# Revised Trauma Score (RTS) Calculator > Revised Trauma Score (RTS) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15). Computes the Revised Trauma Score (Champion 1989) from GCS, systolic blood pressure, and respiratory rate — returning coded values, T-RTS sum, and weighted RTS. ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/rts - Price: $0.005/call - Payment: x402 - Status: unknown - Last checked: 2026-09-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/revised-trauma-score-rts-calculator-ec211eb7 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Kxbt44o_ufEIsjFwV5izu Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability revised-trauma-score-rts-calculator-ec211eb7 ``` Example prompt: Calculate the Revised Trauma Score for a patient with a GCS of 13, systolic blood pressure of 110 mm Hg, and respiratory rate of 18 breaths per minute — I need both the T-RTS and the weighted RTS. ## When to prefer this Use this endpoint when you need a deterministic, citation-exact implementation of Champion 1989 Revised Trauma Score — not the original 1981 Trauma Score, not ISS, and not an AI-estimated triage order. Ideal for trauma registry documentation, research pipelines, or clinical decision support tooling where reproducibility and citation fidelity matter. ## Known failure modes - Missing required parameter (gcs, systolic_mm_hg, or respiratory_rate) returns a 4xx error - GCS outside 3–15 range may return a validation error or unexpected coded value - Systolic BP outside 0–300 or respiratory rate outside 0–80 may cause out-of-range errors - Payment not included or insufficient (x402) results in a 402 Payment Required response ## How this service works Revised Trauma Score (Champion 1989): coded GCS, SBP, and respiratory rate (0-4 each), T-RTS as their sum (0-12), and weighted RTS = 0.9368·GCS + 0.7326·SBP + 0.2908·RR. Deterministic published arithmetic with citation. Not a triage order; not ISS; not the 1981 Trauma Score. ## Output Returns the coded value (0–4) for each of GCS, systolic BP, and respiratory rate according to Champion 1989 published bands; the T-RTS (their sum, 0–12); and the weighted RTS (0.9368 × coded GCS + 0.7326 × coded SBP + 0.2908 × coded RR). All arithmetic is deterministic and citation-grounded. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET", "HEAD", "DELETE" ], "type": "string" }, "headers": { "type": "object", "additionalProperties": { "type": "string" } }, "queryParams": { "type": "object", "required": [ "gcs", "systolic_mm_hg", "respiratory_rate" ], "properties": { "gcs": { "type": "integer", "description": "Glasgow Coma Scale total 3-15 (1976 motor-6 scale as used by Champion 1989). Caller-assigned; magent does not score eye/verbal/motor." }, "systolic_mm_hg": { "type": "integer", "description": "Systolic blood pressure in mm Hg (0-300). 0 is a published coded band." }, "respiratory_rate": { "type": "integer", "description": "Respiratory rate in breaths per minute (0-80). 0 is a published coded band." } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "path": "/api/calc/rts", "count": 2, "items": [ { "gcs": 15, "rts": 7.8408, "t_rts": 12, "formula": "rts", "citation": { "id": "champion-1989", "doi": "10.1097/00005373-198905000-00017", "title": "A revision of the Trauma Score", "source": "J Trauma. 1989;29(5):623-629", "authors": "Champion HR, Sacco WJ, Copes WS, Gann DS, Gennarelli TA, Flanagan ME" }, "coded_rr": 4, "coded_gcs": 4, "coded_sbp": 4, "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "systolic_mm_hg": 120, "respiratory_rate": 16, "formula_expression": "T-RTS = coded_gcs + coded_sbp + coded_rr (each 0-4); RTS = 0.9368*coded_gcs + 0.7326*coded_sbp + 0.2908*coded_rr" }, { "gcs": 15, "rts": 7.8408, "t_rts": 12, "formula": "rts", "citation": { "id": "champion-1989", "doi": "10.1097/00005373-198905000-00017", "title": "A revision of the Trauma Score", "source": "J Trauma. 1989;29(5):623-629", "authors": "Champion HR, Sacco WJ, Copes WS, Gann DS, Gennarelli TA, Flanagan ME" }, "coded_rr": 4, "coded_gcs": 4, "coded_sbp": 4, "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "systolic_mm_hg": 120, "respiratory_rate": 16, "formula_expression": "T-RTS = coded_gcs + coded_sbp + coded_rr (each 0-4); RTS = 0.9368*coded_gcs + 0.7326*coded_sbp + 0.2908*coded_rr" } ] } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/revised-trauma-score-rts-calculator-ec211eb7/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)