Build on L-Center

Integrate with the juventology operating system. Protocol marketplace, bio-age calculation, Longeva AI clinical intelligence, and real-time webhooks.

Get API KeysQuick Start

Quick Start

Three steps to your first API call.

1
Get your API key
Sign up at the developer console and generate a sandbox API key.
2
Install the SDK
Install the SDK for your language of choice.
3
Make your first call
Start with a bio-age calculation — no patient data required.

SDK Downloads

Auto-generated, typed clients with built-in rate-limit handling and webhook verification.

INSTALL
npm install @l-center/sdk
EXAMPLE
import { LCenterClient } from '@l-center/sdk';

const client = new LCenterClient({
  apiKey: process.env.LCENTER_API_KEY!,
});

// Calculate biological age
const result = await client.calculateBioAge({
  biomarkers: { glucose: 95, crp: 0.8, albumin: 4.2 },
  chronologicalAge: 55,
});

console.log(`Bio-age: ${result.biologicalAge}`);

API Scopes

Request only the scopes your application needs. Minimum necessary access enforced.

protocols:read
Browse protocol marketplace
protocols:execute
Enroll patients on protocols
patients:read
Read governed patient data
patients:write
Submit data on behalf of patients
atlas:query
Query Longeva AI intelligence
evidence:read
Read aggregate evidence data
billing:read
Read billing/reimbursement data
bioage:calculate
Calculate bio-age from lab data

Webhooks

Subscribe to real-time events. All payloads are HMAC-SHA256 signed to prevent spoofing.

patient.enrolledNew patient on a protocol
cycle.startedPatient started a cycle
cycle.completedPatient completed a cycle
bioage.calculatedNew bio-age calculation
alert.triggeredSafety alert fired
evidence.generatedNew evidence package ready
protocol.publishedNew protocol on marketplace

Rate Limits + Pricing

Start free, scale as you grow.

Free
Testing + hackathons
Free
100/day
3 scopes
POPULAR
Standard
Production apps
$0.001/req
10,000/day
6 scopes
Enterprise
Enterprise integration
Negotiated
1,000,000/day
8 scopes
Research
Academic (verified)
Free
50,000/day
6 scopes

Example Applications

Get inspired by what you can build.

Integration
Wearable Data Sync
Sync patient wearable data from Apple Health, Fitbit, or Garmin into L-Center protocols.
Analytics
Bio-Age Dashboard
Build a custom dashboard showing biological age trends for a clinic's patient cohort.
Widget
Protocol Marketplace Widget
Embed browsable protocol listings in your healthcare app.
Research
Research Data Pipeline
Export de-identified cohort data for academic analysis via OHDSI standards.

Join the L-Center Developer Community

Build the future of clinical longevity. Get early access to new APIs, share what you build, and shape the platform roadmap.

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