Need help with your APIs? I offer API discovery, governance & evangelism services. Explore services →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Shippo website screenshot

Shippo

Shippo provides a robust shipping API architecture that helps developers drive efficiency at scale. The Shippo API covers the complete shipping lifecycle from pre-purchase rate shopping across 80+ carriers to label generation, package tracking, and returns management. SDKs are available for Python, JavaScript, PHP, Java, Ruby, and Node.js.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles Shippo the way a machine reads it — 68 machine-readable artifacts across 9 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Shippo scores 59.9/100 (developing), with a separate agent-readiness read of 59/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 59.9/100 · developing
Contract Quality 21.5 / 25
Developer Ergonomics 10.4 / 20
Commercial Clarity 9.5 / 20
Operational Transparency 3.4 / 13
Governance 6.3 / 12
Discoverability 8.8 / 10
Agent readiness — 59/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Shippo

Each block below is one kind of artifact we hold for Shippo. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 9

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Shippo Addresses API

Validate and manage shipping addresses

Shippo Carrier Accounts API

Manage carrier account integrations

Shippo Parcels API

Define parcel dimensions and weight

Shippo Rates API

Retrieve shipping rates from carriers

Shippo Refunds API

Request label refunds

Shippo Shipments API

Create and manage shipments

Shippo Tracking API

Track shipments across carriers

Shippo Transactions API

Purchase shipping labels

Shippo Webhooks API

Manage webhook subscriptions

Scroll within the panel for all 9 ·

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Shippo API

OPEN COLLECTION

Agent Skills 1

An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.

Packaged agent skills for driving this provider's APIs from an AI assistant.

shippo-official

AGENT SKILL

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Shippo GraphQL

Shippo is a multi-carrier shipping API that provides complete shipping functionality including address validation, rate shopping across 80+ carriers, label generation, package t...

GRAPHQL

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Shippo Plans Pricing

2 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Shippo Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 16

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

API Starter: 30 free labels/mo + 7¢/label
API Premier: custom volume discounts, 24/7 monitoring optional
40+ shipping carriers (USPS, FedEx, UPS, DHL, Royal Mail, Canada Post, etc.)
Address validation (US: included; non-US: $0.09 Starter, $0.06 Premier)
Tracking webhooks
Returns labels
Insurance
Rating across carriers
REST API at api.goshippo.com
Default 250 req/min/token
Bearer token auth
Webhooks for shipment, transaction, batch events
Carrier accounts management API
Customs documents API
Batch label creation
API calls not associated with labels billed at API Starter rates

Scroll within the panel for all 16 ·

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Shippo Webhooks

AsyncAPI 2.6 description of the Shippo Webhooks surface. Shippo delivers webhook events over HTTPS as POST requests to a subscriber-registered URL. Each delivery carries a JSON ...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Shippo Context

41 classes · 18 properties

JSON-LD

Spectral Rules 3

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Shippo API Rules

8 rules · 1 errors · 7 warnings

SPECTRAL

Shippo API Rules

5 rules · 4 warnings

SPECTRAL

Shippo API Rules

14 rules · 3 errors · 7 warnings

SPECTRAL

JSON Schema 24

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Address

16 properties

JSON SCHEMA

AddressCreateRequest

12 properties

JSON SCHEMA

AddressPaginatedList

4 properties

JSON SCHEMA

CarrierAccount

8 properties

JSON SCHEMA

CarrierAccountCreateRequest

4 properties

JSON SCHEMA

CarrierAccountPaginatedList

4 properties

JSON SCHEMA

Parcel

10 properties

JSON SCHEMA

ParcelCreateRequest

7 properties

JSON SCHEMA

ParcelPaginatedList

4 properties

JSON SCHEMA

Rate

14 properties

JSON SCHEMA

RatePaginatedList

2 properties

JSON SCHEMA

Refund

5 properties

JSON SCHEMA

RefundCreateRequest

2 properties

JSON SCHEMA

RefundPaginatedList

4 properties

JSON SCHEMA

Shippo Shipment

11 properties

JSON SCHEMA

ShipmentCreateRequest

7 properties

JSON SCHEMA

ShipmentPaginatedList

4 properties

JSON SCHEMA

TrackingStatus

10 properties

JSON SCHEMA

TrackingWebhookRequest

3 properties

JSON SCHEMA

Shippo Transaction

11 properties

JSON SCHEMA

TransactionCreateRequest

4 properties

JSON SCHEMA

TransactionPaginatedList

4 properties

JSON SCHEMA

Webhook

7 properties

JSON SCHEMA

WebhookCreateRequest

3 properties

JSON SCHEMA

Scroll within the panel for all 24 ·

JSON Structure 2

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Shippo Shipment Structure

0 properties

JSON STRUCTURE

Shippo Structure

0 properties

JSON STRUCTURE

Examples 2

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Shippo Authentication

http · 1 scheme

SECURITY

Shippo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Shippo Trust Center

SOC 2, PCI DSS

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Shippo Agentic Access

29 operations · 11 acting

29 operations · 11 acting

AGENTIC

Resources

Every other property we hold for Shippo — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 2

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Commercial 1

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/shippo · machine-readable index on apis.io