New startup ideas · Consumer and commerce · Commerce and marketplaces

startup idea

Shelfwire

One API that makes any small store's catalog readable by AI shopping agents.

Shelfwire ingests a merchant's product catalog, inventory and policies once and serves a hosted, always-current machine endpoint per store: structured product data, availability, shipping and returns terms, and checkout handoff, in the formats AI shopping assistants and marketplace crawlers consume.

Infrastructure and APIs
Small business
$1-10B market
Collapses a cost 10x
Global from day one

4/5

venture judge

similar startups, last 2 years (4 all-time)

96%

of 4 nearest real companies still alive

yes

1 matching federal grants and programs

Direction supported by government programs and grants

Test it before you build it

$900 · 3 weeks · 20 prospects

For $900 and 3 weeks, prove that Shopify agencies will prepay $400 a month for agent readability before the platforms ship it free.

Riskiest assumption · An agency running 20-100 Shopify stores will pay real money this quarter for agent readability, even though no client has a budget line for it and Shopify and Stripe are visibly mid-ship on native agent endpoints.

1Focus group: who and where

Owner or head of delivery at a US Shopify development or growth agency with 20-100 active client stores, currently fielding client questions about why their products never show up in ChatGPT or Perplexity shopping answers.

where to find 20 · Shopify Partner Directory filtered to US agencies (directory); Clutch.co's Shopify developers list, which shows client counts (list); the Partners board on community.shopify.com (community); Shoptalk Fall in Chicago in October if the pipeline needs a push (event).

2Sell first, build later

Founding-agency package: Shelfwire makes your 10 highest-GMV client stores fully readable by AI shopping agents - one hosted endpoint per store with structured catalog, live inventory, shipping and returns terms - live within 30 days of payment.

the ask · $400 per month per agency covering 10 stores ($40 per store), founding rate locked for 12 months

a real yes · A paid first-month invoice on a signed one-page order form with a go-live date is a yes; 'we'd install this for clients', unpaid trials, and intros to other agencies are not

3Small experiments

The first one attacks the riskiest assumption; each ends with a number that says whether to run the next.

1. Priced pitch to twenty agencies
$350 · 12 days
Pull 60 US agencies from the Shopify Partner Directory and Clutch, send the outreach script, and book 20-minute calls. One founder runs every call from a one-page founding-agency offer with the $400 a month price printed on it, and asks for the invoice on the call, not after.
keep going if · 8 of 20 calls end with the agency asking for the order form or the invoice
2. Live invisibility demo
$300 · 7 days
Hand-build the hosted endpoint for 3 volunteer client stores (scripts plus static hosting, no product) and record side-by-side ChatGPT and Perplexity shopping queries where the client's products are missing today but findable through the structured endpoint. Use the recording in every call and on the landing page.
keep going if · In 6 of 10 demos the agency names a specific client it would enroll first
3. Founding invoice close
$250 · 10 days
Send the one-page order form and a $400 first-month invoice to every agency that asked; follow up twice within a week. The landing page below backs the email so the owner can forward it inside the agency.
keep going if · 4 of 20 pitched agencies pay the $400 invoice

4Collect a deposit up front

Tesla took $1,000 refundable reservations for the Model 3 and $100 for the Cybertruck before building either: the deposit is the measurement, not the revenue.

$400

per prospect, refundable

how · First month prepaid by invoice: the agency signs a one-page founding-agency order form and pays a $400 invoice by ACH or card. Invoicing fits because agencies pay vendors on invoice, not through consumer checkout pages, and a paid invoice is the cleanest proof this buyer exists. set up: Stripe Invoicing ↗

what it reserves · One of 10 founding-agency slots, the $40 per store rate locked for 12 months, and endpoints live within 30 days of payment

refund · Refunded in full if the 10 endpoints are not live within 30 days of payment; after go-live the agency can cancel any month.

target · 4 paid invoices from 20 pitched agencies within 21 days

Go: build it if

4 or more of 20 agencies pay the $400 first-month invoice within 21 days, putting 40+ client stores under contract.

Kill: stop if

0-1 paid invoices from 20 pitched agencies within 21 days, even after every agency has seen the live before/after demo.

5 Scripts to run itoutreach message, landing copy, deposit terms · click to open

outreach message

You run a book of Shopify stores, and right now most of their catalogs are invisible to ChatGPT and Perplexity when shoppers ask them what to buy. I'm building Shelfwire: one hosted endpoint per store serving structured catalog, stock and returns data that shopping agents can actually read, installed across your whole client base at once for $40 a store. I'll show you live queries where your clients' products don't show up today. Do you have 20 minutes this week?

landing page

Make every client store readable by AI shopping agents $400 a month covers your first 10 stores, live in 30 days, founding rate locked for a year Book a founding-agency slot - 10 agencies only

deposit terms

Your $400 covers the first month for up to 10 client stores at the founding rate of $40 per store, locked for 12 months, with all endpoints live within 30 days of payment. If we miss the 30-day go-live, you receive a full refund. After go-live there is no contract; cancel any month.

Would you run this test?

One tap. The yes-share feeds the Demand pillar of this idea's score; nobody sees who answered.

Budgets are out-of-pocket estimates for a team of one to three, US market. Size the deposit to the deal, and check the terms before taking money in a regulated line.

Scorecard

One score that balances how trendy the idea is, the demand for it and its potential for 100x, with competition measured relative to every other idea in the catalog. Recent startup trends first, government priorities second.

Idea Score, 0-100 · raw 23.7 x 1.61

Open

competition: more crowded than 6% of ideas · headwind x0.97

+0.8

government priorities, secondary (1 matching grants)

Trend

Is the wave forming now? 2025-26 entrants vs 2023-24, rounds since 2025, the sector's live-batch direction, the 2026 trend analyst.

Entrants 2025-26 vs 2023-24 (similar companies)3
Rounds announced 2025+ in the sector8
Sector direction (live batch)0
2026 trend analyst50

Demand

Does anyone want it? YC's current RFS, companies already paid for something similar, the operator judge, founders' yes-rate in decks, readers who would run the test.

YC asks for it (current RFS: idea / sector)0
Someone already pays (similar companies, recent / all-time)33
Operator judge: real pain25

100x potential

Can it return a fund? The venture judge (double weight), market-size and moat axes, neighbours still alive, the technologist judge.

Venture judge75
Market size axis33
Moat axis80
Neighbours still alive6
Technologist judge0

Score = 100 x cbrt(Trend x Demand x 100x) x (1 - 0.5 x crowding) + government bonus (max 5), calibrated so the 95th-percentile idea scores 90 (order never changes). A geometric mean: a weak pillar cannot be papered over. Percentiles are among the 272 ideas in the catalog; the terms matched were store, catalog, readable, ingests, merchant, inventory, policies, once.

The idea in full

What: Shelfwire ingests a merchant's product catalog, inventory and policies once and serves a hosted, always-current machine endpoint per store: structured product data, availability, shipping and returns terms, and checkout handoff, in the formats AI shopping assistants and marketplace crawlers consume. Merchants pay a low monthly fee plus usage; the engineering work that a brand would otherwise repeat for each new channel collapses into one integration. It ships as apps inside e-commerce platform stores and as a white-label API for agencies and platform partners who install it for their whole client base.
Why now: The radar's own measurement says the problem is real: average AI-visibility across 1504 tracked commerce companies is 45/100, meaning most storefronts are half invisible to machine readers. Wildcard (yc W25) is already selling AEO/GEO for e-commerce and retail and Quissly Inc. (500global 500G Eurasia 8) is rebuilding e-commerce search, while Dome (yc F25) showed the unified-API pattern for a fragmented endpoint landscape.
Wedge: first customer and entry point: Three agencies that each run fifty Shopify stores: give them a one-click bulk install and revenue share, and they carry the first two thousand merchants.
Path to 100x: Catalog and channel feed infrastructure is a $1-10B market today, and the cost collapse is that one endpoint replaces per-channel feed engineering for every merchant, at software margins from day one and globally with no regulatory gate. The moat is distribution: default placement in platform app stores plus agency bulk installs means Shelfwire is already present when a merchant needs it, and per-call pricing scales with agent traffic rather than merchant count.
Ceiling: If platform-native endpoints arrive first, or agent traffic stays a rounding error against paid search, per-merchant revenue stays too thin to clear $1B.
Closest real companies, as the generator saw them: Wildcard sells optimization outcomes to individual retailers; Shelfwire sells the plumbing underneath at a per-call price and distributes it through platform app stores and agencies rather than store by store. Quissly Inc. builds the search experience on the buyer side and would be a consumer of these endpoints; Signals works a messaging channel, not catalog structure.
Main risk: The major commerce platforms ship native agent endpoints for free and the entire layer disappears into the platform.

Five judges

Each judge scores every idea in the catalog with a named rubric; the venture judge decides whether a card is shown at all (4-5 is venture-grade).

Venture investor
4/5
Capital-light per-call pricing that scales with agent traffic, not merchant count, is the rare software-margin bet on a genuinely new channel.
Bootstrapper
4/5
Capital-light hosted endpoints, revenue within a year, and three agencies carrying two thousand Shopify stores is exactly a two-person distribution motion.
Operator
2/5
No merchant has a budget line for agent readability today, and the value depends on AI shopping traffic that is still a rounding error.
Technologist
1/5
A hosted catalog endpoint is precisely the layer Shopify absorbs in one release, as the card's own stated risk concedes.
Risk
1/5
Every merchant, every install and every dollar sits on top of Shopify-class platforms that can ship native agent endpoints for free.
trends
3/5
Agent traffic 8x makes this sellable now, but Stripe's ACP suite already covers WooCommerce, BigCommerce, Wix and Squarespace, so the incumbents are mid-ship.

Similar startups in the directory

Companies whose pitch matches most of the idea's terms (store, catalog, readable, ingests, merchant, inventory, policies, once): 4 all-time, 0 from the last two years. Same matching as Idea Check.

MightyAIspc · 2024 · Agent infrastructurealive
Get your brand discovered by AI
Flagshipsequoia_arc Arc 2022 · 2022 · Commerce and marketplacessite down
Flagship is helping creator set up their own curated boutiques, without hassle.
Spocketplugandplay · Commerce and marketplacesalive
Dropshipping marketplace serving 40,000 merchants
Bumpaplugandplay · Commerce and marketplacesalive
Mobile-based inventory management and online store builder designed for the African market.

Run this as an Idea Check →

The generator's reference companies

Real companies the model named as closest when it wrote the card, with their fate. A check mark is a company the radar could verify in its directory.

Public money in this direction

US federal grants, SBIR/STTR awards and open opportunities from the radar's public-money feed, matched to the idea's terms; the sector totals give the context.

grants and programs matching the idea

startup-relevant grants in Commerce and marketplaces

$20M

awarded in the sector, tracked

opportunities open now in the sector

Category II: Transitioning the National Science Data Fabric Pilot into a National Operational Cyberinfrastructure and Service for Democratized, AI-Driven Scientific Discoveryawardmedium relevance
National Science Foundation · NAIRR-Nat AI Research Resource · $9M · posted 2026-05-22

All public money by sector →

Market signal

What the radar sees in Commerce and marketplaces: new companies by cohort year, the forming YC batch, and outcomes since the February snapshot.

Commerce and marketplaces · 145 → 119 → 130 → 67 → 34 new companies 2022 → 2026 · 87% aliveYC F26 live: 0 in this cluster, 0% of the batch (was 2% in S26)Since February, of 419 YC companies here: 4 acquired, 7 shut down, 28 rewrote their pitch

Commerce and marketplaces: companies, trend and grants →

Design attributes

The card is one cell of a designed set: every axis below was chosen before the text was written, and the text had to realize it.

Buyer: Small business
Business model: Infrastructure and APIs
Path to 100x: Collapses a cost 10x
Market size: $1-10B market
Capital intensity: Capital-light (software margins)
Speed to revenue: Revenue within a year
Technical depth: Real engineering
Go-to-market: Partners and channels
Moat: Distribution moat
Geography: Global from day one
Regulation: Unregulated
Vibe: Boring business