Conversations, Reactions & More
New conversation threading, message reactions, validation endpoints, URL shortening, and an expanded MCP server.
What’s new?
Conversations API
Messages between a sender and recipient are now grouped into conversation threads — the backbone of inbox-style experiences.
- List conversations filtered by brand, campaign, sender, or receiver
- Get a conversation by ID or phone number pair
- List messages within a conversation with pagination
- Update conversation notes for internal tracking
Message reactions
React to messages with emoji using POST /messages/react. Messages support multiple reactions.
Message validation
Validate SMS, MMS, and RCS messages before sending — check segment count, encoding, unsupported files, and estimated cost without consuming credits.
URL shortener
Create tracked short links (pncl.to) with click analytics, configurable expiration, and updatable destinations.
MCP Server — 89 tools
The Pinnacle MCP server now exposes 89 tools (up from 71 at launch), covering conversations, webhooks, test agents, and more.
