Build on top of CustomersAI’s Identity Engine
CustomersAI gives developers direct programmatic access to our identity infrastructure — the same identity engine that powers our first-party extended data across thousands of websites.
With our API, you can deploy our identity tools on a single website you own or multiple customer websites you manage.
Both setups are fully supported and intentionally simple.
Full API Access to the Identity Engine
Integrate identity directly into your own stack — client-side or server-side.
Our API lets you:
Create and manage accounts, sub accounts, sites, and pixels
Trigger real-time identity resolution
Decode identities in the browser or server
Retrieve unified identity profiles
Track usage and metering per domain or project
Create and manage accounts, sub accounts, sites, and pixels
Fast, predictable REST endpoints make integration easy.
Rich Identity Attributes You Can Use Anywhere
(behavior, context, scoring, etc.)
Use Cases: Single-Site or Multi-Site
Single-Site Deployment
Ideal if you:
- ✓ Run one brand or storefront_
- ✓ Want direct API-level control_
- ✓ Need to pass identities to CRMs, ESPs, analytics, or ads_
- ✓ Prefer server-side identity handling_
No complexity required
Multi-Client / Multi-Site Deployment
Perfect for agencies, SaaS platforms, or operators managing many sites:
- ✓ Separate pixels and identity stores per site_
- ✓ API keys and usage tracking per client_
- ✓ Programmatic provisioning_
- ✓ Webhook-based identity events per domain_
Scale without changing your architecture
Real-Time Identity Delivery
Browser or Server
// Client-side identity fetching
Fetch identity instantly on the client for personalization and experimentation.
const identity = await fetch(‘/api/decode’);
console.log(identity.visitorId);
Real-time
Client-side
Zero latency
// Client-side identity fetching
Fetch identity instantly on the client for personalization and experimentation.
const identity = await fetch(‘/api/decode’);
console.log(identity.visitorId);
Real-time
Client-side
Zero latency
Console ✓ Ready for client integration
You decide the destination — we supply the identity
Ad platforms
Klaviyo / ESPs
Bring Your Identity Anywhere
First-party databases
Attribution tools
CDPs
Fast, Simple, Developer-Friendly
Why This Is Unique in the Industry
Most identity vendors operate like a black box — they give you a match and expect blind trust.
CustomersAI is the opposite:
Transparent
Testable
And fully inspectable
You can use our API to compare our resolved identities directly against your own first-party truth:
Compare inferred emails to your known emails
Test persistent IDs across devices versus your logged-in user IDs
Validate match rates and continuity
Inspect identity resolution over time
We encourage — even expect — developers to test our accuracy
Try CustomersAI for Free Today
10 minute setup. No code or credit card required.
