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United States Postal Service Domestic Prices API

Domestic postage pricing and rate calculation operations

United States Postal Service Domestic Prices API is one of 12 APIs that United States Postal Service publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 9 JSON Schema definitions.

Tagged areas include Domestic Prices. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, and 9 JSON Schemas.

This API exposes 3 operations across 3 paths, and defines 7 schemas. It is described by OpenAPI 3.1.0, at version 3.0.

Requests are made against 2 base URLs: https://apis.usps.com, https://apis-tem.usps.com.

3 operations 3 paths 7 schemas 3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
3.0
Base URL
https://apis.usps.com
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

United States Postal Service Domestic Prices API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — OAuth 2.0 Bearer Token obtained from the USPS OAuth API.

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 POST. Each is listed below with its method, path, parameters, and response codes.

Domestic Prices 3

Domestic postage pricing and rate calculation operations

POST
/prices/v3/base-rates/search
USPS Domestic Prices Search Base Rates
searchBaseRates body → 200400401
POST
/prices/v3/extra-service-rates/search
USPS Domestic Prices Search Extra Service Rates
searchExtraServiceRates body → 200400401
POST
/prices/v3/total-rates/search
USPS Domestic Prices Search Total Rates
searchTotalRates body → 200400401

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are BaseRateRequest (10 properties), TotalRateRequest (8 properties), ExtraServiceRateRequest (5 properties), Error (2 properties). Each schema is shown below with its type and property counts.

RateResponse
object
Base rate search response.
1 property
BaseRateRequest
object
Request parameters for base rate search.
10 properties 4 required
Error
object
API error response.
2 properties
TotalRateRequest
object
Request parameters for total rate search.
8 properties 4 required
TotalRateResponse
object
Total rate response including base and extra service rates.
1 property
ExtraServiceRateRequest
object
Request parameters for extra service rate search.
5 properties 2 required
ExtraServiceRateResponse
object
Extra service rate response.
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

united-states-postal-service-domestic-prices-api-openapi.yml Raw ↑

Other APIs United States Postal Service publishes across the network.

USPS International Prices API
USPS Domestic Labels API
USPS International Labels API
USPS Locations API
USPS Service Standards API
USPS Shipping Options API
USPS SCAN Forms API
USPS OAuth API
United States Postal Service Addresses API
United States Postal Service Carrier Pickup API
United States Postal Service Tracking API
Where this information came from

This is an independent, third-party profile of United States Postal Service Domestic Prices API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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