For SaaS & developers

Build billing without building billing.

REST API, webhooks, embeddable checkout, and API key management — everything you need to accept card and crypto payments without spinning up a payment processor.

REST API + WebhooksEmbeddable widgetNo merchant account
vulta.one/pay/saas-pro-planActive
Pro plan — monthly
$49USD
R
Riku Sato
Tokyo, Japan
Pay $49 USD
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The problem

Why payment infrastructure keeps failing people like you.

01

Stripe setup is a project by itself.

Webhooks, idempotency keys, refund logic, payout schedules, disputes — implementing payments properly takes weeks. Then you have to maintain it forever.

02

Crypto-native users churn when they hit a card-only checkout.

A growing share of developer tooling customers holds stablecoins and prefers to pay that way. A card-only checkout is a closed door.

03

Bank accounts, registered entities, tax IDs — just to get paid.

Traditional payment processors require a full business setup. If you're early-stage or operating across jurisdictions, this is a wall.

How it works

From zero to getting paid — in under ten minutes.

01

Create an API key and configure your webhook endpoint

Generate API keys from the dashboard. Point Vulta at your HTTPS endpoint. We'll sign every payload so you can verify origin and prevent replay attacks.

02

Embed checkout or create links via API

Drop our checkout widget onto your pricing page with one script tag, or generate payment links programmatically via the REST API for dynamic invoice amounts.

03

Webhook fires on confirmation — your logic runs

When a payment is detected on-chain, we POST to your endpoint immediately. Provision the account, send a confirmation email, update your database.

What you get

The features that matter for your use case.

No bloat. No enterprise pricing for basic functionality. Just the tools that make collecting payment simple.

Get started
REST API
Create and manage payment links, retrieve transaction status, and list settlements — all via a clean, documented API with predictable responses.
HTTP webhooks
Subscribe to payment events. Every webhook is HMAC-signed. We retry failed deliveries with exponential backoff and surface failures in your dashboard.
Multiple API keys
Issue separate keys per environment or per team member. Revoke instantly without disrupting other integrations.
Embeddable checkout widget
A self-contained iframe or script that drops a full card + crypto checkout anywhere on your site. No redirect, no separate domain.
Team access
Invite engineers and finance to the same workspace with role-based access. No more sharing a single password.
Business

API access, webhooks, and team seats — all in Business.

Custom pricing for your scale. We talk, understand your use case, and agree on terms that make sense. No surprise overages.

  • Full REST API access
  • Webhook endpoint with signed payloads
  • Multiple API keys
  • Embeddable checkout widget
  • Team seats with role access
Custom pricing