API Horizon Integration Consulting
Project-based programming consulting for REST API design, webhook contracts, and third-party integrations—scoped for teams that need production-ready interfaces, not slide decks.
API Horizon Integration Consulting Co., Ltd. · Unified Business Number (UBN)：80177520 · Representative：Lin Hao-Ting
Checklist we walk through on every API project
Checklist-led delivery keeps REST contracts and integration edges explicit before code merges.
Inventory outbound calls
List every third-party base URL, auth mode, and payload shape your service already depends on—including sandbox vs production hosts.
Freeze resource nouns
Agree on path segments, id formats, and which operations are safe for idempotent retries before publishing OpenAPI components.
Define failure semantics
Map HTTP status codes to operator actions: when to replay webhooks, when to page a human, and when to dead-letter a queue item.
Ship contract tests
Wire consumer-driven checks against recorded fixtures so vendor drift is caught in CI, not during month-end reconciliation.
Hands-on REST modeling, not generic IT advisory
Sessions stay in your repositories: we pair on controller boundaries, DTO validation, and how your ORM maps to public JSON fields.
When a partner exposes quirky pagination, we capture the workaround in the integration runbook with sample curl traces—so the next engineer does not rediscover it.
We document the handshake between your service and each external API before adapter code lands in main.
Who this consulting fits—and where we bow out
API design sprint (project)
Two-week scope to model resources, error envelopes, pagination, and auth flows—with an OpenAPI 3.1 draft and breaking-change guardrails.
Integration hardening (project)
Single-vendor focus: retries, idempotency keys, webhook verification, and an on-call runbook with contract tests wired into CI.
Strong fit vs. not a fit
We work with teams shipping B2B REST surfaces or untangling partner SDKs—not with 24/7 ops outsourcing or staff augmentation without API artifacts.
Quick answers
Do you implement code or only write specifications?
Both, within project scope. Many engagements deliver OpenAPI plus reference adapter code; larger builds may stop at contracts if your team owns implementation.
How are projects priced?
Fixed project fees in TWD with milestones tied to deliverables. We quote after a written scope—not hourly retainers unless explicitly agreed.
Start with a written inquiry
Describe the API or vendor you are integrating, your timeline, and what “done” means for your team.