Postscript
Postscript is an SMS and RCS marketing platform built for Shopify brands, covering list growth, campaign and automation delivery, conversational messaging, AI shopping assistants and TCPA compliance. Its developer surface is the Partner API v2 at api.postscript.io, a twenty-operation REST API authen
Postscript is an API provider whose private shares are listed on 3 secondary markets: Forge Global, Hiive, Nasdaq Private Market.
Postscript publishes 1 API indexed on the APIs.io network.
Where It Trades
Listing data is compiled from the public marketplace pages of Forge Global, Hiive, EquityZen, Nasdaq Private Market, and Augment. A listing indicates that a venue has published a page for this company — it is not an offer, a quote, or investment advice, and APIs.io has no affiliation with any venue.
Work with this as data
Every listing here is available over the APIs.io API and to AI agents over MCP. Secondary Market is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.