OEN

Oen (應援科技) is a Taiwan-based fintech company operating an integrated payments and CRM cloud platform. It provides multi-channel payment processing (credit cards, convenience-store payments, bank transfers, and subscriptions), electronic invoicing, and a supporter-relationship CRM covering event and ticketing management, member and volunteer management, merchandise/reward redemption, and email/SMS communications. The platform serves nonprofits, political organizations, educational institutions, entertainment events, and commercial merchants, with more than 600 organizations and individuals using Oen. The company runs an API Gateway and mobile-payment surface, a public responsible-disclosure and bug-bounty program, and displays PCI DSS Level 1, ISO 27001, and ISO 27701 trust badges.

OEN is profiled on the APIs.io network. Tagged areas include Company, Payments, Fintech, CRM, and Invoicing.

OEN’s developer surface includes engineering blog, support, and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

15.4/100 emerging ▬ flat Agent 0/100 human only Front door AI 5/6 prominent Heartbeat 83/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Payments Fintech CRM Invoicing Taiwan Non-Profit

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 15.4/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 6.3 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 3.3 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 7.1 — up to +18.6 composite points
Access Clarity scores 36.8 — up to +12.6 composite points

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.

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/oen/apis.yml: open an issue on github.com/api-evangelist/oen 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
Southeast Asia and National Fintech Registers (Taiwan, UAE, Malaysia remittance, Indonesia SNAP)	undeclared	-	-	1
Taiwan Listed Companies (TWSE, TPEx)	undeclared	-	-	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.

Security Posture 3

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

Oen Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Oen Vulnerability Disclosure

contact published

SECURITY

Oen Trust Center

PCI DSS, ISO/IEC 27001, ISO/IEC 27701

SECURITY

Resources

Access & Security 5

Authentication, authorization, and security posture

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

Compliance

Compliance

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Source (apis.yml)

aid: oen
name: OEN
description: Oen (應援科技) is a Taiwan-based fintech company operating an integrated payments and CRM cloud platform. It provides
  multi-channel payment processing (credit cards, convenience-store payments, bank transfers, and subscriptions), electronic
  invoicing, and a supporter-relationship CRM covering event and ticketing management, member and volunteer management, merchandise/reward
  redemption, and email/SMS communications. The platform serves nonprofits, political organizations, educational institutions,
  entertainment events, and commercial merchants, with more than 600 organizations and individuals using Oen. The company
  runs an API Gateway and mobile-payment surface, a public responsible-disclosure and bug-bounty program, and displays PCI
  DSS Level 1, ISO 27001, and ISO 27701 trust badges.
url: https://raw.githubusercontent.com/api-evangelist/oen/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://oen.tw/favicon.ico
tags:
- Company
- Payments
- Fintech
- CRM
- Invoicing
- Taiwan
- Non-Profit
tags_raw:
- Company
- Payments
- FinTech
- CRM
- Invoicing
- Taiwan
- Nonprofit
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://oen.tw/news
  type: Blog
- type: Website
  url: https://oen.tw
- type: Support
  url: https://oen.tw/faq
- type: TermsOfService
  url: https://oen.tw/terms
- type: PrivacyPolicy
  url: https://oen.tw/privacy
- type: Security
  url: security/oen-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  url: security/oen-vulnerability-disclosure.yml
- type: Compliance
  url: security/oen-trust-center.yml
- type: TrustCenter
  url: security/oen-trust-center.yml
- type: DomainSecurity
  url: security/oen-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 3
  pass: local-v1

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