{ "openapi": "3.0.1", "info": { "title": "Website Change Monitor – Page Diff, Price & Keyword Alerts", "description": "Monitor web pages for changes on a schedule: line-by-line diff, change %, CSS-selector targeting, price-drop and keyword alerts, webhook to Slack/Discord/n8n. HTTP only, robots.txt respected. Unchanged checks cost $0.0005.", "version": "0.1", "x-build-id": "vzR3i0hczqCMRoPQw" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/gazidev~website-change-monitor/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-gazidev-website-change-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/gazidev~website-change-monitor/runs": { "post": { "operationId": "runs-sync-gazidev-website-change-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/gazidev~website-change-monitor/run-sync": { "post": { "operationId": "run-sync-gazidev-website-change-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "pages": { "title": "Pages to monitor", "type": "array", "description": "List of pages. Each item is a URL string or an object: `{\"url\": \"https://site.com/pricing\", \"selector\": \"main\", \"label\": \"Competitor pricing\", \"ignoreSelectors\": [\".banner\"], \"watchFor\": [\"sold out\"], \"priceSelector\": \".price\", \"trackPrice\": true}`. Per-page settings override the global ones below." }, "urls": { "title": "Or: plain list of URLs", "type": "array", "description": "Simple alternative to 'Pages to monitor': one URL per line, using the global settings below.", "items": { "type": "string" } }, "selector": { "title": "CSS selector (global)", "type": "string", "description": "Only watch this part of the page, e.g. `main`, `#pricing`, `.product-info`, `table.results`. Empty = whole page body. Navigation, ads and cookie banners are always dropped." }, "ignoreSelectors": { "title": "Ignore these elements", "type": "array", "description": "CSS selectors removed before comparing, e.g. `.related-posts`, `#footer`, `.timestamp`.", "items": { "type": "string" } }, "watchFor": { "title": "Keywords to watch", "type": "array", "description": "Case-insensitive words or phrases. The output lists how often each appears, and which keywords appeared or disappeared since the last run (e.g. `sold out`, `in stock`, `deadline`, `tender`).", "items": { "type": "string" } }, "trackPrice": { "title": "Track price", "type": "boolean", "description": "Extract a price (from product meta tags / JSON-LD, otherwise the first amount with a currency in the watched text) and report old price, new price and % change.", "default": false }, "priceSelector": { "title": "Price CSS selector", "type": "string", "description": "Optional, more exact than auto-detection: the element that holds the price, e.g. `.price-current`. Turns price tracking on." }, "notifyOn": { "title": "Report a change when", "enum": [ "anyChange", "keywordsOrPrice" ], "type": "string", "description": "Controls which changes count as a 'changed' row, the change-detected event and the webhook.", "default": "anyChange" }, "minChangePercent": { "title": "Minimum change (% of lines)", "minimum": 0, "maximum": 100, "type": "integer", "description": "Ignore tiny edits: a change touching fewer lines than this % of the page is a 'minor-change' (not reported, not charged as a change). Price and keyword changes are always reported.", "default": 0 }, "ignoreDynamicContent": { "title": "Ignore clocks, 'x minutes ago' and random tokens", "type": "boolean", "description": "Masks times of day, relative times and long random tokens (nonces, session IDs) so they do not trigger false alerts.", "default": true }, "ignoreDates": { "title": "Also ignore dates", "type": "boolean", "description": "Mask calendar dates (2026-10-27, 27 October 2026, 10/27/2026). Leave off when a new date is the change you want to see.", "default": false }, "ignorePatterns": { "title": "Ignore text matching (regex)", "type": "array", "description": "Regular expressions removed from the text before comparing, e.g. `Visitors today: \\d+`.", "items": { "type": "string" } }, "webhookUrl": { "title": "Webhook URL", "type": "string", "description": "POSTed once per run when something changed, with a JSON list of changes. The payload has `text` and `content` fields, so Slack and Discord incoming webhooks show it directly; n8n, Make and Zapier get the full JSON." }, "webhookOnEveryRun": { "title": "Call the webhook even when nothing changed", "type": "boolean", "description": "Useful as a heartbeat.", "default": false }, "includeUnchanged": { "title": "Output unchanged pages too", "type": "boolean", "description": "On (default): one row per checked page, so every run shows its result (filter on `changed` / `status`). Turn off for a pure change feed: only new baselines, changes and errors are written.", "default": true }, "includeSnapshotText": { "title": "Include the full page text", "type": "boolean", "description": "Adds the normalised text of the watched part (up to 400k characters) to every row.", "default": false }, "stateKey": { "title": "Monitor name (state key)", "type": "string", "description": "Snapshots are kept in your named key-value store `website-change-monitor-`, so every scheduled run compares with the previous one. Use a different name per task to keep monitors apart, or a new name to start fresh.", "default": "default" }, "maxItems": { "title": "Max pages per run", "minimum": 1, "maximum": 10000, "type": "integer", "description": "Maximum number of pages checked in one run. Extra pages are skipped.", "default": 100 }, "maxConcurrency": { "title": "Websites checked in parallel", "minimum": 1, "maximum": 20, "type": "integer", "description": "Pages on the same website are always fetched one at a time with at least 1 s between requests (or the robots.txt crawl-delay).", "default": 5 }, "requestTimeoutSecs": { "title": "Request timeout (seconds)", "minimum": 5, "maximum": 120, "type": "integer", "description": "Per request. Slow servers are retried up to 2 times.", "default": 30 }, "proxyConfiguration": { "title": "Proxy", "type": "object", "description": "Not needed for most sites. Datacenter proxy only helps when a site rate-limits by IP.", "default": { "useApifyProxy": false } } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } } } } } } } } }