# magent ECOG Performance Status Calculator > magent ECOG Performance Status Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14). Validates and returns a structured ECOG performance status score (0–4) with label and citation, given a caller-assigned integer per the Oken 1982 scale ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/ecog - Price: $0.005/call - Payment: x402 - Status: unknown - Last checked: 2026-09-14 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/magent-ecog-performance-status-calculator-0b66f55a - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_omD6M9ba49N2OFrR76Upn 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-ecog-performance-status-calculator-0b66f55a ``` Example prompt: Look up the ECOG performance status label and structured score for a patient assigned a grade 2 — ambulatory but unable to work — using the Oken 1982 scale. ## When to prefer this Use this endpoint when an AI agent needs a deterministic, citable, structured encoding of a caller-assigned ECOG performance status integer — especially in autonomous clinical, trial eligibility, or documentation workflows where a published reference (Oken 1982) and a stable label are required. Do not use if you need to assess or observe a patient's functional status, or if you need Karnofsky rather than ECOG scoring. ## Known failure modes - Missing or invalid 'ecog' query parameter — returns error if not provided - Integer out of range (e.g. 5 or negative) — grade 5 (dead) is explicitly not scored - Non-integer value for ecog parameter — type mismatch error - Payment not processed — x402 payment required error before response is returned ## How this service works Oken 1982 ECOG performance status: caller-assigned integer 0-4 (fully active; restricted strenuous activity, ambulatory, light work; ambulatory, all self-care, unable to work, up >50% waking hours; limited self-care, bed/chair >50% waking hours; completely disabled, no self-care, totally bed/chair). Grade 5 (dead) is not scored. Returns score, max 4, and a stable label. Not a performance-status assignment and not Karnofsky; magent does not observe the patient. ## Output Returns a JSON object containing the ECOG score (integer 0–4), the ecog_grade, the ecog_label (e.g. 'fully_active'), max_score (4), a components breakdown, the formula expression, a full Oken 1982 citation (DOI, PMID, title, authors, source), and a disclaimer that this is not a medical device and a licensed clinician is responsible for patient care. ## 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": [ "ecog" ], "properties": { "ecog": { "type": "integer", "description": "Oken 1982 ECOG performance status 0-4 as assigned by the caller (0 fully active; 1 restricted strenuous activity, ambulatory, light work; 2 ambulatory, all self-care, unable to work, up >50% waking hours; 3 limited self-care, bed/chair >50% waking hours; 4 completely disabled, no self-care, totally bed/chair). Grade 5 (dead) is not scored. magent does not observe the patient." } } } }, "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/ecog", "count": 2, "items": [ { "score": 0, "formula": "ecog", "citation": { "id": "oken-1982", "doi": "10.1097/00000421-198212000-00014", "pmid": "7165009", "title": "Toxicity and response criteria of the Eastern Cooperative Oncology Group", "source": "Am J Clin Oncol. 1982;5(6):649-655", "authors": "Oken MM, Creech RH, Tormey DC, Horton J, Davis TE, McFadden ET, Carbone PP" }, "max_score": 4, "components": [ { "factor": "ecog", "points": 0, "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.", "ecog_grade": 0, "ecog_label": "fully_active", "formula_expression": "ECOG performance status = caller-assigned integer 0-4 (Oken 1982); max 4; grade 5 (dead) is not scored" }, { "score": 0, "formula": "ecog", "citation": { "id": "oken-1982", "doi": "10.1097/00000421-198212000-00014", "pmid": "7165009", "title": "Toxicity and response criteria of the Eastern Cooperative Oncology Group", "source": "Am J Clin Oncol. 1982;5(6):649-655", "authors": "Oken MM, Creech RH, Tormey DC, Horton J, Davis TE, McFadden ET, Carbone PP" }, "max_score": 4, "components": [ { "factor": "ecog", "points": 0, "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.", "ecog_grade": 0, "ecog_label": "fully_active", "formula_expression": "ECOG performance status = caller-assigned integer 0-4 (Oken 1982); max 4; grade 5 (dead) is not scored" } ] } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-ecog-performance-status-calculator-0b66f55a/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)