Pinnacle · Apr 2026
Argues that RCS interaction telemetry is the real value of the channel and claims Pinnacle automatically captures and normalizes the full interaction surface.
API & SDK for RCS (the next-generation of texting)
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Updated Jul 29, 2026
Overview
Pinnacle is a San Francisco-based YC S24 developer platform that provides an API, SDKs, dashboard, and compliance tooling for sending SMS, MMS, and especially RCS business messages, with built-in fallback and analytics for richer customer messaging.
Primary product
RCS and SMS business messaging API and SDK platform
Founded
2024
Headquarters
San Francisco, California, United States
Team size
1-10
Industry
Software Development
Sub-industry
Rich Communication Services (RCS) / business messaging API
Business model
usage-based per-message pricing
Open Positions
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