# Subbly

**Canonical:** https://apis.io/providers/subbly/  
**Website:** https://www.subbly.co/  
**APIs profiled:** 6

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.

## Kin Score — 32.1 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: falling (-10.4 from 42.5).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 13.8 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 40.5 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (6)

- **Subbly Orders API** — 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 ...
- **Subbly Webhooks** — In-app webhook platform that notifies external and internal services of Subbly events (order and subscription lifecycle) with configurable conditions and variables. Webhooks are...
- **Subbly Cart API** — Cart and checkout operations (modeled from the SDK and SubblyCart.js).
- **Subbly Customers API** — Customer accounts, addresses, and payment methods (modeled from the SDK).
- **Subbly Products API** — Storefront products and bundles (modeled from the SDK).
- **Subbly Subscriptions API** — Customer subscriptions and preferences (modeled from the SDK).

## Agentic access (1)

- **Subbly Agentic Access** — 21 operations · 10 acting

## Security (2)

- **Subbly Authentication** — apiKey · 1 scheme
- **Subbly Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Subbly Plans Pricing**

## Tags

Subscription, Subscription Commerce, E-Commerce, Subscription Box, Recurring Billing, Headless Commerce, SDK, Webhook

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/subbly/). Scores are computed from the provider's own public artifacts under a published rubric.