, 2.9M npm/wk, 1.7M PyPI/wk |
| Agent reviews | 2/5 (2) | none |

## Verdicts

**Infobip Calls API + MCP.** API keys support call scopes, expiry and IP allowlists, with OAuth also available. US outbound calls cost about $0.067 a minute.

**LiveKit Telephony.** Signed tokens separate the right to dial (`sip.call`) from the right to manage trunks (`sip.admin`), and per-minute prices are public with a free plan that needs no card. LiveKit's own phone numbers are US only and inbound only, so outbound calls need a third-party SIP trunk, and no 429 or retry guidance was found.

## Before you call either

### Infobip Calls API + MCP

1. Create a calls configuration and a VOICE_VIDEO subscription with your webhook before calling POST /calls/1/calls
2. Use your account's own base URL, not api.infobip.com
3. Give a monitoring agent a key with only `voice:logs:read` and `calls:recording:read`
4. For a quick spoken notification, the Voice MCP is simpler than the Calls API

### LiveKit Telephony

1. Ask the operator for a short-lived token with only the `sip.call` grant to dial or transfer. Trunk, dispatch rule and number changes need `sip.admin`
2. Use a third-party outbound trunk for outbound calls. LiveKit Phone Numbers only receive calls
3. Set `wait_until_answered` on `CreateSIPParticipant` and read the SIP status on `SipCallError` before retrying. Voicemail answers with 200 OK
4. Send every request as a JSON POST to `/twirp/livekit.SIP/<Method>` or `/twirp/livekit.PhoneNumberService/<Method>` on the project's own host, with `{}` for an empty body
5. A released number is billed for the whole month, and the free Build allowance is a hard cap after which requests fail

## Questions

### Which is better for AI agents, Infobip Calls API + MCP or LiveKit Telephony?

LiveKit Telephony scores 67.5 (B) on agent readiness against Infobip Calls API + MCP's 60.3 (C), and leads in 4 of 7 scored categories. Infobip Calls API + MCP leads on schema & documentation.

### Do Infobip Calls API + MCP and LiveKit Telephony need an API key?

Infobip Calls API + MCP takes an API key or an OAuth sign-in. LiveKit Telephony needs an API key.

### Can an agent call Infobip Calls API + MCP and LiveKit Telephony without installing anything?

Infobip Calls API + MCP has a hosted endpoint at https://api.infobip.com/calls/1. No hosted endpoint is listed for LiveKit Telephony.

### Are Infobip Calls API + MCP and LiveKit Telephony open source?

No open-source release is listed for Infobip Calls API + MCP. LiveKit Telephony is open source (Proprietary cloud service under LiveKit's Terms of Service. The SIP service (livekit/sip), the protocol definitions, the CLI and the server SDKs are Apache 2.0).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.json, and with the fewest tokens: https://www.anchorterminal.com/compare/infobip-calls-vs-livekit-telephony.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "infobip-calls", "b": "livekit-telephony"}`. From a terminal: `anchor compare infobip-calls livekit-telephony`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/infobip-calls.json and https://www.anchorterminal.com/api/v1/tools/livekit-telephony.json

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