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Reserve · refundable depositPRODUCTIVITY

Only If You Do

A coordination game: commit to a group action that only happens if enough people commit too.

Try it live, free
$99one time, base tier
Built on order. Reserve it today for a $25 refundable deposit, pay the balance when it is delivered. Delivery: same day after the base build exists.
Reserve for $25Want it fully custom? From $700 · talk to us
PortsBase · Optimism · Polygon
KindCommons
OwnerYou, on your wallet and git
Picture this

Who it is for

Fifty renters want to switch to a greener energy co-op but nobody moves first. Stag Hunt collects conditional commitments that trigger only at 40 signups, and when the threshold hits everyone is notified to act together.

Two ways to own it

What you get

Base$99
$25 deposit to reserve

Pledge page, threshold contract, optional deposit, trigger notifications, success archive.

  • You choose: chain
  • You choose: name and logo
  • You choose: accent color
  • You choose: threshold
Customfrom $700
Built around you

Reshape it entirely: new features, your flows, your brand end to end, integrations you need. We scope it with you.

  • Everything in Base
  • Custom features and design
  • Priority build
Why it is new

What exists today, and what this does differently

What is new

Threshold commitment is a known mechanism; a consumer app for non-financial group actions is rare.

Closest things out there

Assurance contracts exist for crowdfunding (BUND on Bitcoin, BCH covenants) and the pact repo implements mutual assurance contracts, mostly as dev projects.

Checked with web searches in October 2026. A search is not proof that nothing similar exists, and the market moves fast, so we recheck before every build.

What it unlocks

The human in it

Your courage scales with everyone else's.
The Regatta Board

Races it can enter

grant · Gitcoin · upcoming
Gitcoin Grants rounds
quarterly-ish rounds; next round dates unknown
Official page ↗

Coordination public good if open source

Their rule on existing code: Existing open-source projects OK (generally required)
What you own

The whole app, not a starter kit.

The complete Only If You Do app: neighbours pledge to a group action that only happens if enough of them pledge too, with a live block count, a same minute trigger, rally tools, receipts and a paywall built in.

Base price · $99

The user app, complete

Every buyer gets the same finished app. Basic branding and copy changes come through a quick form.

Three step onboardingHome
Shown once: nobody has to go first, watch the block light up, same minute same message.
Live block and next actionHome
Illustrated block whose windows light per pledge, the count against the threshold, and one clear next step.
Conditional pledgePledge
A signed, gas free promise that only counts if the threshold is met by the deadline. Withdraw any time before.
Threshold trigger and confirmationPledge
When the count is hit, every pledger gets the same message at the same minute, then ticks off the steps and confirms they acted.
Expiry with no exposurePledge
If the block falls short, nothing happens, nobody acted alone and any deposit returns.
Rally board and nudge draftsRally
Pledges by floor, and helper drafted nudges in English, Polish, Urdu and Yoruba that the organiser sends.
Printable QR door notesRally
One note per quiet flat in 4 languages. Gated behind Organiser.
Private door knock listRally
Doors that have not opened the link, visible only to the organiser, never who pledged.
Start a hunt and vote on the nextHunts
Name, action, threshold and deadline, with a block vote. Deposits and a second active hunt are gated behind Organiser.
Block page archiveHunts
Every hunt the building has run, won or missed, so new tenants see what the group has done.
Onchain receiptsReceipts
Pledges, triggers and plan payments, each marked onchain or offchain, with what never goes onchain spelled out.
Plans, alerts and privacyMe
Pricing from the owner paywall through USDC checkout, trigger channels with SMS gated, and name visibility off by default.
Open the full app demo
Add-on

Owner console

Your admin side: revenue, paywall editor, users, rules and the agent log.

Revenue and paywall editorRevenue
MRR, incoming USDC payments, payouts, accepted payment methods and live editing of tier names, prices and gates.
Buildings and duplicate reviewBuildings
Every building's hunt and count, new building approvals and a queue for suspected duplicate pledges.
Rules, agent log and roadmapRules
Deposit cap, shortest deadline, withdrawals, quiet hours and gas sponsoring; plus the Agent log that runs each evening and the priced Roadmap.
Top-up

Growth and referrals

Referral and growth mechanics, switched on when you are ready to grow.

Block page loop and referralsGrowth
Publish triggered hunts to the public archive, cohort charts, pledge sources and organiser to organiser referrals.
The money path, built in

How it earns for you

Neighbours always pledge free. Organisers pay a small monthly plan for the tools that bring a block together, and unions, co-ops and councils pay for many buildings. Deposits sit in the contract and are never revenue.

NeighbourFreeOne active hunt, up to 60 pledges, email and push triggers, receipts and the block page
Organiser$6 a monthUnlimited hunts, refundable USDC deposits, SMS triggers, printable QR door notes in 4 languages
Network$49 a monthFor unions, co-ops and councils: many buildings, shared templates, a dashboard and archive exports

No fee on pledges or deposits. Gas (well under 1 cent per pledge on Base) can be sponsored by the owner; SMS is passed through at cost.

Prices are yours to set. Illustrative, not a promise of income.

Growth loops, built in

How it spreads

  • Block page loop: every triggered hunt publishes an archive page the next building sees
  • Share card after acting: 40 flats, same night, nobody went first
  • Next hunt vote keeps every pledger in the building active
  • Organiser to organiser referrals worth a free month of Organiser for both
  • Helper drafted nudges in 4 languages that neighbours forward to their group chats
Roadmap · build the next phase with us

Where it goes next

v1 included
The full hunt app
  • Pledge page, threshold contract and same minute trigger
  • Rally tools, nudge drafts and door knock list
  • Start hunts, votes and the block page
  • Receipts with onchain and offchain clearly marked
  • Plans, USDC checkout and paywall
Included
v2
Partner templates and network portal
  • Shared hunt templates for co-ops and unions
  • Bulk household list import and building onboarding
  • WhatsApp Business and SMS broadcast integration
  • Optimism and Polygon deployments
Add-on from $400
v3
Councils and open standard
  • Council and landlord evidence packs from the archive
  • Ward level hunts across many buildings
  • Open pledge schema other apps can read
  • Multi language voice notes for door knocks
Add-on from $900
For investors and grant reviewers

The pitch, ready

Conditional pledges for group action: commit to something that only happens if enough neighbours commit too.

Problem: Good group moves die because nobody wants to go first: switching a block to a community energy co-op, reporting damp together, joining a local scheme. Each person would act if enough others did, but there is no safe way to say so.

Solution: A pledge page per hunt backed by a small threshold contract. One pledge per household, an optional refundable deposit, and a single trigger that tells every pledger at the same minute. Names and flat numbers stay offchain.

Why now: Embedded email wallets, near free transactions on Base and small models that draft multilingual nudges make an assurance contract usable by tenants who have never touched crypto.

Market: Tenant unions, housing associations, energy co-ops, parent groups and councils who need many people to act together, starting with renters in dense housing.

The ask: Pilot partners: one tenants' union and one community energy co-op, and grant funding from public goods rounds such as Gitcoin.

Funding is never guaranteed. Check each program's rules.

For hackathons and demo days

Your 2 minute demo

  1. Home: meet Nkechi, a night nurse in flat 2C of Calder House, Hulme. 27 of 50 windows are lit; the co-op needs 40.
  2. Pledge: read the pledge word for word and sign it free. Her window lights: 28 of 40.
  3. Rally: floors 4 and 5 are quiet. Draft a nudge in Urdu, then see door notes locked behind Organiser.
  4. Owner Agent: run the next evenings. On day 13 the count hits 40 and every pledger hears at 20:02.
  5. Pledge: tick the 3 switch steps, confirm, and share the card: 40 flats, same night, nobody went first.
  6. Hunts: vote on the bike shed and see the block page with every hunt, won or missed.
  7. Owner Revenue: change the Organiser price in the paywall editor and preview the user Plans sheet.
  8. Owner Buildings and Roadmap: merge a duplicate pledge, then request the v2 partner templates.

Many hackathons require code written at the event. See the Regatta Boardfor each race's rule.

Make it entirely yours

Custom work from $700: your own hunt types and pledge statements, integrations with a co-op or union CRM, extra languages, or a council branded deployment. Scoped on a call.

Custom from $700
BLUEPRINT

Why it matters and how it really works

The need

Lots of good group moves die because nobody wants to go first: switching a block to a community energy co-op, reporting damp together, joining a local scheme. Each person would act if enough others did, but there is no safe way to say so.

What exists and what is new

Threshold or assurance contracts are a known mechanism. Crowdfunding uses them, BUND on Bitcoin and BCH covenant designs implement them, and the open source mutual-assurance-contract repo shows the pattern on Ethereum, mostly as developer projects. What is less common is a plain consumer app for non-financial group actions, with one pledge per household, an optional refundable deposit and a single shared trigger moment. Research verdict: rare, medium novelty; the mechanism itself is not new.

The data it runs on

The pledge statement, threshold and deadline; one pledge per household (checked against an organiser's list, never published); optional deposit escrow; the trigger or expiry event; per-person confirmations of acting. Names and flat numbers stay offchain with the organiser.

1.The mission

Make it safe to be brave together, so groups do the things every member already wants.

2.Why people can't resist it

No risk in going first Your pledge only counts if the group shows up. If it falls short, nothing happens and any deposit comes back.

Watch the block light up Every pledge lights a window. Seeing neighbours commit is what tips the rest.

Same minute, same message When the number is hit, everyone is told at once, with the exact steps. Momentum does the rest.

3.How it works for real

Pledge page and identity: A shareable page per hunt. Privy email or phone login creates an embedded wallet on Base; no seed phrase. One pledge per household, checked against the organiser's list.

Threshold contract: A small assurance contract on Base (also deployable to Optimism or Polygon) records pledge counts, the threshold and the deadline, and emits a Triggered or Expired event.

Optional deposit: Refundable USDC deposits held by the contract: returned to all on expiry, returned to each person when they confirm they acted, kept only if they pledged, it triggered and they never acted.

Nudge agent: A cheap model tier (for example Claude Haiku or a comparable OpenRouter model) drafts reminders, translations and door notes, and spots duplicate pledges. It cannot pledge or move funds.

Notifications: On trigger, one broadcast via email, SMS (for example Twilio) and web push with the exact steps, sent at the same minute to everyone who pledged.

Success archive: Each finished hunt is saved to the block page with its outcome and receipt hashes, so new residents see what the group has done.

4.Cost per use and pricing

Per hunt of 50 households on Base: pledge and trigger transactions cost well under 1 cent each, so under $0.50 total, usually sponsored by the owner via a paymaster. Nudge drafts with a small model are a few cents. SMS is about $0.01 to $0.08 per message depending on country, so one trigger to 50 people is up to about $4. A tenants' union running 20 hunts a month would spend roughly $40 to $90.

Neighbour Free
One active hunt, up to 60 pledges, email notifications.
Organiser $6 a month
Unlimited hunts, deposits, SMS triggers, printable QR door notes in multiple languages.
Network $49 a month
For unions, co-ops and councils: many buildings, shared templates, a dashboard and exports.

5.Growth loop

Every successful hunt produces a share card and an archive page. Partner organisations (energy co-ops, tenant unions) bring hunts to new buildings, and each pledger sees the next hunt in their block.

6.Risks and guardrails

Deposits and regulation: Holding money can raise consumer and payments rules. Keep deposits optional, small and refundable, and get advice before charging fees on them.

Fake or duplicate pledges: One pledge per household against an organiser list, with deduplication. A threshold reached by fakes is worse than none.

Privacy: Who lives where and who pledged stays offchain. Only counts and hashes are public.

Pressure: Social pressure can tip into coercion. No public names by default, and anyone can withdraw before the deadline.

Trigger without follow through: Reaching the number does not mean people act. Track confirmations and make the action itself as short as possible.

7.Build order

  1. Pledge page with statement, threshold and deadline
  2. Threshold contract with Triggered and Expired events on Base
  3. Household check against an uploaded list
  4. Trigger broadcast by email and push
  5. Optional refundable USDC deposit
  6. Nudge agent for reminders and door notes
  7. Success archive per building

8.Where this is going

  1. Now
    One block, one hunt: 40 flats switch energy supplier the same night.
  2. Next
    Tenant unions and co-ops run hunts across dozens of buildings with shared templates.
  3. Later
    Councils and community groups use conditional pledges for repairs, schemes and local votes.
  4. The big one
    A normal way for any group to act together, where nobody has to risk going first.

Costs and tools are estimates at the time of writing. General information only, not legal or financial advice.

OWNER PLAYBOOK

Own it, then chart your voyage

NRevenueVentureBuilder statusHackathonsProductivityInspire othersPartnershipsPortfolioAgencyONLY IF YOU DO

Nine routes from one vessel. Tap a port to open its chart.

Why own Only If You Do

Only If You Do turns "I will if you will" into a contract: people commit to a group action that only fires when enough of them commit too. When you own it, every pledge page carries your name, the threshold contract is deployed from your wallet, and every campaign that tips over its threshold becomes part of your public onchain record. Run on someone else's tool and the communities you rally belong to their brand; run on yours and the organizers come back to you.

What’s stopping you?

“I can't code.”

You do not need to. The pledge page, threshold contract, optional deposit and trigger notifications ship ready. Your job is choosing the first group action and the number that makes it real, such as 40 renters or 25 parents. If you can write a WhatsApp message, you can run a campaign.

“What if the threshold never hits?”

Then nobody is exposed, which is the whole point of the mechanism. Deposits return and the archive shows an honest miss. Start with a small, winnable threshold (12 people for a shared bulk order) so your first campaign succeeds, then raise the stakes.

“Is it really mine?”

Yes. The contract deploys from a wallet you control, the domain and branding are yours, and the success archive lives at your address. DEPLOYR does not hold your keys or your users' deposits.

“Is holding deposits legal where I live?”

Deposits are optional, and many campaigns work with no money at all, just a signed commitment. If you do take refundable deposits for purchases or fundraising, rules differ by country, so check a local lawyer or your regulator's guidance before taking money for others. Start with no-deposit campaigns while you learn.

“What if people commit and then do not follow through?”

Some will. That is why the optional deposit exists: a small refundable stake, returned when people act, filters out casual clicks. Even without it, public commitments at a threshold move far more people than a vague group chat poll.

The million-dollar ladder

You earn as the coordination desk for groups that need to move together: a flat fee per hosted campaign for organizers (tenant unions, school parent groups, buying clubs, climate co-ops), a monthly plan for organizations that run campaigns all year, and an optional small percentage on successful group purchases where deposits convert into an order. Revenue comes from organizers, never from the people pledging.

$290
$5,880
$29,700
$85,000
First 10 organizers
10 organizers
$29 per campaign
Repeat local groups
120 organizers
$49 per month
Associations and co-ops
300 organizations
$99 per month
Networks and white label
170 networks
$500 per month
  • Publish every successful campaign in the success archive and send it to the next organizer as proof.
  • Sell group-buy campaigns where deposits become orders, and take a small disclosed fee on successful ones.
  • Offer a white label plan to tenant federations, PTA networks and co-op associations that run many chapters.
  • Pair with a recurring USDC plan so organizations pay monthly without invoices.

Illustrative stages, not a forecast. Results depend on you and the market; nothing here is guaranteed.

Pick your destination

Grow it to a million-dollar app
Every organizer has a "nobody wants to go first" problem, and you can charge to solve it per campaign. The first win is a story you can sell to the next ten organizers.ARRIVE: 10 paying organizers and at least 3 campaigns that crossed their threshold, listed in your success archive.5 moves · first one within the hour →
Raise for it
Assurance contracts are a classic public goods coordination tool, which makes this a natural fit for public goods funding rounds and coordination-focused grants.ARRIVE: One grant or funding round application submitted with live campaign data, and a reply received.5 moves · first one within the hour →
Become a real builder on a chain
Each campaign is a real contract with real participants, which gives you a steady, honest onchain footprint on Base, Optimism or Polygon.ARRIVE: Threshold contract deployed from your own wallet, verified on the block explorer, linked from a builder profile, with at least 50 real pledges.4 moves · first one within the hour →
Win with it at hackathons
Coordination and public goods tracks love assurance contracts, and a live tool with real campaigns stands out from weekend prototypes.ARRIVE: Entered one hackathon with a track that fits, submitted a demo, and got judge feedback.5 moves · first one within the hour →
Run your own work on it
You spend hours chasing people in group chats. A threshold page replaces the chasing with one link and an automatic "we are go" message.ARRIVE: Your next 3 group decisions run through a pledge page instead of a chat poll, saving at least 2 hours of follow ups each.4 moves · first one within the hour →
Get your people moving
The app is literally about courage scaling with others. It is the cleanest way to get a class, team or community to act instead of watch.ARRIVE: One community action you lead crosses its threshold, and at least 30 people act together.4 moves · first one within the hour →
Partner with founders and projects
Co-ops, DAOs and community projects all need first movers. Your app is a neutral tool they can use without building their own.ARRIVE: One partnership where another project runs a campaign on your app, with both logos on the page.4 moves · first one within the hour →
Prove your skills with it
Running coordination campaigns shows product, community and smart contract skills together, which is exactly what community, growth and product roles want to see.ARRIVE: A one-page case study with real numbers that you send to 10 employers or clients.4 moves · first one within the hour →
Sell it as a service
Organizers want outcomes, not tools. You can sell campaign setup and management as a done-for-you service.ARRIVE: 3 clients paying for a managed campaign, at least $300 each.4 moves · first one within the hour →
No budget yet? Be a CEO anyway at CEOism, then come back for your vessel. ceoism.com ↗
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