One strength & conditioning coach

One athlete.
One arc.
Every session shows its math.

Lifting, intervals, runs and mobility, planned as one progression toward the sport or goal you're chasing. Every number Zeroed gives you comes with its arithmetic. Train with it in the app, or talk it through inside Claude.

Open Zeroed See the arc

Your first read takes about 30 seconds. Runs in the browser and installs to your home screen. iPhone app in progress.

Current phase15d to retest

An example program in its Strength block, week 2 of 4, after Stability and before Power and Sport. This week holds two lifting sessions, a conditioning session and a mobility session.

The arc

Everything you train, on one arc.

Your lifting, your conditioning and your mobility share one body and one week, so Zeroed plans them together. Four blocks build toward what you're training for, and every week inside them ends in a call you can read.

  1. Name what you're training for

    A sport, a number, your body, staying healthy, or an event. In about 30 seconds you get a first read on what's holding you back, with a confidence number.

  2. Get the arc

    Four blocks: Stability, Strength, Power, Sport. Each one has a job, the sessions that do it, and the test that moves you on to the next.

  3. Train the week

    Lifts, intervals and mobility sit in one week, in any order. Each lift opens with today's number and its reason. Interval blocks run on a timer you can read from the bike.

  4. Take the call

    Close the week and get PROGRESS, HOLD or DELOAD, with the reason written out. Next week follows from it.

Every four weeks, a retest checks the block before the next one starts: Stability → Strength → Power → Sport.

The Train screen: this week, Lower A and Upper A logged, with Conditioning up next and a Mobility session on Saturday.

The read

Every set is evidence.

The read isn't a quiz result. It's a claim about you that your training can confirm or knock down. The reticle's tightness is that confidence: no timer, no theatre.

  1. First read · before you sign up

    A hypothesis, not a verdict.

    Pick what you want to be able to do (a sport, a number, your body, staying healthy, an event) and where it gives out. Zeroed names the most likely limiter and how sure it is. It starts modest on purpose: it hasn't watched you train yet.

    P1 · 35% · hypothesis

  2. Session 1 · debrief

    “Left knee caved on the last split squat set.”

    Your end-of-session note gets read and classified: confirming, moderate. The model only names the direction. The code sets the step.

    confirming · moderate · +0.10

  3. Session 3 · flag

    Tweak, on the lift under test.

    Flag a tweak or pain on the clearance lift and the limiter gets re-confirmed: the biggest step one observation can take. The test restarts, and that lift doesn't push next week.

    confirming · strong · +0.15

  4. Session 5 · the capped work

    Two top sets at RPE 8. No pain.

    Evidence cuts both ways. A strong, pain-free session on the work the read was capping counts against it, and banks one of the two sessions that clear the cap. One more like that and the cap comes off.

    clearance · 1/2 banked · −0.15

No single observation moves the read more than 15 points. Statuses run hypothesis → likely → confirmed, or resolved and disproved. The model classifies; the code does the math.

Every session shows its math

A coach's reasoning, written down.

Loads come from the engine, not a guess, and each one carries its reason a tap away. Whatever you're training today, you can see why it's that number.

01 — Today's number

Every lift shows its number. And its working.

Squat, bench, deadlift and press each get a call (push, hold, drop or repeat) and a load rounded to plates you own. The training max comes off the RPE chart, not a guess, and every number carries its reason line. Tap Why for the rest.

  • Training max is 90% of a working max built from qualifying sets: 1–6 reps at RPE 6–9.5, last six weeks, recency-weighted.
  • Your all-time best is a ceiling, not a target. Nothing goes more than 2.5% over it, except on a test day.
  • Back-offs follow the top set. A point heavy takes 5% off; a point light adds 2.5% upper body, 5% lower.
  • Short on sleep or readiness under 5? Today drops 5% and RPE caps at 7. A sore knee takes 10% off squats, lunges and jumps.
The workout screen during Back Squat. The chip reads "Push · 235lb × 5 @8" with the reason "235 = 94% of TM 250". Set one is logged at 235 for 5 at RPE 9 and marked as a PR, so the back-off sets drop 5% to 225. A three-minute rest timer is running.

02 — Intervals

Intervals on a clock you can read across a room.

Ask for a Tabata finisher, an EMOM, or 6 × 30s on / 90s off, and the coach writes it into your session the way you'd say it. The player runs it full screen, and the phase owns the colour: yellow is work, blue is rest, before you've read a digit.

  • Sound cues on every change, a 3-2-1 at the end of each phase, a halfway cue in rounds of 20 seconds or more, and a different chord for the last round.
  • Bike, rower, ski, treadmill, sprints, shuttles, sled: if it's work and rest, it runs here.
  • Add your own finisher mid-session, or adjust a block for today. The program keeps its own dose.
  • Finish and it banks rounds, work time and total time, with an optional rating of how hard the block was.
The interval player during a Tabata on the Assault Bike: round 5 of 8, 14 seconds of work left on a yellow ring, rest of 10 seconds next, four rounds already banked, 1:44 left in the block.

03 — The load cap

A cap that tells you how to lift it.

While your top limiter is unresolved, Zeroed holds load on the work that trains it. It doesn't shift volume quietly. It says so in the session, then names the exact test that clears it.

  • The rule has a name: Never load over instability. It only bites while the read is at least 30% sure.
  • The way out is specific: 2 top sets at RPE 8+, pain-free, across 2 sessions on one named lift.
  • Ready before the test says so? Push it aims at the uncapped number. A pushed set that lands clean counts toward clearing.
The load cap in a session: a card titled "Never load over instability" explains the Lower Chain limiter is 60% confident, with one of two clearance sessions banked. Below, Bulgarian Split Squat is held at 50 lb with a Push it button.

04 — The weekly call

Progress, hold or deload. With the reason.

Close the week when you're done, or it closes itself once Sunday's over. Zeroed checks your adherence, your RPE against the block's own contract, and your pain flags, then makes the call and writes down why.

  • PROGRESS takes 80% adherence, average RPE at or under target, and zero pain flags. That adds 5%.
  • DELOAD fires on two pain flags, or RPE half a point past the block's ceiling. Load comes down 10%.
  • Injured or taking time off? Say so, and the next week is recovery. The engine never guesses that for you.
  • Each main lift still gets its own call from its own top sets, so one bad day on bench doesn't hold back your squat.
The weekly recap: next week's call is PROGRESS, plus 5% load, because adherence was 100% and average RPE 7.5 against a target of 8 with no pain. Four of four sessions, 58 sets, 41,850 lb moved.

05 — Change the program

Steer the program in plain words.

Want explosiveness for basketball, a short HIIT day, a mobility session, more hypertrophy volume? Say it. Each message edits the same working draft, and the week marks itself up live: what's added, retuned or dropped, and what each session now costs in minutes.

  • Additive by default. Nothing is removed unless you ask, and every refused edit says why.
  • Undo one turn at a time. Nothing is written until you tap Apply.
  • Choose when it lands: start now, or Monday, leaving this week's logs untouched.
  • Your words are kept as a standing preference, so the next block doesn't quietly drop them.
Changing the program in conversation. The athlete asks to add basketball explosiveness. The coach adds a box jump, a med-ball throw and a lateral bound, retunes the Romanian deadlift to 3 by 6, and shows Lower A growing from 48 to 57 minutes, with Apply and Undo buttons.

The finish line counts what you did.

Example session · Lower A

17sets
9,840lb moved
54min

PRBack Squat

Finish a session and the check locks on, the numbers count up, any record gets named. Then it gets out of the way. No streaks, no badges invented to bring you back. Only numbers you actually produced. (The figures above are an illustration, not anyone's real log.)

Built for the gym floor

Fast with a chalked thumb. Fine with no signal.

Logs with no signal

A finished session saves on your phone before it touches the network, counts on your week instantly, and syncs when you're back. One bad upload never holds up the rest.

One tap repeats a set

The check carries your last numbers into the empty fields, and the dimmed placeholder shows exactly what it will log. Tap targets are built for a bar in your hands.

Rest sized to the lift

Completing a set starts the clock: three minutes for a main lift in a strength block, 60–90 seconds for accessories. Plus or minus 30 when you know better.

A check-in that moves numbers

Sleep, readiness, both knees. Optional, folded to one line, and it actually changes today's loads instead of just being filed.

Swaps and demos

Swap any movement for a ranked stand-in that fits the pattern and your equipment. Main lifts, jumps, sprints and lateral bounds come with animated demos, how-to steps and faults to watch for.

History that answers back

Every session by week, every lift's e1RM trend with PRs on the day they happened, and a balance read against your own lifts, not a population chart.

In the app, or inside Claude

The same coach, inside Claude.

Connect Zeroed to Claude and talk your training through where you already think out loud. Claude reads your program, your week and every logged session, and drafts changes that go through the same engine as the app. Nothing is written until you say yes. It sees one athlete: the one your token belongs to.

Reads

  • get_training_brief
  • get_athlete
  • get_insights
  • get_current_program
  • list_workouts
  • get_workout
  • search_lifts
  • get_lift_model
  • get_program_journey
  • get_coach_notes
  • preview_program_edits

Your week, your read, every logged session, per-lift e1RM trends, the lift model's reason lines, and the coach's notes.

Writes, only with confirm

  • apply_program_edits
  • set_training_max

Preview first, then apply. Claude shows the diff from preview_program_edits, and nothing is written until it calls back with confirm=true after you agree. The live week is re-read on apply, so a stale preview can't overwrite a newer in-app edit.

Ask for a Tabata finisher on Thursday and Claude previews the edit. Confirm it, and the app runs it on the interval timer.

Connect Claude

Works today

claude.ai and Claude Desktop, on Pro or Max.

  1. In Zeroed, open You → Claude connector. Name a token (say, “Claude”), tap Create, then Copy URL + token. It's shown once; Zeroed only keeps a hash.
  2. In Claude: Customize → Connectors → + Add → Add custom connector.
  3. Name it Zeroed, paste the server URL you copied from the app, and hit Continue.
  4. Authentication: No sign in.
  5. Under Request headers, add header name authorization with value Bearer YOUR_ZEROED_TOKEN, then Add.
  6. Enable Zeroed in a chat and ask: “What's on my training week?”

Claude's Request headers option isn't on every account yet. On Team or Enterprise plans, an Owner adds the connector under Organization settings → Connectors.

Already connected? Zeroed's server has a new address. Edit the Zeroed connector in Claude and set its URL to https://zeroed.madeforgreatnesslabs.com/functions/v1/mcp. Your token keeps working.

Alternative: Claude Desktop config file

Needs Node.js. In Claude Desktop open Settings → Developer → Edit Config and add the server below. Then fully quit Claude Desktop and reopen it.

{
  "mcpServers": {
    "zeroed": {
      "command": "npx",
      "args": [
        "-y", "mcp-remote",
        "https://zeroed.madeforgreatnesslabs.com/functions/v1/mcp",
        "--header", "Authorization: Bearer YOUR_ZEROED_TOKEN"
      ]
    }
  }
}

Revoke a token any time from the same screen. Tokens are rate-limited per key. Never paste a real token anywhere public.

One athlete. One arc.
Zero in.

Get your first read in about 30 seconds, then your first session. No password. A code lands in your inbox.

Open Zeroed

Works in any modern browser; add it to your home screen. iPhone app in progress.