OpenAI API

Buy OpenAI GPT API access at a fraction of official pricing. Drop-in OpenAI-compatible, pay only for what you use.

Get an OpenAI GPT API key without a US card or organization verification. APIMaster gives you the latest GPT models at a fraction of OpenAI's list price, billed per token. One key also covers Claude and DeepSeek and is fully OpenAI-compatible — drop it into Cursor, Codex or any OpenAI SDK by changing the base URL.

Seleziona modello

gpt-5.4

Canale 50

INGRESSO$0.0862/M$2.5/MRisparmia 97%

USCITA$0.5174/M$15/MRisparmia 97%

Cronologia fingerprint

Uptime

gpt-5.4

Canale 25

INGRESSO$0.1431/M$2.5/MRisparmia 94%

USCITA$0.8587/M$15/MRisparmia 94%

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

gpt-5.4

Canale 52

INGRESSO$0.1772/M$2.5/MRisparmia 93%

USCITA$1.0632/M$15/MRisparmia 93%

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

gpt-5.4

Canale 12

INGRESSO$0.1908/M$2.5/MRisparmia 92%

USCITA$1.1449/M$15/MRisparmia 92%

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

gpt-5.4

Canale 46

INGRESSO$0.2578/M$2.5/MRisparmia 90%

USCITA$1.5466/M$15/MRisparmia 90%

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

gpt-5.4

Canale 16

INGRESSO$0.2936/M$2.5/MRisparmia 88%

USCITA$1.7614/M$15/MRisparmia 88%

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

gpt-5.4

Canale 03

INGRESSO$2.5/M

USCITA$15/M

Cronologia fingerprint

Nessun dato di rilevamento

Uptime

Every GPT channel is fingerprint-checked before it's listed, so you get the real model — not a cheaper stand-in.

OpenAI API — Pricing

Model	Our price	Official	Save
GPT 5.4	$0.0862/M	$2.5/M	97%
GPT 5.5	$0.2862/M	$5/M	94%

Capabilities

Multimodal

Text, vision, code and data analysis across one model family.

Reliable reasoning

Strong general reasoning and instruction-following for production workloads.

Tools & function calling

First-class function calling and structured output for agents and pipelines.

Use cases

Chatbots & assistantsCode generation & reviewVision & document understandingData extraction & analysisFunction-calling agents

Quick start

curl https://apimaster.ai/v1/chat/completions \
  -H "Authorization: Bearer $APIMASTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

OpenAI API — Domande Frequenti

Which GPT models are available?

Currently available: gpt-5.4, gpt-5.5 — the latest GPT family with multimodal vision, code generation and data analysis, all through one key.

How is it billed? Is there a minimum?

Billed per token (input + output) — see the price table above. Pay-as-you-go via Alipay, WeChat Pay, USDT and credit card, from $1.

Is it OpenAI-compatible? Does it work with Cursor and Codex?

Yes — it is the OpenAI API, so Cursor, Codex and any OpenAI SDK work out of the box; just point the base URL and key at APIMaster.

Is my data safe?

Yes. Your API data is not stored or used for training, and all requests are sent over encrypted connections.

Why is it cheaper than OpenAI?

We aggregate volume across channels and bill per token with no minimums, so the effective price lands well below OpenAI's list price.

Other models

Claude API DeepSeek API MiniMax API Kimi API Qwen API Sora API GPT Image API

Come Iniziare

Crea la tua Chiave API

Registrati e crea una chiave API compatibile con OpenAI in 3 secondi. Nessuna carta di credito richiesta.

Crea Chiave API

Ricarica il tuo Saldo

Aggiungi crediti tramite USDT o Epay. Un unico saldo funziona con tutti i modelli e provider.

Ricarica Ora

Collegalo al tuo Codice o Agente

Sostituisci la tua chiave APIMaster e l'URL di base — funziona con qualsiasi strumento compatibile con OpenAI: Claude Code, Cursor, LangChain, LiteLLM e altri.

Vedi Documentazione