Mason
Mason (getmason.io), the company behind the ModeMagic Shopify app, is an AI-powered "agentic shopping engine" for ecommerce brands. Built by Kubric, the platform pairs merchandising, promotion, conversion and gamification AI agents with a developer platform for programmatic creative generation and commerce automation. Its public developer hub at getmason.dev documents a REST API (OAuth2 bearer, base host https://api.getmason.io) spanning app provisioning, template-driven image/creative generation (Genie), long-running creative tasks, asset search, webhook subscriptions, and a promotion/discount engine (Scrooge) for tiered, bulk and Buy-X-Get-Y discounts, plus a custom-checkout integration contract. Surfaced as a portfolio company of Accel, GGV Capital, Point Nine and Y Combinator; this profile was enriched by the API Evangelist pipeline from Mason's published OpenAPI, llms.txt and developer documentation.
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.
API Evangelist profiles Mason the way a machine reads it — 23 machine-readable artifacts across 6 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 — Mason scores 41.1/100 (developing), with a separate agent-readiness read of 33/100 (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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Mason's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/mason/"
title="Mason on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/mason.svg"
alt="Mason Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/mason/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/mason/"
title="Mason on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/mason/card.svg"
alt="Mason Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Mason
Each block below is one kind of artifact we hold for Mason. 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 8
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.
Mason Apps API
The Apps API from Mason — 2 operation(s) for apps.
Mason Create Image API
The Create Image API from Mason — 1 operation(s) for create image.
Mason Images API
The Images API from Mason — 2 operation(s) for images.
Mason Retrieve an Image API
The Retrieve an Image API from Mason — 1 operation(s) for retrieve an image.
Mason Search API
The Search API from Mason — 1 operation(s) for search.
Mason Template Mappings API
The Template Mappings API from Mason — 1 operation(s) for template mappings.
Mason Tiered Discounts API
The Tiered Discounts API from Mason — 4 operation(s) for tiered discounts.
Mason Webhooks API
The Webhooks API from Mason — 2 operation(s) for webhooks.
Scroll within the panel for all 8 ·
Open Collections 9
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).
API Collection
OPEN COLLECTIONMason Apps API
OPEN COLLECTIONMason Apps Create Image API
OPEN COLLECTIONMason Apps Images API
OPEN COLLECTIONMason Apps Retrieve an Image API
OPEN COLLECTIONMason Apps Search API
OPEN COLLECTIONMason Apps Template Mappings API
OPEN COLLECTIONMason Apps Tiered Discounts API
OPEN COLLECTIONMason Apps Webhooks API
OPEN COLLECTIONScroll within the panel for all 9 ·
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.
Mason Webhooks
ASYNCAPISecurity 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.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
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.
Resources
Every other property we hold for Mason — 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 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/mason · machine-readable index on apis.io
This is an independent, third-party profile of Mason, 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.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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