# GAD-7 GAD-7 Status: LIVE Price: $0.005 USDC `GET /api/calc/gad_7` HTML: https://magentlab.com/docs/gad-7 Markdown: https://magentlab.com/docs/gad-7.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes 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. ## When to use When an agent has already assigned the seven Spitzer 2006 item scores and needs the published GAD-7 total, severity cuts, and ≥10 case-finding flag, not a diagnosis, PHQ-9, or GAD-2. ## When not to use - Not a medical device and not a GAD diagnosis. - nervous, control_worry, worry_too_much, relaxing, restless, irritable, and afraid are caller-assigned integers 0-3 (0 not at all, 1 several days, 2 more than half the days, 3 nearly every day). magent does not interpret the items. - Cut points are Spitzer 2006 5 / 10 / 15 (mild / moderate / severe). Scores 0-4 are below the mild cut of 5 and return severity minimal; that is not an extra named class in the paper. - case_finding_ge_10 is this paper's GAD-7 ≥10 operating point (sensitivity 89% and specificity 82% for GAD). Not a treatment order. Not PHQ-9. Not GAD-2. ## Formula ``` GAD-7 = nervous + control_worry + worry_too_much + relaxing + restless + irritable + afraid; each caller-assigned 0-3; max 21 ``` ## Citation [A brief measure for assessing generalized anxiety disorder: the GAD-7](https://doi.org/10.1001/archinte.166.10.1092) Spitzer RL, Kroenke K, Williams JBW, Löwe B Arch Intern Med. 2006;166(10):1092-1097 DOI: [10.1001/archinte.166.10.1092](https://doi.org/10.1001/archinte.166.10.1092) ## Worked example ### All items 0 Given: `afraid=0, control_worry=0, irritable=0, nervous=0, relaxing=0, restless=0, worry_too_much=0` 1. nervous 0 + control_worry 0 + worry_too_much 0 + relaxing 0 + restless 0 + irritable 0 + afraid 0 2. Score = 0 (max 21); severity minimal; case_finding_ge_10 false ### Five items at 2 Given: `afraid=0, control_worry=2, irritable=0, nervous=2, relaxing=2, restless=2, worry_too_much=2` 1. Score = 10 2. severity moderate; case_finding_ge_10 true (Spitzer 2006 ≥10 operating point) ### All items 3 Given: `afraid=3, control_worry=3, irritable=3, nervous=3, relaxing=3, restless=3, worry_too_much=3` 1. Score = 21 (max 21) 2. severity severe; case_finding_ge_10 true ## Also searched as - GAD-7 - GAD7 - generalized anxiety disorder 7 - Spitzer GAD-7 - GAD-7 score - anxiety GAD-7 - GAD seven ## Parameters - `nervous` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 1 points (integer 0-3): feeling nervous, anxious, or on edge. magent does not interpret the item. - `control_worry` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 2 points (integer 0-3): not being able to stop or control worrying. magent does not interpret the item. - `worry_too_much` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 3 points (integer 0-3): worrying too much about different things. magent does not interpret the item. - `relaxing` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 4 points (integer 0-3): trouble relaxing. magent does not interpret the item. - `restless` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 5 points (integer 0-3): being so restless that it is hard to sit still. magent does not interpret the item. - `irritable` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 6 points (integer 0-3): becoming easily annoyed or irritable. magent does not interpret the item. - `afraid` (integer, required): Caller-assigned Spitzer 2006 GAD-7 item 7 points (integer 0-3): feeling afraid as if something awful might happen. magent does not interpret the item. ## 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/gad_7` 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": [ { "afraid": "0", "control_worry": "0", "irritable": "0", "nervous": "0", "relaxing": "0", "restless": "0", "worry_too_much": "0" }, { "afraid": "0", "control_worry": "0", "irritable": "0", "nervous": "0", "relaxing": "0", "restless": "0", "worry_too_much": "0" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/gad-7 Example 200: ```json { "count": 2, "path": "/api/calc/gad_7", "items": [ { "components": [ { "value": 0, "factor": "nervous", "points": 0, "present": true }, { "value": 0, "factor": "control_worry", "points": 0, "present": true }, { "value": 0, "factor": "worry_too_much", "points": 0, "present": true }, { "value": 0, "factor": "relaxing", "points": 0, "present": true }, { "value": 0, "factor": "restless", "points": 0, "present": true }, { "value": 0, "factor": "irritable", "points": 0, "present": true }, { "value": 0, "factor": "afraid", "points": 0, "present": true } ], "severity": "minimal", "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": "Spitzer RL, Kroenke K, Williams JBW, Löwe B", "doi": "10.1001/archinte.166.10.1092", "id": "spitzer-2006", "pmid": "16717171", "source": "Arch Intern Med. 2006;166(10):1092-1097", "title": "A brief measure for assessing generalized anxiety disorder: the GAD-7" }, "formula": "gad_7", "formula_expression": "GAD-7 = nervous + control_worry + worry_too_much + relaxing + restless + irritable + afraid; each caller-assigned 0-3; max 21", "max_score": 21, "score": 0, "case_finding_ge_10": false }, { "components": [ { "value": 0, "factor": "nervous", "points": 0, "present": true }, { "value": 0, "factor": "control_worry", "points": 0, "present": true }, { "value": 0, "factor": "worry_too_much", "points": 0, "present": true }, { "value": 0, "factor": "relaxing", "points": 0, "present": true }, { "value": 0, "factor": "restless", "points": 0, "present": true }, { "value": 0, "factor": "irritable", "points": 0, "present": true }, { "value": 0, "factor": "afraid", "points": 0, "present": true } ], "severity": "minimal", "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": "Spitzer RL, Kroenke K, Williams JBW, Löwe B", "doi": "10.1001/archinte.166.10.1092", "id": "spitzer-2006", "pmid": "16717171", "source": "Arch Intern Med. 2006;166(10):1092-1097", "title": "A brief measure for assessing generalized anxiety disorder: the GAD-7" }, "formula": "gad_7", "formula_expression": "GAD-7 = nervous + control_worry + worry_too_much + relaxing + restless + irritable + afraid; each caller-assigned 0-3; max 21", "max_score": 21, "score": 0, "case_finding_ge_10": false } ] } ``` ## Response fields - `formula` (string): gad_7 - `formula_expression` (string): Exact expression used - `score` (integer): GAD-7 points 0-21 - `max_score` (integer): 21 - `severity` (string): Spitzer 2006 cut points: minimal (0-4, below the mild cut of 5), mild (5-9), moderate (10-14), severe (15-21). Not extra named classes. - `case_finding_ge_10` (boolean): true iff score ≥ 10 (Spitzer 2006: GAD-7 score ≥10 sensitivity 89% and specificity 82% for GAD). Not a GAD diagnosis. - `components` (array): Per-item caller-assigned points - `citation` (object): Spitzer et al. Arch Intern Med 2006 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "value": 0, "factor": "nervous", "points": 0, "present": true }, { "value": 0, "factor": "control_worry", "points": 0, "present": true }, { "value": 0, "factor": "worry_too_much", "points": 0, "present": true }, { "value": 0, "factor": "relaxing", "points": 0, "present": true }, { "value": 0, "factor": "restless", "points": 0, "present": true }, { "value": 0, "factor": "irritable", "points": 0, "present": true }, { "value": 0, "factor": "afraid", "points": 0, "present": true } ], "severity": "minimal", "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": "Spitzer RL, Kroenke K, Williams JBW, Löwe B", "doi": "10.1001/archinte.166.10.1092", "id": "spitzer-2006", "pmid": "16717171", "source": "Arch Intern Med. 2006;166(10):1092-1097", "title": "A brief measure for assessing generalized anxiety disorder: the GAD-7" }, "formula": "gad_7", "formula_expression": "GAD-7 = nervous + control_worry + worry_too_much + relaxing + restless + irritable + afraid; each caller-assigned 0-3; max 21", "max_score": 21, "score": 0, "case_finding_ge_10": false } ``` ## Errors - HTTP 400 `invalid_gad7_item`: each GAD-7 item must be an integer from 0 to 3 (Spitzer 2006: 0 not at all, 1 several days, 2 more than half the days, 3 nearly every day). 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 - [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. - [CAGE](https://magentlab.com/docs/cage) — Sum the four Ewing 1984 CAGE items and return whether two or more answers are affirmative. - [AUDIT-C](https://magentlab.com/docs/audit-c) — Sum three caller-assigned Bush 1998 AUDIT-C integers (0-4) and return this paper's ≥3 and ≥4 screens. ## 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. - 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.