Subbly

Subbly is a subscription-first commerce platform for building and running subscription boxes, memberships, and recurring-product businesses without code. Alongside the no-code storefront and merchant admin, Subbly ships a developer surface for headless and custom builds: the SubblyCart.js embeddable cart widget and the Subbly.js SDK (@subbly/sdk), a browser-side client that talks to Subbly's REST backend to manage products, bundles, carts, checkout and purchase, customers, and subscriptions. Subbly also exposes a public Orders API for integrating directly with any 3PL / fulfillment provider (documentation is provided by Subbly on request), plus an in-app webhook platform for notifying external services of order and subscription events. Subbly does not publish a fully open, self-serve REST reference or an OpenAPI definition; the SDK abstracts the underlying endpoints, so the API surface modeled here is derived from the documented SDK operations and is flagged as modeled.

Subbly publishes 4 APIs on the APIs.io network, including Cart API, Customers API, Products API, and 1 more. Tagged areas include Subscription, Subscription Commerce, E-Commerce, Subscription Box, and Recurring Billing.

Subbly’s developer surface includes authentication, documentation, SDKs, pricing, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

32.1/100 thin ▼ -10.4 Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessPaidSelf serve

6 APIs

Subscription Subscription Commerce E-CommerceSubscription BoxRecurring Billing Headless Commerce SDK Webhook

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 32.1/100 · thin

Contract Quality 3.5 / 25

Developer Ergonomics 8.1 / 20

Access Clarity 10.0 / 20

Operational Transparency 4.1 / 13

Contract Governance 0.0 / 12

Discoverability 6.5 / 10

Agent readiness — 20/100 · agent aware

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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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/subbly: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Subbly Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

SDK

SDK

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

SupportHelpCenter

SupportHelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: subbly
url: https://raw.githubusercontent.com/api-evangelist/subbly/refs/heads/main/apis.yml
name: Subbly
kind: company
description: 'Subbly is a subscription-first commerce platform for building and running subscription boxes, memberships, and
  recurring-product businesses without code. Alongside the no-code storefront and merchant admin, Subbly ships a developer
  surface for headless and custom builds: the SubblyCart.js embeddable cart widget and the Subbly.js SDK (@subbly/sdk), a
  browser-side client that talks to Subbly''s REST backend to manage products, bundles, carts, checkout and purchase, customers,
  and subscriptions. Subbly also exposes a public Orders API for integrating directly with any 3PL / fulfillment provider
  (documentation is provided by Subbly on request), plus an in-app webhook platform for notifying external services of order
  and subscription events. Subbly does not publish a fully open, self-serve REST reference or an OpenAPI definition; the SDK
  abstracts the underlying endpoints, so the API surface modeled here is derived from the documented SDK operations and is
  flagged as modeled.'
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/subbly.png
tags:
- Subscription
- Subscription Commerce
- E-Commerce
- Subscription Box
- Recurring Billing
- Headless Commerce
- SDK
- Webhook
tags_raw:
- Subscriptions
- Subscription Commerce
- Ecommerce
- Subscription Box
- Recurring Billing
- Headless Commerce
- SDK
- Webhooks
created: '2026-07-10'
modified: '2026-07-10'
specificationVersion: '0.23'
apis:
- aid: subbly:subbly-orders-api
  name: Subbly Orders API
  tags:
  - Order
  - Fulfillment
  - 3PL
  tags_raw:
  - Orders
  - Fulfillment
  - 3PL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.subbly.dev/
  properties:
  - url: https://www.subbly.dev/
    type: Documentation
  - url: https://support.subbly.co/app-store/how-does-the-ship-station-integration-work
    type: Documentation
  description: Public Orders API for integrating Subbly orders directly with any third-party logistics (3PL) / fulfillment
    provider. Subbly states it will provide the Orders API documentation on request rather than publishing it openly, so this
    is a real but access-gated API - no endpoints are modeled here because Subbly's request/response contract is not publicly
    documented.
- aid: subbly:subbly-webhooks
  name: Subbly Webhooks
  tags:
  - Webhook
  - Event
  - Automation
  tags_raw:
  - Webhooks
  - Events
  - Automation
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.subbly.co/product
  properties:
  - url: https://www.subbly.co/product
    type: Documentation
  - url: https://www.subbly.co/all-features
    type: Documentation
  description: In-app webhook platform that notifies external and internal services of Subbly events (order and subscription
    lifecycle) with configurable conditions and variables. Webhooks are configured in the Subbly admin rather than via a published
    subscription API, and Subbly does not publish a formal event catalog or payload schema, so no webhook schemas are modeled
    here.
- aid: subbly:subbly-cart-api
  name: Subbly Cart API
  description: Cart and checkout operations (modeled from the SDK and SubblyCart.js).
  humanURL: https://docs.subbly.dev/reference/subbly-sdk/
  tags:
  - Cart
  properties:
  - type: OpenAPI
    url: openapi/subbly-cart-api-openapi.yml
  - type: Documentation
    url: https://docs.subbly.dev/reference/subbly-sdk/
  - type: APIReference
    url: https://www.subbly.dev/
  - type: Documentation
    url: https://docs.subbly.dev/reference/cart/
  - type: Documentation
    url: https://docs.subbly.dev/docs/installation/
- aid: subbly:subbly-customers-api
  name: Subbly Customers API
  description: Customer accounts, addresses, and payment methods (modeled from the SDK).
  humanURL: https://docs.subbly.dev/reference/subbly-sdk/
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/subbly-customers-api-openapi.yml
  - type: Documentation
    url: https://docs.subbly.dev/reference/subbly-sdk/
  - type: APIReference
    url: https://www.subbly.dev/
  - type: Documentation
    url: https://docs.subbly.dev/reference/cart/
  - type: Documentation
    url: https://docs.subbly.dev/docs/installation/
- aid: subbly:subbly-products-api
  name: Subbly Products API
  description: Storefront products and bundles (modeled from the SDK).
  humanURL: https://docs.subbly.dev/reference/subbly-sdk/
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/subbly-products-api-openapi.yml
  - type: Documentation
    url: https://docs.subbly.dev/reference/subbly-sdk/
  - type: APIReference
    url: https://www.subbly.dev/
  - type: Documentation
    url: https://docs.subbly.dev/reference/cart/
  - type: Documentation
    url: https://docs.subbly.dev/docs/installation/
- aid: subbly:subbly-subscriptions-api
  name: Subbly Subscriptions API
  description: Customer subscriptions and preferences (modeled from the SDK).
  humanURL: https://docs.subbly.dev/reference/subbly-sdk/
  tags:
  - Subscription
  tags_raw:
  - Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/subbly-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://docs.subbly.dev/reference/subbly-sdk/
  - type: APIReference
    url: https://www.subbly.dev/
  - type: Documentation
    url: https://docs.subbly.dev/reference/cart/
  - type: Documentation
    url: https://docs.subbly.dev/docs/installation/
common:
- type: AgenticAccess
  url: agentic-access/subbly-agentic-access.yml
- type: DomainSecurity
  url: security/subbly-domain-security.yml
- type: Authentication
  url: authentication/subbly-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/subbly
- type: Website
  url: https://www.subbly.co/
- type: Documentation
  url: https://docs.subbly.dev/
- type: DeveloperPortal
  url: https://www.subbly.dev/
- type: SDK
  url: https://docs.subbly.dev/reference/subbly-sdk/
- type: Pricing
  url: https://www.subbly.co/pricing
- type: Plans
  url: plans/subbly-plans-pricing.yml
- type: RateLimits
  url: rate-limits/subbly-rate-limits.yml
- type: FinOps
  url: finops/subbly-finops.yml
- type: SupportHelpCenter
  url: https://support.subbly.co/
- url: https://www.subbly.co/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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