🔌 One Key, Every Model

Access Claude, Gemini & GPT APIs With One Key

Sylor API is fully OpenAI-compatible. Point your base URL to https://api.sylorapi.com/v1, use one key, and switch between models by changing a single parameter.

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Base setup (works everywhere)

Set two things in any OpenAI-compatible client or SDK:

curl https://api.sylorapi.com/v1/chat/completions \
  -H "Authorization: Bearer $SYLOR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-sonnet-5","messages":[{"role":"user","content":"Hello"}]}'

Access the Claude API

Call Anthropic's Claude models — Opus, Sonnet and Haiku — through the OpenAI-compatible /v1/chat/completions endpoint, or use the native /v1/messages endpoint. Just set the model name, e.g. claude-opus-4-8 or claude-sonnet-5.

Get a Gemini API key

Your single Sylor API key also calls Google Gemini models — no separate Google Cloud project or key needed. Set the model to a Gemini model and send the same request format.

Access the GPT (OpenAI) API

GPT models work through the standard /v1/chat/completions endpoint. If you already use the OpenAI SDK, only the base URL and key change:

from openai import OpenAI
client = OpenAI(base_url="https://api.sylorapi.com/v1", api_key="YOUR_SYLOR_KEY")
r = client.chat.completions.create(model="gpt-5.5", messages=[{"role":"user","content":"Hi"}])
print(r.choices[0].message.content)

Use it in your favorite tools

Cherry Studio

Add an OpenAI provider, set host to https://api.sylorapi.com, paste your key.

Cursor

Use a custom OpenAI base URL and your Sylor API key.

Claude Code

Point the API base to Sylor API and go — fully compatible.

Any OpenAI SDK

Python, Node, Go — change base URL + key, keep your code.

Frequently asked questions

How do I access the Claude API?

Sign up, create a key, set base URL to https://api.sylorapi.com/v1, and call Claude models via /v1/chat/completions or /v1/messages.

How do I get a Gemini API key?

Create a Sylor API key in your dashboard — that one key calls Gemini through the same OpenAI-compatible endpoint, no separate Google project needed.

Does it work with Cherry Studio, Cursor and Claude Code?

Yes — set the host to https://api.sylorapi.com and paste your key. All OpenAI-compatible clients work out of the box.

Start using every model with one key

Register, top up any amount, and call GPT, Claude, Gemini and more through a single OpenAI-compatible endpoint.

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