Pay per use · 20 apps

Apps that earn per use, from people and AI agents.

People or AI agents pay a few cents for each call, check, answer or minute, often in USDC over x402, straight to your wallet.

IN THE $100 APP

The paid endpoint or paid action, with the price shown before anyone pays.

Optional owner console add-on: set prices per action and read every paid call in a log. Quoted after delivery.

THE CATCH

Cents add up only with steady use. You find the users; the app makes each use payable.

No app here promises income. Whether it earns depends on people using it.

Evidence the rail is real

Read it from the source

x402.orgAn open standard for paying per HTTP request in stablecoins, built for agents.Coinbase docs: x402How sellers take x402 payments on Base.

Every app that earns this way

20 apps, mechanism and plans for each

Ready apps and apps with a live demo come first. Each card links to the line in its owner kit, the demo where you can watch it earn, and the app page.

Agent Passport

Give your AI agent a verifiable identity and reputation tied to you, its human.

Fee sharePay per usePlans

Buyers always check passports for free. Builders pay a monthly plan for Pro tools, studios pay for many agents, and the owner can add a small fee per stamp.

Fee: Optional stamp fee set by the owner, $0.02 by default.
Plans: Pro builder $12 a month · Agent studio $49 a month
In the $100 app: Embeddable badge and extra agents · Paid job stamps with receipts · Refund rule from escrow
Console add-on: Revenue, payouts and paywall editor · Trust desk, rules, agent log and roadmap

See it earn in the demo Own it

Apprentice Ledger

Teach an AI agent your craft, and every time it earns, you earn as the teacher of record.

Fee sharePay per usePlans

Teachers never pay to be credited. The operator keeps a share of each paid job, firms subscribe for approved access, and teachers can upgrade to Pro for protection and insight.

Fee: Firms pay $0.02 to $0.10 per job over x402.
Plans: Teacher Free to start · Teacher Pro $8 a month · Firm plan $49 a month
In the $100 app: Pay per job over x402 · Paid escalation to the teacher · Copycat guard and disputes
Console add-on: Revenue and paywall editor · Priced roadmap

See it earn in the demo Own it

Care Hours

Caregivers and parents prove unpaid care work, privately, for loans and jobs.

Pay per usePlans

Carers never pay to prove their own work. Families pay for the family tools, partner charities sponsor their members, and verifiers pay per check.

Fee: Verifiers pay $1 per verification.
Plans: Family Plus $4 a month · Partner $99 a month
In the $100 app: Family rota with co-signing · Link open receipts · Plans and interview letter
Console add-on: Revenue and paywall editor · Rules, agent log and roadmap

See it earn in the demo Own it

Character Circle

Five people who know you vouch for your honesty, privately aggregated into one trust score.

Pay per usePlans

Applicants never pay to be vouched for or to vouch. Applicants pay for extra rounds and landlord check links, organisers pay to run circles, and verifiers pay per badge check.

Fee: Verifiers pay $0.50 per badge check.
Plans: Trusted Plus $3 a month · Circle $12 a month
In the $100 app: Second round per season · Private comments digest · Badge check links with view receipts
Console add-on: Revenue, paywall editor and payments · Season agent log and roadmap

See it earn in the demo Own it

Craft Graph

Merge your GitHub, Figma, and onchain deploys into one verified contribution map.

Pay per usePlans

Builders never pay to prove their own work. Craft unlocks design threads and private work, Studio serves agencies and crews, and programs pay a small fee per reviewed cloth.

Fee: Programs pay about $2 per reviewed cloth.
Plans: Craft $6 a month · Studio $49 a month
In the $100 app: Figma design threads · Sunday digest · Private repo proofs with client co-sign
Console add-on: Revenue and paywall editor · Rules, agent log and roadmap

See it earn in the demo Own it

Credential Kiosk

Any school, bootcamp, or guild issues verifiable certificates in an afternoon.

Pay per usePlans

Schools issue and verify free on Starter. Busy schools pay monthly for Kiosk Pro, guilds pay for a shared verifier, and recruiters pay per bulk verify check.

Fee: Recruiters pay $0.50 per paid verify check (owner sets it).
Plans: Kiosk Pro $40 a month · Guild $150 a month
In the $100 app: Certificate designer · Claim tracking and nudges · Monthly checks note
Console add-on: Revenue and paywall editor · Kiosk rules · Priced roadmap

See it earn in the demo Own it

Day Pay

Pay casual workers at the end of each shift to an account they open with their Google login.

Pay per usePlans

Workers never pay to be paid. Foremen pay a few cents per payout, or a monthly plan per site, and contractors pay for many sites on one bill.

Fee: Cash out partner fees are set by the licensed partner and shown to workers before each cash out.
Plans: Per payout $0.05 per payout · Site Pro $19 a month · Contractor $79 a month
In the $100 app: Site float and top up · Lunch advances · Sunday digest and CSV export
Console add-on: Revenue and paywall editor · Sites, rules, agent log and roadmap

See it earn in the demo Own it

Deed Witness

Real world good deeds, verified by a photo, a place, and a witness, saved forever.

Pay per usePlans

Checking in and witnessing are free forever. Volunteers pay a small monthly fee for exports and insights, organiser groups pay monthly to cover every member, and NGOs pay per season export.

Fee: Season export to an NGO, $15 each.
Plans: Volunteer Plus $3 a month · Organiser $24 a month per group
In the $100 app: NGO ready export · Season calendar and RSVP · Impact insights
Console add-on: Revenue and paywall editor · Roadmap requests

See it earn in the demo Own it

Fine Tune Fund

Crowdfund a small open AI model for your niche and share in usage fees when it's live.

Fee sharePay per usePlans

The owner earns a fee only on successful campaigns, a small cut of every paid call, and monthly upkeep from communities without engineers.

Fee: Platform cut of about 8 percent on x402 call revenue, set by the owner.
Plans: Campaign fee 3% of funds raised, only if funded · Clinic key (per call) $0.002 to $0.01 per draft, $25 prepaid · Hosted upkeep $99 a month
In the $100 app: Three step onboarding · Pledge through checkout · One tap eval reruns
Console add-on: Revenue and paywall editor · Build log and roadmap

See it earn in the demo Own it

First Draft Seal

Timestamp your original prompts and creative process so you can prove the idea was yours first.

Pay per usePlans

Sealing starts free so the habit forms early. Creators pay monthly for Studio and Agency, and clients or platforms pay per verification check.

Fee: Verification checks from clients and platforms at $0.50 each.
Plans: Studio $6 a month · Agency $29 a month
In the $100 app: Tonight's drafts and next action · Seal every save and encrypted vault · Client delivery pages
Console add-on: Revenue and paywall editor · Agent log and roadmap

See it earn in the demo Own it

Launch Receipt

Every launch gets a printable safety receipt: locks, caps, owner keys, all checked live.

Pay per usePlans

Reading a receipt is free. Buyers pay monthly to watch tokens and get alerts, projects pay per embedded token for a live receipt they cannot edit, and wallets or launchpads pay per API receipt.

Fee: API receipts for wallets and launchpads at $0.01 each.
Plans: Watcher $4 a month · Project embed $29 a month per token
In the $100 app: Paste and print receipts · User set red lines · Watchlist and Sunday digest
Console add-on: Revenue and paywall editor · Priced roadmap

See it earn in the demo Own it

Launch Sentinel

An AI agent that watches your own launch and warns you of misconfigurations before you ship.

Pay per usePlans

Free first sweep each month, then subscriptions for founders and studios, plus launchpad integrations at a monthly fee. All paid in USDC.

Fee: Launchpads pay $500 a month to require a sweep before listing.
Plans: Founder $30 a month · Studio $150 a month
In the $100 app: Launch config form · Strict mode · Public report and checked-by badge
Console add-on: Revenue and paywall editor · Roadmap build requests

See it earn in the demo Own it

Quiet Proof

Prove you are over 18, a resident, or a degree holder without showing a single document.

Pay per usePlans

Members prove for free. Organisers pay monthly to run a gate, organisations pay for several gates and a fallback queue, and apps that check occasionally pay per successful proof. All paid in USDC.

Fee: Per check apps pay $0.25 per successful proof by default, set by the owner.
Plans: Organiser $19 a month · Organisation $99 a month
In the $100 app: Diary export and auto renew · Gate builder · Plans and USDC checkout
Console add-on: Revenue and paywall editor · Roadmap requests

See it earn in the demo Own it

Sealed Rent

Landlords take sealed encrypted rent offers, and nobody sees the others.

Pay per usePlans

Applicants never pay. Landlords pay a fee per listing, and coops pay monthly for unlimited listings, the lottery rule, member votes and the intake agent.

Plans: Landlord $15 per listing · Coop $39 a month
In the $100 app: Listing rules · Lottery and member votes · Intake agent
Console add-on: Revenue and paywall editor · Rules, agent log and roadmap

See it earn in the demo Own it

Second Look

Pay three independent AIs a few cents to check one answer, and get a signed receipt of agreement.

Pay per usePlans

Pay as you go users pay verifier cost plus a small margin per check; professionals and firms pay monthly for workflow features.

Fee: Margin per pay as you go check set by the owner (default $0.02), and an optional listing share from verifier operators.
Plans: Pay as you go Cost plus 2 cents per check · Professional $12 a month · Firm $49 a month
In the $100 app: Run a check · Claim by claim mode · Branded receipt page and Friday outbox
Console add-on: Revenue and paywall editor · Router log and roadmap

See it earn in the demo Own it

Skill Duel

Prove a skill live: timed challenge, peer judged, result minted to your profile.

Pay per usePlans

Entrants pay a small entry fee per duel that mostly pays the judges, with the first duel free. Pro members pay monthly for senior panels and reviews, and companies pay monthly for hiring partner seats.

Fee: Judges receive a fee per duel (default 4 USDC) from the escrowed entry fee.
Plans: Open $10 an entry, first duel free · Pro $19 a month · Hiring partner $300 a month
In the $100 app: Pro tracks with three senior judges · Judge roster and blind queue · Written review and score insights
Console add-on: Revenue and paywall editor · Rules that change outcomes

See it earn in the demo Own it

Stitch Story

Tap a jacket and read every life it has lived, written by each person who owned it.

Pay per usePlans

Owners read and write chapters for free. Labels pay per tagged item for a first drop or monthly for unlimited items, featured chapters, the Friday digest and moderation, and larger brands pay for resale partner scans and authentication exports.

Fee: Signed chips cost about $1 each.
Plans: Per item $2 per tagged item · Label $200 a month · Larger brand $1,200 a month
In the $100 app: Drop progress and next action · Handoffs and clone checks · Friday digest and featured chapters
Console add-on: Revenue and paywall editor · Rules, agent log and roadmap

See it earn in the demo Own it

Strategy Heirloom

Publish your rule set as a forkable recipe, earn credit when others run it on their own capital.

Pay per usePlans

Publishing, running, forking and claiming credit are free. The owner earns a small platform fee per run week on top of each author's flat fee, plus monthly plans for authors whose recipes travel. Never a share of anyone's gains.

Fee: Platform fee of $0.05 per run week, set by the owner.
Plans: Heirloom Pro $5 a month · Author Studio $100 a month
In the $100 app: Recipe card editor · Run receipts · Copy watch
Console add-on: Revenue and paywall editor · House rules · Copy review registry, keeper log and roadmap

See it earn in the demo Own it

Temperament

Prove your trading discipline, not your profits: stops honored, sizing kept, tilt avoided.

Pay per usePlans

Keeping rules and proving it is free. Traders subscribe for weekly scans, tilt reminders and private reports; prop desks and communities subscribe to verify applicants and pay a small fee per check.

Fee: Desks pay a per check fee the owner sets (default $1).
Plans: Trader $9 a month · Desk $199 a month
In the $100 app: Sunday review with streak · Tilt night and cooldown nudge · Read only history scan
Console add-on: Revenue and paywall editor · Verifier desks and bulk checks · Scoring rules, agent log and roadmap

See it earn in the demo Own it

Tutor Twin

Turn your teaching into an AI tutor students pay per question, with you reviewing the hard ones.

Fee sharePay per usePlans

Students pay per question and the owner keeps a share; parents buy term passes; schools pay monthly for a department licence with exam locks and signed results.

Fee: Teacher share of question revenue set by the owner (default 70 percent to the teacher).
Plans: Per question $0.05 to $0.25 · Term pass $8 a term · School licence $40 a month
In the $100 app: Three step onboarding · Exam lock windows · Term pass for parents
Console add-on: Revenue and paywall editor · Twin log and roadmap

See it earn in the demo Own it

Other ways to earn

Builder and integrator fees A small cut of the flow Plans and paywalls Airdrop Regatta