WeChat Pay / Alipay
Custom build for “payment API”: clarify goals, modules and admin needs before coding.
- Pay, notify, refunds.
API & INTEGRATION
API Development
Integrations & data services
Payments, ERP, CRM, HIS, IoT and more.
INTEGRATIONS
Common API / integration types
If you searched payment API or ERP integration—start here.
SMS / email APIs
Custom build for “SMS API”: clarify goals, modules and admin needs before coding.
- OTP and notifications.
ERP / inventory sync
Custom build for “ERP integration”: clarify goals, modules and admin needs before coding.
- SKU, stock, orders.
CRM sync
Custom build for “CRM integration”: clarify goals, modules and admin needs before coding.
- Leads and follow-ups.
E-sign APIs
Custom build for “e-sign API”: clarify goals, modules and admin needs before coding.
- Contracts and callbacks.
Maps / tracking
Custom build for “maps API”: clarify goals, modules and admin needs before coding.
- Geo and geofence.
Logistics APIs
Custom build for “logistics API”: clarify goals, modules and admin needs before coding.
- Ship and track.
OSS storage
Custom build for “OSS integration”: clarify goals, modules and admin needs before coding.
- Upload auth and CDN.
WeCom / DingTalk
Custom build for “WeCom integration”: clarify goals, modules and admin needs before coding.
- Login and messaging.
Invoicing APIs
Custom build for “invoice API”: clarify goals, modules and admin needs before coding.
- Invoice request
- return.
HIS integrations
Custom build for “HIS API”: clarify goals, modules and admin needs before coding.
- Appointments
- reports (compliance).
IoT ingest APIs
Custom build for “IoT API”: clarify goals, modules and admin needs before coding.
- Device auth and commands.
API gateway
Custom build for “API gateway”: clarify goals, modules and admin needs before coding.
- Apps, quotas, auth.
SSO
Custom build for “SSO”: clarify goals, modules and admin needs before coding.
- Unified identity.
Data APIs
Custom build for “data API”: clarify goals, modules and admin needs before coding.
- Metrics queries.
Marketplace connectors
Custom build for “shop API”: clarify goals, modules and admin needs before coding.
- Bi-directional sync.
Docs + sandbox speed things up.
OVERVIEW
API development overview
Stable, documented APIs for SPAs, mobile and third parties—with auth, rate limits, logging and smooth joint debugging.
What you get
- API modeling & conventions
- Auth, ACL & rate limits
- Error codes & versioning
- Docs & sample calls
- Logging/monitoring tips
- Third-party integration review
How we help
Solution design around goals, with risk control
Spec before code
Naming, paging, errors, auth aligned.
Security by default
Auth and limits designed per scenario.
Handoff pack
Docs, samples and env notes.
Compatible versioning
Breaking changes stay predictable.
Typical scenarios
Common cases where we deliver quickly
SPA / app backends
Unified APIs for web and mobile.
System connectivity
ERP/CRM/payment/SMS bridges.
Partner open APIs
External access with quotas.
Legacy adapters
Wrap old systems for new clients.
PAIN POINTS
Problems you may face
Clarify pains first—then scope and quote
Missing/outdated docs
Endless back-and-forth debugging.
Weak security
Over-permissioned tokens, no limits.
Slow partner integrations
Poor docs and mismatched environments.
Breaking changes fear
No versioning strategy.
FAQ
FAQ before kickoff
Timeline, pricing, source and support
When can we integrate?
Core APIs and docs first, then expand.
OpenAPI/Swagger?
Available per agreement.
Integration-only work?
Yes—scoped by endpoint list.
Stability approach?
Timeouts, retries, limits and logs.
Docs-only kickoff?
Yes—after a doc quality check.
Sandbox help?
We can help stand up or join theirs.