🔐 FHE-as-a-Service

165 Clinical Scores · Fully Homomorphic Encrypted · Zero-Knowledge

HIPAA GDPR LFPDPPP 128-bit TFHE

Quick Start

1. Register (free, instant)

curl -X POST https://rheumascore.xyz/fhe/v1/register   -H 'Content-Type: application/json'   -d '{"agent_name": "my-medical-agent"}'

2. Compute a Score

curl -X POST https://rheumascore.xyz/fhe/v1/compute/das28   -H 'Authorization: Bearer fhe_YOUR_KEY'   -H 'Content-Type: application/json'   -d '{"values": [10, 5, 40, 60]}'

API Endpoints

Method	Path	Description
GET	`/fhe/v1/health`	Service status & pricing
POST	`/fhe/v1/register`	Register agent, get API key
GET	`/fhe/v1/scores`	List all 165 scores
GET	`/fhe/v1/schema/:key`	Input schema for a score
POST	`/fhe/v1/compute/:key`	Compute single score (FHE)
POST	`/fhe/v1/batch`	Batch compute (up to 20)
POST	`/fhe/v1/encrypt`	General-purpose FHE encryption
GET	`/fhe/v1/usage`	Usage stats & billing

Pricing

Tier	Price	Details
Free	/bin/bash	10 computations/day per API key
Single Score	/bin/bash.01 USDC	Per computation beyond free tier
Batch	/bin/bash.005 USDC	Per score in batch (min 5)
General Encrypt	/bin/bash.02 USDC	Per FHE encrypt operation
Clinical Report	/bin/bash.10 USDC	Full multi-score report
Monthly Unlimited	0 USDC	Unlimited everything

Payment

x402 protocol — USDC on Base chain

Recipient: 0x86Dc0Eca5ff55465B805eD334797A00Ad47F65c2

Include X-Payment: <tx_hash> header after free tier exhaustion.

Score Categories

Rheumatology (50+)

DAS28-CRP, DAS28-ESR, 2C-DAS28, SLEDAI-2K, SDI, SDAI, CDAI, BASDAI, ASDAS, BILAG, PGA, HAQ, RAPID3, DAPSA, BVAS, VDI, mRSS, PASI, CLASI, CDASI, ESSDAI, ESSPRI, ITAS, GaPSS, DETECT...

Classification Criteria (20+)

ACR/EULAR RA, SLICC SLE, SSc, Sjögren, CASPAR, Gout, Fibromyalgia, SpA, Behçet, APS, IgG4-RD, PMR, FMF, GPA, EGPA, Sarcoidosis, VEXAS...

Critical Care & General

SOFA, qSOFA, NEWS2, MELD, Child-Pugh, CHA₂DS₂-VASc, MASCC, FRAX

Pharmacovigilance

MTX Toxicity, HCQ Retinal Risk, NSAID GI/Renal Risk, Statin Myopathy, GTI, DILI

Pregnancy

PROMISSE, HDP Risk, APS Obstetric, Lactation Safety, Preconception Risk

Geriatrics

Frailty CFS, Sarcopenia, Falls Risk, Barthel, Katz ADL, Lawton IADL, TUG

Hepatology

FIB-4, APRI, NAFLD Fibrosis, ALBI Grade, Maddrey DF, Lille, CLIF-ACLF

Security

TFHE — 128-bit Fully Homomorphic Encryption
Zero-Knowledge — Server computes on ciphertext, never sees plaintext
API Key Auth — SHA-256 hashed storage, no plaintext keys in DB
Rate Limiting — 30 req/min per IP, daily caps per key
No PHI Logging — Only encrypted computation metadata
Compliance — HIPAA, LFPDPPP, GDPR, FDA 21 CFR Part 11

Built by RheumaScore · CryptoReuMd.eth & DNAI · DeSci