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Web + News Search Monitor
x402
Web + News Search Monitor is a paid API for AI agents from agent-search.centorprat.workers.dev, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-30).
Polls web or news search results for a query and returns only new (unseen) results since the last call, using a watchId to track state.
Price / call$0.006
Success—
StatusUnknown
How this service works
Monitor a topic: call with a query (web or news) and a watchId; each call returns only the results you have not seen before (newResults) plus the full list, so polling agents stop re-reading old links and spending tokens on them. No setup: the first call creates the watch. Hashed URLs only, kept 60 days; the query text is never stored.
Output
Returns two lists: 'newResults' containing only URLs/results the agent has not seen in previous calls for this watchId, and a full result list. URLs are stored as hashes (not raw text) for 60 days. The first call initializes the watch automatically with no prior setup required.
Example use cases
Competitor brand mention tracker
“Monitor the web for new mentions of 'Acme Corp AI' — use watchId 'acme-brand-monitor', search the US, and each time you check just give me the links I haven't seen yet, up to 10 results.”
Breaking news alert for a topic
“Watch for breaking news stories about 'Federal Reserve interest rates' from the past hour, using watchId 'fed-rates-news', and only surface articles I haven't read before — check news results, US, up to 5 new stories.”
Recruiting market intelligence feed
“Track new web pages mentioning 'senior ML engineer layoffs 2025' — use watchId 'ml-talent-watch', limit to 10 results per check, and skip anything you've already shown me before.”
Technical details
Endpoint
POSThttps://agent-search.centorprat.workers.dev/watch?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to repeatedly poll a search query over time and must avoid re-processing URLs it has already seen — for example, in monitoring loops, alert pipelines, or any agentic workflow where token efficiency matters. Prefer it over a plain search endpoint whenever the use case involves recurrent polling rather than a one-shot lookup.
Side effects
- watchId not provided on a subsequent call — treated as a new watch, losing dedup state
- watchId shorter than 8 or longer than 64 characters — rejected
- kind value other than 'web' or 'news' — may default or error
- hours parameter used on web (non-news) kind — ignored or error
- query not provided — required field missing error
- time freshness value not matching allowed enum (hour/day/week/month/year) — rejected
- watch state expires after 60 days — all results appear new again
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| kind | string | web | news (default web) |
| time | string | freshness: hour, day, week, month or year (optional) |
| hours | integer | news only: window in hours |
| query | string | What to search for |
| country | string | 2-letter country the results are for: us, gb, de, es, fr, in, br, ... (default us) |
| private | boolean | true = the query is not logged or cached (default false) |
| watchId | string | 8-64 chars; leave out on the first call |
| numResults | integer | 1-20 |
Tags
x402
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