Epos Now

Epos Now is a cloud-based point of sale (POS) platform for retail and hospitality businesses, pairing countertop and mobile till hardware with a cloud Back Office for products, inventory, customers, staff, reporting, and payments. The EposNow HQ REST API lets developers programmatically read and write that cloud data - products, categories, transactions (sales), customers, stock, tax rates, and devices - using per-device Basic authentication, with Webhooks for event notifications. API access is enabled per registered API Device from the Back Office and is available through the Epos Now AppStore rather than sold as a standalone metered API product.

Epos Now publishes 6 API contracts indexed on the APIs.io network, including Categories API, Customers API, Devices API, and 3 more. Tagged areas include Point-of-Sale, Retail, Hospitality, Payments, and Inventory.

The Epos Now catalog on APIs.io includes 1 Spectral governance ruleset.

Epos Now’s developer surface includes engineering blog, pricing, authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.4/100 thin ▬ flat Agent 22/100 agent aware Front door AI 2/6 trace Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 published contract

Point-of-Sale Retail Hospitality Payments Inventory Commerce E-Commerce

What this lets a business do 4

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

Point of Sale Operations Management

BC-2320

Transactions

GET /Transaction POST /Transaction

Customer Relationship Management

BC-420

Customers

POST /Customer

Inventory Management

BC-530

Stock

GET /ProductStock GET /StockTransfer

Product Information Management

BC-2370

Products

GET /Product POST /Product PUT /Product/{Id} GET /TaxRate

Kin Score

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

Composite quality — 32.4/100 · thin

Contract Quality 9.6 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 5.1 / 15

Operational Transparency 0.7 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 0.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · 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 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 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):

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 →

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 32.1 — up to +13.6 composite points Ask about this →
Access Clarity scores 34.0 — up to +13.2 composite points Ask about this →
Contract Quality scores 51.2 — up to +12.2 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/epos-now/apis.yml: open an issue on github.com/api-evangelist/epos-now 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
MACH & Headless Commerce	builds-on	26.8 (thin)	-	-
UK G-Cloud Suppliers (UK public-sector cloud procurement)	builds-on	26.8 (thin)	-	-

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.

Epos Now Categories API

Categories that group products for the till and reporting.

Epos Now Customers API

Customer records for loyalty, accounts, and CRM.

Epos Now Devices API

Registered tills and API devices on the account.

Epos Now Products API

The product catalog sold at the point of sale.

Epos Now Stock API

Product stock levels and stock control.

Epos Now Transactions API

Sales records (orders) captured at the point of sale.

Open Collections 7

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

EposNow HQ REST Categories API

OPEN COLLECTION

EposNow HQ REST Categories Customers API

OPEN COLLECTION

EposNow HQ REST Categories Devices API

OPEN COLLECTION

EposNow HQ REST Categories Products API

OPEN COLLECTION

EposNow HQ REST Categories Stock API

OPEN COLLECTION

EposNow HQ REST Categories Transactions API

OPEN COLLECTION

EposNow HQ REST API

OPEN COLLECTION

Scroll for all 7

Epos Now API pricing

Prices published by Epos Now, read 2026-09-20 from www.eposnow.com/us/pricing/.

Plan	Price
Complete POS System	Complete POS System for only $399
Complete Solution (hardware + monthly)	$399 * + $84/month
All-in-one Countertop bundle	WAS $1099 , NOW $599 Includes: New Countertop, Epos Now Payments card machine, and cash drawer
Complete Solution offer	WAS $449 , NOW FROM $249 *

Plan details, limits and sources →

Rate limits

Account API Requests: not published requests
List Pagination: 200 per page records
Per-Device Access: per device license devices

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

Pricing Plans 2

Published pricing tiers and plan structures.

Epos Now Plans Pricing

4 plans

PLANS

Epos Now Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Epos Now Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Epos Now 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.

Epos Now API Rules

54 rules · 52 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 1

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

Epos Now Authentication

http · 1 scheme

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Epos Now Agentic Access

25 operations · 12 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

Access & Security 1

Authentication, authorization, and security posture

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: epos-now
url: https://raw.githubusercontent.com/api-evangelist/epos-now/refs/heads/main/apis.yml
name: Epos Now
kind: company
description: Epos Now is a cloud-based point of sale (POS) platform for retail and hospitality businesses, pairing countertop
  and mobile till hardware with a cloud Back Office for products, inventory, customers, staff, reporting, and payments. The
  EposNow HQ REST API lets developers programmatically read and write that cloud data - products, categories, transactions
  (sales), customers, stock, tax rates, and devices - using per-device Basic authentication, with Webhooks for event notifications.
  API access is enabled per registered API Device from the Back Office and is available through the Epos Now AppStore rather
  than sold as a standalone metered API product.
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
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/epos-now.png
tags:
- Point-of-Sale
- Retail
- Hospitality
- Payments
- Inventory
- Commerce
- E-Commerce
tags_raw:
- Point of Sale
- POS
- Retail
- Hospitality
- Payments
- Inventory
- Commerce
- Ecommerce
created: '2026-07-11'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: epos-now:epos-now-categories-api
  name: Epos Now Categories API
  description: Categories that group products for the till and reporting.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/epos-now-categories-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
- aid: epos-now:epos-now-customers-api
  name: Epos Now Customers API
  description: Customer records for loyalty, accounts, and CRM.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/epos-now-customers-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
- aid: epos-now:epos-now-devices-api
  name: Epos Now Devices API
  description: Registered tills and API devices on the account.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Devices
  properties:
  - type: OpenAPI
    url: openapi/epos-now-devices-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
- aid: epos-now:epos-now-products-api
  name: Epos Now Products API
  description: The product catalog sold at the point of sale.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/epos-now-products-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
- aid: epos-now:epos-now-stock-api
  name: Epos Now Stock API
  description: Product stock levels and stock control.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Stocks
  tags_raw:
  - Stock
  properties:
  - type: OpenAPI
    url: openapi/epos-now-stock-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
- aid: epos-now:epos-now-transactions-api
  name: Epos Now Transactions API
  description: Sales records (orders) captured at the point of sale.
  humanURL: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  baseURL: https://api.eposnowhq.com/api/V2
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/epos-now-transactions-api-openapi.yml
  - type: Documentation
    url: https://developer.eposnowhq.com/
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Product
  - type: PostmanCollection
    url: collections/epos-now.postman_collection.json
  - type: OpenCollection
    url: collections/epos-now.opencollection.json
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Category
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Transaction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Customer
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/StockControlIntroduction
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=ProductStock
  - type: Documentation
    url: https://developer.eposnowhq.com/Docs/Webhooks
  - type: APIReference
    url: https://developer.eposnowhq.com/Docs/Api?endpoint=Device
common:
- url: https://www.eposnow.com/us/news/
  type: Blog
- type: Pricing
  url: https://www.eposnow.com/us/pricing/
- type: CapabilityMap
  url: capabilities/epos-now-capability-edges.yml
  name: Epos Now Business Capability Map
- type: AgenticAccess
  url: agentic-access/epos-now-agentic-access.yml
- type: Authentication
  url: authentication/epos-now-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/epos-now
- type: Website
  url: https://www.eposnow.com/
- type: Documentation
  url: https://developer.eposnowhq.com/
- type: Plans
  url: plans/epos-now-plans-pricing.yml
- type: RateLimits
  url: rate-limits/epos-now-rate-limits.yml
- type: FinOps
  url: finops/epos-now-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Epos Now API — frequently asked questions

Does Epos Now have an API?

Yes. APIs.io lists 6 APIs from Epos Now, including Epos Now Categories API, Epos Now Customers API and Epos Now Devices API, and 3 more.

Is there an OpenAPI specification for the Epos Now API?

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

How do I authenticate with the Epos Now API?

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

How much does the Epos Now API cost?

Epos Now publishes its prices; its Complete POS System plan is Complete POS System for only $399 as of 2026-09-20. APIs.io lists 4 pricing plans for Epos Now, with each plan's price, limits and inclusions under Pricing on this page.

Is the Epos Now API ready for AI agents?

Epos Now has a Kin Score of 32.4 out of 100 (thin) and an Agent Readiness score of 22.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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