XSDR – Real-time event monitoring infrastructure for agents
XSDR is a unified pipeline for monitoring activity on X and the web. I built it because I wanted my agent to do things based on real-time events that were taking place instead of polling the web or scheduling cron jobs. With XSDR, you can trigger agentic loops based on real-time events. All you need is an API key, a webhook that can receive POST requests, and an idea of what you’re looking for. It currently supports X and Firehose (aka a persistent web crawler).
XSDR – Real-time event monitoring infrastructure for agents launched on June 29, 2026 with 9 votes, #1,453 of 22,647 launches that month and more than 75% of that year's launches.
What it does
XSDR is a unified pipeline for monitoring activity on X and the web. Define criteria using boolean logic, keywords, and filters — we match them against a live stream of tweets and web crawl data, then send matches to your app or agent via webhook the moment they hit. No polling. No infrastructure. Just persistent rules and a stream of structured events your app can act on immediately.
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