Login 
Contact Support
We are always ready to help you
devdoclang/claude-opus-5
Repeated prompts are cached — reads are far cheaper than input, applied automatically via the API.
Estimate based on list prices. Caching usually makes it cheaper.
https://api.xah.io/v1/chat/completions
https://api.xah.io/v1/messages
https://api.xah.io/v1/responses
https://api.xah.io/v1beta/models/devdoclang/claude-opus-5:generateContent
https://api.xah.io/api/chat
curl 'https://api.xah.io/v1/chat/completions' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"model": "devdoclang/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Xin chào, bạn là ai?"
}
]
}'// Node.js / Browser
const res = await fetch('https://api.xah.io/v1/chat/completions', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"model": "devdoclang/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Xin chào, bạn là ai?"
}
]
})
});
const data = await res.json();
console.log(data);import requests
url = 'https://api.xah.io/v1/chat/completions'
headers = {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json',
}
payload = {
"model": "devdoclang/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Xin chào, bạn là ai?"
}
]
}
res = requests.post(url, headers=headers, json=payload, timeout=120)
print(res.status_code, res.json()){
"model": "devdoclang/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Xin chào, bạn là ai?"
}
]
}Send a prompt with your API key — uses real credits, streams back instantly.