# Hamilton anxiety rating scale HAM-A Status: LIVE Price: $0.005 USDC `GET /api/calc/hamilton_anxiety` HTML: https://magentlab.com/docs/hamilton-anxiety Markdown: https://magentlab.com/docs/hamilton-anxiety.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Sum fourteen caller-assigned Hamilton 1959 HAM-A items (each integer 0-4) and return the published 0-56 total. Does not apply later total-score severity bands. ## When to use When an agent already has Hamilton 1959 0-4 integers for the fourteen items and needs the published total. magent does not interview the patient, diagnose anxiety, or apply later 17/24 cutoffs. ## When not to use - Not a medical device and not an anxiety diagnosis or treatment order. - Each of the fourteen items is a caller-assigned integer 0-4 (0 not present, 1 mild, 2 moderate, 3 severe, 4 very severe). magent does not interview the patient. - This is Hamilton 1959 HAM-A only (fourteen items; max 56). magent does not score GAD-7, PHQ-9, or Hamilton depression. - Hamilton 1959 published no total-score severity bands. This tool returns score and max_score only. It does not apply later 17/24 website or review cutoffs. ## Formula ``` HAM-A = anxious_mood + tension + fears + insomnia + intellectual + depressed_mood + somatic_muscular + somatic_sensory + cardiovascular + respiratory + gastrointestinal + genitourinary + autonomic + interview_behavior; each caller-assigned 0-4; max 56; Hamilton 1959; no total-score severity bands ``` ## Citation [The assessment of anxiety states by rating](https://doi.org/10.1111/j.2044-8341.1959.tb00467.x) Hamilton M Br J Med Psychol. 1959;32(1):50-55 DOI: [10.1111/j.2044-8341.1959.tb00467.x](https://doi.org/10.1111/j.2044-8341.1959.tb00467.x) ## Worked example ### All items 0 Given: `anxious_mood=0, autonomic=0, cardiovascular=0, depressed_mood=0, fears=0, gastrointestinal=0, genitourinary=0, insomnia=0, intellectual=0, interview_behavior=0, respiratory=0, somatic_muscular=0, somatic_sensory=0, tension=0` 1. anxious_mood, tension, fears, insomnia, intellectual, depressed_mood, somatic_muscular, somatic_sensory, cardiovascular, respiratory, gastrointestinal, genitourinary, autonomic, and interview_behavior are 0 as assigned by the caller 2. Score = 0 (max 56). Hamilton 1959 published no total-score severity band. ### All items 4 Given: `anxious_mood=4, autonomic=4, cardiovascular=4, depressed_mood=4, fears=4, gastrointestinal=4, genitourinary=4, insomnia=4, intellectual=4, interview_behavior=4, respiratory=4, somatic_muscular=4, somatic_sensory=4, tension=4` 1. each of the fourteen Hamilton 1959 items is 4 as assigned by the caller 2. Score = 56 (max 56). No total-score severity band. ## Also searched as - HAM-A - Hamilton anxiety rating scale - Hamilton Anxiety Scale - HARS - Hamilton 1959 anxiety - HAM-A score - 14-item Hamilton anxiety - anxiety neurosis rating ## Parameters - `anxious_mood` (integer, required): Caller-assigned Hamilton 1959 anxious mood (integer 0-4: 0 not present, 1 mild, 2 moderate, 3 severe, 4 very severe): worries, anticipation of the worst, fearful anticipation, irritability. magent does not interview the patient. - `tension` (integer, required): Caller-assigned Hamilton 1959 tension (integer 0-4): feelings of tension, fatigability, startle response, moved to tears easily, trembling, restlessness, inability to relax. magent does not interview the patient. - `fears` (integer, required): Caller-assigned Hamilton 1959 fears (integer 0-4): of dark, of strangers, of being left alone, of animals, of traffic, of crowds. magent does not interview the patient. - `insomnia` (integer, required): Caller-assigned Hamilton 1959 insomnia (integer 0-4): difficulty falling asleep, broken sleep, unsatisfying sleep and fatigue on waking, dreams, nightmares, night terrors. magent does not interview the patient. - `intellectual` (integer, required): Caller-assigned Hamilton 1959 intellectual / cognitive (integer 0-4): difficulty in concentration, poor memory. magent does not interview the patient. - `depressed_mood` (integer, required): Caller-assigned Hamilton 1959 depressed mood (integer 0-4): loss of interest, lack of pleasure in hobbies, depression, early waking, diurnal swing. magent does not interview the patient. - `somatic_muscular` (integer, required): Caller-assigned Hamilton 1959 somatic (muscular) (integer 0-4): pains and aches, twitching, stiffness, myoclonic jerks, grinding of teeth, unsteady voice, increased muscular tone. magent does not interview the patient. - `somatic_sensory` (integer, required): Caller-assigned Hamilton 1959 somatic (sensory) (integer 0-4): tinnitus, blurring of vision, hot and cold flushes, feelings of weakness, pricking sensation. magent does not interview the patient. - `cardiovascular` (integer, required): Caller-assigned Hamilton 1959 cardiovascular symptoms (integer 0-4): tachycardia, palpitations, pain in chest, throbbing of vessels, fainting feelings, missing beat. magent does not interview the patient. - `respiratory` (integer, required): Caller-assigned Hamilton 1959 respiratory symptoms (integer 0-4): pressure or constriction in chest, choking feelings, sighing, dyspnea. magent does not interview the patient. - `gastrointestinal` (integer, required): Caller-assigned Hamilton 1959 gastro-intestinal symptoms (integer 0-4): difficulty in swallowing, wind, abdominal pain, burning sensations, abdominal fullness, nausea, vomiting, borborygmi, looseness of bowels, loss of weight, constipation. magent does not interview the patient. - `genitourinary` (integer, required): Caller-assigned Hamilton 1959 genito-urinary symptoms (integer 0-4): frequency or urgency of micturition, amenorrhea, menorrhagia, development of frigidity, premature ejaculation, loss of libido, impotence. magent does not interview the patient. - `autonomic` (integer, required): Caller-assigned Hamilton 1959 autonomic symptoms (integer 0-4): dry mouth, flushing, pallor, tendency to sweat, giddiness, tension headache, raising of hair. magent does not interview the patient. - `interview_behavior` (integer, required): Caller-assigned Hamilton 1959 behaviour at interview (integer 0-4): fidgeting, restlessness or pacing, tremor of hands, furrowed brow, strained face, sighing or rapid respiration, facial pallor, swallowing. magent does not interview the patient. ## Bulk (POST) POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement. Method: `POST /api/calc/hamilton_anxiety` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: PREVIEW - 1 to 25 items. Each item uses the same keys as the GET query parameters. - POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows. - The first invalid item fails the whole request (index in the 400 JSON). You are not charged. - HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row. - Catalog misses (empty matches, found=false) stay paid 200s inside that slot. - x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items. Example request: ```json { "items": [ { "anxious_mood": "0", "autonomic": "0", "cardiovascular": "0", "depressed_mood": "0", "fears": "0", "gastrointestinal": "0", "genitourinary": "0", "insomnia": "0", "intellectual": "0", "interview_behavior": "0", "respiratory": "0", "somatic_muscular": "0", "somatic_sensory": "0", "tension": "0" }, { "anxious_mood": "0", "autonomic": "0", "cardiovascular": "0", "depressed_mood": "0", "fears": "0", "gastrointestinal": "0", "genitourinary": "0", "insomnia": "0", "intellectual": "0", "interview_behavior": "0", "respiratory": "0", "somatic_muscular": "0", "somatic_sensory": "0", "tension": "0" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/hamilton-anxiety Example 200: ```json { "count": 2, "path": "/api/calc/hamilton_anxiety", "items": [ { "components": [ { "value": 0, "factor": "anxious_mood", "points": 0, "present": true }, { "value": 0, "factor": "tension", "points": 0, "present": true }, { "value": 0, "factor": "fears", "points": 0, "present": true }, { "value": 0, "factor": "insomnia", "points": 0, "present": true }, { "value": 0, "factor": "intellectual", "points": 0, "present": true }, { "value": 0, "factor": "depressed_mood", "points": 0, "present": true }, { "value": 0, "factor": "somatic_muscular", "points": 0, "present": true }, { "value": 0, "factor": "somatic_sensory", "points": 0, "present": true }, { "value": 0, "factor": "cardiovascular", "points": 0, "present": true }, { "value": 0, "factor": "respiratory", "points": 0, "present": true }, { "value": 0, "factor": "gastrointestinal", "points": 0, "present": true }, { "value": 0, "factor": "genitourinary", "points": 0, "present": true }, { "value": 0, "factor": "autonomic", "points": 0, "present": true }, { "value": 0, "factor": "interview_behavior", "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.", "citation": { "authors": "Hamilton M", "doi": "10.1111/j.2044-8341.1959.tb00467.x", "id": "hamilton-1959", "pmid": "13638508", "source": "Br J Med Psychol. 1959;32(1):50-55", "title": "The assessment of anxiety states by rating" }, "formula": "hamilton_anxiety", "formula_expression": "HAM-A = anxious_mood + tension + fears + insomnia + intellectual + depressed_mood + somatic_muscular + somatic_sensory + cardiovascular + respiratory + gastrointestinal + genitourinary + autonomic + interview_behavior; each caller-assigned 0-4; max 56; Hamilton 1959; no total-score severity bands", "max_score": 56, "score": 0 }, { "components": [ { "value": 0, "factor": "anxious_mood", "points": 0, "present": true }, { "value": 0, "factor": "tension", "points": 0, "present": true }, { "value": 0, "factor": "fears", "points": 0, "present": true }, { "value": 0, "factor": "insomnia", "points": 0, "present": true }, { "value": 0, "factor": "intellectual", "points": 0, "present": true }, { "value": 0, "factor": "depressed_mood", "points": 0, "present": true }, { "value": 0, "factor": "somatic_muscular", "points": 0, "present": true }, { "value": 0, "factor": "somatic_sensory", "points": 0, "present": true }, { "value": 0, "factor": "cardiovascular", "points": 0, "present": true }, { "value": 0, "factor": "respiratory", "points": 0, "present": true }, { "value": 0, "factor": "gastrointestinal", "points": 0, "present": true }, { "value": 0, "factor": "genitourinary", "points": 0, "present": true }, { "value": 0, "factor": "autonomic", "points": 0, "present": true }, { "value": 0, "factor": "interview_behavior", "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.", "citation": { "authors": "Hamilton M", "doi": "10.1111/j.2044-8341.1959.tb00467.x", "id": "hamilton-1959", "pmid": "13638508", "source": "Br J Med Psychol. 1959;32(1):50-55", "title": "The assessment of anxiety states by rating" }, "formula": "hamilton_anxiety", "formula_expression": "HAM-A = anxious_mood + tension + fears + insomnia + intellectual + depressed_mood + somatic_muscular + somatic_sensory + cardiovascular + respiratory + gastrointestinal + genitourinary + autonomic + interview_behavior; each caller-assigned 0-4; max 56; Hamilton 1959; no total-score severity bands", "max_score": 56, "score": 0 } ] } ``` ## Response fields - `formula` (string): hamilton_anxiety - `formula_expression` (string): Exact expression used - `score` (integer): Hamilton 1959 HAM-A sum of fourteen caller-assigned 0-4 items (0-56) - `max_score` (integer): Always 56 - `components` (array): Per-item caller-assigned points - `citation` (object): Hamilton Br J Med Psychol 1959 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "value": 0, "factor": "anxious_mood", "points": 0, "present": true }, { "value": 0, "factor": "tension", "points": 0, "present": true }, { "value": 0, "factor": "fears", "points": 0, "present": true }, { "value": 0, "factor": "insomnia", "points": 0, "present": true }, { "value": 0, "factor": "intellectual", "points": 0, "present": true }, { "value": 0, "factor": "depressed_mood", "points": 0, "present": true }, { "value": 0, "factor": "somatic_muscular", "points": 0, "present": true }, { "value": 0, "factor": "somatic_sensory", "points": 0, "present": true }, { "value": 0, "factor": "cardiovascular", "points": 0, "present": true }, { "value": 0, "factor": "respiratory", "points": 0, "present": true }, { "value": 0, "factor": "gastrointestinal", "points": 0, "present": true }, { "value": 0, "factor": "genitourinary", "points": 0, "present": true }, { "value": 0, "factor": "autonomic", "points": 0, "present": true }, { "value": 0, "factor": "interview_behavior", "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.", "citation": { "authors": "Hamilton M", "doi": "10.1111/j.2044-8341.1959.tb00467.x", "id": "hamilton-1959", "pmid": "13638508", "source": "Br J Med Psychol. 1959;32(1):50-55", "title": "The assessment of anxiety states by rating" }, "formula": "hamilton_anxiety", "formula_expression": "HAM-A = anxious_mood + tension + fears + insomnia + intellectual + depressed_mood + somatic_muscular + somatic_sensory + cardiovascular + respiratory + gastrointestinal + genitourinary + autonomic + interview_behavior; each caller-assigned 0-4; max 56; Hamilton 1959; no total-score severity bands", "max_score": 56, "score": 0 } ``` ## Errors - HTTP 400 `invalid_hamilton_anxiety`: Each Hamilton 1959 anxiety item must be an integer 0–4 as published. Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [GAD-7](https://magentlab.com/docs/gad-7) — Sum seven caller-assigned Spitzer 2006 GAD-7 integers (0-3) and return the published 0-21 total, 5/10/15 severity cuts, and ≥10 case-finding flag. - [PHQ-9](https://magentlab.com/docs/phq-9) — Sum nine caller-assigned Kroenke 2001 PHQ-9 integers (0-3) and return the published total (max 27), severity cutpoints, and ≥10 screen. - [CIWA-Ar](https://magentlab.com/docs/ciwa-ar) — Sum the ten Sullivan 1989 CIWA-Ar items (nine caller-assigned 0-7 plus orientation 0-4) and return the published total (max 67). ## Payment Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/docs/mcp ## Guarantees - HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON. - exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE. - HTTP 402 is unpaid only. Do not sign a second authorization because of a 503. - Execution is timeout-bounded and concurrency-capped. - Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.