VoltKit RTC
Free account requiredVideo calling API pricing in India, in rupees
Full HD video with HD audio from ₹99 (≈ $1.04) per 1,000 participant-minutes; standard voice from ₹39 (≈ $0.41).
VoltKit RTC is an API for live video and voice rooms with chat built in. Built in India and priced in rupees: you recharge one prepaid VoltKit Wallet, and every participant is billed per second for the media they actually use, whether standard voice, HD voice, or Full HD video with HD audio included.
There is no subscription and nothing renews by itself. Chat, tokens, API calls and webhooks are not billed.
Your first project starts with 2,500 free participant-minutes, once per account, at any quality.
- Billed in rupees
- UPI, card, net banking
- No subscription
- Per-second billing
Rates
Every rate in rupees, per 1,000 participant-minutes
Rates are set in VoltKit Credits per 1,000 participant-minutes, and a recharge buys credits in rupees. The rupee figure beside each rate is what it costs at today's conversion. The same rates are on the pricing page and in your dashboard before anything is charged.
Voice
Standard Voice
Up to 64 kbps
39 credits
per 1,000 participant-minutes
0.039 credits per participant-minute · ₹39 (≈ $0.41) per 1,000 participant-minutes
HD Voice
Up to 128 kbps
49 credits
per 1,000 participant-minutes
0.049 credits per participant-minute · ₹49 (≈ $0.52) per 1,000 participant-minutes
Full HD Video + HD Audio
HD audio includedUp to 1080p/30, HD audio included
99 credits
per 1,000 participant-minutes
HD audio included in video — no separate audio charge.
Video with HD audio is 99 credits per 1,000 participant-minutes in total, never 99 + 49. A participant is billed one rate at a time: the highest media they actually send or receive.
0.099 credits per participant-minute · ₹99 (≈ $1.04) per 1,000 participant-minutes
Optional 60 fps upgrades
The premium is added to the video rate; at 30 fps the video rate applies. Totals include HD audio.
| Mode | Premium | Total | Per participant-minute |
|---|---|---|---|
| Up to 1080p/30 | 0 | 99 | 0.099 |
| 480p/60 | +10 | 109 | 0.109 |
| 720p/60 | +25 | 124 | 0.124 |
| 1080p/60 | +50 | 149 | 0.149 |
Charged only while 60 fps is actually delivered. It needs a 60 fps camera or source.
Prices are in VoltKit Credits. New recharges: ₹1 = 1.0000 credits (≈ $0.01), so video with HD audio costs ₹99 (≈ $1.04) per 1,000 participant-minutes at today's conversion. Price list version 1.
Prices are in Indian rupees; dollar figures are approximate, at ₹95 per US dollar on 24 October 2026, for orientation only. You are billed in rupees.
Prices are in credits per 1,000 participant-minutes. One participant connected for one minute = one participant-minute.
- Rates measured per participant-minute.
- HD audio included with video.
- Actual media mode determines applicable rate.
- Enabling services does not itself generate metered charges.
- Quality depends on supported device, codec, and network.
- Billing uses authenticated server-side measurements.
- Wallet offers and conversion are displayed before payment.
- Taxes, where applicable, are shown separately or clearly included.
- Premium frame rates depend on availability and compatibility.
Each participant is billed one rate at a time: the highest of what they send and what they receive, recorded every 5 seconds and charged per second.
Calculator
Work out what a session costs
People × minutes × the rate ÷ 1,000. Pick a rate from the live list, or start from a preset: a 1:1 call, a voice room, or a live room with an audience.
Participant-minute calculator
Worked examples
Three sessions, priced from the same live rates
Each example is people × minutes = participant-minutes, then participant-minutes × the rate ÷ 1,000 = credits, at today's conversion.
2 people × 60 minutes = 120 participant-minutes
120 participant-minutes × 99 ÷ 1,000 = 11.88 credits, ₹11.88 (≈ $0.13) at today's rate
Full HD Video + HD Audio: 99 credits per 1,000 participant-minutes. Billed per second, so a 7½-minute call costs 7½ minutes.
10 people × 60 minutes = 600 participant-minutes
600 participant-minutes × 39 ÷ 1,000 = 23.4 credits, ₹23.40 (≈ $0.25) at today's rate
Standard Voice: 39 credits per 1,000 participant-minutes. Billed per second, so a 7½-minute call costs 7½ minutes.
502 people × 30 minutes = 15,060 participant-minutes
15,060 participant-minutes × 99 ÷ 1,000 = 1,490.94 credits, ₹1,490.94 (≈ $15.7) at today's rate
Full HD Video + HD Audio: 99 credits per 1,000 participant-minutes. Billed per second, so a 7½-minute call costs 7½ minutes.
How billing works
Billed for the media each participant uses, per second
- One participant connected for one minute = one participant-minute. Ten people in a room for six minutes use 60 participant-minutes.
- Usage is recorded in seconds and billed per participant-second, with no rounding up. Billed per second, so a 7½-minute call costs 7½ minutes.
- Each participant is billed one rate at a time: the highest of what they send and what they receive, recorded every 5 seconds and charged per second.
- HD audio included in video — no separate audio charge. A participant on video pays the video rate alone, never video plus audio.
- 60 fps is an upgrade: Charged only while 60 fps is actually delivered. It needs a 60 fps camera or source.
- Viewers are participants: everyone connected to a room is billed at the rate of the media they receive, so listeners who receive audio only pay a voice rate.
- Not billed: chat messages, chat-only connections, API calls, tokens, webhooks and in-app music.
- When the wallet reaches zero, rooms close and nothing more is charged: there is no debt, and if the last few seconds cost more than was left, the rest is not charged to you.
Every rule, with the API that reports usage: Usage and billing.
Pay in rupees
One prepaid wallet, recharged by UPI, card or net banking
- Recharge from Wallet → Recharge in your dashboard, through Razorpay's checkout: UPI, cards or net banking.
- By default the recharge page offers presets from ₹100 (≈ $1.05) to ₹10,000 (≈ $105), or a custom amount up to ₹1,00,000 (≈ $1,053); it shows the amounts on offer when you recharge.
- Before you pay, the quote shows exactly what you pay and the credits you get, with any offer or coupon bonus, and roughly how many participant-minutes they cover at today's rates.
- Credits arrive once our server has verified the payment, never from the browser alone, and every recharge gets a receipt. Nothing renews by itself.
- Your free and previously bought minutes stay on your account and are always used first; your wallet credits are used after them. Recharging never removes or shortens them.
- Tax: no GST is added to recharges at present: a ₹1,000 (≈ $10.5) recharge costs ₹1,000. If GST applies later, the quote and the receipt show it before you pay, and only recharges made after the change are affected.
- Charges: any service, platform or payment gateway charge is shown on the recharge page, next to the amount, before you pay. A charge buys no credits.
- Refunds: paid credits you have not used can be refunded within 7 days of the recharge; the bonus that came with it is removed in proportion. See the refund policy.
Your backend mints a short-lived token for each user with your API secret, which never reaches an app: issue tokens from your backend. Tokens and API calls cost nothing.
Other vendors
The same minutes at vendors that price in US dollars
List prices as the vendors publish them, in US dollars, with an approximate rupee figure for orientation and VoltKit's live rates in rupees underneath. Units differ between vendors; the notes say how.
VoltKit RTC: ₹99 (≈ $1.04) per 1,000 participant-minutes for Full HD video at the list prices published on 2026-10-24 by the vendors compared.
| Vendor | Product line | List price (US$, ≈ ₹ for orientation) | Unit | Note | Source, read 2026-10-24 |
|---|---|---|---|---|---|
| Agora | Voice | $0.99(≈ ₹94) | per 1,000 minutes | Also the overage rate for Standard Minutes on paid packages. | agora.ioread 2026-10-24 |
| Agora | Video HD | $3.99(≈ ₹379) | per 1,000 minutes | Aggregate resolution up to 921,600 px (for example 1280×720). No SD tier is published; 480p falls inside HD. | agora.ioread 2026-10-24 |
| Agora | Video Full HD | $8.99(≈ ₹854) | per 1,000 minutes | Aggregate resolution above 921,600 and up to 2,073,600 px | agora.ioread 2026-10-24 |
| ZEGOCLOUD | Video Call | $3.99(≈ ₹379) | per 1,000 participant-minutes | Not stated on the pricing page. The pricing page does not say which resolution this rate covers. | zegocloud.comread 2026-10-24 |
| Twilio Video | Video Group Rooms | $4.00(≈ ₹380)Published as $0.004 per participant-minute | per 1,000 participant-minutes | No resolution tiers. The page says “Pricing current as of August 2026”. | twilio.comread 2026-10-24 |
| 100ms | Video conferencing | $4.00(≈ ₹380)Published as $0.004 per participant-minute | per 1,000 participant-minutes | After 10,000 free conferencing minutes a month. | 100ms.liveread 2026-10-24 |
| Cloudflare RealtimeKit (Dyte's successor) | Audio/video participant | $2.00(≈ ₹190)Published as $0.002 per minute | per 1,000 participant-minutes | No resolution tiers. | developers.cloudflare.comread 2026-10-24 |
| Tencent RTC (TRTC) | Video HD | $3.99(≈ ₹379) | per 1,000 minutes | Aggregate resolution of subscribed streams up to 921,600 px. SD is not published; it falls inside HD. | trtc.ioread 2026-10-24 |
| Tencent RTC (TRTC) | Video Full HD | $8.99(≈ ₹854) | per 1,000 minutes | Aggregate resolution of subscribed streams up to 2,073,600 px | trtc.ioread 2026-10-24 |
| VoltKit (₹, ≈ US$ for orientation), read live from VoltKit's price list | |||||
| VoltKit RTC | Standard Voice | ₹39 (≈ $0.41) | per 1,000 participant-minutes | Up to 64 kbps | Live price list |
| VoltKit RTC | HD Voice | ₹49 (≈ $0.52) | per 1,000 participant-minutes | Up to 128 kbps | Live price list |
| VoltKit RTC | Full HD Video + HD Audio | ₹99 (≈ $1.04) | per 1,000 participant-minutes | Up to 1080p/30, HD audio included | Live price list |
List prices as published on 2026-10-24, each at the URL beside it. Figures marked ≈ ₹ are converted at ₹95 per US dollar (24 October 2026), for orientation only.
Plans, free allowances and the rest of each vendor's price list, one page per vendor: compare VoltKit with Agora and other video APIs.
2,500 free minutes — every RTC feature at full quality
- 1080p video
- 60 fps
- HD audio
- HD music
Up to 25 people per room during the trial. One lifetime trial per account, on your first project. Trial minutes count one per participant-minute at any quality, so you test everything exactly as it will run.
The trial is for your first project. Your first paid recharge ends its room limit; the unused trial minutes stay with the project and are still used first.
SDKs
SDKs for web, mobile and your backend
Flutter covers Android and iOS apps. The native iOS (Swift) SDK is in preview and not released yet.
JavaScript (browser)
JavaScript SDK guide$ npm install @voltkit-rtc/clientReact (browser)
React SDK guide$ npm install @voltkit-rtc/react @voltkit-rtc/clientNode.js (server)
Node.js SDK guide$ npm install @voltkit-rtc/serverPython (server)
Python SDK guide$ pip install voltkit-rtc-serverGo (server)
Go SDK guide$ go get github.com/voltkit-rtc/voltkit-rtc-server-goPHP (server)
PHP SDK guide$ composer require voltkit/rtc-serverJava (server, Spring Boot)
Java SDK guideimplementation("in.voltkit:voltkit-rtc-server:0.1.0")Flutter (iOS and Android apps)
Flutter SDK guide$ flutter pub add voltkit_rtcAndroid (Kotlin apps)
Android SDK guideimplementation("in.voltkit:voltkit-rtc:0.9.10")Native iOS (Swift)
In preview, not released yet. The Flutter SDK covers iOS apps today; for early access, email contact@voltkit.in.
iOS preview notes
Use cases
What teams build with it
- Voice chat roomsSpeakers on a stage, listeners in the room, seats and raise hand, with chat and music.Voice rooms
- Dating and friendship appsA room per match, voice first, video when both agree, call records by webhook.Calls for dating apps
- Live chatIn-app chat included with every room, and chat-only connections for people who only read along.In-app chat
Pricing in India: questions
Can I pay for a video API in rupees or with UPI?
Yes. VoltKit RTC is paid from one prepaid VoltKit Wallet that you recharge in Indian rupees through Razorpay's checkout, by UPI, card or net banking. There is no subscription and nothing renews by itself; the credits arrive once our server has verified the payment.
Is GST charged on recharges?
No GST is added to recharges at present: a ₹1,000 (≈ $10.5) recharge costs ₹1,000. If GST applies later, the quote and the receipt show it before you pay, and only recharges made after the change are affected.
What is a participant-minute?
One participant connected for one minute = one participant-minute. Ten people in a room for six minutes use 60 participant-minutes. Usage is recorded in seconds and billed per participant-second, so a session is never rounded up to the next minute.
Does video cost more than voice?
Yes. Standard voice is ₹39 (≈ $0.41) and HD voice ₹49 (≈ $0.52) per 1,000 participant-minutes; Full HD video is ₹99 (≈ $1.04), and it already includes HD audio, so a participant on video is never charged for video plus audio. Each participant is billed one rate at a time: the highest of what they send and what they receive, recorded every 5 seconds and charged per second.
Are chat messages, tokens or webhooks billed?
No. Only participants connected to a room are billed, viewers included. Chat messages, chat-only connections, API calls, tokens, webhooks and in-app music are not billed; chat draws on a daily message allowance that grows with your live minutes.
Do unused credits or minutes expire?
Free, trial and previously bought minutes never expire, and they are always used before wallet credits. Bonus credits from an offer or coupon may expire after the number of days the recharge page shows before you pay.
Can I get a refund?
Paid credits you have not used can be refunded within 7 days of the recharge. The bonus that came with that recharge is removed in proportion, and a charge marked non-refundable is kept. The refund policy has the details.
Is there a free trial?
Yes. Each account gets a one-time testing trial of 2,500 free participant-minutes on its first project, at any quality. Until your first paid recharge, rooms in that project hold up to 25 people; the unused trial minutes stay with the project and are used first.
Start with a free account
Create an account, make an RTC project and recharge your wallet in rupees when you are ready. Planning a launch and want to talk it through first? Write or message us.
Talk to us:contact@voltkit.inWhatsApp