10 Best Live Video Calling APIs & SDKs for Developers (2026 Guide)

Video is no longer a bolt-on feature; it’s core infrastructure. Telehealth platforms, virtual classrooms, live-shopping apps, customer support tools, and AI-powered meeting assistants all depend on the same underlying layer: real-time communication (RTC).

What’s changed in 2026 is that almost nobody builds this layer from scratch anymore.

The engineering cost of a custom WebRTC stack, typically $50K–$200K and 6-12 months of dev time, has pushed most teams toward integrating a video API or SDK instead.

The market reflects that shift.

WebRTC-based communication is projected to grow from roughly $9.56 billion in 2025 to $94.07 billion by 2032, at a compound annual growth rate of 38.6%, and the broader web conferencing market is expected to climb from $9.16 billion in 2026 to $24.90 billion by 2034.

Healthcare is a major driver of this: telehealth adoption proved sticky post-pandemic, and up to 30% of U.S. medical consultations are expected to remain virtual through 2026, almost all of it running on WebRTC under the hood.

At the same time, the type of video API buyers want has changed.

It’s no longer just “can I embed a video call.”

Teams now expect AI transcription, real-time translation, noise cancellation, and, increasingly, AI agents that can join a call as a participant.

This guide covers the 10 best live video calling APIs and SDKs for developers in 2026, how to evaluate them, and how the category is evolving.

Quick Comparison Table

API	Best For	Pricing Model	Recording	AI Features	White Label	Notes
Agora	Global scale, live streaming	Pay-as-you-go + subscription tiers	Yes	Conversational AI add-on	Yes	Resolution-tiered pricing
Twilio Video	Enterprise CX, hourly/seat pricing	Free tier + $1/active-user-hour or $150/named user	Yes	Limited	Yes	Previously announced EOL, later reversed
VideoSDK.live	Startups, live streaming + VoD	Usage-based, new 2026 billing	Yes	AI agents, captions	Yes	20+ framework SDKs
Zoom Video SDK	Teams already on Zoom infra	Prepaid credit packs ($100/$450/mo)	Add-on	Limited	Yes	No true pay-as-you-go
ZEGOCLOUD	Social & live-shopping apps	Subscription/custom quote	Yes	AI avatars	Yes	18-language SDK coverage
100ms	Classrooms, webinars, events	Free tier + per-participant-minute	Yes	Growing	Yes	Acquired by/merged into Dyte-adjacent ecosystem
Daily.co	Startups, fast integration	Free tier + transparent PAYG	Yes	Transcription	Yes	Clean, predictable billing
LiveKit	AI voice/video agents	Free / $50 / $500 / Enterprise	Yes	Native AI Agents framework	Yes	Open source, self-hostable
Vonage Video API	Enterprise, predictable per-participant billing	Flat per-participant-minute	Yes	Limited	Yes	Formerly TokBox OpenTok
Digital Samba	EU/GDPR-sensitive deployments	Capacity-based / per-minute	Yes	AI captions	Yes	EU-hosted infrastructure

What Is a Live Video Calling API?

A live video calling API gives developers the building blocks to add real-time audio/video into an app without building the underlying transport layer themselves.

Most of these products sit atop WebRTC, the open browser standard for peer-to-peer and server-relayed real-time media.

A few terms worth knowing:

• API vs. SDK: An API is the raw programmable interface (endpoints, tokens, signaling); an SDK wraps that API in platform-specific code (iOS, Android, Web, React Native) so you’re not reimplementing media handling yourself.
• STUN/TURN: Protocols that help peers discover each other and relay traffic when a direct peer-to-peer connection isn’t possible (e.g., behind restrictive firewalls).
• SFU vs. MCU: A Selective Forwarding Unit (SFU) forwards individual media streams to each participant, giving better quality at higher scale; a Multipoint Control Unit (MCU) mixes streams server-side into a single stream, which is lighter on bandwidth but heavier on server compute. Most modern vendors, Agora, LiveKit, Daily, 100ms, run SFU architectures.
• Latency and scalability: These vary a lot by vendor based on how many edge points-of-presence they operate and how they price concurrent large sessions (some cap participant counts, others charge more as streams multiply).

How to Choose the Right Video Calling API

Consider each of these dimensions before committing:

• Video quality and latency – does the vendor operate its own global edge network, or lean on a single cloud region?
• Security and compliance – GDPR is table stakes; HIPAA support (via a signed Business Associate Agreement) matters if you’re touching health data.
• Recording and storage – is recording built-in or a separately billed add-on?
• AI capabilities – transcription, live captions, summarization, noise suppression, and (increasingly) native AI agent support.
• Pricing model – per-minute, per-participant-minute, credit packs, or flat subscription. These behave very differently at scale.
• Scalability – max concurrent participants, and whether cost jumps in tiers (as it does with Agora’s resolution-based pricing).
• Documentation and mobile support – how many platform SDKs are maintained, and how active the docs/community are.

Top 10 Live Video Calling APIs in 2026

1. Agora

Overview:

Agora is one of the most established names in the category, powering more than 80 billion minutes of real-time communication monthly across 200+ countries.

It’s built on a proprietary global network rather than commodity CDN infrastructure.

Best use cases:

Global consumer apps, live-streaming/social platforms, and any product needing broad geographic reach with resolution-tunable cost control.

Pros:

• Massive global edge footprint and mature ecosystem of SDKs, plugins, and sample code
• Interactive Live Streaming is priced the same as voice, so there’s no penalty for using it over basic calling
• Holds SOC 2, ISO 27001, GDPR alignment, and acts as a HIPAA Business Associate, covering regulated telehealth and fintech use cases

Cons:

• Pricing is based on aggregate subscribed resolution, not just minutes used; subscribing to two simultaneous HD streams pushes a user into the more expensive Full HD tier, which makes cost forecasting harder than flat per-minute vendors
• Conversational AI is comparatively expensive once the trial runs out

Pricing:

Voice runs about $0.99 per 1,000 minutes, HD video about $3.99 per 1,000 minutes, and Conversational AI about $0.10 per minute.

Subscription tiers range from roughly $45.99 to $1,217.99 per month, plus prepaid annual credit packs.

AI capabilities:

Conversational AI voice/video agents, though billed separately and at a premium versus flat-rate competitors.

Rating:

4.5/5, best for teams that need Agora’s reach and are comfortable managing resolution-tiered billing.

2. Twilio Video

Overview:

Twilio Video has one of the more unusual histories in this list.

Twilio announced it was sunsetting Programmable Video, with an end-of-life date of December 5, 2024, as part of a broader pivot away from CPaaS toward its Customer Engagement Platform.

That decision was later reversed, and Twilio brought Programmable Video back rather than shutting it down.

Best use cases:

Teams already deep in the Twilio ecosystem (Real-time messaging, Voice, Segment) who want video alongside those channels, especially for 1:1 customer-engagement scenarios rather than large group calls.

Pros:

• Tight integration with Twilio’s other communication products
• Generous free tier to start

Cons:

• The 2024 sunset scare left lingering trust concerns in the developer community about long-term commitment to the product
• Development on the SDK reportedly slowed significantly in the run-up to the (reversed) shutdown announcement

Pricing:

Twilio Video starts with 5,000 hours free, then bills at $1 per active user hour or $150 per named user per month.

AI capabilities:

Limited compared to newer entrants; Twilio’s AI investment has focused more on Voice and messaging than video.

Rating:

3.7/5, solid if you’re already on Twilio, but its volatile product history is worth factoring into vendor-risk assessments.

3. VideoSDK.live

Overview:

VideoSDK.live is a developer- and startup-focused platform combining real-time video calls, interactive live streaming, and video-on-demand under one set of APIs.

Best use cases:

Startups building OTT/creator apps, large-scale town halls, or products needing both calling and one-to-many streaming from a single vendor.

Pros:

• Supports 20+ framework SDKs with quick-start templates and full white-label customization
• Live streaming scales to 100,000+ viewers with up to 25 simultaneous hosts, plus RTMP multistreaming in 1080p to 20+ platforms at once
• HIPAA-ready workflows are available on the organization side

Cons:

• Historically less brand recognition than Agora or Twilio, though it’s closed that gap quickly
• 2026 billing overhaul means some older cost comparisons online are now outdated

Pricing:

VideoSDK rolled out a completely redesigned transparent billing system for 2026, with published entry rates around $2 per 1,000 minutes, meaningfully cheaper than Zoom Video SDK at equivalent usage.

AI capabilities:

AI agents with stateful “Conversational Graphs,” provider fallback for reliability, and video optimization features rolled out across core SDKs in the same update.

Rating:

4.3/5, a strong pick for startups that want live streaming and calling from a single vendor without enterprise-grade pricing.

4. Zoom Video SDK

Overview:

Zoom’s Video SDK gives developers access to Zoom’s WebRTC-based infrastructure without the branded meeting UI; Zoom becomes invisible plumbing rather than a visible product.

This is distinct from the Meeting SDK, which embeds Zoom’s native meeting experience as-is.

Best use cases:

Teams building white-label video features who want Zoom’s proven backbone without users knowing they’re “in Zoom,” or organizations already running Zoom infrastructure elsewhere.

Pros:

• Backed by infrastructure that’s scaled to billions of meeting minutes
• 20 free credits per month to start building

Cons:

• No true pay-as-you-go; Zoom’s Build Platform requires a monthly subscription of either $100 for 100 credits or $450 for 500 credits
• Recording is a separate line item at roughly $0.01/minute, plus $0.25/GB storage, with transcripts and summaries billed separately at $0.0075/minute each.
• No native interactive live-streaming product

Pricing:

The effective published rate works out to about $3.50 per 1,000 participant-minutes, noticeably higher than several newer competitors at the same volume.

AI capabilities:

More limited and tightly controlled compared to AI-native platforms like LiveKit or VideoSDK.

Rating:

3.9/5, best when brand trust and existing Zoom infrastructure outweigh the cost premium.

5. ZEGOCLOUD

Overview:

ZEGOCLOUD focuses heavily on social, live-shopping, and interactive entertainment use cases, alongside standard 1:1 and group video calling.

Best use cases:

Social apps, live commerce, virtual avatars/metaverse-adjacent products, and gaming platforms needing low-latency voice/video at scale.

Pros:

• SDKs available for 18 programming languages and frameworks, with strong developer documentation
• Includes an AI avatar solution for creating and customizing virtual avatars across social, gaming, and virtual-event use cases

Cons:

• No free trial or free plan; all plans require payment, and pricing is largely quote-based rather than published
• Some users report the payment/billing process is more complex than competitors

Pricing:

Starting price is reported around $199/month, though most deployments require a custom quote.

AI capabilities:

AI avatars and video-interaction enhancements are a differentiator versus more utilitarian competitors.

Rating:

4.1/5, strong for social/entertainment products, less ideal if you want transparent self-serve pricing.

6. 100ms

Overview:

100ms has built a following around fast, template-driven setup for classrooms, webinars, and virtual events; developers can go live with pre-built role templates in a handful of lines of code.

Best use cases:

EdTech classrooms, webinars, and virtual events that need role-based permissions (host, speaker, viewer) out of the box.

Pros:

• Pre-built templates let developers define roles on the dashboard and skip hundreds of lines of custom code
• Feature set includes private/public chat, dynamic role change, custom-layout recording, breakout rooms, and virtual backgrounds

Cons:

• Pricing is largely quote-based with no fully public price list
• Free tier is capped at 10,000 conferencing minutes before per-participant billing kicks in

Pricing:

After the free tier, conferencing runs about $2.40 per participant per 1,000 minutes, with full-call recording at roughly $6 per 1,000 minutes.

AI capabilities:

Growing, though less mature than LiveKit’s or VideoSDK’s AI-agent frameworks.

Rating:

4.2/5, excellent developer experience for classroom/webinar formats specifically.

7. Daily.co

Overview:

Daily.co has built a reputation as the fastest, most developer-friendly option to integrate, often cited as the quickest to get from zero to a working call.

Best use cases:

Startups and small teams that want predictable, envelope-math billing and minimal setup friction.

Pros:

• Pricing is unusually clean for a CPaaS vendor; costs can be modeled on the back of an envelope
• Strong native support for piping multi-participant calls out to live-streaming platforms via RTMP

Cons:

• No native EU-only data residency option
• A 1,000-participant ceiling applies to standard calls before you need to switch to view-only broadcast mode.

Pricing:

Free tier for lighter usage, then transparent pay-as-you-go video pricing; a representative modeled example puts 1.5 million participant-minutes per month at roughly $5,960, plus about $1,350 for 100,000 minutes of recording.

AI capabilities:

Transcription and growing AI tooling, though the platform’s core strength remains raw developer speed-to-market.

Rating:

4.4/5, a top pick for startups prioritizing simplicity and fast integration.

8. LiveKit

Overview:

LiveKit has become the default real-time transport layer for the current wave of AI voice and video agents.

It’s open source at its core, with a managed cloud layer on top, and its growth trajectory is the steepest on this list.

Best use cases:

AI voice/video agent products, conversational AI, and any team that wants the option to self-host to eliminate per-minute fees at scale.

Pros:

• The underlying server is free and open source under Apache 2.0, self-hostable with no per-minute fees
• Powers OpenAI’s ChatGPT voice mode and, by the company’s own account, roughly a quarter of U.S. 911 emergency calls; other listed customers include xAI, Salesforce, Tesla, Spotify, Meta, Microsoft, and Character AI
• Raised a $100 million Series C in January 2026 at a $1 billion valuation, signaling strong continued investment
• Free Build tier includes 1,000 agent-session minutes, 5,000 WebRTC minutes, and 50GB of data transfer per month, generous for prototyping

Cons:

• Once you outgrow the free Build tier, Ship ($50/mo) or Scale ($500/mo) tiers are billed whether or not you use the bundled minutes
• AI-agent costs compound quickly once you layer in an LLM, speech-to-text, and text-to-speech provider on top of base session pricing

Pricing:

Free for development, $50–$500/month for production cloud tiers, plus usage-based charges starting around $0.0004/minute for WebRTC.

Self-hosting removes per-minute fees entirely in exchange for managing your own infrastructure.

AI capabilities:

This is LiveKit’s core differentiator, a purpose-built Agents framework for voice/video AI, not a bolt-on feature.

Rating:

4.7/5, the clear leader for anyone building AI-native video or voice products in 2026.

9. Vonage Video API

Overview:

Vonage Video API (built on the former TokBox OpenTok platform) targets enterprises that want predictable, flat per-participant billing rather than resolution- or credit-based models.

Best use cases:

Telehealth, virtual classrooms, and enterprise customer-support tools where budget predictability matters more than granular resolution control.

Pros:

• Simple, flat usage-based pricing calculated per participant per minute, covering video, voice, screen-sharing, signaling, chat, and TURN relay under one rate
• Supports sessions up to 15,000 participants and 25 active publishers without separate bandwidth restrictions

Cons:

• Rates step up automatically as active publisher count rises (for example, sessions with 26+ active publishers move to a higher per-participant rate)
• Vonage’s broader corporate track record includes a well-publicized FTC settlement over billing/cancellation practices, worth factoring into enterprise procurement diligence.

Pricing:

The baseline rate is $0.0041 per participant per minute, with a free tier available for early development.

AI capabilities:

Comparatively limited relative to AI-native platforms; Vonage’s AI investment has leaned more toward its Conversational Commerce and contact-center products.

Rating:

4.0/5, a dependable, budget-predictable choice for enterprise video, especially in telehealth.

10. Digital Samba

Overview:

Digital Samba is a European video conferencing provider that differentiates on data residency; it’s EU-hosted, which matters for European companies with strict GDPR requirements.

Best use cases:

European businesses, legal and healthcare platforms, and any product where EU data residency is a hard requirement rather than a nice-to-have.

Pros:

• GDPR-compliant, EU-hosted infrastructure with a capacity-based pricing model that scales from pilot projects to enterprise deployments
• Includes AI-generated captions for accessibility, plus breakout rooms and live polls for interactive sessions
• Free tier renews 10,000 minutes monthly with no credit card required

Cons:

• Smaller global footprint and brand recognition compared to Agora or Zoom
• Feature depth is strong for meetings/webinars but less built out for large-scale live streaming than VideoSDK or Agora

Pricing:

Embedded API access starts around €0.0040 per minute, with volume discounts available.

AI capabilities:

AI live transcription/captions are built in; broader AI-agent tooling is less mature than category leaders like LiveKit.

Rating:

4.0/5, the go-to option specifically for EU data-residency requirements.

Feature Comparison Table

Platform	WebRTC	Screen Share	Recording	AI	Livestream	Open Source	Self-Hosted	Mobile SDK
Agora	✅	✅	✅	✅ (add-on)	✅	❌	❌	✅
Twilio Video	✅	✅	✅	Limited	❌	❌	❌	✅
VideoSDK.live	✅	✅	✅	✅	✅	❌	❌	✅
Zoom Video SDK	✅	✅	Add-on	Limited	❌	❌	❌	✅
ZEGOCLOUD	✅	✅	✅	✅	✅	❌	❌	✅
100ms	✅	✅	✅	Growing	✅	❌	❌	✅
Daily.co	✅	✅	✅	✅	✅	❌	❌	✅
LiveKit	✅	✅	✅	✅ (native)	✅	✅	✅	✅
Vonage Video API	✅	✅	✅	Limited	✅	❌	❌	✅
Digital Samba	✅	✅	✅	✅	✅	❌	❌	✅

Video Calling API Pricing Comparison

Pricing structures fall into roughly four camps in 2026:

• Flat per-participant-minute (Vonage at $0.0041/participant-minute), simplest to forecast.
• Resolution- or feature-tiered per-minute (Agora), cheaper at low resolution, more expensive as you subscribe to more simultaneous HD streams.
• Prepaid credit packs/subscription tiers (Zoom Video SDK’s $100/100 credits or $450/500 credits, LiveKit’s $50/$500 monthly tiers), predictable monthly cost, but you pay the tier price even at low usage.
• Custom/quote-based (ZEGOCLOUD, 100ms), flexible for enterprise deals, but harder to comparison-shop as a self-serve developer.

The one truly unique lever is self-hosting: LiveKit’s open-source core is the only option on this list that lets you eliminate per-minute vendor fees by running the infrastructure yourself; the tradeoff is that you now own operational reliability.

Wiring any of these into an existing product without breaking call quality under load is a job for hands-on API integration and custom development, not a plug-and-play SDK.

Industries Using Video Calling APIs

Healthcare & Telemedicine: Virtual consultations are now a durable part of care delivery, not a pandemic-era stopgap, driving demand for HIPAA-capable vendors like Agora, VideoSDK, and Vonage.

Education: Live classrooms, tutoring, and virtual labs lean on role-based platforms like 100ms and ZEGOCLOUD.

Finance: Video KYC, wealth-management consultations, and remote advisory services need strong compliance postures.

Customer Support: Video-enabled support (co-browsing, screen share, live agent video) is a growing differentiator for CX platforms.

Fitness & Wellness: Live and on-demand class streaming benefits from platforms with strong live-streaming legs, like VideoSDK and Agora.

Gaming & Social: Voice/video overlays in social and gaming apps are ZEGOCLOUD’s and Agora’s strongest use case.

Dating Apps: Video-first matching relies on low-latency 1:1 calling; Daily.co and Vonage fit well here.

Remote Hiring: Structured interview platforms use recording and transcription features heavily.

AI Features Transforming Video APIs in 2026

The biggest shift in this category over the past year isn’t video quality; it’s AI joining the call as a participant, not just a feature layered on top.

• AI meeting summaries and automated note generation are now standard expectations, not premium add-ons.
• Live captions and real-time translation are increasingly bundled rather than separately priced.
• Voice isolation and background replacement have matured into near-commodity features across most vendors.
• AI agents joining meetings, the LiveKit Agents model in particular, represent the newest and fastest-growing category: an AI voice/video participant that can transcribe, respond, transfer calls, and integrate with an LLM and TTS/STT stack in real time. Well-designed context engineering for these agents (how conversation history and session state get fed back into the model) increasingly determines how coherent an AI meeting assistant feels across a long call.
• Emotion detection exists but remains used cautiously, generally confined to specific enterprise/analytics contexts rather than general-purpose deployment.

This shift also explains why LiveKit’s growth has outpaced older, calling-only vendors; it was purpose-built for the AI-agent use case rather than retrofitted for it.

Build vs. Buy: Should You Build Your Own Video Infrastructure?

Factor	Custom WebRTC Build	Vendor SDK/API
Upfront cost	$50K–$200K+	Near-zero to start
Time to launch	6–12 months	Days to weeks
Ongoing maintenance	Fully owned	Vendor-managed (except self-hosted LiveKit)
Security/compliance	You own it entirely	Often pre-certified (SOC 2, GDPR, HIPAA BAAs)
Scaling	Requires dedicated infra investment	Elastic, pay-as-you-grow

For most teams, including those building custom software more broadly, buying a video API is the default rational choice.

Building makes sense mainly when you have very specific compliance, data-residency, or cost-at-massive-scale requirements that no vendor’s terms will satisfy, which is exactly the gap LiveKit’s self-hosted option is designed to fill.

Common Challenges

• Bandwidth and packet loss – especially in markets with inconsistent broadband/mobile networks
• Cross-platform compatibility – maintaining consistent quality across iOS, Android, web, and desktop
• Compliance – HIPAA, GDPR, and increasingly the EU AI Act’s transparency requirements for AI-driven interactions
• Browser inconsistencies – WebRTC implementation still varies subtly across browser engines
• TURN server costs – relay costs spike in restrictive network environments, and this is often the hidden cost vendors don’t headline

How HyScaler Helps Build Custom Video Applications

Choosing the right API is only half the equation; integrating it well, securing it, and scaling it in production is where most projects actually stall.

HyScaler’s custom software development services help teams design and ship custom WebRTC applications, telemedicine and video consultation platforms, live-streaming products, and AI-powered communication features, backed by mobile development and cloud deployment expertise across the stack.

If your product involves regulated data, HyScaler’s team can also help architect the ERP-adjacent enterprise communication modules that many businesses need alongside video infrastructure, and connect video features to broader AI solutions such as voice agents and contextual meeting assistants.

Conclusion

There’s no universal winner in the live video calling API category in 2026; the right choice depends on which of these matters most to you: global reach and live streaming (Agora, VideoSDK), AI-agent-native architecture (LiveKit), predictable enterprise billing (Vonage), EU data residency (Digital Samba), or fast startup integration (Daily.co, 100ms).

Start from your compliance requirements and expected AI feature set, model your costs at realistic volume rather than headline rates, and pilot with the vendor’s free tier before committing; nearly every provider on this list offers one.

FAQ