# Verid

> Verid is a developer-first web change-detection API. Monitor any URL and receive structured webhook notifications when content changes.

Append `.md` to any guide or curated marketing page listed below to get the raw Markdown source. Blog posts and use cases are served as HTML only. The technical docs (REST API, SDK, predicates, extraction, webhooks) live at https://docs.verid.dev - see https://docs.verid.dev/llms.txt.

## Marketing

- [Verid (home)](https://verid.dev/index.md): Overview, fetching strategy, and tiers at a glance.
- [Pricing](https://verid.dev/pricing.md): Free, Lite ($9), Starter ($19), Pro ($49), Scale ($149). Limits per plan.
- [About](https://verid.dev/about.md): Why we built Verid and what we focus on.
- [Contact](https://verid.dev/contact.md): Support, security disclosure, partnerships.
- [Product: Change Detection API](https://verid.dev/products/change-detection-api.md): Scheduled extract, diff and signed webhook on any URL. Predicates, retries, run history.
- [Product: Visual Monitoring](https://verid.dev/products/visual-monitoring.md): Region-scoped screenshot diffs on live pages, with a pixel threshold and proof images.
- [Product: SERP Tracking API](https://verid.dev/products/serp-tracking-api.md): Monitor a search result URL, extract rank and SERP features, alert on movement.
- [Product: Competitor Monitoring API](https://verid.dev/products/competitor-monitoring-api.md): Competitor pricing, positioning and launch changes as JSON webhook events.
- [Features overview](https://verid.dev/features.md): Change detection, extraction, notifications, API.
- [Feature: Change detection](https://verid.dev/features/change-detection.md): Predicate-based diffing - fire only on meaningful changes.
- [Feature: Extraction methods](https://verid.dev/features/extractors.md): CSS, XPath, JSONPath, regex, full-page hashing, LLM prompts.
- [Feature: Notifications](https://verid.dev/features/notifications.md): Webhooks (HMAC-signed), Slack, Discord, email. Retries + replay.
- [Feature: REST API + SDK](https://verid.dev/features/api.md): OpenAPI 3.1 spec, @verid.dev/sdk Node.js client.

## Blog

- [How to Feed AI Agents Fresh Web Data Without Re-Scraping Everything](https://verid.dev/blog/how-to-feed-ai-agents-fresh-web-data-without-re-scraping-everything): How AI agents and RAG systems stay fresh without re-scraping entire sites: change detection, webhooks, and incremental updates explained.
- [Firecrawl vs Verid: A Scraping API and a Monitoring Loop Are Not the Same Thing](https://verid.dev/blog/firecrawl-vs-verid-a-scraping-api-and-a-monitoring-loop-are-not-the-same-thing): Firecrawl scrapes and now checks pages on a schedule. Verid is built only for monitoring. Here's the real architectural difference.
- [API Contract Monitoring: How to Catch Breaking Changes Before They Hit Production](https://verid.dev/blog/api-contract-monitoring-how-to-catch-breaking-changes-before-they-hit-production): Learn how API contract monitoring catches breaking changes before production. Schema drift, field-level diff, and continuous JSON API monitoring explained.
- [How Ecommerce Teams Use Structured Price Monitoring to Win on Margins](https://verid.dev/blog/how-ecommerce-teams-use-structured-price-monitoring-to-win-on-margins): How ecommerce teams use structured price monitoring to protect margins, automate competitor alerts, and make faster repricing decisions.
- [How to Set Up a Dead Letter Queue for Failed Webhook Deliveries](https://verid.dev/blog/how-to-set-up-a-dead-letter-queue-for-failed-webhook-deliveries): Learn how dead letter queues catch failed webhook deliveries: retry design, backoff, replay, and monitoring, with real config examples.
- [How to Track When a Competitor Switches Their Tech Stack (Without Checking Manually Every Week)](https://verid.dev/blog/how-to-track-when-a-competitor-switches-their-tech-stack-without-checking-manually-every-week): Stop manually re-checking BuiltWith. Learn how to get alerted the moment a competitor's site changes its tech stack, with a real workflow.
- [Monitor AWS, Stripe, and GitHub Status Pages and Route Incidents to Slack Automatically](https://verid.dev/blog/monitor-aws-stripe-and-github-status-pages-and-route-incidents-to-slack-automatically): Stop checking status pages by hand. Route AWS, Stripe, and GitHub incidents straight to Slack with field-level monitors that only fire when it matters.
- [How to Detect When a Competitor Changes Their Pricing Page Automatically](https://verid.dev/blog/how-to-detect-when-a-competitor-changes-their-pricing-page-automatically): Learn how to detect competitor pricing page changes automatically using field level extraction, predicates, and webhook alerts with Verid.
- [How to Get Automatic Back-in-Stock Alerts for Any Product Page](https://verid.dev/blog/how-to-get-automatic-back-in-stock-alerts-for-any-product-page): Stop refreshing product pages. Build automatic back-in-stock alerts with webhooks, Slack, or email using a monitoring API. Free plan, no credit card.
- [How to Monitor SaaS Competitor Pricing Changes at Scale](https://verid.dev/blog/how-to-monitor-saas-competitor-pricing-changes-at-scale): Learn how to track SaaS competitor pricing pages automatically with predicate-based alerts, not screenshots. Includes working API examples.
- [How to Automate Regulatory Compliance Monitoring for Legal Teams](https://verid.dev/blog/how-to-automate-regulatory-compliance-monitoring-for-legal-teams): Learn how legal teams automate regulatory compliance monitoring with page-level tracking, structured alerts, and signed webhooks, plus a working setup.
- [Best Tools to Monitor Government Websites for Policy Changes in 2026](https://verid.dev/blog/best-tools-to-monitor-government-websites-for-policy-changes-in-2026): Compare free, no-code, developer, and enterprise tools for tracking government website and policy changes, plus how to build alerts that skip the noise.
- [How to Build an Amazon Price Tracker Without an Amazon API Key](https://verid.dev/blog/how-to-build-an-amazon-price-tracker-without-an-amazon-api-key): Track Amazon prices without Amazon's API. Verid extracts price and stock, then fires a webhook the moment your threshold hits.
- [How to Send Website Change Alerts to n8n, Zapier, and Make](https://verid.dev/blog/how-to-send-website-change-alerts-to-n8n-zapier-and-make): Learn how to send website change alerts into n8n, Zapier, or Make using Verid's webhook API, with real config, code, and setup steps.
- [How to Use AI Extraction to Monitor Pages That Break CSS Selectors](https://verid.dev/blog/how-to-use-ai-extraction-to-monitor-pages-that-break-css-selectors): Selectors break when sites redesign. See how AI extraction keeps monitors alive, with real Verid configs, code, and a selector vs LLM comparison.
- [Monitor Crypto Prices via API and Fire Webhook Alerts on Any Percent Move](https://verid.dev/blog/monitor-crypto-prices-via-api-and-fire-webhook-alerts-on-any-percent-move): Monitor BTC, ETH, or any coin via API. Set percent-move predicates and fire signed webhook alerts to your app, Slack, or Discord. Zero infrastructure.
- [Automated Web Monitoring for Research Teams: Journals, Grants, and Policy Pages](https://verid.dev/blog/automated-web-monitoring-for-research-teams-journals-grants-and-policy-pages): Set up automated monitoring for academic journals, NSF/NIH grants, and government policy pages. Developer guide with real Verid API examples.
- [How to Monitor Multiple Competitor Pages at Scale Without a Scraper](https://verid.dev/blog/how-to-monitor-multiple-competitor-pages-at-scale-without-a-scraper): Learn how to track 50+ competitor pages using a change detection API, smart predicates, and webhooks. No scraping infrastructure required.
- [Website Monitoring vs Uptime Monitoring: What's the Difference?](https://verid.dev/blog/website-monitoring-vs-uptime-monitoring-whats-the-difference): Uptime monitoring checks if a site is up. Website monitoring checks what it says. Learn the difference and when you need both.
- [HMAC Webhook Verification: How to Validate Signed Webhook Payloads](https://verid.dev/blog/hmac-webhook-verification-how-to-validate-signed-webhook-payloads): Learn how HMAC webhook signature verification works, why it matters, and how to implement it in Node.js, Python, Go, and more - with replay attack protection.
- [Back-in-Stock Email Alerts Without Building a Custom System](https://verid.dev/blog/back-in-stock-email-alerts-without-building-a-custom-system): Set up a back-in-stock email notification system in minutes - no custom code, no scrapers. Monitor any page and alert customers automatically with Verid.
- [How to Monitor Job Listings for Keywords and Get Instant Alerts](https://verid.dev/blog/how-to-monitor-job-listings-for-keywords-and-get-instant-alerts): Learn how to track new job postings automatically using Verid. Set keyword filters, configure smart alerts, and get notified the moment a match appears.
- [Web Scraping Legality in 2026: What Every Developer Should Know Before Writing a Single Line](https://verid.dev/blog/web-scraping-legality-in-2026-what-every-developer-should-know-before-writing-a-single-line): Is web scraping legal in 2026? Learn what the law actually says about public data, CFAA, GDPR, robots.txt, and how to build compliant data workflows.
- [Why Your SEO Rankings Drop Without Warning (And How to Stop It)](https://verid.dev/blog/why-your-seo-rankings-drop-without-warning-and-how-to-stop-it): Learn how to detect silent title tag, canonical, robots.txt, and structured data changes automatically using field-level monitoring and webhook alerts.
- [How to Monitor GitHub Releases and Get Instant Slack or Discord Alerts](https://verid.dev/blog/how-to-monitor-github-releases-and-get-instant-slack-or-discord-alerts): If you maintain or depend on open-source projects, you've almost certainly been burned by a release you missed. A breaking change ships in a framework you depend on, your CI starts failing on Monday morning, and you find out the fix landed three days ago. The problem isn't that the release happened quietly: it's that you had no reliable way to catch it.

This guide covers how to monitor any GitHub repository for new releases and route a structured alert to Slack or Discord the moment a stable ve
- [API Monitoring vs Scraping: Why the Loop Is the Product](https://verid.dev/blog/api-monitoring-vs-scraping-why-the-loop-is-the-product): Discover why API monitoring outperforms scraping. Learn how Verid.dev simplifies change detection with continuous monitoring and webhooks.
- [Stop Monitoring Noise: How Predicate-Based Alerting Saves Your Sanity](https://verid.dev/blog/stop-monitoring-noise-how-predicate-based-alerting-saves-your-sanity): Learn how predicate-based alerting filters out monitoring noise so you only get notified when a real condition you care about is actually true.
- [The Hidden Cost of DIY Website Monitoring: A Build vs Buy Cost Analysis](https://verid.dev/blog/the-hidden-cost-of-diy-website-monitoring-a-build-vs-buy-cost-analysis): Compare DIY website monitoring with managed platforms. Learn the real costs of maintenance, scaling, alerts, and long term ownership.
- [XPath Tutorial: A Practical Guide for Web Scraping and Monitoring](https://verid.dev/blog/xpath-tutorial-a-practical-guide-for-web-scraping-and-monitoring): Learn XPath syntax, axes, functions, and real scraping examples. Discover how to use XPath for website monitoring with Verid's change detection API.
- [Best Competitor Monitoring Tools for SaaS Companies in 2026](https://verid.dev/blog/best-competitor-monitoring-tools-for-saas-companies-in-2026): Compare 9 competitor monitoring tools for SaaS teams in 2026, from five-figure CI suites to API-based pricing page monitors like Verid.
- [Track npm Package Updates Automatically](https://verid.dev/blog/track-npm-package-updates-automatically): Stop polling npm manually. Learn how to monitor npm packages for new versions and fire webhook notifications the moment a release lands. No cron jobs required.
- [Wachete Alternative for Developers: Get Structured Data, Not Raw Diffs](https://verid.dev/blog/wachete-alternative-for-developers-get-structured-data-not-raw-diffs): Wachete shows you raw diffs. Verid extracts the exact field you care about and fires a webhook only when your predicate is true. No noise, no glue code.
- [Website Change Alerts in Slack: A Developer's Setup Guide](https://verid.dev/blog/website-change-alerts-slack): Learn how to send structured Slack alerts when a specific website field changes. Step-by-step guide using the Verid API with real code examples.
- [Distill Alternatives for Teams That Need an API Instead of a Browser Extension](https://verid.dev/blog/distill-alternatives-for-teams-that-need-an-api-instead-of-a-browser-extension): Distill works fine as a browser extension. But when your team needs an API, predicates, webhooks, and zero glue code, here's what to use instead.
- [What Is Web Change Detection? (And Why Monitoring Tools Get It Wrong)](https://verid.dev/blog/what-is-web-change-detection-and-why-monitoring-tools-get-it-wrong): Most monitoring tools just watch for byte changes. Learn what web change detection really is, why false positives happen, and how to fix it.
- [How to Monitor PyPI Packages for Security Updates and New Releases](https://verid.dev/blog/how-to-monitor-pypi-packages-for-security-updates-and-new-releases): Learn how to monitor PyPI packages for CVEs, security advisories, and new releases using JSONPath, webhooks, and automated alerts with Verid.
- [Hulu Black Friday 2026: Price History, What to Expect, and How to Catch It Live](https://verid.dev/blog/hulu-black-friday-2026-price-history-what-to-expect-and-how-to-catch-it-live): See what Hulu's Black Friday deals have cost in past years, what to expect in 2026, and how to get notified the second the discount goes live.
- [How to Monitor a Website for Keyword Appearances (Regex Monitoring)](https://verid.dev/blog/how-to-monitor-a-website-for-keyword-appearances-regex-monitoring): Learn how to monitor any webpage for keyword appearances using regex extraction and predicate-driven alerts. No false positives, no screenshot noise.
- [Web Scraping vs Web Change Detection: What Developers Need to Know](https://verid.dev/blog/web-scraping-vs-web-change-detection-what-developers-need-to-know): Web scraping pulls data on demand. Web change detection watches for when specific values shift. Learn which solves your problem and when to use both.
- [JSONPath Expressions: The Complete Developer Reference](https://verid.dev/blog/jsonpath-expressions-the-complete-developer-reference): Learn JSONPath syntax, operators, filters, and wildcards with real API examples. Master JSON querying and use it to monitor live data with Verid.
- [Competitive Intelligence Automation: 7 Developer Workflows You Can Ship Today](https://verid.dev/blog/competitive-intelligence-automation-7-developer-workflows-you-can-ship-today): Stop checking competitor sites manually. Here are 7 real competitive intelligence workflows you can automate today using Verid's change detection API.
- [Browse AI Alternative: When You Need Webhooks, Not Just Scraping](https://verid.dev/blog/browse-ai-alternative-when-you-need-webhooks-not-just-scraping): Need webhooks, predicates, and structured diffs, not just scraped data? See why developers switch from Browse AI to Verid for real-time change detection.
- [How to Build a Price Alert System Without Writing a Scraper](https://verid.dev/blog/how-to-build-a-price-alert-system-without-writing-a-scraper): Build a production-ready price alert system without writing or maintaining a scraper. One API call, structured fields, and predicate-driven delivery.
- [Webhook Best Practices: A Developer's Production Guide](https://verid.dev/blog/webhook-best-practices-a-developers-production-guide): Learn production-ready webhook best practices: HMAC signature verification, async processing, idempotency, retry logic, and monitoring for reliable delivery.
- [Google Alerts Alternative for Developers: Structured Monitoring with Webhooks](https://verid.dev/blog/google-alerts-alternative-for-developers-structured-monitoring-with-webhooks): Google Alerts has no API, no webhooks, and no structured output. Here's what developers use instead to monitor URLs programmatically.
- [How to Monitor a JSON API for Changes and Trigger Webhooks Automatically](https://verid.dev/blog/how-to-monitor-a-json-api-for-changes-and-trigger-webhooks-automatically): Learn how to detect JSON API field changes, define smart predicates, and fire signed webhooks automatically without writing a single polling loop.
- [XPath vs CSS Selector for Web Scraping: When to Use Each](https://verid.dev/blog/xpath-vs-css-selector-for-web-scraping-when-to-use-each):  XPath navigates the full DOM tree. CSS selectors are faster and simpler. Here is exactly when to use each for web scraping - with real config examples.
- [Hexowatch Alternative for Developers: Best Website Monitoring Tools in 2026](https://verid.dev/blog/hexowatch-alternative-for-developers-best-website-monitoring-tools-in-2026): Looking for a Hexowatch alternative with a real API? Compare the best developer-focused website monitoring and change detection tools in 2026.
- [Predicate-Based Alerting: Stop Getting Spammed by Your Monitoring Tool](https://verid.dev/blog/predicate-based-alerting-stop-monitoring-spam): Alert fatigue is a monitoring tool bug. Verid's predicate system fires only when a change meets a condition — price drop, regex match, or threshold crossed.
- [Monitor Competitor Pricing Pages with Webhooks (Step-by-Step)](https://verid.dev/blog/monitor-competitor-pricing-pages-webhooks): Set up a webhook receiver that fires on real price changes: verified payload, currency parsing, noise filtering, and routing to Slack or a repricing engine.
- [Google Alerts Alternatives: 7 Tools for Monitoring Things Google Alerts Can't](https://verid.dev/blog/google-alerts-alternatives): Google Alerts misses changes to specific pages, prices & JS content. 7 Google Alerts alternatives that actually cover those gaps.
- [changedetection.io vs Verid: Which Website Monitoring Tool Is Right for You?](https://verid.dev/blog/changedetection-io-vs-verid-which-website-monitoring-tool-is-right-for-you): changedetection.io vs Verid compared. See which website change detection tool fits your stack - screenshot alerts or structured API-driven monitoring.
- [Best Competitor Pricing Tools in 2026: Compared for Developers and Growth Teams](https://verid.dev/blog/best-competitor-pricing-tools): Compared: the best competitor price tracking software and tools for 2026 — features, pricing, and the API-first pick for developers.
- [Competitor Price Intelligence: Build a Real System](https://verid.dev/blog/competitor-price-intelligence-system): Build a competitor price intelligence system without gluing 5 tools together. Learn the full stack — scraping, diffing, alerting, storage.
- [SERP Rank Tracking vs. Location Monitoring: What You're Missing](https://verid.dev/blog/serp-rank-tracking-vs-location-monitoring-what-youre-missing): Your rank tracker says position 3. Your clicks dropped 22%. Here's why rank tracking and SERP location monitoring answer completely different questions.
- [Best Price Monitoring Tools for Ecommerce in 2026](https://verid.dev/blog/best-price-monitoring-tools-for-ecommerce-in-2026): Compare the 7 best price monitoring tools for ecommerce in 2026 — Verid, Visualping, Prisync, Price2Spy, changedetection.io, Browse AI, and Wiser — with honest pros, cons, and pricing.
- [Walmart Price Tracker: Monitor Price Changes and Get Instant Alerts](https://verid.dev/blog/walmart-price-tracker-monitor-price-changes-and-get-instant-alerts): Track Walmart product prices automatically. Get instant alerts when prices drop using Verid's web change detection API - no scraping infrastructure needed.
- [Visualping Alternative? Verid vs Visualping Compared](https://verid.dev/blog/visualping-alternative-for-developers): Visualping vs Verid: an honest comparison of two website change monitors - features, alerting logic, webhooks, and pricing.
- [How to Track SERP Location Changes: An Automated Monitoring Guide](https://verid.dev/blog/how-to-track-serp-location-changes-an-automated-monitoring-guide): Learn why Google rankings differ by location and how to monitor SERP location changes automatically using Verid's change detection API.
- [Domain Monitoring: The Developer's Complete Guide](https://verid.dev/blog/domain-monitoring-the-developers-complete-guide): Learn what domain monitoring is, why it matters, and how to set up structured, predicate-driven alerts using Verid's developer-first API - no glue code required.
- [How to Build a Website Change Detector (Node.js Guide + When to Buy)](https://verid.dev/blog/how-to-build-a-website-change-detector-node-js-guide-when-to-buy): Build a website change detector in Node.js from scratch — then learn exactly where DIY breaks down and when a managed API is the smarter call.
- [SEO Monitoring and Competitor Intelligence Using Verid.dev](https://verid.dev/blog/seo-monitoring-and-competitor-intelligence-using-verid-dev): Track SERP shifts, pricing, and metadata in real time. Learn how Verid.dev automates SEO monitoring and competitor intelligence with structured alerts.
- [How to Monitor Website Changes (And Get Notified Automatically)](https://verid.dev/blog/how-to-monitor-website-changes): Five ways to monitor a website for changes and get notified instantly — from free tools to developer-grade signed webhooks. Compared for 2026.
- [Best Wayback Machine Alternatives in 2026](https://verid.dev/blog/best-wayback-machine-alternatives): Looking for Wayback Machine alternatives? Compare 10 tools for web archiving, change detection, visual monitoring, and automated alerts. Find the right fit.
- [How to Set Up Google Alerts (+ What They Don't Catch)](https://verid.dev/blog/how-to-set-up-google-alerts): Set up, manage, and fix Google Alerts — plus what Google Alerts can't monitor on a web page, and the tool to use instead.
- [Get Notified the Instant Items Are Back in Stock](https://verid.dev/blog/get-notified-the-instant-items-are-back-in-stock): Stop missing restocks. Learn how to monitor any product page for availability changes and get instant webhook, Discord, or email alerts the second items return.
- [Competitor Price Tracking: Tools, Methods & Strategy (2026)](https://verid.dev/blog/competitor-price-tracking): Compare the best competitor price tracking tools—from free monitors to enterprise platforms. Learn how to track competitor prices without a six-figure budget.
- [What SERP analysis actually covers in 2026](https://verid.dev/blog/what-serp-analysis-actually-covers-in-2026): SERP analysis tools compared: rank trackers, change detection, AI Overview support, pricing, and features — find the right fit for 2026.

## Use cases

- [How to Monitor Airline Prices and Get Alerts When They Drop](https://verid.dev/use-cases/airline-and-hotel-fare-drops): Learn why airfare changes so often and how to monitor airline prices automatically, with a step by step setup for custom fare drop alerts.
- [How to Automatically Track Scholarship and Grant Deadlines with Verid (No Coding Needed)](https://verid.dev/use-cases/scholarship-and-grant-deadlines): Stop refreshing scholarship pages by hand. See how Verid automatically tracks deadlines and emails you the moment one changes.
- [Academic Journal and Paper Update Alerts](https://verid.dev/use-cases/academic-journal-and-paper-update-alerts): Get instant alerts when new papers publish in academic journals or on arXiv. Set up free automated monitoring with Verid, no coding required.
- [How to Track Competitor Tech Stack Changes Automatically](https://verid.dev/use-cases/competitor-tech-stack-changes): Learn how to detect when competitors change their tech stack, update their tools, or ship new features using Verid's web change detection API.
- [How to Monitor Appointment Slot Availability and Never Miss a Booking Again](https://verid.dev/use-cases/appointment-and-calendar-slot-availability): Stop manually refreshing booking pages. Use Verid to monitor appointment slot availability and get instant alerts when a slot opens up.
- [How to Monitor JSON API Fields and Get Alerts When Data Changes](https://verid.dev/use-cases/json-api-field-monitoring): Learn how to track specific fields in any JSON API response and receive instant alerts when values change. Step-by-step guide using Verid.
- [How to Monitor Job Listings for Keywords and Get Instant Alerts](https://verid.dev/use-cases/job-listings-for-keywords): Learn how to set up automated job listing alerts with Verid. Get notified the moment new jobs matching your keywords appear - no coding required.
- [How to Get Automatic PyPI Package Update Alerts](https://verid.dev/use-cases/pypi-package-updates): Get instant alerts when any PyPI package releases a new version. Set up automated Python package update notifications with Verid in minutes.
- [How to Detect SEO Title and Meta Description Drift Using Verid](https://verid.dev/use-cases/seo-title-and-meta-description-drift): Learn how to detect SEO title and meta description drift automatically using Verid. Monitor metadata changes across your site and get instant alerts before rankings drop.
- [How to Monitor Terms of Service and Privacy Policy Changes Automatically](https://verid.dev/use-cases/terms-of-service-and-privacy-policy-drift): Learn how to monitor Terms of Service and Privacy Policy changes automatically using Verid. Get instant alerts before policy updates affect your business.
- [How to Track NPM Package Version Changes Automatically](https://verid.dev/use-cases/npm-package-version-tracking): Learn how to monitor npm package versions automatically and get email alerts the moment a new version is published. No code required to get started.
- [How to Set Up Automated Crypto Price Alerts Using CoinGecko and Verid](https://verid.dev/use-cases/crypto-price-alerts): Learn how to set up automated crypto price alerts using CoinGecko and Verid. Get Bitcoin and Ethereum notifications by email, Slack, or webhook.
- [How to Detect WHOIS and Domain Ownership Changes Automatically](https://verid.dev/use-cases/whois-and-domain-ownership-changes): Learn how to monitor WHOIS records and detect domain ownership changes automatically using Verid. Set up alerts for registrar swaps, expiration updates, and nameserver changes.
- [How to Monitor SaaS Competitor Pricing Changes Automatically](https://verid.dev/use-cases/saas-competitor-monitoring): Learn how to monitor SaaS competitor pricing pages automatically with Verid. Get instant alerts when plans, prices, or features change - no manual checks needed.
- [How to Monitor Regulatory Filings and Policy Pages Automatically](https://verid.dev/use-cases/regulatory-filings-and-policy-pages): Learn how to automatically track regulatory filings, policy updates, and government pages with Verid.dev - get email alerts the moment anything changes.
- [Get Instant RSS Feed New Item Alerts Without Writing a Scraper](https://verid.dev/use-cases/rss-feed-new-items): Learn how to monitor any RSS feed and get instant alerts when new items are published. Set up RSS feed notifications in minutes with Verid.
- [How to Detect Status Page Incidents Automatically](https://verid.dev/use-cases/status-page-incident-detection): Learn how to monitor AWS, Stripe, and GitHub status pages for incidents automatically using Verid's change detection API. Get instant alerts via email or webhook.

- [How to Monitor GitHub Releases and Get Instant Update Alerts](https://verid.dev/use-cases/github-release-monitoring): Track any GitHub repository for new releases using Verid. Get email, webhook, or Slack alerts the moment a new version ships. Free to start.
- [How to Track Mortgage and Loan Rate Changes Automatically Using Verid](https://verid.dev/use-cases/mortgage-and-loan-rate-tracking): Learn how to track mortgage and loan rate changes automatically using Verid's web change detection API. Set up alerts via webhook, email, or Slack in minutes.
- [How to Monitor an Etsy Shop for New Listings (No Scraping Skills Required)](https://verid.dev/use-cases/etsy-shop-new-listings): Monitor any Etsy shop for new listings and get instant alerts by email, Slack, or webhook. Set up in minutes using Verid's no-code dashboard or API.
- [How to Detect New URLs in Sitemap.xml Automatically (Without Writing a Scraper)](https://verid.dev/use-cases/sitemap-new-urls): Learn how to monitor sitemap.xml for new URLs using Verid. Get instant email or webhook alerts when competitors or websites publish new pages.
- [How to Monitor Shopify Product Prices and Stock Automatically](https://verid.dev/use-cases/shopify-product-stock-and-price): Learn how to track Shopify product prices and stock availability automatically using Verid. Get instant alerts when prices drop or items restock.
- [How to Get Restock Alerts for Out-of-Stock Products Using Verid](https://verid.dev/use-cases/restock-alerts): Learn how to use Verid to monitor any product page and get an email the moment it comes back in stock. Step-by-step guide for beginners.
- [How to Monitor Currency Exchange Rates and Get FX Rate Alerts with Verid](https://verid.dev/use-cases/currency-fx-rate-monitoring): Track FX rate changes on any currency pair and receive instant email or webhook alerts when rates move. Set up in minutes with Verid, no code required.
- [How to Track Competitor Ad and Landing Page Copy Changes (And Get Alerted the Moment They Update)](https://verid.dev/use-cases/competitor-ad-and-landing-copy-changes): Learn how to track competitor ad landing pages, headlines, pricing, and CTAs automatically using Verid's web change detection API. No coding required to start.
- [Track Google SERP Location Changes Automatically with Verid](https://verid.dev/use-cases/serp-monitoring): Learn how to monitor Google search results, track competitor rankings, and detect SERP feature changes automatically using Verid's change detection API.
- [How to Set Up Automated Government Contract and Tender Alerts (No Coding Required)](https://verid.dev/use-cases/government-contract-and-tender-postings): Never miss a government contract again. Learn how to set up automated government tender alerts using Verid to monitor procurement portals 24/7.
- [Real-Time Stock Price Drop Alerts Using Verid Change Detection API](https://verid.dev/use-cases/stock-price-drop-alerts): Learn how to build stock price drop alerts using Verid's Change Detection API. Monitor stock prices, set thresholds, and get notified automatically.
- [Competitor Price Tracking: The Complete Guide to Automating It With an API](https://verid.dev/use-cases/competitor-price-tracking): Learn how to automate competitor price tracking with Verid's API. Step-by-step dashboard, API, and SDK setup. Free plan, no credit card needed.

## Guides

- [What a Verid Monitor Is Made Of](https://verid.dev/guides/anatomy-of-a-monitor.md): Every monitor is five decisions: where to look, how often, what to capture, when it counts as a change, and who to tell. Learn those five and the rest of Verid is configuration.
- [How to Use CSS Selector Extraction](https://verid.dev/guides/css-selector.md): Target HTML elements by class, ID, or attribute and pull out their text. The fastest method for well-structured pages.
- [How to Use XPath Extraction](https://verid.dev/guides/xpath.md): Navigate the full document tree with XPath expressions. More powerful than CSS selectors for complex conditions, attribute access, and partial text matching.
- [How to Use JSONPath Extraction](https://verid.dev/guides/jsonpath.md): Query JSON API responses and embedded JSON data using JSONPath expressions - the JSON equivalent of XPath.
- [How to Use Regex Extraction](https://verid.dev/guides/regex.md): Run regular expressions against raw page source to extract versioned strings, counts, prices, or any pattern that appears in the HTML or text.
- [How to Use Full Page Hash](https://verid.dev/guides/full-page-hash.md): Detect any meaningful change on a page without configuring selectors. Verid normalizes the HTML and computes a hash - if anything changes, you hear about it.
- [How to Use AI (LLM) Extraction](https://verid.dev/guides/llm-ai-extraction.md): Describe what you want to extract in plain English and let the AI figure out the rest. Works on any page, including JavaScript-heavy and unstructured content.

## Optional

- [Technical docs](https://docs.verid.dev/llms.txt)
- [Combined technical docs](https://docs.verid.dev/docs.md)
- [OpenAPI 3.1 spec](https://api.verid.dev/api/openapi.json)