EasyPost vs Shippo: API comparison

The short answer

Both fit shipping workflows, but their validation contracts differ materially. EasyPost verification is triggered by parameter presence; Shippo v2 uses a GET request with separate recommendation and analysis fields. Port verification decisions and unit fields deliberately, not only the address-creation call.

Choose by the task you need to complete
Provider	A good reason to choose it	Important caveat
EasyPost	A shipping workflow already using EasyPost that needs verification results before proceeding to shipment and label operations.	Creating an Address object is not a passed verification. Including verify or verify_strict triggers verification even with false; omit the parameter to skip it. International AVS requires separate enablement.
Shippo	A checkout or shipping system that wants explicit address-change reasons before creating labels in the same platform.	The v2 validation request is GET and differs from legacy Address creation with validate=true. A partially_valid result and a recommended correction need a decision, not an automatic success label.

Side-by-side differences

EasyPost vs Shippo: documented interfaces, not benchmark scores
Requirement	EasyPost	Shippo
Validation approach	Verification associated with shipping Address objects	Validation with a recommended corrected address
Coverage boundary	Domestic checks; international AVS is separately enabled	US/global service; confirm country and account coverage
Decision signal	verifications success/errors, not Address creation alone	Validation value/reasons plus recommendation confidence
Apartment/unit handling	Preserve street2 and inspect correction/splitting behavior	Preserve address_line_2 and review changed_attributes
Workflow	Create-and-verify or verify an existing Address object	v2 GET validation; legacy POST validation is different
Cost driver	Account/service entitlement and verification workload	Standalone service entitlement and agreed address volume

Pricing: make the units comparable

Billing model and plan checks
Provider	Billing model	What to check
EasyPost	Shipping-account and address-service pricing	Confirm standalone address verification, international AVS and carrier-grade access on your account. Free label allowances or tracking prices are not standalone validation prices.
Shippo	Address Validation access and pricing through sales	Shippo directs Address Validation API pricing and access inquiries to sales. Do not substitute shipping-label fees or assume the standalone v2 service is included in an existing token's entitlement.

For 10,000 address checks, include retries and customer edits, not just completed orders. Count input addresses rather than batch HTTP calls. Compare the same country mix and postal evidence; a geocoding credit and a delivery-verification check do not buy the same result.

For a buying decision, calculate total spend divided by accepted outputs at your expected volume. Keep free evaluation access, paid production access, annual commitments and overages separate. We have not measured a cost or speed winner for this pair.

What changes in the integration?

Provider endpoints and input mapping
	EasyPost	Shippo
Method and URL	`POST https://api.easypost.com/v2/addresses`	`GET https://api.goshippo.com/v2/addresses/validate`
Authentication	HTTP Basic auth with the API key as username and an empty password	Authorization: ShippoToken token
Inputs	JSON address with street1/street2, city, state, zip and country; include verify or verify_strict deliberately	address_line_1, optional address_line_2, city_locality, state_province, postal_code and country_code
Output	Address object plus verifications with success, errors and details; strict verification fails when verification fails.	original_address, recommended_address, analysis.validation_result, changed_attributes and geodata when available.

EasyPost: migration check

Omit verify fields entirely when verification is not wanted; false is not an off switch. Distinguish strict API errors from non-strict verification errors before deciding whether a parcel may proceed.

Shippo: migration check

Replace legacy street1/city/zip mapping with v2 address_line_1/city_locality/postal_code. Parse analysis.validation_result rather than the legacy validation_results.is_valid field, and keep addresses out of request logs.

How to test them fairly

Use provider-approved test fixtures or addresses you have permission to process. Include international formats, accents, rural addresses and unit numbers. Do not generate arbitrary postal addresses or send private customer records without authorization.
Define expected outcomes for known-good records and approved negative cases before the run. Keep unsupported countries and missing evidence separate from invalid addresses.
Measure component correction, unit preservation and false rejection separately. A geocoder's building-level match is not confirmation of postal deliverability or of the person living there.
Record whether the API suggests a correction, confirms a delivery point or merely finds a location. Require customer confirmation when a suggested change could route a parcel elsewhere.
Count billed address checks, repeated checkout attempts, optional geocoding and batch records. Compare latency and cost per accepted decision on the same country mix. No validation result guarantees a successful future delivery.

Record the plan, request settings, time window and acceptance rules with every run. That makes a later result interpretable when a vendor changes a model, source set or pricing tier.

Prefer a common request format?

All Them APIs · Address Validation APIsPOST /api/v1/address-validation/validate

Review the request contract and tell us the coverage you need. Access requires enablement; this endpoint does not execute or bill requests yet.

View endpoint and request access

Sources and review dates

Documentation reviewed October 28, 2026. These are integration and plan comparisons, not measured speed or accuracy rankings. Availability, licensing and prices should be confirmed for the chosen plan.

Corrections: email faizank@docsalot.dev with an official source.