Getting started

First request

Send a minimal request with curl or an SDK to confirm your key and address work.

Send a minimal request to verify your key and URL. Replace YOUR_API_KEY with your API key, or choose a key at the top of the page to fill it in automatically. Model names must match the Model catalog; the example uses a currently available model.

OpenAI protocol

YOUR_API_KEY in the examples is a placeholder and will not work as copied. Sign in to pick one of your keys and fill it into every example on this page.

curl

curl https://api.keyvia.cc/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5",
    "messages": [{ "role": "user", "content": "Reply only: Hello" }]
  }'

A successful request returns JSON. The reply is in choices[0].message.content.

Anthropic protocol

curl

curl https://api.keyvia.cc/v1/messages \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-5-5",
    "max_tokens": 256,
    "messages": [{ "role": "user", "content": "Reply only: Hello" }]
  }'

A successful request returns JSON. The reply is in content[0].text.

A reply confirms the connection

Continue with the guide for your tool:Claude Code, Codex CLI, Cursor, Cherry Studio.

For errors, see Error codes: 401 usually indicates a key problem; 404 usually indicates a URL or model-name problem.