HashMaximizer auto-tracks downtime against your hosting SLA, builds the curtailment credit case, and tells you which SHA-256 coin to mine — all before 6am.
No contract yet? Use our estimated SLA baseline. Upload your contract to confirm exact terms and unlock full credit intelligence.
No credit card · Free for up to 3 machines · Works with MiningRigRentals
BC2 (Bitcoin 2) is an emerging SHA-256 coin with merge-mining potential — monitored but flagged when unprofitable
What lands in your inbox every morning
* QUAI: 14-day lockup risk factored in — needs 1.50× minimum to trigger SWITCH
Free for up to 3 machines · No credit card
Every feature was built because I needed it first. No vague dashboards, no bloat — just the data that changes what you mine and whether you're making money.
Upload your hosting contract — HashMaximizer extracts your SLA terms, calculates expected uptime, and automatically builds the credit case when your host falls short. No contract? Use our estimated SLA baseline to get started.
Every minute rigs are offline is logged against your SLA. Curtailment events, unexpected outages, and degraded hashrate periods are all captured automatically — no manual entry for your curtailment reports.
Every morning before 6am your local time: a SWITCH / WATCH / HOLD call across BTC, BCH, BC2, and QUAI — calculated from live difficulty, price, block reward, and your actual hosting cost. No spreadsheets. No YouTube opinions.
1-minute hashrate snapshots when rigs are rented, graduated to 30-min when idle. Offline alerts, uptime tracking, and a per-machine hashrate chart with 30-day history.
Connect MiningRigRentals and get per-machine monthly P&L — rental revenue vs. electricity cost, six months back. Know exactly which rigs are making money from rentals.
Yesterday, last 7 days, month-to-date — earnings, rental income, fleet health, open curtailment credits, and the day's coin signal. Everything you need before your coffee is done.
Apr 15 – Jul 13, 2026 · 1,000 TH/s fleet · 1% pool fee
When BCH ran 1.93× BTC profitability for 38 days, the signal caught it.
That single event added +$1,056 over the BTC-only baseline for this 1,000 TH/s fleet. The signal stepped back to HOLD on May 23 when the ratio fell to 1.50×. The remaining 52 days earned the same as BTC-only.
Past performance does not predict future results. A window without a switch event shows no gain over BTC-only.
BTC/BCH daily prices: Kraken OHLC · BTC difficulty: mempool.space · BCH network hashrate: WhatToMine (current 3.03 EH/s, used as period representative) · Hypothetical execution: switch next day after signal fires · no slippage or strategy cost modeled
Running 8 rigs across 5 states — TX, MN, IA, IN, MI.
Every feature was built because I needed it first. I wrote the curtailment tracker after my host fell short and I had no way to prove the hours. I wrote the coin signal after too many mornings with a spreadsheet. This isn't a product designed in a vacuum — it's the tooling I wished I had when I started.
Your key is stored encrypted at rest and never exposed in the browser or logs. You can revoke it anytime from MRR Account Settings → API Keys. HashMaximizer uses the standard MRR read-access scope only for pool management operations.
Start free. Upgrade when your fleet grows.
One recovered curtailment credit typically covers months of fees.
All plans include a 14-day free trial. Cancel anytime. Existing subscribers are grandfathered at their original price.
Built by an active miner — watch before you sign up
Ray runs a real SHA-256 fleet across 5 states and documents every P&L decision on YouTube. The public fleet view shows live hashrate and coin decisions — no login required.
HashMaximizer is a free fleet management and coin optimization tool for SHA-256 ASIC operators. It tracks live hashrate, logs downtime against your hosting SLA, builds curtailment credit cases, and sends a daily SWITCH/WATCH/HOLD email signal comparing BTC, BCH, BC2, and QUAI — all built around your actual fleet, hosting costs, and MiningRigRentals account.
Upload your hosting contract (or use our estimated SLA baseline). HashMaximizer calculates your contractual uptime guarantee, then automatically logs every downtime event against it. When your host falls short, you see exactly how much credit you're owed, with an export-ready claim report. Contract details are used only to calculate your SLA — you confirm exact terms by uploading the contract.
Yes. The Hobbyist plan is free forever — up to 3 machines, full monitoring, daily coin signal, and the 6am email brief. No credit card required. Paid plans add curtailment credit tracking, contract intelligence, P&L tools, and MRR integration: Operator ($29/mo · up to 15 machines), Fleet ($99/mo · up to 75 machines), Industrial (75+ · contact sales).
Yes. Your MiningRigRentals API key is stored encrypted in our database and is never exposed in the browser or logs. We request only the read scope — the key can read your rig data and rental history but cannot place orders or move funds. You can revoke it from your MRR account settings at any time.
Yes. Connect your MRR API key and HashMaximizer pulls rental history for each rig, calculates net P&L (rental revenue minus electricity cost), and shows you a six-month income table broken down by machine and month. It also logs downtime events automatically when rigs go offline, which you can export for curtailment reporting.
It calculates net USD revenue per TH/s per day for each SHA-256 coin using live price, network difficulty, block reward, and pool fees — then subtracts your actual electricity or hosting cost. A SWITCH signal fires when an alt coin beats BTC by your configured threshold (default 1.5×). WATCH at 1.2×. HOLD means stay on BTC. QUAI's 2-week lockup risk is factored in: you need a 50% premium (1.5×) above BTC to justify the exposure.
HashMaximizer polls the MRR API on a graduated schedule — every 1 minute while a rig is rented (when it matters most), slowing to every 30 minutes when idle. You get offline alerts, uptime percentage, and a 30-day hashrate chart per machine. No separate monitoring software needed.
Any SHA-256 ASIC — Bitmain Antminer S21, S21 Pro, S21 XP, S19K Pro, S19j Pro, S19 XP, and MicroBT Whatsminer M50/M60 series. Enter your machine's rated TH/s and wattage, and HashMaximizer handles the rest.
A hosting SLA guarantees a minimum uptime -- typically 95-98%. The SLA buffer is the downtime your host is contractually allowed before they owe you credits. HashMaximizer tracks every offline minute against your contract threshold, flags when cumulative downtime exceeds your buffer, and documents the credit case you bring to your hosting provider.
Add your machines and hosting cost. Connect MRR. Upload your contract. HashMaximizer tracks everything and sends you the daily call at 6am your time.
Get the signal free →No credit card required · Free for up to 3 machines