Trades on 1 secondary market

United States Postal Service

The United States Postal Service (USPS) provides a modern REST API platform at developers.usps.com that gives ecommerce websites, shipping software, and logistics systems access to postal data and services. APIs cover address validation, package tracking, domestic and international shipping labels,

thin 36.4 / 100 12 APIs View provider profile →
GovernmentPostal ServiceShippingLogisticsAddress ValidationPackage Tracking

United States Postal Service is an API provider whose private shares are listed on 1 secondary market: EquityZen.

United States Postal Service publishes 12 APIs indexed on the APIs.io network.

Where It Trades

EZ EquityZen View listing →

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.

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Tools for secondary market

3 MCP tools reach this
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
Search the catalog 
curl "https://apis.io/api/v1/search?q=united-states-postal-service&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/united-states-postal-service"

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