100ms.live

One-line introduction

100ms.live is a U.S.-based API provider focused on real-time audio and video communications, offering video calling, live streaming, and interactive SDKs for global apps as an alternative to Twilio and Agora. Developers mainly choose it because it emphasizes greater freedom for custom UI design and relatively flexible pricing, making it suitable for real-time interactive scenarios that require deep interface customization.

Business overview

100ms.live was founded around 2020, with a core team from Silicon Valley companies such as Facebook and WhatsApp. It positions itself as “developer-first” real-time communications infrastructure. Its business centers on SDKs and APIs for use cases such as real-time video calls, including one-to-one and group calls, live streaming ingest and playback, screen sharing, recording, and replay. Its customers span global-facing sectors such as education, healthcare, social apps, and remote collaboration. In terms of market position, it is an emerging challenger behind Twilio and Agora. While its market share is far smaller than those two, it has a good reputation for flexibility and custom UI capabilities. Typical customers are small and mid-sized global teams and indie developers, though some mid-to-large enterprises are also testing its services.

Who it is best for

This service is best suited for three types of users. First, developers of global social or live-streaming apps who need to integrate audio/video features quickly while keeping full control over UI design. Second, small teams or individual developers, because its documentation is clear, examples are rich, and the learning curve is relatively low. Third, users migrating from Agora or Twilio who want more flexible pricing or a simpler API. It is less suitable for purely China-based users, because its mainland China network optimization is average; large real-time games with extreme ultra-low-latency requirements of <100ms; and projects that need fully managed UI components rather than custom UI.

Key features and highlights

• Highly customizable UI: Provides a headless SDK, allowing developers to fully control the interface style without being locked into any prebuilt components.
• Real-time video calls and live streaming: Supports one-to-one calls, group meetings, and large-scale live streaming ingest/playback, with latency controllable within 200ms.
• Screen sharing and recording: Includes built-in screen sharing APIs and supports cloud recording and replay, useful for education and meeting apps.
• Cross-platform SDKs: Offers SDKs for mainstream platforms including iOS, Android, Web, React Native, and Flutter, making multi-platform development easier.
• Flexible Room management: Supports dynamic room creation and role-based permissions, such as host/audience roles, making it suitable for complex interactive scenarios.
• Open-source examples and quick integration: Officially provides complete sample projects in multiple languages and frameworks, allowing developers to get a demo running within 10 minutes.

Pricing analysis

100ms.live does not publicly list a monthly fee and uses usage-based billing. Exact pricing requires contacting sales or checking the official website. Based on public information, its video call pricing is about $0.004/minute per participant, slightly lower than Twilio’s $0.0045/minute but higher than Agora’s $0.00399/minute. Live streaming and recording are billed separately. Overall, it sits in the mid-to-high price range, but considering its UI customization flexibility, it can offer good value for projects that need deep customization. There is no clear refund policy, so it is recommended to test with the free allowance first—new users typically get 10,000 free minutes—before committing to paid usage.

How Chinese users can use it

In terms of network access, 100ms.live is basically usable in mainland China, but its latency and stability are not as good as domestic providers such as Tencent Cloud TRTC and ZEGO. In practical tests during off-peak hours, mainland users making video calls through its SDK saw latency of around 200-400ms, with occasional packet loss. For payments, the official website supports credit cards, including Visa and Mastercard, and PayPal. It does not support Alipay or WeChat Pay, and it cannot issue Chinese fapiao, only U.S. invoices. Whether a VPN is needed: SDK integration does not require one, but using a VPN is recommended for accessing the website and admin console, otherwise loading can be slow. Recommended domestic alternatives include Tencent Cloud TRTC, which offers low latency and supports fapiao; Agora, which has strong overseas coverage; and ZEGO, which offers good value for money.

Pros and cons

Pros:

• ✅ Extremely high freedom for custom UI, suitable for brand-specific customization needs
• ✅ Clear documentation, rich examples, and fast onboarding for developers
• ✅ Supports multi-platform SDKs, including Flutter and React Native
• ✅ Free allowance available for low-cost testing
• ✅ Good overseas node coverage, suitable for global apps

Cons:

• ❌ Average network optimization in mainland China, with weaker latency and stability than domestic competitors
• ❌ Does not support Alipay or WeChat Pay, and cannot issue Chinese fapiao
• ❌ No clear refund policy, and usage-based billing may lead to cost overruns
• ❌ Smaller market share, with fewer community resources and third-party plugins
• ❌ No obvious price advantage in high-traffic scenarios

Comparison with similar products

• Agora（声网）: An established market player with good domestic network coverage, support for Alipay payments and fapiao, but relatively more cumbersome custom UI work and slightly higher pricing.
• Twilio Video: Mature ecosystem and strong documentation, but it has stopped accepting new users for its Video product, and its custom UI flexibility is not as strong as 100ms.
• 腾讯云 TRTC: Offers the lowest latency in China, under 100ms, supports WeChat Pay/Alipay and fapiao, but has weaker overseas node coverage, making it better suited for China-focused apps.

Final recommendation

100ms.live is best suited for real-time audio/video applications that need highly customizable UI, such as global social apps, remote education, and online healthcare, especially when the target users are mainly overseas. If you require strong UI control, your team has frontend customization capabilities, and you do not mind occasional network fluctuations in mainland China, it is worth testing first with its 10,000-minute free allowance. It is not suitable for purely China-based users, large games with extremely low latency requirements, or teams that need Chinese fapiao or Alipay payments. The recommended approach is to start with the free trial, verify that the network experience and API flexibility meet your needs, and then pay as you go.