{"api":"v1","generated_at":"2026-10-02T16:17:35.619Z","licence":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","attribution":"TOLL, with a link to the page cited"},"page":"https://tollindex.com/e/api-magentlab-com-api-calc-kings-college-a5816b","pinned_page":"https://tollindex.com/e/api-magentlab-com-api-calc-kings-college-a5816b/at/2026-10-02T12-31Z","pinned":false,"method":"https://tollindex.com/ledger/method","snapshot_at":"2026-10-02T12:31:46.748Z","snapshot_stamp":"2026-10-02T12-31Z","endpoint":{"slug":"api-magentlab-com-api-calc-kings-college-a5816b","canonical_url":"https://api.magentlab.com/api/calc/kings_college","resource":"https://api.magentlab.com/api/calc/kings_college","http_method":"POST","type":"http","x402_version":2,"registries":["cdp"],"primary_registry":"cdp","curated_by_coinbase":false,"description":"King's College criteria (O'Grady 1989) for poor prognosis in fulminant hepatic failure. Acetaminophen: arterial pH <7.30, or PT >100 s plus creatinine >300 umol/L plus grade III/IV encephalopathy. Non-acetaminophen: PT >100 s, or any 3 of age <11 or >40, unfavorable etiology (non-A non-B or drug reaction), jaundice-to-encephalopathy >7 days, bilirubin >300 umol/L, PT >50 s. PT seconds, not INR. Not a transplant listing order.","service_name":"magent","declared_category":null,"declared_tags":["kings-college","liver","acetaminophen","prognosis","calculator"],"route_template":null,"registry_updated":"2026-09-28T14:04:48.568Z"},"derived":{"note":"fields no registry supplies; TOLL derives them and marks them derived on the page","title":"calc kings college","category":"other","first_observed_by_toll":"2026-09-28T13:51:25.436Z","last_observed_by_toll":"2026-10-02T12:31:46.748Z","observation_began":"2026-09-10"},"presence":{"listed_now":true,"first_absent_at":null,"delisting_confirmed_at":null,"events":[{"registry":"cdp","at":"2026-09-28T13:51:25.437Z","event":"listed"}]},"accepts":[{"registry":"cdp","ordinal":0,"network":"eip155:8453","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USD Coin","symbol":"USDC","decimals":6,"amount_display":"0.005 USDC","amount_units":0.005,"decimals_known":true,"pay_to":"0x836Be278f1739fB4308091cD1852F7971Bc19Ee2","scheme":"exact"}],"counters":{"observed_at":"2026-10-02T12:31:46.748Z","calls_30d":1,"unique_payers_30d":1,"last_called_at":"2026-09-28T14:04:48.426Z"},"validation":{"latest":{"observed_at":"2026-10-02T16:02:17.357Z","state":"pass","failed_checks":[],"endpoint_http_status":402,"run_id":"daily-2026-10-02"},"uptime":[{"days":7,"observed":6,"passed":6,"ratio":1},{"days":30,"observed":6,"passed":6,"ratio":1},{"days":90,"observed":6,"passed":6,"ratio":1}],"history_90d":[{"observed_at":"2026-10-02T16:02:17.357Z","state":"pass","failed_checks":[],"run_id":"daily-2026-10-02","state_changed":false},{"observed_at":"2026-10-01T08:49:20.386Z","state":"pass","failed_checks":[],"run_id":"daily-2026-10-01","state_changed":false},{"observed_at":"2026-09-30T08:13:49.834Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-30","state_changed":false},{"observed_at":"2026-09-29T20:23:28.284Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-29","state_changed":false},{"observed_at":"2026-09-28T17:31:10.071Z","state":"pass","failed_checks":[],"run_id":"daily-2026-09-28","state_changed":false},{"observed_at":"2026-09-28T16:46:28.911Z","state":"pass","failed_checks":[],"run_id":"new-after-daily-2026-09-28","state_changed":true}]},"seller":{"wallet":"0x836Be278f1739fB4308091cD1852F7971Bc19Ee2","page":"https://tollindex.com/seller/0x836Be278f1739fB4308091cD1852F7971Bc19Ee2","endpoints":844,"hosts":1},"reports":0,"registry_record":{"cdp":[{"tags":["kings-college","liver","acetaminophen","prognosis","calculator"],"type":"http","accepts":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2","paymentFlow":"upfront","resourceUrl":"https://api.magentlab.com/api/calc/kings_college","assetTransferMethod":"eip3009"},"payTo":"0x836Be278f1739fB4308091cD1852F7971Bc19Ee2","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":600}],"quality":{"lastCalledAt":"2026-09-28T14:04:48.426Z","l30DaysTotalCalls":1,"l30DaysUniquePayers":1},"resource":"https://api.magentlab.com/api/calc/kings_college","extensions":{"bazaar":{"info":{"input":{"body":{"items":[{"pt_sec":20,"etiology":"acetaminophen","age_years":30,"arterial_ph":7.4,"bilirubin_umol_l":50,"creatinine_umol_l":80,"encephalopathy_grade":1,"unfavorable_etiology":false,"jaundice_to_encephalopathy_days":2},{"pt_sec":20,"etiology":"acetaminophen","age_years":30,"arterial_ph":7.4,"bilirubin_umol_l":50,"creatinine_umol_l":80,"encephalopathy_grade":1,"unfavorable_etiology":false,"jaundice_to_encephalopathy_days":2}]},"type":"http","method":"POST"},"output":{"type":"json","example":{"path":"/api/calc/kings_college","count":2,"items":[{"formula":"kings_college","citation":{"id":"ogrady-1989","doi":"10.1016/0016-5085(89)90081-4","pmid":"2490426","title":"Early indicators of prognosis in fulminant hepatic failure","source":"Gastroenterology. 1989;97(2):439-445","authors":"O'Grady JG, Alexander GJ, Hayllar KM, Williams R"},"criteria":[{"met":false,"value":7.4,"factor":"arterial_ph_lt_7_30"},{"met":false,"value":20,"factor":"pt_sec_gt_100"},{"met":false,"value":80,"factor":"creatinine_umol_l_gt_300"},{"met":false,"value":1,"factor":"encephalopathy_grade_ge_3"}],"etiology":"acetaminophen","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.","criteria_met":false,"formula_expression":"acetaminophen: arterial_ph < 7.30, or (pt_sec > 100 and creatinine_umol_l > 300 and encephalopathy_grade >= 3); non_acetaminophen: pt_sec > 100, or at least 3 of (age_years < 11 or > 40; unfavorable_etiology; jaundice_to_encephalopathy_days > 7; bilirubin_umol_l > 300; pt_sec > 50)"},{"formula":"kings_college","citation":{"id":"ogrady-1989","doi":"10.1016/0016-5085(89)90081-4","pmid":"2490426","title":"Early indicators of prognosis in fulminant hepatic failure","source":"Gastroenterology. 1989;97(2):439-445","authors":"O'Grady JG, Alexander GJ, Hayllar KM, Williams R"},"criteria":[{"met":false,"value":7.4,"factor":"arterial_ph_lt_7_30"},{"met":false,"value":20,"factor":"pt_sec_gt_100"},{"met":false,"value":80,"factor":"creatinine_umol_l_gt_300"},{"met":false,"value":1,"factor":"encephalopathy_grade_ge_3"}],"etiology":"acetaminophen","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.","criteria_met":false,"formula_expression":"acetaminophen: arterial_ph < 7.30, or (pt_sec > 100 and creatinine_umol_l > 300 and encephalopathy_grade >= 3); non_acetaminophen: pt_sec > 100, or at least 3 of (age_years < 11 or > 40; unfavorable_etiology; jaundice_to_encephalopathy_days > 7; bilirubin_umol_l > 300; pt_sec > 50)"}]}},"iconUrl":"https://api.magentlab.com/favicon.ico"},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"body":{"type":"object","required":["items"],"properties":{"items":{"type":"array","items":{"type":"object","required":["etiology","arterial_ph","pt_sec","creatinine_umol_l","encephalopathy_grade","age_years","unfavorable_etiology","jaundice_to_encephalopathy_days","bilirubin_umol_l"],"properties":{"pt_sec":{"type":"number","description":"Prothrombin time in seconds (8-120) as published in 1989. INR is not accepted. Acetaminophen combo uses PT > 100; non-acetaminophen uses PT > 100 alone or PT > 50 as one of five factors."},"etiology":{"enum":["acetaminophen","non_acetaminophen"],"type":"string","description":"acetaminophen or non_acetaminophen (O'Grady 1989). Selects the paracetamol or non-paracetamol poor-prognosis tree. Required on every request."},"age_years":{"type":"integer","description":"Age in years (0-120). Non-acetaminophen factor met when age < 11 or age > 40 (1989 abstract, not a later <10 restatement). Required even on the acetaminophen tree; not scored there."},"arterial_ph":{"type":"number","description":"Arterial pH (6.80-7.80). Acetaminophen criterion met when pH < 7.30, independent of encephalopathy. Required even on the non-acetaminophen tree; not scored there."},"bilirubin_umol_l":{"type":"number","description":"Serum bilirubin in umol/L (2-684). Non-acetaminophen factor met when > 300. Required even on the acetaminophen tree; not scored there."},"creatinine_umol_l":{"type":"number","description":"Serum creatinine in umol/L (9-1768). Acetaminophen combo criterion met when > 300. Required even on the non-acetaminophen tree; not scored there."},"encephalopathy_grade":{"type":"integer","description":"Hepatic encephalopathy grade 0-4 as assigned by the caller (Conn 1977 / West Haven). Acetaminophen combo uses grade >= 3 (grade III/IV). Required even on the non-acetaminophen tree; not scored there. magent does not examine the patient."},"unfavorable_etiology":{"type":"boolean","description":"Unfavorable etiology as assigned by the caller (paper: non-A non-B hepatitis or drug reaction). true or false. Non-acetaminophen any-3 factor. Required even on the acetaminophen tree; not scored there."},"jaundice_to_encephalopathy_days":{"type":"integer","description":"Days from jaundice to encephalopathy (integer 0-90). Non-acetaminophen factor met when > 7. Required even on the acetaminophen tree; not scored there."}}},"maxItems":25,"minItems":1}},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"type":"string","const":"POST"},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}}}},"description":"King's College criteria (O'Grady 1989) for poor prognosis in fulminant hepatic failure. Acetaminophen: arterial pH <7.30, or PT >100 s plus creatinine >300 umol/L plus grade III/IV encephalopathy. Non-acetaminophen: PT >100 s, or any 3 of age <11 or >40, unfavorable etiology (non-A non-B or drug reaction), jaundice-to-encephalopathy >7 days, bilirubin >300 umol/L, PT >50 s. PT seconds, not INR. Not a transplant listing order.","lastUpdated":"2026-09-28T14:04:48.568Z","serviceName":"magent","x402Version":2}]}}