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Head-to-head · Communication Platform as a Service (cPaaS) Platforms

Amazon Chime SDK PSTN Audio vs LiveKit Agents

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Amazon Chime SDK PSTN Audio #5 in Communication Platform as a Service (cPaaS) Platforms 8.8/10 Paid ✓ 1 of 6 features Visit AWS
LiveKit Agents #8 in Communication Platform as a Service (cPaaS) Platforms 7.9/10 Free plan Free plan✓ 0 of 6 features Visit LiveKit Agents

Amazon Chime SDK PSTN Audio leads on 0 checks, LiveKit Agents on 1, and 1 is even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAmazon Chime SDK PSTN Audio · 8.8/10
  • Free planonly LiveKit Agents
  • Most featuresAmazon Chime SDK PSTN Audio · 1 of 6

Amazon Chime SDK PSTN Audio scores higher on our rubric for communication platform as a service (cpaas) platforms: 8.8 against 7.9 out of 10; our editors rank them #5 and #8.

LiveKit Agents offers free plan; Amazon Chime SDK PSTN Audio doesn't.

Amazon Chime SDK PSTN Audio is the better fit for AWS-centric teams adding PSTN calling and call flows. LiveKit Agents is the better fit for builders creating real-time voice AI agents.

  • Amazon Chime SDK PSTN Audio fits best

    AWS-centric teams adding PSTN calling and call flows

  • LiveKit Agents fits best

    Builders creating real-time voice AI agents

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Amazon Chime SDK PSTN Audio 8.8/10 Visit ↗ LiveKit Agents 7.9/10 Visit ↗
At a glance
Editor score 8.8 7.9
Ranking #5 in Communication Platform as a Service (cPaaS) Platforms #8 in Communication Platform as a Service (cPaaS) Platforms
Best for AWS-centric teams adding PSTN calling and call flows Builders creating real-time voice AI agents
Pricing model Paid Free plan + paid
Starting price $0.002/unit usage-based $50/mo
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Self-hosted
Integrations 4 integrations 11 integrations
Features Amazon Chime SDK PSTN Audio 1/6 · LiveKit Agents 0/6
SMS messaging Not checked yet Not checked yet
Voice calling Not checked yet Not checked yet
Video communications Not checked yet Not checked yet
WhatsApp channel Not checked yet Not checked yet
Phone numbers ✓ (best) Not checked yet
No-code builder Not checked yet Not checked yet
Specs
Supported countries Not checked yet Not checked yet
Our review
Pros
  • Supports inbound and outbound PSTN calling through APIs.
  • Connects call flows with AWS Lambda and recording to Amazon S3.
  • Offers number provisioning, porting and SIP trunk connectivity.
  • Open-source framework with LiveKit Cloud and self-hosted deployment options
  • Inbound and outbound telephony with SIP, transfers, and human handoffs
  • Pluggable model integrations plus testing, recordings, transcripts, and traces
Cons
  • Usage costs also include telephony, numbers and related AWS services.
  • Call recording adds a separate per-minute charge.
  • Its published feature set focuses on voice rather than broader cPaaS needs.
  • More specialized for AI-agent workflows than general-purpose cPaaS
  • The Scale plan costs $500 per month
  • Telephony workflows depend on phone numbers or SIP providers
Our verdict

For developers building voice applications within AWS, Amazon Chime SDK PSTN Audio provides APIs for inbound and outbound telephone calls. It supports calls to provisioned numbers, outbound calls through an API, and call flows controlled…

Read the review →

LiveKit Agents combines an open-source framework with a cloud platform for realtime, programmable voice and multimodal AI agents. It is aimed at developers and teams creating conversational voice applications and other realtime AI…

Read the review →
  1. Amazon Chime SDK PSTN AudioCommunication Platform as a Service (cPaaS) Platforms 8.8Paid
  2. LiveKit AgentsCommunication Platform as a Service (cPaaS) Platforms 7.9Free plan

Strengths and trade-offs

  • Amazon Chime SDK PSTN Audio — where it wins

    • Supports inbound and outbound PSTN calling through APIs.
    • Connects call flows with AWS Lambda and recording to Amazon S3.
    • Offers number provisioning, porting and SIP trunk connectivity.

    Where it doesn't

    • Usage costs also include telephony, numbers and related AWS services.
    • Call recording adds a separate per-minute charge.
    • Its published feature set focuses on voice rather than broader cPaaS needs.

  • LiveKit Agents — where it wins

    • Open-source framework with LiveKit Cloud and self-hosted deployment options
    • Inbound and outbound telephony with SIP, transfers, and human handoffs
    • Pluggable model integrations plus testing, recordings, transcripts, and traces

    Where it doesn't

    • More specialized for AI-agent workflows than general-purpose cPaaS
    • The Scale plan costs $500 per month
    • Telephony workflows depend on phone numbers or SIP providers

More comparisons

All communication platform as a service (cPaaS) platforms comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update