# magent Glasgow Coma Scale (GCS) Calculator > magent Glasgow Coma Scale (GCS) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11). Computes the Glasgow Coma Scale total score from eye, verbal, and motor sub-scores using the specified 1974 or 1976 edition, returning a deterministic published score with citation. ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/gcs?utm_source=zero.xyz - Price: $0.005/call - Payment: x402 - Status: unknown - Last checked: 2026-10-11 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/magent-glasgow-coma-scale-gcs-calculator-d6f19a48 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4vRrBygpkyoU4JhBM2bfn 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 magent-glasgow-coma-scale-gcs-calculator-d6f19a48 ``` Example prompt: Calculate the Glasgow Coma Scale score for a patient with eye opening of 3, verbal response of 4, and motor response of 5 using the 1976 edition. ## When to prefer this Use this endpoint when you need a deterministic, citable Glasgow Coma Scale score computed according to a specific published edition (1974 or 1976). Prefer it over manual calculation to ensure correctness, auditability, and inclusion of a bibliographic citation for clinical documentation. It is ideal for EHR automation, clinical decision support agents, and audit trails where a referenced score — not just a sum — is required. ## Known failure modes - Missing required parameters (eye, verbal, motor, edition) return a 400 error - Motor score out of range for specified edition (e.g., motor=6 with edition=1974) returns an error - Eye score outside 1-4 or verbal score outside 1-5 returns a validation error - Non-integer values for sub-scores return a type error - Missing edition parameter returns an error since the API never auto-selects ## How this service works Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402. ## Output Returns the deterministic GCS total score (max 14 for 1974 edition, max 15 for 1976 edition), the three component sub-scores (E, V, M), the applicable edition, the score maximum, and a published clinical citation — but explicitly not a diagnosis. ## 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": [ "eye", "verbal", "motor", "edition" ], "properties": { "eye": { "type": "integer", "description": "Eye opening (E). Integer 1-4 as assigned by the caller." }, "motor": { "type": "integer", "description": "Motor response (M). Integer 1-5 when edition=1974, or 1-6 when edition=1976, as assigned by the caller." }, "verbal": { "type": "integer", "description": "Verbal response (V). Integer 1-5 as assigned by the caller." }, "edition": { "enum": [ "1974", "1976" ], "type": "string", "description": "Published motor scale. Required; magent does not pick 1974 (motor 1-5) or 1976 (motor 1-6)." } } } }, "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/gcs", "count": 2, "items": [ { "score": 15, "edition": "1976", "formula": "gcs", "citation": { "id": "teasdale-jennett-1976", "doi": "10.1007/BF01405862", "title": "Assessment and prognosis of coma after head injury", "source": "Acta Neurochir (Wien). 1976;34:45-55", "authors": "Teasdale G, Jennett B" }, "max_score": 15, "components": [ { "value": 4, "factor": "eye", "points": 4, "present": true }, { "value": 5, "factor": "verbal", "points": 5, "present": true }, { "value": 6, "factor": "motor", "points": 6, "present": true } ], "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.", "formula_expression": "GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15" }, { "score": 15, "edition": "1976", "formula": "gcs", "citation": { "id": "teasdale-jennett-1976", "doi": "10.1007/BF01405862", "title": "Assessment and prognosis of coma after head injury", "source": "Acta Neurochir (Wien). 1976;34:45-55", "authors": "Teasdale G, Jennett B" }, "max_score": 15, "components": [ { "value": 4, "factor": "eye", "points": 4, "present": true }, { "value": 5, "factor": "verbal", "points": 5, "present": true }, { "value": 6, "factor": "motor", "points": 6, "present": true } ], "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.", "formula_expression": "GCS = eye + verbal + motor; eye 1-4, verbal 1-5, motor 1-6; max 15" } ] } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-glasgow-coma-scale-gcs-calculator-d6f19a48/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)