Two productized offers. Both delivered async, in writing, on a fixed timeline. No discovery calls. No estimates. If we miss the spec, you get your money back.
No retainers. No scope creep. Each offer is a fixed-price, fixed-scope sprint with a clear deliverable list.
An always-on, EU-native WhatsApp assistant that captures, qualifies and routes leads in Portuguese and Spanish. Built on n8n + Claude + Slack approval.
A 14-day documentation sprint that gives your AI SaaS the technical evidence pack enterprise buyers and investors require today. Annex IV, risk classification, AI literacy policy, monitoring plan.
Two offers. Fixed scope. Fixed price. You know exactly what you get before you pay.
No discovery calls. All work happens in shared docs, Loom updates, and email. Your time stays yours.
EU data residency. GDPR-aware. Portuguese, Spanish, English. Built for the European market — not retrofitted.
If the deliverables do not match the spec, you get a full refund. No invoice for time we did not earn.
500+ rooftop installations across Rio de Janeiro. We rebuilt their inbound stack end to end — site form, WhatsApp routing, Google Business reviews, social auto-posting.
"The form, the WhatsApp routing and the auto-posting all came together in one week. We stopped losing leads at night and our Google profile finally shows up. It just runs."
What you see is what you pay. 50% to start, 50% on delivery. Wire transfer, Stripe link, or invoice.
Always-on inbound assistant in PT and ES. 5-day build, optional monthly operations.
+ €497/month operations (optional)
Documentation pack for AI SaaS founders. The evidence file enterprise procurement and Series A/B due diligence are already asking for.
No retainer. No recurring fee.
Felipe Silva. UK-based engineer and operator. Currently operates RIOSUN Solar's inbound stack in production. 3B.X is the studio behind both products. You talk to the person who builds the work.
Because hourly punishes speed and rewards drag. A fixed price means we both want the same thing — the deliverable, on the spec, on time.
No. All collaboration happens in shared docs and Loom videos. Async is what makes the fixed price and the short timeline possible. It is the offer.
The scope is written down before you pay. If a deliverable is missing or wrong against the spec, we fix it. If we cannot, you get a full refund.
Both products are designed for EU customers. We can deliver for UK and Brazilian companies — get in touch and we will tell you straight whether it fits.
50% upfront, 50% on delivery. Stripe link, wire transfer, or invoice in EUR or GBP. 3B.X SOLUTIONS LTDA is a registered Brazilian company (CNPJ 12.646.374/0001-68) invoicing in EUR.
No. It is technical documentation built to the structure your lawyer needs. Your lawyer signs off on the legal interpretation — we deliver the evidence pack underneath it.
Portuguese (PT and BR) and Spanish (Castellano). The flows, prompts and templates are written natively for each market — not machine-translated.
Yes. Two slots open per month per product. Email felipe@3bxsolutions.com with the offer you want and we will confirm the slot the same day.
Scope is written down before you pay. Deliverables are listed and dated. If a deliverable does not land, we fix it. If we cannot, the engagement is refunded in full. Standard payment is 50% deposit / 50% on written approval — you never pay the balance for work you haven't signed off.
One email, one product, one timeline. We answer within one business day.