Frequently Asked Questions
What happens to human visitors?
Nothing. They see your normal site. Soldi only detects and gates AI agents. Humans are never blocked.
What if an agent can't pay?
It receives a 402 response and leaves. You earn $0 — exactly the same as today. There's no downside to installing Soldi.
Which AI agents can pay?
Any agent with a crypto wallet (via x402/USDC) or credit card (via Stripe MPP). Coinbase, OpenAI, Anthropic, and Stripe are actively building agent payment capabilities.
Do I need to understand crypto?
No. Connect Stripe and agents pay with regular credit cards. Adding a crypto wallet is optional and takes 30 seconds if you want to.
What platforms do you support?
Next.js, Express, and Hono today. The middleware package works with any Node.js framework. WordPress plugin coming soon.
How do I get my money?
Crypto payments (x402) go directly to your wallet — we never touch them. Card payments (Stripe MPP) go to your connected Stripe account. Soldi is completely free to use — no platform fees.
Is Soldi really free?
Yes. Soldi charges no platform fees, no monthly costs, and no minimums. You keep 100% of your revenue. Standard payment processor fees (Stripe, network gas) still apply as they would with any payment.
What if the Soldi API goes down?
The middleware fails open. If it cannot reach the Soldi API, it serves your content normally — it never blocks visitors. Uptime is critical and we monitor 24/7.
How does agent detection work?
Three layers: (1) Known User-Agent pattern matching for 27+ AI agents, (2) Payment protocol header detection, (3) Header fingerprinting for unknown agents. When uncertain, we default to "human" — we never accidentally block a real visitor.
Can agents spoof their User-Agent?
Yes, but agents that want to pay will identify themselves honestly. Agents that spoof to avoid detection are the same ones that wouldn't pay anyway.
How do I set different prices for different pages?
Use the Pricing page in your dashboard or configure route patterns in the middleware: "/blog/*": { price: 0.005 }, "/premium/*": { price: 0.02 }