DeepSeek API in Vietnam: USDT or PayPal Top-Ups

Last updated 2026-09-17 · Written by Nova

PayPal in Vietnam is easier for receiving money than for spending it, and local cards are frequently declined on foreign AI services. NovaAPI lets Vietnamese developers run DeepSeek V4 behind Claude Code, Cursor or their own app, topped up with USDT or PayPal.

Where Vietnamese developers get stuck

• PayPal is asymmetric here. Many Vietnamese users can receive funds but run into limits or verification walls when paying international merchants, and withdrawal to a local bank is its own project.
• Local bank cards are inconsistent on cross-border online payments. Some work; many are blocked for international e-commerce unless you specifically enable it, and recurring/subscription billing is the most likely to fail.
• USDT is already the default for cross-border work. Vietnamese freelancers and studios get paid in USDT constantly — using it for infrastructure spend is the natural next step.
• Chinese platforms assume Chinese payment rails. That's the core problem NovaAPI removes: one OpenAI-compatible endpoint that bills in USD.

Practical routes

USDT (TRC20) — buy via a local exchange or P2P (Binance P2P is widely used in Vietnam), keep a few TRX for the network fee, and send the exact top-up amount to the address in your order. Credited at the on-chain amount.

PayPal — if your account can send international payments, this works too. Top-ups are one-off, not subscriptions, so you don't need recurring billing to succeed.

What the bill actually looks like

Compare that with $20/month per-seat coding assistants: at these token prices, pay-as-you-go is usually cheaper unless you're prompting all day every day.

Getting started (about 5 minutes)

1. Create an account — api.lbase.com/register. Email + password only; the $1 of free credit lands in your balance immediately, so you can test before paying anything.
2. Create an API key — in the console, open API Keys → Create Key and pick a group (DeepSeek for native model names, Claude Compatible if you want to keep Claude model names). A key without a group cannot call anything.
3. Point your tool at the endpoint — https://api.lbase.com/v1 for OpenAI-compatible clients, https://api.lbase.com for Claude Code / Anthropic SDK. Full copy-paste configs for Claude Code, Cursor, Codex CLI, OpenCode and the OpenAI SDK are in the docs.
4. Top up when the free credit runs out — minimum $5, by USDT or PayPal (TRC20). Balance never expires.

What it costs (same price everywhere)

For scale: a typical Claude Code session burns 20k–60k input tokens and 3k–10k output tokens. On DeepSeek V4 Flash that is roughly $0.02–$0.05 per session — a $10 top-up covers hundreds of sessions.

What we don't do

• We don't require a Chinese phone number, a Chinese ID, or a Chinese bank account.
• We don't require a credit card — USDT and PayPal are both fine.
• We don't hide pricing behind a sales call: the numbers above are the numbers you pay.
• We're a gateway, not the model vendor: your prompts go to the upstream model provider, so where your prompts go is documented in full in our Privacy Policy.

Vietnam FAQ

Có cần thẻ tín dụng không?

Không. USDT (TRC20) hoặc PayPal đều được — minimum $5.

Do I need a Vietnamese company or tax code?

No. Accounts are individual — email plus password. If you need an invoice for a company, email us.

Which network for USDT?

TRC20 (TRON). Cheap and fast for small amounts; make sure you send on TRON, not BEP20 or ERC20.

Is Claude Code supported?

Yes — including with Claude model names. Create a key in the Claude Compatible group and point Claude Code at https://api.lbase.com; your existing Claude Code workflow stays unchanged.

Frequently asked questions

Why is my Vietnamese card declined on foreign AI services?

Three causes account for nearly all of it and none is about your balance: international payments are off by default, your bank blocks foreign AI/cloud merchants, or 3DS/OTP fails at the final step. The last one is the most deceptive, because the error text is identical to a genuine decline.

PayPal shows a balance but my payment still fails — why?

Because receiving and spending are not the same permission. In many countries money can arrive in a PayPal account more easily than it can be sent out internationally. A balance you cannot spend is not a payment method; verify the account can send cross-border payments before relying on it.

Which crypto network should I use for a top-up?

TRC20 — the fee is low and flat at roughly $1 per transfer regardless of amount, and confirmation is fast enough for a checkout flow. Match the network shown on the order screen exactly; sending on a different network means the funds do not arrive.

Do I have to change my code?

No. The endpoint is OpenAI-compatible, so you change the base URL and the API key and nothing else. Your existing OpenAI SDK code keeps working, including with tools such as Cursor, Cline, Aider, Continue and LangChain.