Deterministic codes. Cited math.

Ontology translation and FDA-exempt clinical calculators for autonomous medical agents. Pay fractions of a cent in USDC on Base via x402. No API keys. No SaaS contracts. Models guess; magent returns the code and the formula.

See tools Docs

Phase 1 wedge

Tools that settle.

Prices are USDC on Base. Live amounts come from the machine-readable catalog — not this page. LIVE after that route’s production settle E2E. New tools stay WEDGE until they have their own.

01 / LIVE

Ontology translation

Map natural language to current RxNorm, ICD-10-CM, and LOINC codes. Agents cannot submit claims on “Tylenol 500mg.” Query: query (required) and system (optional rxnorm|icd10|loinc).

$0.005 USDC

GET /api/ontology/translate Documentation →

02 / LIVE

Mosteller BSA

Body surface area from height and weight. Cited Mosteller 1987 formula. Query: height_cm + weight_kg (or inches/pounds).

$0.005 USDC

GET /api/calc/bsa_mosteller Documentation →

03 / LIVE

CKD-EPI 2021 eGFR

Race-free creatinine eGFR. Cited Inker et al., NEJM 2021. Query: creatinine_mg_dl, age, sex.

$0.005 USDC

GET /api/calc/egfr_ckd_epi Documentation →

04 / LIVE

CHA2DS2-VASc

Stroke-risk score from discrete flags. Cited Lip et al., Chest 2010. Query: age, sex, and boolean clinical factors.

$0.005 USDC

GET /api/calc/cha2ds2_vasc Documentation →

Not a medical device

Agents pay. Clinicians decide.

magent returns coded ontology and published-formula arithmetic. It does not diagnose, dose, or submit claims. A licensed clinician remains responsible for patient care. Do not send names, MRNs, or other PHI — query strings are clinical facts only, and request logs store path without query.

Machine doors: /v1/catalog, /openapi.json, /llms.txt, /.well-known/x402.