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.

Mason publishes 8 APIs on the APIs.io network, including Apps API, Create Image API, Images API, and 5 more. Tagged areas include Company, E-Commerce, Commerce, Artificial Intelligence, and Agents.

The Mason catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Mason’s developer surface includes authentication, documentation, API reference, getting-started guide, changelog, engineering blog, pricing, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.9/100 developing ▬ flat Agent 45/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessSelf serve

8 APIs 1 MCP Servers

Company E-Commerce Commerce Artificial Intelligence Agents Content Generation Discounts Promotions Webhook Shopify

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 43.9/100 · developing

Contract Quality 15.3 / 25

Developer Ergonomics 7.0 / 20

Access Clarity 7.6 / 20

Operational Transparency 3.8 / 13

Contract Governance 2.0 / 12

Discoverability 8.2 / 10

Agent readiness — 45/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/mason: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

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

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Mason Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

MCPServer

WellKnown

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

DataModel

Webhooks

Conformance

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

DomainSecurity

OAuthScopes

Authentication

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: mason
name: Mason
description: 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.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://media.getmason.io/api/assetlib/e5067013-1809-44f3-8847-8d66857625c7.png
url: https://raw.githubusercontent.com/api-evangelist/mason/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
- ggv-capital
- point-nine
- y-combinator
x-tier: enriched
x-tier-reason: has-public-api
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 31
  pass: local-v1
tags:
- Company
- E-Commerce
- Commerce
- Artificial Intelligence
- Agents
- Content Generation
- Discounts
- Promotions
- Webhook
- Shopify
tags_raw:
- Company
- Ecommerce
- Commerce
- AI
- Agents
- Content Generation
- Discounts
- Promotions
- Webhooks
- Shopify
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: mason:mason-apps-api
  name: Mason Apps API
  description: The Apps API from Mason — 2 operation(s) for apps.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/mason-apps-api-openapi.yml
- aid: mason:mason-create-image-api
  name: Mason Create Image API
  description: The Create Image API from Mason — 1 operation(s) for create image.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - CreateImage
  tags_raw:
  - Create Image
  properties:
  - type: OpenAPI
    url: openapi/mason-create-image-api-openapi.yml
- aid: mason:mason-images-api
  name: Mason Images API
  description: The Images API from Mason — 2 operation(s) for images.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/mason-images-api-openapi.yml
- aid: mason:mason-retrieve-an-image-api
  name: Mason Retrieve an Image API
  description: The Retrieve an Image API from Mason — 1 operation(s) for retrieve an image.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Retrieve an Image
  properties:
  - type: OpenAPI
    url: openapi/mason-retrieve-an-image-api-openapi.yml
- aid: mason:mason-search-api
  name: Mason Search API
  description: The Search API from Mason — 1 operation(s) for search.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/mason-search-api-openapi.yml
- aid: mason:mason-template-mappings-api
  name: Mason Template Mappings API
  description: The Template Mappings API from Mason — 1 operation(s) for template mappings.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Template Mappings
  properties:
  - type: OpenAPI
    url: openapi/mason-template-mappings-api-openapi.yml
- aid: mason:mason-tiered-discounts-api
  name: Mason Tiered Discounts API
  description: The Tiered Discounts API from Mason — 4 operation(s) for tiered discounts.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Tiered Discounts
  properties:
  - type: OpenAPI
    url: openapi/mason-tiered-discounts-api-openapi.yml
- aid: mason:mason-webhooks-api
  name: Mason Webhooks API
  description: The Webhooks API from Mason — 2 operation(s) for webhooks.
  humanURL: https://www.getmason.dev/reference
  baseURL: https://api.getmason.io
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/mason-webhooks-api-openapi.yml
common:
- type: Overlay
  url: overlays/mason-apps-overlay.yaml
- type: VulnerabilityDisclosure
  url: security/mason-vulnerability-disclosure.yml
- type: Security
  url: https://getmason.io/security/
- type: DomainSecurity
  url: security/mason-domain-security.yml
- type: AgenticAccess
  url: agentic-access/mason-agentic-access.yml
- type: OAuthScopes
  url: scopes/mason-scopes.yml
- type: Authentication
  url: authentication/mason-authentication.yml
- type: Website
  url: https://getmason.io/
- type: DeveloperPortal
  url: https://www.getmason.dev/
- type: Documentation
  url: https://www.getmason.dev/
- type: APIReference
  url: https://www.getmason.dev/reference
- type: GettingStarted
  url: https://www.getmason.dev/docs/getting-to-know-mason
- type: ChangeLog
  url: https://www.getmason.dev/changelog
- type: Blog
  url: https://getmason.io/feed/
- type: Pricing
  url: https://getmason.io/pricing/
- type: Login
  url: https://app.getmason.io/login
- type: TermsOfService
  url: https://getmason.io/termsofuse/
- type: PrivacyPolicy
  url: https://getmason.io/privacypolicy/
- type: GitHubOrganization
  url: https://github.com/kubric
- type: LLMsTxt
  url: llms/mason-llms.txt
- type: ErrorCatalog
  url: errors/mason-problem-types.yml
- type: Conventions
  url: conventions/mason-conventions.yml
- type: DataModel
  url: data-model/mason-data-model.yml
- type: Webhooks
  url: asyncapi/mason-webhooks.yml
- type: MCPServer
  url: mcp/mason-mcp.yml
- type: Conformance
  url: conformance/mason-conformance.yml
- type: WellKnown
  url: well-known/mason-well-known.yml
- type: Lifecycle
  url: lifecycle/mason-lifecycle.yml
- type: ChangeLog
  url: changelog/mason-changelog.yml
- type: AgentSkill
  url: skills/_index.yml