AGENT COMMERCE · VALIDATE BEFORE YOU BUILD
AI agents are becoming buyers. StorefrontSignal offers three paths: buy the $39 toolkit and validate an agent-commerce idea yourself, let AI agents buy the same analysis as pay-per-use services through x402 on x402 Mall, or have StorefrontSignal build your entire x402 agent-commerce service for you, starting at $2,500.
What it is
Agent commerce is selling to AI agents and automated buyers — software that discovers, evaluates, and pays for products, data, and services without a human at the checkout.
Why validate first
Most agent-commerce ideas fail on margin, not technology. Check demand, landed cost, and margin before you spend on endpoints, listings, or a build.
How it fits with x402
x402 is how agents pay you. Validation is how you decide what is worth selling. Do the second before the first.
HOW IT FITS TOGETHER
Validate it yourself with the toolkit, let AI agents buy the analysis as pay-per-use services, or have StorefrontSignal build your entire x402 setup for you. All three run on the same method and the same x402 cycle.
Layer 1 · Human / operator
The Agent Commerce Validation Toolkit Bundle is an ordinary $39 digital download sold directly on StorefrontSignal. It teaches the opportunity, landed-cost, margin, and viability method you can run yourself.
See the toolkitLayer 2 · AI agents
Commerce Opportunity Check, Landed Cost & Margin Analysis, and the Full Commerce Viability Report are not Shopify products. They are agent-facing services an AI agent calls and pays for per use through x402, with x402 Mall handling discovery and access. Commerce Opportunity Check is live now; the other two are coming soon.
See the agent servicesLayer 3 · Done for you
For businesses, creators, developers, API owners, and service providers who want to sell to AI agents through x402 without handling the technical setup. Offer design, endpoint, payments, discovery files, x402 Mall listing, and handoff.
See the Launch ServiceDIGITAL DOWNLOAD · BUY NOW
Validate an agent-commerce idea yourself: work through landed cost, contribution margin, demand and supplier checks, stress tests, and kill criteria in the toolkit PDF, then write up the go / no-go case in the opportunity brief.
Available now
Digital download$39
The self-serve version of our validation services. Four files: two PDFs that hold the calculations, frameworks, and worksheets, plus an AEO/SEO content file and a machine-readable opportunity schema.
What’s inside
Digital product — all sales final, except where otherwise required by applicable law.
AGENT-FACING SERVICES · AVAILABLE VIA X402
These three services are built for AI agents, not for a shopping cart. Commerce Opportunity Check is live now: an agent discovers it on x402 Mall, sees the price and requirements, pays $0.50 per request through x402, and receives the analysis back as a structured result. Landed Cost & Margin Analysis and the Full Commerce Viability Report follow the same path and are not live yet.
Live on x402 Available via x402 Step one
Access$0.50 per call via x402
A focused review of one product, dataset, tool, or service: is there agent demand, how would agents find and evaluate it, and what would they pay? You get a clear read before spending on a build.
Agent receivesA structured opportunity assessment with a recommended next step.
Live: an agent discovers this service on x402 Mall, pays $0.50 per request with USDC on Base, and receives the structured opportunity brief.
Coming soon Available via x402 Step two
AccessPay-per-use via x402 · price set at launch
We model the real cost of every agent-driven sale — goods, fulfilment, payment and network fees, returns, and overhead — and show the margin left at realistic prices and volumes.
Agent receivesA landed-cost model and margin summary the agent or its operator can reuse as prices change.
Once live: an agent submits cost, price, and volume inputs and receives a landed-cost and margin model as structured data.
Coming soon Available via x402 Step three
AccessPay-per-use via x402 · price set at launch
Opportunity, landed cost, margin, competition, and agent-readiness combined into one report with a go / no-go recommendation and, if go, a scoped path to an x402 build.
Agent receivesA complete viability report and a recommended implementation scope.
Once live: an agent submits the full input set and receives a complete viability report with a go / no-go recommendation.
Services marked “Coming soon” are not yet callable. Final x402 prices are shown only once set. Humans who want the same analysis today can use the toolkit above or start Project Discovery.
DONE-FOR-YOU · BY CONSULTATION
For businesses, creators, developers, API owners, and service providers who want to sell to AI agents through x402 but do not want to handle the technical setup themselves. StorefrontSignal scopes, builds, tests, lists, and hands over a working agent-commerce service.
Done for you Built on x402
Investment Starting at $2,500
Best fit: you already have a service, dataset, tool, API, or expertise worth selling, and you want it callable and payable by AI agents without becoming an x402 engineer.
What StorefrontSignal handles
Scope and final quote depend on the complexity of your existing service, API, infrastructure, and integrations. “Starting at” covers a single, clearly defined agent-facing service built on standard infrastructure; it does not include unlimited custom development. Every engagement begins with Project Discovery and a written proposal.
Third-party costs such as hosting, domains, model or API usage, blockchain and network fees, Shopify or app subscriptions, and other paid services are separate unless specifically included in the proposal.
THE X402 CYCLE
x402 lets software pay for access the moment it needs it. Here is the loop an AI agent runs when it uses a StorefrontSignal commerce analysis service.
The agent finds a StorefrontSignal commerce analysis service listed on x402 Mall, the directory for x402-enabled services.
The listing and the endpoint state exactly what the service costs per use and what inputs it needs. No account or invoice.
The agent pays for that single request with an x402 payment, settled on the spot.
StorefrontSignal returns the requested commerce analysis as a structured result the agent can read.
The agent uses the result to continue, halt, or hand the decision to a human for funding or approval.
Live on x402 Mall
Commerce Opportunity Check is live on x402 Mall at $0.50 per call. Landed Cost & Margin Analysis and the Full Commerce Viability Report will be listed the same way when their endpoints are live.
NEW TO X402? · START HERE
x402 is the open standard that lets AI agents pay for access to your website, API, or service on the spot. These existing StorefrontSignal resources explain it and show how to build and list an x402 offer.
Overview
What x402 is, why agents are becoming buyers, and the guide, build, and listing paths StorefrontSignal offers.
Read the x402 overviewStart here
Digital download$29
A beginner-friendly introduction to x402, AI agents, and machine-paid access.
View the guideBuild your offer
Digital download$79
Step-by-step implementation: planning, pricing, endpoints, testing, and launch.
View the guideGet discovered
The directory where humans and AI agents find x402-enabled APIs, agents, and pay-per-use services.
Explore x402MallQUESTIONS
Agent commerce is selling to AI agents and other automated buyers. Instead of a person browsing and checking out, software discovers your offer, evaluates it against a task, and pays for it — often through a machine-payable standard such as x402.
Four files in one download: the Agent Commerce Validation Toolkit PDF (landed-cost calculations, contribution-margin work, the viability framework, supplier verification, demand validation, evidence labels, stress testing, kill criteria, funding readiness, and related worksheets), the Agent Commerce Opportunity Brief PDF, the StorefrontSignal Agent Commerce AEO/SEO Content file, and a machine-readable Agent Commerce Opportunity JSON schema. The worksheets live inside the PDFs; they are not separate products.
Commerce Opportunity Check is live: AI agents find it on x402 Mall and pay $0.50 per call through x402 (USDC on Base). Landed Cost & Margin Analysis and the Full Commerce Viability Report are marked “Coming soon” and cannot be called yet; their prices will be shown only once set. If you want early access to those, start Project Discovery and tell us which service you are interested in.
Through x402, pay-per-use. Each service is listed on x402 Mall. An agent discovers the listing, reads the price and required inputs, pays for one request with an x402 payment, and receives the analysis back as a structured result. There is no Shopify checkout involved; the toolkit is the human product, the services are the agent product. Commerce Opportunity Check is live today at $0.50 per call.
That is the Agent Commerce Launch Service, starting at $2,500. We clarify the offer, design the agent-facing API, build and deploy the endpoint, set up x402 pay-per-use payments and your payTo wallet, publish the discovery files and documentation, test a real payment, submit the x402 Mall listing, integrate it with your website, and hand over verification and documentation. Final scope and quote depend on the complexity of your existing service and integrations, and third-party costs are separate unless the proposal includes them. Start with Project Discovery.
No. The toolkit helps you decide whether something is worth selling to agents at all. x402 is the payment layer you add once the numbers work. If you are new to x402, start with the x402 overview or the Quick Start Guide.
The toolkit is a digital download delivered by email after payment. All sales are final, except where otherwise required by applicable law. If you have trouble receiving or opening your files, email storefrontsignal@gmail.com with your order number and we will restore or reissue access.
Start Project Discovery and we’ll tell you honestly whether the toolkit is enough, an agent service fits, or the Launch Service should build it for you.
The toolkit lives in the Agent Commerce collection alongside our x402 guides and implementation services. Validate first, then build.
