1.0 Introduction to Web Tools

This document contains a Reference Guide to the Package Service Standards APIs. See the Developers Guide to learn the administrative process for gaining access to the Web Tools APIs as well as the basic mechanism for calling the APIs and processing the results. The Developer’s Guide also contains information on testing and troubleshooting.

Nota: The Request Parameter sections present the XML input tags for generating live requests along with the restrictions on the values allowed. An error message will be returned if an incorrect value is entered. Also, be aware of the maximum character amounts allowed for some tags. If the user enters more than those amounts, an error will not be generated. Web Tools will simply pass in the characters up to the maximum amount allowed and disregard the rest. This is important since the resulting value could prevent a correct response.

When building the XML request, pay particular attention to the order and case for tags. An error message will be returned if an incorrect value is entered. Remember that all data and attribute values in this document are for illustration purposes and are to be replaced by your actual values. For instance, a line of sample code may be:

In this instance, you will replace “12345” with the destination Zip Code for your request.

1.1 Before you get started:

For information on registering and getting started with Web Tools, please refer to the Step-By-Step guide found on the Web Tools Technical Documentation Page.

2.0 Priority Mail Service Standards API

2.1 Overview

The Priority Mail Service Standards API receives requests and returns the number of days (on average) it will take a Priority Mail package to arrive at its destination. Ensure that end-users understand that these are service standards and not guaranteed commitments. The Priority Mail Service Standards API processes a single request.

2.1.1 API Signature Table

Scheme	Host	Path	API	XML
https://	secure.shippingapis.com	/ShippingAPI.dll?	API=PriorityMail	&XML=(see below)

2.2 Request Descriptions

Tag Name

Occurs

Descripción

Tipo

Validation

PriorityMailRequest

Obligatorio

(Alias)

PriorityMailRequest / USERID

Obligatorio

This attribute specifies your Web Tools user ID. See the Developer's Guide for information on obtaining your USERID.

Por Ejemplo: USERID="XXXXXXX"

NMTOKEN

PriorityMailRequest / PASSWORD

Optional

This attribute specifies your Web Tools password. See the Developer's Guide for information on your Password.

Por Ejemplo: PASSWORD="XXXXXXX"

NMTOKEN

PriorityMailRequest / OriginZip

Obligatorio

Origination and destination Zip Codes must be valid. Either the first 3 digits or first 5 digits of the Zip Code are entered between the open tag and close tag.

Por ejemplo:

String

PriorityMailRequest / DestinationZip

Obligatorio

Origination and destination Zip Codes must be valid and must be 5 digits.

Por ejemplo: <DestinationZip>20770</DestinationZip>

String

PriorityMailRequest / DestinationType

Optional

Destination Type for package.

Valid Values:

“1” = PO-Addressee – Street (Default Value)

“2” = PO-Addressee – PO Box

“3” = Hold For Pick-up

Por ejemplo: <DestinationType>1</DestinationType>

String

Enumeration

· 1

· 2

· 3

PriorityMailRequest / PMGuarantee

Optional

Default “N”

Boolean

PriorityMailRequest / MailClass

Obligatorio

Defines mail class for commitment data.

Mail Class Value	Descripción
2	priority mail
201	Priority Mail 1-Day (Deprecated)
202	Priority Mail 2-Day (Deprecated)
203	Priority Mail 3-Day (Deprecated)
204	Priority Mail Military
205	Priority Mail DPO
206	Priority Mail Offshore

Por ejemplo:

Nota: When <MailClass>=”201, 202, or 203”, 1-Day, 2-Day and/or 3-Day references will be removed from response data and a single XML response for Priority Mail service standards will return.

String

minOccurs="1" maxOccurs="1"

Enumeration

· 2

· 201

· 202

· 203

· 204

· 205

· 206

PriorityMailRequest

Required once

(Alias)

2.2.1 Sample Request

Request: PriorityMail:

</PriorityMailRequest>

2.3 Response Descriptions

Tag Name	Occurs	Descripción	Tipo	Validation
PriorityMailResponse	Obligatorio		(Alias)
PriorityMailResponse / OriginZip	Obligatorio	OriginationZip sent in request.	String
PriorityMailResponse / DestinationZip	Obligatorio	DestinationZip sent in request.	String
PriorityMailResponse / Days	Optional	Numbers of days expected to deliver.	String
PriorityMailResponse / IsGuaranteed	Optional	Is the delivery guaranteed.	String
PriorityMailResponse / Message	Optional	Service Standards Messaging. Appears when applicable. For example:<Msg>Your shipment may be delayed due to transportation issues.</Msg>	String
PriorityMailResponse / EffectiveAcceptanceDate	Optional	Effective Acceptance Date is returned when <DestinationType> is specified in the request.	String
PriorityMailResponse / ScheduledDeliveryDate	Optional	Scheduled Delivery Date is returned when <DestinationType> is specified in the request.	String
PriorityMailResponse	Obligatorio		(Alias)

2.3.1 Sample Response

Response: PriorityMail

</PriorityMailResponse>

3.0 Package Services “StandardB” API

3.1 Overview

The Package Services “StandardB” API receives requests and returns the average number of days it will take a package to arrive at its destination. There are four types of Package Services: Standard Post, Bound Printed Matter, Library Mail, and Media Mail. The Package Services “StandardB” API processes a single request. Ensure that end-users understand that these are service standards and not guaranteed commitments.

3.1.1 API Signature Table

Scheme	Host	Path	API	XML
https://	secure.shippingapis.com/	shippingapi.dll?	API=StandardB	&XML=(see below)

3.2 Request Descriptions

Tag Name

Occurs

Descripción

Tipo

Validation

StandardBRequest

Obligatorio

(Alias)

StandardBRequest / USERID

Obligatorio

This attribute specifies your Web Tools user ID. See the Developer's Guide for information on obtaining your USERID.

Por Ejemplo: USERID="XXXXXXX"

NMTOKEN

StandardBRequest / PASSWORD

Optional

This attribute specifies your Web Tools password. See the Developer's Guide for information on your Password.

Por Ejemplo: PASSWORD="XXXXXXX"

NMTOKEN

StandardBRequest / OriginZip

Obligatorio

Origination and destination Zip Codes must be valid. Either the first 3 digits or first 5 digits of the Zip Code are entered between the open tag and close tag.

Por ejemplo:

String

StandardBRequest / DestinationZip

Obligatorio

Origination and destination Zip Codes must be valid and must be 5 digits.

Por ejemplo:

String

StandardBRequest / DestinationType

Optional

Destination Type for package.

Valid Values:

“1” = PO-Addressee – Street (Default Value)

“2” = PO-Addressee – PO Box

“3” = Hold For Pick-up

Por ejemplo: <DestinationType>1</DestinationType>

String

Enumeration

· 1

· 2

· 3

StandardBRequest / MailClass

Obligatorio

Defines mail class for commitment data.

Mail Class Value	Descripción
6	Servicios de paquetes
601	Parcel Select (Deprecated)
602	Standard Post
603	Media Mail
604	Correo para bibliotecas
605	Material impreso encuadernado

Por ejemplo:

String

minOccurs="1" maxOccurs="1"

Enumeration

· 6

· 601

· 602

· 603

· 604

· 605

StandardBRequest

Obligatorio

(Alias)

3.2.1 Sample Request

Test XML Request:

</StandardBRequest>

3.3 Response Descriptions

Tag Name	Occurs	Descripción	Tipo	Validation
StandardBResponse	Obligatorio		(Alias)
StandardBResponse / OriginZip	Obligatorio	OriginationZip sent in request.	String
StandardBResponse / DestinationZip	Obligatorio	DestinationZip sent in request.	String
StandardBResponse / Days	Optional	Numbers of days expected to deliver.	String
StandardBResponse / Message	Optional	Service Standards Messaging. Appears when applicable. For example:<Msg>Your shipment may be delayed due to transportation issues.</Msg>	String
StandardBResponse / EffectiveAcceptanceDate	Optional	Effective Acceptance Date is returned when <DestinationType> is specified in the request.	String
StandardBResponse / ScheduledDeliveryDate	Optional	Scheduled Delivery Date is returned when <DestinationType> is specified in the request.	String
StandardBResponse	Obligatorio		(Alias)

3.3.1 Sample Response

Test XML Response:

</StandardBResponse>

4.0 First Class Mail Service Standards API

4.1 Overview

The First Class Mail Service Standards API receives requests and returns the average number of days it will take a package to arrive at its destination. The First Class Mail Service Standards API processes a single request. Ensure that end-users understand that these are service standards and not guaranteed commitments. Nota: Effective July 9^th, 2023, First-Class Package Service was replaced with Ground Advantage. The First Class Mail Service Standards API supports First-Class Mail flats and Ground Advantage parcels.

4.1.1 API Signature Table

Scheme	Host	Path	API	XML
https://	secure.shippingapis.com/	shippingapi.dll?	API=FirstClassMail	&XML=(see below)

4.2 Request Descriptions

Tag Name

Occurs

Descripción

Tipo

Validation

FirstClassMailRequest

Obligatorio

(Alias)

FirstClassMailRequest / USERID

Obligatorio

This attribute specifies your Web Tools user ID. See the Developer's Guide for information on obtaining your USERID.

Por Ejemplo: USERID="XXXXXXX"

NMTOKEN

FirstClassMailRequest / PASSWORD

Optional

This attribute specifies your Web Tools password. See the Developer's Guide for information on your Password.

Por Ejemplo: PASSWORD="XXXXXXX"

NMTOKEN

FirstClassMailRequest / OriginZip

Obligatorio

Origination and destination Zip Codes must be valid. Either the first 3 digits or first 5 digits of the Zip Code are entered between the open tag and close tag.

Por ejemplo:

String

FirstClassMailRequest / DestinationZip

Obligatorio

Origination and destination Zip Codes must be valid and must be 5 digits.

Por ejemplo:

String

FirstClassMailRequest / DestinationType

Optional

Destination Type for package.

1 = PO-Addressee – Street (Default)

2 = PO-Addressee – PO Box

3 = Hold For Pick-up

Por ejemplo:

String

Enumeration

· 1

· 2

· 3

FirstClassMailRequest / MailClass

Obligatorio

Defines mail class for commitment data.

Mail Class Value	Descripción
3	USPS Ground Advantage (up to 15.999 oz)
301	Cartas de First-Class Mail
302	First-Class Mail Flats
303	First-Class Mail Cards
304	USPS Ground Advantage (up to 15.999 oz)

Por ejemplo:

String

minOccurs="1" maxOccurs="1"

Enumeration

· 3

· 301

· 302

· 303

· 304

FirstClassMailRequest

Required once

(Alias)

4.2.1 Sample Request

Request: FirstClassMail

</FirstClassMailRequest>

4.3 Response Descriptions

Tag Name	Occurs	Descripción	Tipo	Validation
FirstClassMailResponse	Obligatorio		(Alias)
FirstClassMailResponse / OriginZip	Obligatorio	OriginationZip sent in request.	String
FirstClassMailResponse / DestinationZip	Obligatorio	DestinationZip sent in request.	String
FirstClassMailResponse / Days	Optional	Numbers of days expected to deliver.	String
FirstClassMailResponse / Message	Optional	Service Standards Messaging. Appears when applicable. For example:<Msg>Your shipment may be delayed due to transportation issues.</Msg>	String
FirstClassMailResponse / EffectiveAcceptanceDate	Optional	Effective Acceptance Date is returned when <DestinationType> is specified in the request.	String
FirstClassMailResponse / ScheduledDeliveryDate	Optional	Scheduled Delivery Date is returned when <DestinationType> is specified in the request.	String
FirstClassMailResponse	Obligatorio		(Alias)

4.3.1 Sample Response

Response FirstClassMail:

</FirstClassMailResponse>

5.0 Express Mail Service Commitments API

5.1 Overview

The Express Mail Service Commitments API provides delivery commitments for Express Mail packages for the given Zip Codes to include package drop-off information. A user provides an origination and a destination Zip Code and an optional current or future date that the package will be shipped.

5.1.1 API Signature Table

Scheme	Host	Path	API	XML
https://	secure.shippingapis.com/	shippingapi.dll?	API=ExpressMailCommitment	&XML=(see below)

5.2 Request Descriptions

Tag Name	Occurs	Descripción	Tipo	Validation
ExpressMailCommitmentRequest	Obligatorio		(Alias)
ExpressMailCommitmentRequest / USERID	Obligatorio	This attribute specifies your Web Tools user ID. See the Developer's Guide for information on obtaining your USERID. Por Ejemplo: USERID="XXXXXXX"	NMTOKEN
ExpressMailCommitmentRequest / PASSWORD	Optional	This attribute specifies your Web Tools password. See the Developer's Guide for information on your Password. Por Ejemplo: PASSWORD="XXXXXXX"	NMTOKEN
ExpressMailCommitmentRequest / OriginZIP	Obligatorio	5 Digit Zip Code of the package destination. Por ejemplo: <OriginZIP>90210</OriginZIP>	String
ExpressMailCommitmentRequest / DestinationZIP	Obligatorio	Origination and destination Zip Codes must be valid and must be 5 digits. Por ejemplo: <DestinationZIP>20770</DestinationZIP>	String
ExpressMailCommitmentRequest / Date	Obligatorio	Date package is shipped. Can be left blank. Can use formats MM/DD/YYYY or DD-MMM-YYYY. Por ejemplo: <Date>05-May-2014</Date>	String
ExpressMailCommitmentRequest / DropOffTime	Optional	Time package is shipped. This tag can be omitted or left blank. Use format HH:MM such as 13:30. Por ejemplo: <DropOffTime>15:00</ DropOffTime >	String
ExpressMailCommitmentRequest / ReturnDates	Optional	Indicates if Scheduled Delivery and Effective Acceptance dates should be returned. Specify ‘true’ or ‘false’. Por ejemplo: <ReturnDates>verdadero</ReturnDates>	String
ExpressMailCommitmentRequest / PMGuarantee	Optional	Indicator to display Guarantee information for applicable service types. “Y” = Yes, display “N” = No, do not display (Default Value)	String	Enumeration · Y · N
ExpressMailCommitmentRequest	Obligatorio		(Alias)

5.2.1 Sample Request

Request: ExpressMailCommitment

<ReturnDates>verdadero</ReturnDates>

</ExpressMailCommitmentRequest>

5.3 Response Descriptions

Tag Name

Occurs

Descripción

Tipo

Validation

ExpressMailCommitmentResponse

Obligatorio

(Alias)

ExpressMailCommitmentResponse / OriginZIP

Obligatorio

OriginationZip sent in request.

String

ExpressMailCommitmentResponse / OriginCity

Obligatorio

Originating City.

String

ExpressMailCommitmentResponse / OriginState

Obligatorio

Originating State.

String

ExpressMailCommitmentResponse / DestinationZIP

Obligatorio

DestinationZip sent in request.

String

ExpressMailCommitmentResponse / DestinationCity

Obligatorio

Destinating City.

String

ExpressMailCommitmentResponse / DestinationState

Obligatorio

Destinating State.

String

ExpressMailCommitmentResponse / Date

Obligatorio

Date package shipped.

String

ExpressMailCommitmentResponse / Time

Obligatorio

Time.

String

ExpressMailCommitmentResponse / ExpeditedTransMessage

Optional

Expedited Transportation Message. Returned when applicable and the request has the ReturnDates set to true.

String

ExpressMailCommitmentResponse / MsgCode

Optional

Message Code. Returned when applicable and the request has the ReturnDates set to true.

Valid Message Code

“TM103” = Your shipment may be delayed due to transportation issues.

String

Enumeration=

· TM103

ExpressMailCommitmentResponse / Msg

Optional

Message Text. Returned when applicable and the request has the ReturnDates set to true.

For example:<Msg>Your shipment may be delayed due to transportation issues.</Msg>

String

ExpressMailCommitmentResponse / EffectiveAcceptanceDate

Optional

Effective Acceptance Date. Returned when the request has the ReturnDates set to true.

String

ExpressMailCommitmentResponse / Commitment

Optional

Holds the details of a commitment. Returned if valid.

(Group)

ExpressMailCommitmentResponse / Commitment / Name

Optional

Commitment Name

String

Enumeration=

· 1-Day

· 2-Day

· 3-Day

· DPO

· Military

ExpressMailCommitmentResponse / Commitment / Time

Optional

Commitment Time. (eg: 6:00 p.m.)

String

ExpressMailCommitmentResponse / Commitment / Sequence

Optional

Commitment Sequence

Seq #	Service Standard
A0118	1-Day at 6:00 p.m.
B0118	1-Day at 6:00 p.m.
A0218	2-Day at 6:00 p.m.
B0218	2-Day at 6:00 p.m.

String

Enumeration=

· A0118

· B0118

· A0218

· B0218

ExpressMailCommitmentResponse / Commitment / Location

Optional

Groups drop off location information.

(Group)

ExpressMailCommitmentResponse / Commitment / Location / ScheduledDeliveryDate

Optional

Fecha de entrega programada. Returned when the request has the ReturnDates set to true.

String

ExpressMailCommitmentResponse / Commitment / Location / CutOff

Optional

Cut-Off Time.

String

ExpressMailCommitmentResponse / Commitment / Location / Facility

Optional

Facility Type

String

Enumeration=

· POST OFFICE

· PRIORITY MAIL EXPRESS COLLECTION BOX

· AIR MAIL FACILITY

ExpressMailCommitmentResponse / Commitment / Location / Street

Optional

Facility Street

String

ExpressMailCommitmentResponse / Commitment / Location / City

Optional

Facility City

String

ExpressMailCommitmentResponse / Commitment / Location / State

Optional

Facility State

String

ExpressMailCommitmentResponse / Commitment / Location / Zip

Optional

Facility Zip Code

String

ExpressMailCommitmentResponse / Commitment / Location / IsGuaranteed

Optional

Indicates if Guaranee is offered. Will only be returned if the PMGuarantee in the request is set to “Y”.

1 = Guaranteed

2 = No Guarantee

3 = Temporary No Guarantee

String

Enumeration=

· 1

· 2

· 3

ExpressMailCommitmentResponse / Message

Optional

Message indicating over 200 location, when there are more than the 200 returned.

String

ExpressMailCommitmentResponse

Obligatorio

(Alias)

5.3.1 Sample Request

Response: ExpressMailCommitment

<OriginCity>SAINT LOUIS</OriginCity>

<Facility>EN OFICINA POSTAL</Facility>

<Street>55 GRASSO PLZ</Street>

<City>SAINT LOUIS</City>

</Location>

</Commitment>

<Facility>EN OFICINA POSTAL</Facility>

<Street>55 GRASSO PLZ</Street>

<City>SAINT LOUIS</City>

</Location>

</Commitment>

</ExpressMailCommitmentResponse>