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 support and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
22.0/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyPaymentsFinTechCRMInvoicingTaiwanNonprofit

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 22.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 0.9 / 20
Commercial Clarity 7.4 / 20
Operational Transparency 1.4 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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/oen: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

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 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
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
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
image: https://oen.tw/favicon.ico
tags:
- Company
- Payments
- FinTech
- CRM
- Invoicing
- Taiwan
- Nonprofit
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- 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