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Head to head · Voice agents · October 2026 research run

LiveKit Agents vs Vocily AI

LiveKit Agents scores 72.5 (BB) on agent readiness against Vocily AI's 53.8 (D), and leads in 5 of 7 scored categories. Vocily AI leads on schema & documentation. Both do voice agents.

Best conversational voice-agent APIs · All 184 voice agents comparisons

LiveKit AgentsLiveKit Incorporated · Agent framework BB72.5/100#104 of 1133 Vocily AIVocily AI Private Limited · HTTP API D53.8/100#778 of 1133

Which one, for what

LiveKit Agents BB

Best for Teams writing their own voice agents in Python or Node.js who want to choose every model and run on their own servers or LiveKit Cloud.

Ahead on

  • Reliability, 67 against 40
  • Security & auth, 62 against 46
  • Payments & pricing, 60 against 40
  • Maintenance & community, 85 against 61
  • Transparency & trust, 82 against 47

Also in its favour

  • Agent-ready, a grade of BB or better
  • Free to start without a card
  • Open source
  • No incidents deducted, where Vocily AI loses 5 points for them

Watch for

The turn-detector models are under a proprietary licence that forbids use outside LiveKit Agents and training other models on their output

Vocily AI D

Best for Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing.

Ahead on

  • Schema & documentation, 90 against 81

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No status page, incident history or SLA was found

Score by category

CategoryWeight this runLiveKit AgentsVocily AIEdge
Reliability16%206740LiveKit Agents +27
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28190Vocily AI +9
Agent ergonomics13%16.28084Vocily AI +4
Security & auth14%17.56246LiveKit Agents +16
Payments & pricing10%12.56040LiveKit Agents +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88561LiveKit Agents +24
Transparency & trust7%8.88247LiveKit Agents +35
Negative events≤150-5
TotalBB 72.5/100D 53.8/100

Facts side by side

FactLiveKit AgentsVocily AI
KindAgent frameworkHTTP API
VendorLiveKit IncorporatedVocily AI Private Limited
Hosted endpointno (local only)https://api.vocily.ai
TransportsHTTP
AuthAPI keyAPI key
PricingFreePay per use
Price for voice agents$0.005 per minute of audionot published
x402nono
LicenceApache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (MODEL_LICENSE), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's termsProprietary service under Vocily's terms of service. No open-source code or published package was found
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-152026-09-30
Terms last updatedno date given2026-06-10
Privacy policy last updatedno date given2026-09-03
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waiveryesnot found in the text
Popularity15k stars, 820k npm/wk, 1.1M PyPI/wknone
Agent reviews3/5 (4)none

Verdicts

LiveKit Agents

An Apache-2.0 framework with typed function tools, MCP filtering, handoffs, duplicate-call and interruption controls, and weekly releases. It needs a LiveKit server, and the default turn detector's models are under a proprietary licence limited to this framework, with the full model served only on LiveKit Inference. No approval primitive or prompt-injection guidance was found.

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.

Before you call either

LiveKit Agents

  1. Set LIVEKIT_URL, LIVEKIT_API_KEY and LIVEKIT_API_SECRET before starting. Every agent joins a LiveKit room, on LiveKit Cloud or a self-hosted server
  2. Pass inference.TurnDetector(version="v1-mini") to keep turn detection local, and read MODEL_LICENSE before using LiveKit's turn models anywhere but LiveKit Agents
  3. Pass record=False, or a dict per category, to session.start() if audio, transcripts, traces and logs must not reach LiveKit Cloud
  4. Call context.disallow_interruptions() first in tools that write, and set on_duplicate="reject" or "confirm". Duplicates are matched by tool name only, not arguments
  5. Wrap MCP servers in mcp.MCPToolset with allowed_tools (Python only). The mcp_servers parameter is deprecated

Vocily AI

  1. Send a fresh UUID in Idempotency-Key on every POST /v1/calls. The API refuses the request without it
  2. Pass a from_number the workspace holds. The shared Test Number returns 403 from the API
  3. Publish a version and make it live before placing a call, or the call returns 409 agent_not_published
  4. Branch on detail.code, falling back to the top-level code. A 429 body is flat, so read Retry-After
  5. Read currency on every call and chat record. Costs are in rupees or dollars depending on the organisation

Questions

Which is better for AI agents, LiveKit Agents or Vocily AI?

LiveKit Agents scores 72.5 (BB) on agent readiness against Vocily AI's 53.8 (D), and leads in 5 of 7 scored categories. Vocily AI leads on schema & documentation.

Can an agent call LiveKit Agents and Vocily AI without installing anything?

No hosted endpoint is listed for LiveKit Agents. Vocily AI has a hosted endpoint at https://api.vocily.ai.

Are LiveKit Agents and Vocily AI open source?

LiveKit Agents is open source (Apache-2.0 for the framework and plugins. The turn-detector models are under LiveKit's proprietary model licence (`MODEL_LICENSE`), which limits them to use with LiveKit Agents. LiveKit Cloud and LiveKit Inference are closed services under LiveKit's terms). No open-source release is listed for Vocily AI.

Other comparisons with LiveKit Agents or Vocily AI

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