smsriver.com

Instant Telecom Verification & Developer Carrier Inboxes.

Receive OTP codes in real time with programmatic REST endpoints, webhooks, and Model Context Protocol (MCP) tooling.

“SMSRiver replaced our flaky physical test SIM racks with instantaneous API endpoints. We cut test suite run times from 40 seconds to under 2 seconds.”

Alex Kim

Lead Telecom Engineer, SendGrid Alumni

Trusted by 3,800+ developer and QA engineering teams

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