WeLab

WeLab is a Hong Kong-headquartered fintech group founded in 2013 (incorporated November 2012 as WeLend) by Simon Loong, Kelly Wong and Frances Kang, operating consumer lending, digital banking and payments businesses across Hong Kong, mainland China and Indonesia. Its brands include WeLend (Hong Kong online lending), WeLab Digital and Taoxinji (mainland China), WeLab Pay, Tianmian Lab, and two licensed digital banks — WeLab Bank Limited, one of Hong Kong's virtual banks licensed by the Hong Kong Monetary Authority in April 2019 and launched to the public in July 2020, and Bank Saqu (formerly Bank Jasa Jakarta) in Indonesia. WeLab Bank is the group's API-bearing entity: under the HKMA Open API Framework it publishes an "Open API" developer portal for registered third-party service providers, backed by dedicated production and sandbox API gateways that require a client certificate (mutual TLS) before any request is served. Investors across its funding rounds include Sequoia Capital, Alibaba Entrepreneurs Fund, Credit Suisse and Allianz.

WeLab publishes 1 API on the APIs.io network. Tagged areas include fintech, digital-banking, virtual-bank, open-banking, and hong-kong.

WeLab’s developer surface includes support, engineering blog, authentication, and 15 more developer resources.

20.5/100 emerging ▬ flat Agent 9/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs
fintechdigital-bankingvirtual-bankopen-bankinghong-kongindonesiaconsumer-lendingpaymentshkma-open-apifinancial-services

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 20.5/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 4.4 / 17
Commercial Clarity 3.6 / 17
Operational Transparency 0.0 / 11
Governance 1.3 / 10
Discoverability 6.5 / 9
Regulatory Posture 4.7 / 15
Agent readiness — 9/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 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
Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance 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.
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/.
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/welab: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

WeLab Bank Open API

WeLab Bank's Open API programme, published under the Hong Kong Monetary Authority Open API Framework and linked as "Open API" from the welab.bank site footer. The developer port...

Security Posture 2

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

Welab Authentication

mutualTLS · 1 scheme

SECURITY

Welab Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Access & Security 4

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 5

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: welab
name: WeLab
description: 'WeLab is a Hong Kong-headquartered fintech group founded in 2013 (incorporated November 2012 as WeLend) by Simon
  Loong, Kelly Wong and Frances Kang, operating consumer lending, digital banking and payments businesses across Hong Kong,
  mainland China and Indonesia. Its brands include WeLend (Hong Kong online lending), WeLab Digital and Taoxinji (mainland
  China), WeLab Pay, Tianmian Lab, and two licensed digital banks — WeLab Bank Limited, one of Hong Kong''s virtual banks
  licensed by the Hong Kong Monetary Authority in April 2019 and launched to the public in July 2020, and Bank Saqu (formerly
  Bank Jasa Jakarta) in Indonesia. WeLab Bank is the group''s API-bearing entity: under the HKMA Open API Framework it publishes
  an "Open API" developer portal for registered third-party service providers, backed by dedicated production and sandbox
  API gateways that require a client certificate (mutual TLS) before any request is served. Investors across its funding rounds
  include Sequoia Capital, Alibaba Entrepreneurs Fund, Credit Suisse and Allianz.'
image: https://www.welab.bank/uploads/We_Lab_Bank_logo_en_b54140e004.png
url: https://raw.githubusercontent.com/api-evangelist/welab/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.21'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- fintech
- digital-banking
- virtual-bank
- open-banking
- hong-kong
- indonesia
- consumer-lending
- payments
- hkma-open-api
- financial-services
apis:
- name: WeLab Bank Open API
  description: 'WeLab Bank''s Open API programme, published under the Hong Kong Monetary Authority Open API Framework and
    linked as "Open API" from the welab.bank site footer. The developer portal at portal-sandbox.welab.bank carries the API
    catalogue (account information APIs including account balance, account status and account transaction) and a help centre,
    and requires registration with WeLab Bank as a third-party service provider. The API gateways themselves are dedicated
    hosts in AWS ap-east-1 (Hong Kong): api.welab.bank for production and api-sandbox.welab.bank for the sandbox. Both enforce
    mutual TLS — an anonymous request to the sandbox gateway is answered with HTTP 400 "No required SSL certificate was sent"
    — so no operation, schema or specification is reachable without a WeLab-issued client certificate.'
  humanURL: https://portal-sandbox.welab.bank/
  baseURL: https://api.welab.bank
  tags:
  - open-banking
  - hkma-open-api
  - account-information
  - digital-banking
  - hong-kong
  properties:
  - type: DeveloperPortal
    url: https://portal-sandbox.welab.bank/
  - type: Authentication
    url: authentication/welab-authentication.yml
  - type: Conformance
    url: conformance/welab-conformance.yml
  x-evidence:
    checked: '2026-08-05'
    probes:
    - url: https://api-sandbox.welab.bank/
      status: 400
      note: nginx — "No required SSL certificate was sent" (mutual TLS required)
    - url: https://api.welab.bank/
      status: 0
      note: TCP connect timeout from a US network; DNS resolves to prod-opa-gw-public-nlb (AWS ap-east-1)
    - url: https://portal-sandbox.welab.bank/
      status: 403
      note: Cloudflare block page returned to every non-interactive client
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/welab-domain-security.yml
- type: Website
  url: https://www.welab.co/
- type: DeveloperPortal
  url: https://portal-sandbox.welab.bank/
- type: Support
  url: https://www.welab.bank/en/support/
- type: HelpCenter
  url: https://www.welab.bank/en/support/faq/
- type: Blog
  url: https://www.welab.bank/en/blog/
- type: Newsroom
  url: https://www.welab.bank/en/newsroom/
- type: About
  url: https://www.welab.bank/en/about/
- type: TermsOfService
  url: https://www.welab.bank/en/legal/terms-and-conditions/
- type: PrivacyPolicy
  url: https://www.welab.bank/en/legal/privacy-policy/
- type: RegulatoryDisclosures
  url: https://www.welab.bank/en/legal/regulatory-disclosures/
- type: SecurityTips
  url: https://www.welab.bank/en/legal/security-tips/
- type: Careers
  url: https://www.welab.co/en/careers/
- type: Authentication
  url: authentication/welab-authentication.yml
- type: Conformance
  url: conformance/welab-conformance.yml
- type: Lifecycle
  url: lifecycle/welab-lifecycle.yml
- type: LLMsTxt
  url: llms/welab-llms.txt
- type: SecondaryMarketListing
  url: https://www.hiive.com/securities/welab-stock
x-enrichment:
  date: '2026-08-05'
  status: minimal
  artifacts_added: 5
  pass: local-v1
x-coverage:
  state: gated
  reason: partner-login
  detail: WeLab Bank's own footer "Open API" link goes to portal-sandbox.welab.bank, a registered-third-party-service-provider
    portal that answers every non-interactive client with a Cloudflare 403, and its sandbox gateway api-sandbox.welab.bank
    refuses anonymous requests at the TLS layer with HTTP 400 "No required SSL certificate was sent" — so the account balance/status/transaction
    contract cannot be read without a WeLab-issued client certificate.
  evidence:
  - url: https://api-sandbox.welab.bank/
    status: 400
  - url: https://portal-sandbox.welab.bank/
    status: 403
  - url: https://www.welab.bank/en/legal/maintenance-schedule/
    status: 200
  checked: '2026-08-05'