Smartrr

Smartrr is a subscription and loyalty platform for Shopify DTC brands. It adds subscribe-and-save subscriptions, a branded customer account portal, loyalty and rewards, referrals, bundles, and retention tooling on top of Shopify. Its Vendor API (https://api.smartrr.com) lets merchants programmatically manage the subscriptions their customers hold - modeled as "purchase states" - along with the subscribers, orders, bills, and the selling plans / subscription programs products are sold on. The API is authenticated with a per-organization access token generated in the Smartrr admin Integrations tab and sent in the x-smartrr-access-token header. A full OpenAPI document (116 operations) is served publicly at https://api.smartrr.com/docs/spec.json and rendered at https://api.smartrr.com/docs/redoc/.

Smartrr publishes 6 APIs on the APIs.io network, including Bills API, Orders API, Plans API, and 3 more. Tagged areas include Subscriptions, Loyalty, Shopify, Ecommerce, and DTC.

Smartrr’s developer surface includes authentication, documentation, API reference, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.6/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessPaidSelf serveFree trial⚡ Free to try
6 APIs
SubscriptionsLoyaltyShopifyEcommerceDTCRecurring RevenueSubscription Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 38.6/100 · thin
Contract Quality 14.0 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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/smartrr: 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.

Smartrr Bills API

Recurring bills (subscription transactions) and their retry / cancel lifecycle.

Smartrr Orders API

Orders generated by subscriptions.

Smartrr Plans API

Purchasables, selling plans, selling plan groups and subscription programs - the products and the terms they are sold on.

Smartrr Subscribers API

Customer relationships (subscribers) - the Shopify customers who hold subscriptions, their payment methods, loyalty points, and referral links.

Smartrr Subscriptions API

Customer subscriptions, modeled by Smartrr as "purchase states". Create, read, and manage the lifecycle (skip, pause, cancel, reschedule, swap line items) of a subscription.

Smartrr Webhooks API

Register endpoints to receive Smartrr event notifications.

Open Collections 1

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

Smartrr Vendor API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Smartrr Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Smartrr Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Smartrr Finops

FINOPS

Security Posture 2

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

Smartrr Authentication

apiKey · 1 scheme

SECURITY

Smartrr Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Smartrr Agentic Access

43 operations · 21 acting

43 operations · 21 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

Website
Website
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: smartrr
url: https://raw.githubusercontent.com/api-evangelist/smartrr/refs/heads/main/apis.yml
name: Smartrr
kind: company
description: Smartrr is a subscription and loyalty platform for Shopify DTC brands. It adds subscribe-and-save subscriptions,
  a branded customer account portal, loyalty and rewards, referrals, bundles, and retention tooling on top of Shopify. Its
  Vendor API (https://api.smartrr.com) lets merchants programmatically manage the subscriptions their customers hold - modeled
  as "purchase states" - along with the subscribers, orders, bills, and the selling plans / subscription programs products
  are sold on. The API is authenticated with a per-organization access token generated in the Smartrr admin Integrations tab
  and sent in the x-smartrr-access-token header. A full OpenAPI document (116 operations) is served publicly at https://api.smartrr.com/docs/spec.json
  and rendered at https://api.smartrr.com/docs/redoc/.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Paid (free trial) · 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/smartrr.png
tags:
- Subscriptions
- Loyalty
- Shopify
- Ecommerce
- DTC
- Recurring Revenue
- Subscription Management
created: '2026-07-10'
modified: '2026-07-10'
specificationVersion: '0.19'
apis:
- aid: smartrr:smartrr-bills-api
  name: Smartrr Bills API
  description: Recurring bills (subscription transactions) and their retry / cancel lifecycle.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Bills
  properties:
  - type: OpenAPI
    url: openapi/smartrr-bills-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
- aid: smartrr:smartrr-orders-api
  name: Smartrr Orders API
  description: Orders generated by subscriptions.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/smartrr-orders-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
- aid: smartrr:smartrr-plans-api
  name: Smartrr Plans API
  description: Purchasables, selling plans, selling plan groups and subscription programs - the products and the terms they
    are sold on.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Plans
  properties:
  - type: OpenAPI
    url: openapi/smartrr-plans-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
- aid: smartrr:smartrr-subscribers-api
  name: Smartrr Subscribers API
  description: Customer relationships (subscribers) - the Shopify customers who hold subscriptions, their payment methods,
    loyalty points, and referral links.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Subscribers
  properties:
  - type: OpenAPI
    url: openapi/smartrr-subscribers-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
- aid: smartrr:smartrr-subscriptions-api
  name: Smartrr Subscriptions API
  description: Customer subscriptions, modeled by Smartrr as "purchase states". Create, read, and manage the lifecycle (skip,
    pause, cancel, reschedule, swap line items) of a subscription.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/smartrr-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
- aid: smartrr:smartrr-webhooks-api
  name: Smartrr Webhooks API
  description: Register endpoints to receive Smartrr event notifications.
  humanURL: https://api.smartrr.com/docs/redoc/
  baseURL: https://api.smartrr.com
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/smartrr-webhooks-api-openapi.yml
  - type: Documentation
    url: https://help.smartrr.com/docs/support/developer-documentation
  - type: APIReference
    url: https://api.smartrr.com/docs/redoc/
  - type: PostmanCollection
    url: collections/smartrr.postman_collection.json
  - type: OpenCollection
    url: collections/smartrr.opencollection.json
  - type: Documentation
    url: https://help.smartrr.com/docs/support/integrations/webhooks
common:
- type: AgenticAccess
  url: agentic-access/smartrr-agentic-access.yml
- type: DomainSecurity
  url: security/smartrr-domain-security.yml
- type: Authentication
  url: authentication/smartrr-authentication.yml
- type: Website
  url: https://smartrr.com
- type: LinkedIn
  url: https://www.linkedin.com/company/smartrr
- type: Documentation
  url: https://help.smartrr.com/docs
- type: APIReference
  url: https://api.smartrr.com/docs/redoc/
- type: Plans
  url: plans/smartrr-plans-pricing.yml
- type: RateLimits
  url: rate-limits/smartrr-rate-limits.yml
- type: FinOps
  url: finops/smartrr-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com