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Verid
$9Starting price
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About Verid
Verid is an API-first web change-monitoring service designed for developers who need to track changes on any webpage without building custom scrapers. It fetches pages using static, headless, or proxy methods and extracts structured fields using six different extraction techniques, including LLM-powered AI extraction that locates fields described in plain English even when selectors break. The service only notifies users when predicate-driven rules fire, delivering alerts via HMAC-signed webhooks, Slack, Discord, or email. It provides per-field diffs, durable state tracking, and reliable delivery to ensure monitoring remains quiet and resilient. By combining fetching, extraction, and alerting into a single service, Verid eliminates the need for developers to maintain separate scraping and alert logic, making it ideal for tracking price drops, stock restocks, dependency updates, or API drift. The platform is built to handle dynamic content and changing page structures while minimizing false positives and unnecessary noise in notifications.
Key features
- API-first web change monitoring
- Six extraction methods including LLM-powered AI extraction
- Predicate-driven rule-based alerts
- HMAC-signed webhooks, Slack, Discord, and email notifications
- Per-field diffs and durable state tracking
- Static, headless, and proxy fetching options
- Reliable delivery with minimal false positives
- Plain English field description for AI extraction
Use cases
- Monitoring price drops or stock availability on e-commerce sites
- Tracking dependency or version updates in software documentation
- Detecting API drift or changes in third-party service responses
Pros
- Eliminates need to maintain custom scrapers or alert logic by combining fetching, extraction, and alerting into a single API-first service
- Supports six extraction methods including LLM-powered AI extraction for locating fields described in plain English when selectors fail
- Delivers alerts only when predicate-driven rules fire, reducing noise and focusing on meaningful changes
- Provides per-field diffs, durable state tracking, and HMAC-signed webhook delivery with retries and dead-letter queues for reliability
- Offers flexible alerting options including Slack, Discord, email, and custom webhooks to fit existing workflows
Cons
- Requires technical configuration to define predicates and extraction rules, which may involve a learning curve for non-developers
- Dependent on the stability and structure of target webpages, which may change and require updates to extraction rules
- Limited to public webpages or those accessible via API endpoints, as it does not support private or authenticated content
Frequently asked questions about Verid
What does Verid do?
Verid is an API-first web change-monitoring service that tracks changes on any webpage and extracts structured fields using multiple methods, including AI-powered extraction. It only notifies users when predefined predicate rules are met, delivering alerts via webhooks, Slack, Discord, or email.
Who is Verid designed for?
Verid is designed for developers and technical teams who need to monitor specific fields on webpages, such as prices, stock status, or version updates, without building and maintaining custom scraping solutions.
How does Verid handle dynamic or changing webpage structures?
Verid uses multiple extraction techniques, including CSS selectors, XPath, JSONPath, regex, full-page hashing, and LLM-powered AI extraction, to locate fields even when page structures change. It automatically escalates from static fetching to headless browsers or residential proxies if needed.
What types of alerts does Verid support?
Verid supports alerts via HMAC-signed webhooks, Slack, Discord, and email. Alerts include before/after diffs of the specific fields that changed, ensuring users receive actionable and context-rich notifications.
Can I test Verid before integrating it into my workflow?
Yes, Verid offers a free, no-signup option to check for changes on any public URL and view live diffs. This allows users to evaluate the service before obtaining an API key and setting up monitors.
How do I get started with Verid?
To get started, paste a public URL on the Verid website to see a live diff, then obtain a free API key to create monitors via the REST API. The service provides documentation and guides for configuring extraction rules and predicates.
