| What it does | Real-time billing infrastructure for AI products
| The cheapest way to make international calls from your browser
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Freemium
| Paid
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| Pricing | Free tier: first 10 active wallets per month free, full API access in test mode. Production: $1 per active wallet per month (active = at least one transaction in billing month). First 1M events per month free. Volume discounts available.
| Credits starting from $5 up to $100. Call rates vary by destination country. 25% off first top-up with code DF25.
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| Key features | - Real-time usage metering and authorization before costs are incurred
- Multi-asset wallets supporting USD, tokens, GPU hours, or custom units
- Branded customer billing portal with self-service top-ups and history
- Per-customer profitability analytics and event-level cost tracking
- Support for usage-based, subscription, hybrid, credits, and seat-based pricing models
- Hard budget ceilings per customer, agent, or team with real-time enforcement
- Automatic top-up functionality when balance falls below customer-set threshold
- MCP server integration for AI coding tools without backend required
- REST API, OpenAPI spec, SDKs, and webhooks for developers
| - Browser-based calling without app downloads
- Instant account setup in minutes
- Works on desktop, tablet, and mobile devices
- HD voice quality
- Dedicated or existing caller ID
- Global coverage to over 200 countries
- WebRTC end-to-end encryption
- Call history visibility
- Mobile app availability
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| What makes it different | - Real-time billing for usage incurred in milliseconds, not month-end invoicing
- No revenue percentage cuts or payment processing markups, only per-wallet fees
- Built by payment infrastructure engineers from Checkout.com, Visa, TrueLayer, and SumUp
- Originated from Revenew platform that analyzed $1B/month in revenue
| - No app download required - calls directly in browser
- Transparent pay-as-you-go pricing with no hidden fees
- Credits never expire
- Low minimum credit purchase starting at $5
- Enterprise-grade security with WebRTC encryption
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 18 ● no change since last check | 30 ● no change since last check |
| Trust Flow (Majestic) | 18 | 10 |
| Citation Flow (Majestic) | 33 | 23 |
| Referring domains (Majestic) | 685 | 36 |