Features
Everything between running and reserved.
Reserver covers the whole distance: see what's running, know what you own, decide what to buy, and let the buying run itself — exactly as far as you're comfortable.
See
Know exactly what's running, and what covers it.
Full fleet inventory
Reserver scans every connected account for running RDS instances, ElastiCache clusters, and EC2 instances — class, region, AZ, engine, platform, the dimensions that decide whether a reservation applies.
Reservation ledger
Every Reserved Instance you own, in one ledger: term, payment option, expiry date, and — crucially — whether anything is actually using it.
Coverage map
Reserved capacity filled in carmine, on-demand left as an outline, expiring terms flagged in brass. Coverage percentage per service, per region, per account.
Expiry radar
Reservations don't fail loudly — they just lapse, and the bill quietly climbs. Reserver tracks every end date and starts the renewal conversation well before it.
Waste detection
Unmatched reservations are money leaking the other way. If you own a reservation nothing is using, Reserver says so and suggests what to do about it.
Decide
Recommendations that show their work.
Concrete purchase proposals
Each recommendation is a line item, not a hint: db.r6g.xlarge ×4, 3-year, no upfront, us-east-1 — with the on-demand baseline, the reserved rate, break-even date, and dollars saved per year.
Term & payment comparison
1-year vs 3-year, no/partial/all upfront, side by side for your actual usage. Pick your risk appetite with the numbers in front of you.
Stability-aware
Reserver looks at how long an instance has been running before recommending a commitment. A database that's survived two years gets a different answer than one launched last Tuesday.
Act
Buying a reservation should be one motion.
One-click purchasing
Accept a recommendation and Reserver executes it through the AWS reservation purchase APIs — RDS, ElastiCache, and EC2 from one place, no console safari.
Renewal autopilot
Set the policy once: when a reservation nears expiry, re-buy on the same or updated terms — automatically, or after a human approves.
Scheduled purchases
Align purchases to your budget cycle. First of the quarter, start of the fiscal year, the day after the board meeting — Reserver buys when you said to.
Age-based rules
"Any instance older than 90 days gets reserved." The rule that captures the truth about most fleets: if it's still here, it's staying.
Approvals & audit trail
Every automated purchase can require sign-off first, and every purchase — manual or automatic — is logged: who approved it, what it cost, what it saves.
Notify
Told, on your channel — not surprised, on your invoice.
Email, Slack, SMS
New recommendation, upcoming expiry, completed purchase, coverage drop — delivered where your team actually looks.
Watch-only mode
The basic plan never touches your account beyond reading it. Reserver recommends; you decide. Automation is strictly opt-in, per rule.
Digest, not noise
A weekly summary of coverage, savings captured, and what's coming up — tuned so the one urgent alert still lands loudly.
Covered today: Amazon RDS · Amazon ElastiCache · Amazon EC2 — more on the roadmap →
Prefer to see it? Take the product tour →
Stop overpaying for a steady fleet.
Reserver is in early access. Join the list and we'll onboard you as capacity opens up — first recommendation within minutes of connecting.