gta6/prompts
economy
Vaultintermediateeconomy

Currency Exchange — Cash/Crypto/FX Bureau

QBCore exchange bureau that swaps cash into crypto or a foreign currency at a server-side drifting mid-rate plus a spread fee, with a teller animation.

NON-TESTÉ — the reference Lua is syntax-validated, not run in a live FiveM server. Adapt and test on your own dev server before shipping.
Est. Lua
~57 loc
Claude
Claude Opus 4.x / Sonnet 4.x
Validation
syntax-validated
Updated
2026-06-25

Description

A multi-currency exchange bureau: players swap cash into crypto or a foreign currency at a mid-rate that drifts on a server timer, paying a spread fee on every conversion. It goes beyond the usual crypto buy/sell button by modelling a live rate and a bureau cut, which gives crypto-RP economies a real FX surface and a steady money sink. The spread is the recurring drain servers pay for.

Prompt Template

You are writing a FiveM resource for qb-core.

🔒 Eyes-only — locked prompt body

The full prompt template and its reference Lua are part of a one-time pack. Pick your depth — both are lifetime access, no subscription, ever.

Core$49one-time
  • 60 prompts + syntax-validated reference Lua
  • Lifetime access — pay once
Most Popular · Best Value
Vault$199one-time
  • All 510 prompts — the full library
  • Per-prompt profit/trend intelligence (CSV + playbook)
  • Lifetime free updates — new niches as the market moves
Get the Vault — $199

$49 for 60 · $199 for all 510 + intelligence — one-time, no subscription.

Expected Output

The reference Lua at content/expected-outputs/economy/27-currency-exchange-bureau.lua holds a server-side drifting rate table, validates and prices every swap with the spread server-side, and plays a…

🔒 Eyes-only — locked prompt body

The full prompt template and its reference Lua are part of a one-time pack. Pick your depth — both are lifetime access, no subscription, ever.

Core$49one-time
  • 60 prompts + syntax-validated reference Lua
  • Lifetime access — pay once
Most Popular · Best Value
Vault$199one-time
  • All 510 prompts — the full library
  • Per-prompt profit/trend intelligence (CSV + playbook)
  • Lifetime free updates — new niches as the market moves
Get the Vault — $199

$49 for 60 · $199 for all 510 + intelligence — one-time, no subscription.

Known Failure Modes & Corrective Prompt

  • Client-side rate — exposing the rate or math lets a player swap at their chosen price. Keep both server-side.
  • Anim no-op — TaskPlayAnim before the dict loads silently fails. Wait on HasAnimDictLoaded.
  • Overdraft swap — charging without re-checking cash mints the target currency. Re-check GetMoney("cash") server-side.

Corrective re-prompt: Keep the rate table and all conversion math on the server with math.floor, re-check the held cash balance before charging, and guard the teller animation with RequestAnimDict + a while not HasAnimDictLoaded(dict) do Wait(0) end loop before TaskPlayAnim.

Framework Integration

  • ESX: port to ESX.GetPlayerFromId, getMoney/removeMoney, and addInventoryItem(to, net) for the crypto/FX item.
  • QBCore: native — Player.Functions.GetMoney/RemoveMoney("cash", ...) and AddItem(to, net) as shown.
  • QBox: drop-in via exports.qbx_core; route AddItem through ox_inventory and persist rates if you want them shared across restarts.

Profit Potential

$150–$2,000/mo on Tebex (expected ~$520). [INFERRED] priced in the $50-389 script band against the signal-scraper corpus (tebex_snapshot n=100, median seller $11.85K/mo); a stable, uncommon FX niche.

Trend Signal

→ stable — inferred: Beyond simple crypto buy/sell, a multi-currency spread/FX bureau is uncommon; reasoned demand pairing with crypto-RP economies.

Sales Angle

Position it above the basic crypto button — a real FX bureau with a live spread and drifting rates. Mid-to-upper band, ~$129-179 on Tebex, sold alongside a crypto economy.

Difficulty & Ship Time

intermediate · ships in 1 day.