Indie SaaS founders and solopreneurs run their entire business on a stack of monthly tools — hosting, a database, transactional email, an AI API bill, a couple of analytics tools, maybe some ad spend to find the first paying users. A typical solo-founder stack runs somewhere between $85 and $600 a month, and every single one of those charges needs a working card. The problem isn't finding a card — it's that the "proper" business card products built for exactly this use case won't even let a pre-incorporation solo founder apply.
SiraPay's virtual card skips that gate entirely — no LLC, no EIN, no minimum balance to prove, just a working card in minutes for whichever tools your project actually needs paid for this month.
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Get Your Virtual Card →Why Brex, Ramp, and Mercury Don't Work for Most Solo Founders
Brex requires the business to be a formally incorporated entity — LLC, S-corp, C-corp, or LP — with a valid EIN, plus at least $50,000 in cash reserves; sole proprietors and unincorporated businesses aren't eligible at all. Ramp's bar is similar: a US-registered LLC, C-corp, S-corp, or LP with an EIN, and a stable balance of at least $25,000. Mercury's card option is tied to opening a full Mercury bank account first, which carries its own onboarding and approval process.
For a solo founder who hasn't incorporated yet — or has, but doesn't have $25,000 to $50,000 sitting in a business account while still pre-revenue or early-revenue — none of these are actually usable. That leaves a personal card as the only option, which means every SaaS subscription, API bill, and hosting invoice ends up mixed in with personal spending, with no clean separation if a subscription needs to be cancelled or a card ever gets compromised.
| Feature | Brex / Ramp | SiraPay |
|---|---|---|
| Incorporated entity (LLC/Corp) required | ✅ Yes | ❌ No |
| EIN required | ✅ Yes | ❌ No |
| Minimum cash balance required ($25K–$50K) | ✅ Yes | ❌ No |
| Full KYC / business documentation | ✅ Yes | ❌ No |
| Ready in minutes | ❌ No | ✅ Yes |
What Indie Founders Actually Spend On
A typical solo SaaS stack in 2026 runs on a mix of usage-based and flat-fee tools: hosting on Vercel or Railway, a database on Supabase or Neon, transactional email through Resend or Postmark, analytics via PostHog, payments through Stripe, plus an OpenAI or Anthropic API bill for anything AI-powered. Depending on how much is self-hosted versus managed, the full stack for one project typically lands somewhere between $85 and $600 a month — closer to $20 for a bare-bones side project, well past $600 for someone actively scaling.
Beyond that core stack, most solo founders are also paying for a domain registrar, a no-code tool like Bubble or Webflow if they're not writing every line of code themselves, a newsletter platform like ConvertKit or Beehiiv if they're building an audience alongside the product, and a support tool like Crisp or Intercom once the first users start asking questions. None of these are individually expensive, but a card that fails on any single one of them — because it looks unusual to a fraud filter, or because a trial quietly converted to a paid plan — can cancel a tool a founder didn't even notice was down until a customer complains.
Running more than one side project at once — extremely common among location-independent indie hackers testing multiple ideas at once — multiplies this, and multiplies the case for keeping each project's spending separate rather than watching several SaaS bills blur together on one card statement.
How SiraPay Fills the Gap
SiraPay's privacy-first onboarding asks for basic information only — no LLC formation documents, no EIN, no proof of a minimum balance, and no facial verification. Up to five free virtual cards can be created from a single account, enough to give a hosting bill, an AI API bill, an ad account, and a personal-use card each their own number, expiry, and CVV.
Getting started:
- Sign up on SiraPay and complete the privacy-first onboarding
- Fund a card with crypto or a supported fiat top-up
- Generate a free virtual card for a specific tool or project
- Enter the card details at checkout exactly like any other Visa/Mastercard
- Repeat with a separate card for each project or major recurring bill
One clarification worth making: a virtual card is for spending, not for receiving customer payments — that side of the business still runs through Stripe or whatever processor is already handling checkout. The virtual card is what turns that revenue (or, pre-revenue, personal or crypto funds) into paid hosting, APIs, and tools without routing everything through one exposed personal card.
Keeping Side Projects Separate
Indie hackers rarely work on just one thing at a time — a validated micro-SaaS, a couple of experiments that haven't found traction yet, maybe a paid newsletter on the side. Without separate cards, it's hard to tell which project is actually profitable once hosting, API usage, and tool costs are all mixed together on one statement. Assigning one SiraPay card per project turns each one into its own mini P&L: the card statement alone shows exactly what that specific idea costs to keep running, independent of everything else.
If a project gets shut down, disabling its card takes every recurring charge with it in one step — no hunting through a shared card's transaction history to cancel five different subscriptions individually.
Isolating Runaway AI API Costs
AI API billing is usage-based, which means a single bug — an infinite retry loop, a prompt that accidentally processes a huge batch of data, a scraper hitting an endpoint too many times — can turn a normal $20 OpenAI or Anthropic bill into a several-hundred dollar surprise overnight. Putting API billing on its own dedicated SiraPay card, separate from hosting and separate from personal spending, at least contains the blast radius: a spend spike shows up immediately on one card's activity instead of getting buried in a shared statement, and that card can be disabled the moment something looks wrong without touching anything else running on a different card.
What Happens Once You Do Incorporate
None of this is an argument against eventually incorporating — once a project has real revenue, raises funding, or needs the legal protection of an LLC, forming one is still the right move, and Brex or Ramp become genuinely useful at that point for larger team spending and expense management. Until then, though, waiting to get a working card until the business meets a $25,000-$50,000 balance requirement means paying for hosting and APIs out of a personal card for months or years longer than necessary. A privacy-first virtual card works as the bridge — and plenty of founders who do eventually qualify for Brex or Ramp keep a SiraPay card around anyway, for smaller tools and experiments that don't need to touch the main business account.
Quick Answers for Solo Founders
Can I get a business virtual card without forming an LLC?
Not through Brex or Ramp — both require a formally incorporated entity with an EIN before you can even apply. A privacy-first virtual card like SiraPay doesn't carry that requirement, since it isn't structured as a traditional US business-card product tied to entity verification.
What's the minimum balance needed for a Brex or Ramp card?
Brex asks for at least $50,000 in cash reserves, and Ramp asks for a stable balance of at least $25,000. Neither is directly a revenue requirement, but in practice most pre-seed or bootstrapped solo founders don't have that much sitting in a business account yet.
Do I need a US LLC to use SiraPay for my SaaS tools?
No — SiraPay's virtual cards are issued independent of any specific country's business registration, which is part of why they work for solo founders anywhere, not just US-incorporated ones.
Can I just use a personal debit card for my SaaS tools instead?
Many founders do, out of necessity, but it means every subscription and API charge is mixed with personal spending, with no way to isolate or disable one tool's billing without touching the entire personal account behind it.
Final Thoughts
Business card products like Brex and Ramp are built for funded, incorporated companies with cash already in the bank — not the reality of most solo founders bootstrapping a stack of $10-50/month tools before their first paying customer. A no-KYC virtual card removes that gate entirely: no entity, no EIN, no balance to prove, just a working card for whatever the project needs paid today.
