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 API contracts indexed on the APIs.io network, including Bills API, Orders API, Plans API, and 3 more. Tagged areas include Subscription, Loyalty, Shopify, E-Commerce, and Direct to Consumer.

The Smartrr catalog on APIs.io includes 1 Spectral governance ruleset.

Smartrr’s developer surface includes engineering blog, authentication, documentation, API reference, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.7/100 thin ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaidSelf serveFree trial⚡ Free to try

1 published contract

Subscription Loyalty Shopify E-Commerce Direct to Consumer Recurring Revenue Subscription Management

What this lets a business do 3

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Subscription Lifecycle Management

BC-4240

PlansSubscriptions

POST /vendor/purchase-state PUT /vendor/customer/{customerRelationshipId}/purchase-state/{customerPurchaseStateId}/pause PUT /vendor/customer/{customerRelationshipId}/purchase-state/{customerPurchaseStateId}/cancel GET /vendor/selling-plan-group

Subscription Billing & Revenue Management

BC-4250

Bills

POST /vendor/bill/{billId}/retry POST /vendor/bill/{billId}/cancel

Customer Relationship Management

BC-420

Subscribers

PUT /vendor/customer-relationship/{customerRelationshipId}/orgPoints POST /vendor/customer-relationship/import

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 26.7/100 · thin

Contract Quality 8.9 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 1.0 / 15

Operational Transparency 0.7 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Developer Ergonomics scores 32.1 — up to +13.6 composite points Ask about this →
Contract Quality scores 47.5 — up to +13.1 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/smartrr/apis.yml: open an issue on github.com/api-evangelist/smartrr to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Billing, Subscriptions and Monetization	builds-on	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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

Open Collections 7

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

Smartrr Vendor Bills API

OPEN COLLECTION

Smartrr Vendor Bills Orders API

OPEN COLLECTION

Smartrr Vendor Bills Plans API

OPEN COLLECTION

Smartrr Vendor Bills Subscribers API

OPEN COLLECTION

Smartrr Vendor Bills Subscriptions API

OPEN COLLECTION

Smartrr Vendor Bills Webhooks API

OPEN COLLECTION

Smartrr Vendor API

OPEN COLLECTION

Scroll for all 7

Smartrr API pricing

Not yet checked against Smartrr's own pricing page. Compiled by API Evangelist on 2026-07-10 from smartrr.com/pricing; confirm before you rely on a figure.

Plan	Price
Launch paid	$99 per monthly Base Fee / month
Grow paid	$299 per monthly Base Fee / month
Excel paid	—
Enterprise / Custom enterprise	—

Plan details, limits and sources →

Rate limits

Vendor API Requests: not published requests
List Pagination: configurable via pageSize records
Subscription Events: 250 most recent events

Compiled by API Evangelist, not yet checked against Smartrr's documentation. All 4 limits →

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Smartrr API Rules

53 rules · 48 error-severity 4 warn-severity 1 info-severity

SPECTRAL

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 (API Evangelist recommendations) 1

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

Smartrr Agentic Access

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 3

The organization behind the API

Blog

Blog

Website

Website

LinkedIn

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

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/.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Paid (free trial) · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/smartrr.png
tags:
- Subscription
- Loyalty
- Shopify
- E-Commerce
- Direct to Consumer
- Recurring Revenue
- Subscription Management
tags_raw:
- Subscriptions
- Loyalty
- Shopify
- Ecommerce
- DTC
- Recurring Revenue
- Subscription Management
created: '2026-07-10'
modified: '2026-10-06'
specificationVersion: '0.23'
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:
  - Order
  tags_raw:
  - 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:
  - Subscription
  tags_raw:
  - 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:
  - Webhook
  tags_raw:
  - 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:
- url: https://smartrr.com/blog
  type: Blog
- type: CapabilityMap
  url: capabilities/smartrr-capability-edges.yml
  name: Smartrr Business Capability Map
- 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

Smartrr API — frequently asked questions

Does Smartrr have an API?

Yes. APIs.io lists 6 APIs from Smartrr, including Smartrr Bills API, Smartrr Orders API and Smartrr Plans API, and 3 more.

Is there an OpenAPI specification for the Smartrr API?

Yes. APIs.io indexes 6 OpenAPI specifications for Smartrr, each linked for download from this page.

How do I authenticate with the Smartrr API?

Smartrr uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Smartrr Authentication.

How much does the Smartrr API cost?

APIs.io lists 4 pricing plans for Smartrr, with each plan's price, limits and inclusions under Pricing on this page.

Is the Smartrr API ready for AI agents?

Smartrr has a Kin Score of 26.7 out of 100 (thin) and an Agent Readiness score of 21.3 (agent-aware), scored by API Evangelist on 2026-11-13.

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