OpenAI-Compatible LLM Gateway

OpenAI-Compatible LLM Gateway

Drop-in base_url for any OpenAI client. 17 models, pay-per-call in USDC, no API key, no signup.

When to use this

• You want frontier LLM completions (GPT, Claude, Gemini, DeepSeek, Llama, Kimi, Qwen) without managing provider keys or accounts.
• You want to pay per call in USDC (x402, Base or Solana) instead of a subscription — or fund a key and pay from balance.
• You need a drop-in OpenAI-compatible endpoint your existing tools/SDKs already speak.

Base URL

https://api.gocreativeai.com/v1

Endpoints

• POST /v1/chat/completions — OpenAI-compatible chat completions. Send {model, messages}, get a standard chat.completion back. $0.02 / call. (Streaming not yet supported — set stream: false.)
• GET /v1/models — free. Lists every model the gateway routes to.
• Tiered shortcuts (URL-encode the prompt in the path):
  • GET /v1/ai/eco/{prompt} — cheapest, $0.005
  • GET /v1/ai/ask/{prompt} — standard, $0.02
  • GET /v1/ai/pro/{prompt} — frontier (Claude/GPT-5), $0.08
  • GET /v1/ai/ultra/{prompt} — top reasoning (Opus), $0.25

How to pay (no signup either way)

1. x402 (pay-per-call): call the endpoint with an x402-enabled client; it returns HTTP 402 offering USDC on Base or Solana, your client pays, the call completes.
2. Funded key: fund a key and pass it as the OpenAI api_key (Authorization: Bearer gck_...).

Drop-in example (OpenAI SDK)

from openai import OpenAI
client = OpenAI(base_url="https://api.gocreativeai.com/v1", api_key="gck_")
resp = client.chat.completions.create(
    model="gpt-4o-mini",
    messages=[{"role": "user", "content": "Summarize this in one line: ..."}],
)
print(resp.choices[0].message.content)

curl

curl -X POST https://api.gocreativeai.com/v1/chat/completions \
  -H "Authorization: Bearer gck_" -H "Content-Type: application/json" \
  -d '{"model":"gpt-4o-mini","messages":[{"role":"user","content":"hi"}]}'

Models

17 models across tiers — GPT-5 / 5-mini / 5-nano, Claude Sonnet / Haiku / Opus, Gemini Flash / Pro, DeepSeek, Llama, Kimi, Qwen, GPT-OSS. Call GET /v1/models for the live list. Unknown model names map to a sensible default.

Why this vs others

• Keyless + pay-per-call in USDC (Base + Solana) — no subscription, no account, no rate limits.
• Bundled with 350+ data & compliance tools on the same API (company enrichment, sanctions/KYB screening, SEC filings, crypto/DeFi, government data) — one base_url for LLM and real-world data.