Median 46s to alert. Worst case, under 2 minutes.
Be the first reply
on X, every time.
X has no native alert for a keyword. We scan for you and notify you the moment a match appears, early enough that your reply is the first thing under it.
Marie builds
@mariebuilds
shipping a tiny saas this week, first users tomorrow 👀
X-Radar
🔔 "saas": new match, 00:00 old
x.com/mariebuilds/status/…
Built for one job
Not a general listening tool with alerts bolted on. X-Radar does exactly one thing: tell you when a keyword matches, fast.
Full search, not a subset
Every operator X's own search bar supports works here, including one X's official API doesn't expose.
Nothing hidden
Quota, failures, and status are always visible on your dashboard. No silent cutoffs, ever.
Reply timing on X isn't a nice-to-have. It's the entire mechanic that decides whether anyone sees what you wrote.
3-5×
more visibility for a reply posted in the first 15 minutes than one posted two hours later.
30-60 min
how long X's algorithm evaluates a post most aggressively. Miss that window and the ranking is already decided.
Where the market sits
Keyword alerts on X are either complete and slow, or fast and narrow. Nothing else sits under two minutes.
| Tool | Latency | Price | The catch |
|---|---|---|---|
| Refreshing X yourself | Whenever you look | Free | You have to be watching, constantly. |
| Prowlo | ~60 min | $19/mo | Unlimited keywords, but checked hourly. |
| Xanguard | Under 10 min | $100/mo | Fast, but capped at 20 queries. |
| X-Radar | Under 2 min | From $20/mo | Every 90 seconds, on the keywords that matter. |
Search like you mean it
Full X search syntax, not a stripped-down keyword box: OR, quoted phrases, exclusions, language and author filters.
min_faves: is the one that matters most. It means "tell me once this post already has traction," not just once it exists. It doesn't exist in X's official API.
@mariebuilds
shipping a tiny saas this week 👀
@buildinpublic
hit $1k mrr on my saas today, feels unreal
Active hours · Europe/Paris
Scan interval
90s
Every 90 seconds, on your schedule
Set your timezone once, as an actual place, not a fixed offset. Scans only run during the hours you choose, DST included, so you're never woken up by a keyword you'll never reply to at 4am.
Solo watches one keyword at 90 seconds; add more and the budget spreads across them. You choose the trade-off, we show you the math before you commit to it.
You'll always know why
Most alert tools go quiet when something's wrong, and silence looks exactly like "nothing happened." X-Radar tells you which of four things it actually is.
Quota reached, a scan that broke, a keyword that's genuinely quiet right now, or Telegram blocking the bot: four different signals, never one confusing blank.
Built different
No access to your X account
We read X's public search through a licensed API. We never ask for your login, and we couldn't post as you if we wanted to.
The same data X's own search uses
Scans run through TwitterAPIs, a provider we measured head-to-head against X's native search: same top result, same moment.
30-day money-back, no form
Ask once, refunded once. No retention flow, no "are you sure," no waiting for approval.
Every scan is logged
Your dashboard shows exactly when we last checked, what we found, and why a quiet period is quiet.
From signup to your first real alert
Link Telegram
One tap, one deep link. No chat ID to copy by hand.
Add a keyword
Full X search syntax: OR, exclusions, min_faves: to catch a post the moment it starts taking off.
Get a real match, immediately
Not a test message. An actual recent post, so you know it works before you trust it.
Questions
Is this against X's rules?
We query X's public search through a licensed third-party API, on the schedule you set. We never use your X account or credentials, and we never ask for them.
What happens when I hit my quota?
Scans already in progress still deliver, you paid for those. New ones pause until your quota resets. You get a notification at 80% and at 100%, never a silent cutoff.
Is there a trial?
Yes — $0.99 for 48 hours, full 90-second speed, 250 scans, 1 search. Pick your plan before you pay, and it's the one you convert to automatically when the 48 hours are up, unless you cancel first. One click either way, and the same 30-day money-back guarantee applies once you're on a paid plan.
Can I really use OR, exclusions, and min_faves?
Yes. X-Radar proxies X's own advanced search, so anything that works in X's search bar works in a keyword here, operators included.
What if I block the Telegram bot by accident?
Your dashboard flags it immediately with a reconnect link. The moment you unblock it, scanning picks back up, nothing is lost in between beyond that gap.
Can I change my plan later?
Upgrades apply immediately, with proration, so you're never stuck at 100% mid month. Downgrades take effect at the end of your billing period, so your quota never shrinks while you're still using it.