USPS GraphQL Schema
Conceptual GraphQL schema for the United States Postal Service (USPS) APIs. This schema models the capabilities exposed by the USPS REST API developer portal at [https://developer.usps.com/](https://developer.usps.com/), covering address validation, package tracking, label creation, domestic pricing, pickup scheduling, post office location, and service standards.
Overview
USPS GraphQL Schema is a GraphQL API specification published by USPS on the APIs.io network.
Conceptual GraphQL schema for the United States Postal Service (USPS) APIs. This schema models the capabilities exposed by the USPS REST API developer portal at https://developer.usps.com/, covering address validation, package tracking, label creation, domestic pricing, pickup scheduling, post office location, and service standards.
Tagged areas include Shipping, Postal, Address Validation, Tracking, and Labels.
Endpoint
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Every GraphQL schema here is available over the APIs.io API and to AI agents over MCP.
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Tools for graphql
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find_graphqlBrowse and filter every GraphQL schema in the catalog.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.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/graphql/usps-graphql"curl "https://apis.io/api/v1/graphql?limit=25"Discovery needs no key. Ratings and market analysis are Pro.