API Builder
Where your connected data
starts acting.
API Builder is the action half of the platform. Once your systems are in sync, this is where you wire what happens next: route an approval, trigger a workflow, reconcile two systems, fire an event into any endpoint. Visually, in hours, without waiting on IT.
What It Is
One builder that acts on every API
Once your systems are in sync, API Builder is where that data does something. Route it, transform it, and push it back out — visually, without writing code or waiting on IT. The same designer connects to any external system, so whatever you wire up, it acts on live data and reaches any endpoint.
Every API you build auto-generates documentation, rate limiting, authentication, and monitoring — production-grade from day one, without configuration.
See it work
Workflows that run themselves
Route, trigger, and reconcile across every connected system. Build the automation once in the canvas, then let it run around the clock.
Building a cross-system workflow in Vantage
How It Works
Design. Test. Deploy.
Design Visually
Drag, drop, and connect
Use the visual workflow designer to map API endpoints, define data transformations, and set up authentication — all in a clean drag-and-drop canvas. No YAML, no config files.
Test Instantly
Live testing with real data
Hit your APIs with real requests and see responses in real time. Inspect headers, latency, and payloads side-by-side. Debug in seconds, not hours.
Deploy & Scale
One click to production
Deploy instantly with auto-generated docs, rate limiting, and monitoring baked in. Scale from prototype to enterprise without changing a line.
Use Cases
What it looks like in practice
Real organizations using API Builder to put their synced data to work — routing, triggering, and reconciling across systems.
Connecting legacy inventory to Shopify in real time
Challenge: A retailer's warehouse management system ran on a 15-year-old SOAP API. Every inventory update required manual CSV exports and overnight batch jobs — leading to overselling and customer complaints.
Solution: API Builder connected the legacy SOAP endpoint directly to Shopify's REST API. Inventory now syncs in real time, and the team built the entire integration in a single afternoon.
Automating vendor onboarding without dev resources
Challenge: An accounts payable team manually entered vendor data from email forms into their ERP, NetSuite, and compliance systems. Every new vendor took 3 days to onboard with multiple handoffs.
Solution: API Builder created a webhook-triggered pipeline that automatically routes vendor submissions to all three systems simultaneously, validates tax IDs, and flags compliance issues instantly.
HL7/FHIR integration without a dev team
Challenge: A clinic network needed to integrate patient records across HL7 and FHIR systems but couldn't justify hiring integration developers for what they assumed was a multi-month project.
Solution: Using API Builder's pre-built healthcare templates, their IT operations team mapped HL7 messages to FHIR resources visually. The integration went live in 2 weeks with zero custom code.
Your whole operation
in sync. And acting.
Stop stitching your systems together by hand. Connect the tools you already run — and let them route, trigger, and reconcile on their own.