Numverify ◆
Numverify is a phone number validation API that checks carrier, location, and line type in real time for 232 countries.

Sendbird provides APIs and SDKs that let you add real-time chat, voice, and video calling to your mobile or web app without building the infrastructure yourself. It powers in-app communication for companies like Reddit and DoorDash, handling scalability and reliability behind the scenes.
Best for app developers, marketplace platforms, and customer support teams that need reliable in-app messaging or calling features. It's designed for businesses ready to integrate at the API level and manage their own UI or use Sendbird's pre-built UI kits. Not ideal for non-developers seeking a plug-and-play chat widget with no code.
Marketplaces use Sendbird for buyer-seller messaging; support teams embed in-app chat for live help; social apps add group chat and voice rooms. Moderation, translation, and analytics come out of the box.
Editorial score from our review methodology — not user ratings.
Sendbird pricing: Free tier · from $399/mo. Billing model: Freemium.
Includes limited monthly active users (MAU) and basic chat features. No credit card required to start.
Includes 1,000 MAU, full chat SDK, voice & video calling, moderation tools, and analytics dashboard. Scales with usage-based pricing beyond the base tier.
All plans offer a free trial period. Contact Sendbird for custom enterprise pricing with higher MAU volumes and dedicated support.
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