DoppAPI gives you up to 2.2× the value for the same money — extra LLM tokens, plus per-image image and per-call voice billing at fixed USD prices below the vendor list. Here's exactly how the pipeline works — from your crypto payment to your first API call.
Choose LLM, Image, or Voice. Pick a model and (for media) any settings. Pay USDT / BTC / ETH / SOL.
We create a fresh, isolated API key and fund it to your selection — extra tokens for LLM, a fixed USD budget for media.
Set the base URL + your key in any OpenAI-compatible SDK, Cursor, or Claude Code. Start calling models — chat, image, or voice.
Your key is funded through infrastructure that sources model access at a fraction of the standard rate. We pass that saving straight to you. For LLMs, that's a 1.5×-2.2× token bonus. For image and voice, every SKU ships at a fixed USD price set visibly below the vendor list price — Doubao Seedream 5 Pro, Grok Imagine, Gemini Nano Banana, Hailuo Speech 2.8 Turbo, GPT-4o Mini TTS. The models are the same — only what you pay changes.
LLM example: $5 on the official API buys ~2.4M GPT-5.6 Sol input tokens. The same $5 on DoppAPI buys ~4.8M. Same model, half the effective cost. Image example: a 1K Gemini Nano Banana Pro image runs $0.134 at the vendor; on DoppAPI $0.12. Voice example: a GPT-4o Mini TTS call runs $0.12 at the vendor; on DoppAPI $0.09. Every media card on the catalog shows the vendor list price and your saving side by side.
This is what keeps you safe:
Hard cap. Your key is funded to an exact balance. When it hits zero, calls stop. It can never go negative — you can't accidentally overspend.
Model lock. The key is restricted to the DoppAPI catalog — the exact LLM, image, or voice SKU you bought at checkout. It can't call anything off-list.
Live meter. See remaining balance anytime on our balance checker — paste your key, see USD remaining.
IP bind (optional). Lock the key to your server IPs so a leaked key is useless elsewhere.
DoppAPI is OpenAI-compatible. Drop the base URL and your key into whatever you already use:
# any OpenAI SDK
from openai import OpenAI
client = OpenAI(
base_url="https://doppapi.com/v1", # shown after purchase
api_key="YOUR_DOPP_KEY"
)
client.chat.completions.create(
model="gpt-5.6-sol",
messages=[{"role":"user","content":"Hello"}]
)
The same base URL works for chat (LLM), image, and voice — your key is locked to the SKU you bought. The exact base URL is shown on the success screen after your payment confirms.
When your balance runs low, send another crypto payment and we top up the same key — or mint a new one for a different SKU. Payments are in cryptocurrency and final. If something goes wrong, we reach you on the contact handle you entered at checkout (email or @telegram).