Polar

Polar is an open-source, developer-first monetization platform that acts as a Merchant of Record (MoR), handling billing, payments, and global sales tax so software teams can sell digital products, subscriptions, usage-based billing, and license keys. The Polar API (https://api.polar.sh/v1) exposes products, prices, checkouts, customers, subscriptions, orders, benefits, license keys, a customer portal, usage meters/events, and webhooks behind Bearer organization access tokens. Not affiliated with Polar Electro (fitness wearables) or the Polaris design system.

Polar publishes 11 API contracts indexed on the APIs.io network, including Benefits API, Checkouts API, Customer Portal API, and 8 more. Tagged areas include Billing, Payments, Merchant of Record, Monetization, and Subscription.

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

Polar’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.4/100 thin ▬ flat Agent 42/100 agent ready Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 published contract 1 MCP Servers

Billing Payments Merchant of Record Monetization Subscription Usage-Based Billing

What this lets a business do 5

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

Subscription Lifecycle Management

BC-4240

BenefitsLicense KeysSubscriptions

PATCH /subscriptions/{id} DELETE /subscriptions/{id} POST /license-keys/validate POST /license-keys/activate

Subscription Billing & Revenue Management

BC-4250

EventsMeters

POST /meters/ POST /events/ingest

Developer Platform & API Ecosystem Management

BC-4270

Webhooks

POST /webhooks/endpoints

Customer Relationship Management

BC-420

Customers

GET /customers/ POST /customers/ GET /customers/{id} GET /customers/{id}/state

Consumer Commerce

AE-140

Checkouts

POST /checkouts/ POST /checkout-links/

Kin Score

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

Composite quality — 27.4/100 · thin

Contract Quality 8.4 / 19

Developer Ergonomics 3.8 / 15

Access Clarity 1.0 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.2 / 9

Discoverability 5.1 / 8

Regulatory Posture 0.8 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments 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):

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 →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

6 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 25.0 — up to +15.0 composite points Ask about this →
Contract Quality scores 44.7 — up to +13.8 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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/polar-sh/apis.yml: open an issue on github.com/api-evangelist/polar-sh 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	covered	14.6	-	1
Raycast Store Extensions (first-party publishers + community-wrapped products)	covered	14.6	-	1

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 4

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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

Polar Benefits API

Benefits (entitlements) attached to products.

Polar Checkouts API

Hosted checkout sessions and reusable checkout links.

Polar Customer Portal API

Customer-facing portal endpoints (Customer Session token).

Polar Customers API

Customers, external IDs, and aggregated customer state.

Polar Events API

Usage event ingestion for metered billing.

Polar License Keys API

License key issuance, validation, and activation.

Polar Meters API

Usage meters aggregating ingested events.

Polar Orders API

Orders, invoices, and receipts.

Polar Products API

Product catalog and embedded pricing.

Polar Subscriptions API

Recurring subscriptions.

Polar Webhooks API

Webhook endpoint management and deliveries.

Scroll for all 11

Open Collections 12

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

Polar benefits API

OPEN COLLECTION

Polar benefits checkouts API

OPEN COLLECTION

Polar benefits customer_portal API

OPEN COLLECTION

Polar benefits customers API

OPEN COLLECTION

Polar benefits events API

OPEN COLLECTION

Polar benefits license_keys API

OPEN COLLECTION

Polar benefits meters API

OPEN COLLECTION

Polar benefits orders API

OPEN COLLECTION

Polar benefits products API

OPEN COLLECTION

Polar benefits subscriptions API

OPEN COLLECTION

Polar benefits webhooks API

OPEN COLLECTION

Polar API

OPEN COLLECTION

Scroll for all 12

MCP Servers 1

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

Polar MCP Server

Remote MCP server at mcp.polar.sh over HTTP.

MCP SERVER

Polar API pricing

Not yet checked against Polar's own pricing page. Compiled by API Evangelist on 2026-06-21 from polar.sh/resources/pricing; confirm before you rely on a figure.

Plan	Price
Starter usage	—
Pro subscription	—
Growth subscription	—
Scale subscription	—
Early Member (Grandfathered) usage	—
Surcharges & Payout Fees usage	—

Plan details, limits and sources →

Rate limits

Production Requests Per Minute: 500 per minute requests
Sandbox Requests Per Minute: 100 per minute requests
Unauthenticated Validation Endpoints: 3 per second requests

Compiled by API Evangelist, not yet checked against Polar's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Polar Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Polar Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Polar 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.

Polar API Rules

62 rules · 58 error-severity 3 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Polar Authentication

http · 1 scheme

SECURITY

Polar Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Polar Agentic Access

41 operations · 16 acting · 1 human-in-the-loop

41 operations · 16 acting

AGENTIC

Resources

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

GitHubOrganization

GitHubOrganization

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

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: polar-sh
url: https://raw.githubusercontent.com/api-evangelist/polar-sh/refs/heads/main/apis.yml
name: Polar
kind: company
description: Polar is an open-source, developer-first monetization platform that acts as a Merchant of Record (MoR), handling
  billing, payments, and global sales tax so software teams can sell digital products, subscriptions, usage-based billing,
  and license keys. The Polar API (https://api.polar.sh/v1) exposes products, prices, checkouts, customers, subscriptions,
  orders, benefits, license keys, a customer portal, usage meters/events, and webhooks behind Bearer organization access tokens.
  Not affiliated with Polar Electro (fitness wearables) or the Polaris design system.
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: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/polar-sh.png
tags:
- Billing
- Payments
- Merchant of Record
- Monetization
- Subscription
- Usage-Based Billing
tags_raw:
- Billing
- Payments
- Merchant of Record
- Monetization
- Subscriptions
- Usage Based Billing
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.23'
apis:
- aid: polar-sh:polar-sh-benefits-api
  name: Polar Benefits API
  description: Benefits (entitlements) attached to products.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Benefits
  tags_raw:
  - benefits
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-benefits-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-checkouts-api
  name: Polar Checkouts API
  description: Hosted checkout sessions and reusable checkout links.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Checkout
  tags_raw:
  - checkouts
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-checkouts-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-customer-portal-api
  name: Polar Customer Portal API
  description: Customer-facing portal endpoints (Customer Session token).
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Customer Portal
  tags_raw:
  - customer_portal
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-customer-portal-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-customers-api
  name: Polar Customers API
  description: Customers, external IDs, and aggregated customer state.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Customers
  tags_raw:
  - customers
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-customers-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-events-api
  name: Polar Events API
  description: Usage event ingestion for metered billing.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Event
  tags_raw:
  - events
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-events-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-license-keys-api
  name: Polar License Keys API
  description: License key issuance, validation, and activation.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - License Keys
  tags_raw:
  - license_keys
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-license-keys-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-meters-api
  name: Polar Meters API
  description: Usage meters aggregating ingested events.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Meters
  tags_raw:
  - meters
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-meters-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-orders-api
  name: Polar Orders API
  description: Orders, invoices, and receipts.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Order
  tags_raw:
  - orders
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-orders-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-products-api
  name: Polar Products API
  description: Product catalog and embedded pricing.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Product
  tags_raw:
  - products
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-products-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-subscriptions-api
  name: Polar Subscriptions API
  description: Recurring subscriptions.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Subscription
  tags_raw:
  - subscriptions
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
- aid: polar-sh:polar-sh-webhooks-api
  name: Polar Webhooks API
  description: Webhook endpoint management and deliveries.
  humanURL: https://polar.sh/docs/api-reference/products
  baseURL: https://api.polar.sh/v1
  tags:
  - Webhook
  tags_raw:
  - webhooks
  properties:
  - type: OpenAPI
    url: openapi/polar-sh-webhooks-api-openapi.yml
  - type: Documentation
    url: https://polar.sh/docs/features/products
  - type: APIReference
    url: https://polar.sh/docs/api-reference/products/list
  - type: PostmanCollection
    url: collections/polar-sh.postman_collection.json
  - type: OpenCollection
    url: collections/polar-sh.opencollection.json
  - type: Documentation
    url: https://polar.sh/docs/features/checkout/session
  - type: APIReference
    url: https://polar.sh/docs/api-reference/checkouts/create-session
  - type: Documentation
    url: https://polar.sh/docs/features/customer-management
  - type: APIReference
    url: https://polar.sh/docs/api-reference/customers/list
  - type: Documentation
    url: https://polar.sh/docs/features/subscriptions
  - type: APIReference
    url: https://polar.sh/docs/api-reference/subscriptions/list
  - type: Documentation
    url: https://polar.sh/docs/features/orders
  - type: APIReference
    url: https://polar.sh/docs/api-reference/orders/list
  - type: Documentation
    url: https://polar.sh/docs/features/benefits
  - type: APIReference
    url: https://polar.sh/docs/api-reference/license-keys/list
  - type: Documentation
    url: https://polar.sh/docs/features/usage-based-billing/introduction
  - type: APIReference
    url: https://polar.sh/docs/api-reference/events/ingest
  - type: Documentation
    url: https://polar.sh/docs/integrate/webhooks/endpoints
  - type: APIReference
    url: https://polar.sh/docs/api-reference/webhooks/create
common:
- type: CapabilityMap
  url: capabilities/polar-sh-capability-edges.yml
  name: Polar Business Capability Map
- type: AgenticAccess
  url: agentic-access/polar-sh-agentic-access.yml
- type: DomainSecurity
  url: security/polar-sh-domain-security.yml
- type: Authentication
  url: authentication/polar-sh-authentication.yml
- type: GitHubOrganization
  url: https://github.com/polarsource
- type: LinkedIn
  url: https://www.linkedin.com/company/polar-software
- type: Website
  url: https://polar.sh/
- type: Documentation
  url: https://polar.sh/docs
- type: Plans
  url: plans/polar-sh-plans-pricing.yml
- type: RateLimits
  url: rate-limits/polar-sh-rate-limits.yml
- type: FinOps
  url: finops/polar-sh-finops.yml
- url: https://polar.sh/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Polar API — frequently asked questions

Does Polar have an API?

Yes. APIs.io lists 11 APIs from Polar, including Polar Benefits API, Polar Checkouts API and Polar Customer Portal API, and 8 more.

Is there an OpenAPI specification for the Polar API?

Yes. APIs.io indexes 11 OpenAPI specifications for Polar, each linked for download from this page.

How do I authenticate with the Polar API?

Polar documents its authentication (http · 1 scheme). The details are profiled on APIs.io as Polar Authentication.

How much does the Polar API cost?

APIs.io lists 6 pricing plans for Polar, with each plan's price, limits and inclusions under Pricing on this page.

Does Polar have an MCP server?

Yes. APIs.io lists 1 MCP server for Polar: Remote MCP server at mcp.polar.sh over HTTP.

Is the Polar API ready for AI agents?

Polar has a Kin Score of 27.4 out of 100 (thin) and an Agent Readiness score of 42.4 (agent-ready), scored by API Evangelist on 2026-11-13.

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