Claude API: models, pricing and a working request

Claude models on Evrona and their prices

Claude models appear in catalog order. Each row shows the price per million input and output tokens and a Model ID starting with anthropic/, which you pass as the model parameter.

Accounting inside the service is in USD; EUR prices are recalculated at the current rate and may change.

How to get a Claude API key

1. Sign up

   Create an Evrona account with your email — it takes about a minute.

2. Top up with a code

   Buy a top-up code in the store and redeem it in your dashboard. The amount lands on your prepaid balance right away.

3. Create a key

   Create an ev-… API key in your dashboard. It works with Claude models and the rest of the catalog straight away, and you can put a spending cap on it.

Claude API request example

The gateway speaks the OpenAI API: set the base URL to https://evrona.ru/v1, use your Evrona key and pick a Model ID from the table. The example uses anthropic/claude-fable-5.1.

curl https://evrona.ru/v1/chat/completions \
  -H "Authorization: Bearer ev-YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-fable-5.1",
    "messages": [
      {
        "role": "user",
        "content": "Hi! Tell me about yourself in two sentences."
      }
    ]
  }'

from openai import OpenAI

client = OpenAI(
    base_url="https://evrona.ru/v1",
    api_key="ev-YOUR_KEY",
)

completion = client.chat.completions.create(
    model="anthropic/claude-fable-5.1",
    messages=[
        {
            "role": "user",
            "content": "Hi! Tell me about yourself in two sentences."
        }
    ],
)
print(completion.choices[0].message.content)

Claude API pricing and payment

Prices vary a lot across the Claude family: Haiku is the budget option for high-volume short calls, Sonnet covers everyday coding and writing, and Opus and Fable are meant for the hardest problems. Compare the rates above — you're billed per token actually used, with no subscription.

• Prepaid balance: top up first, then send requests — no subscription and no monthly fee.
• You top up in rubles with a top-up code that you redeem in your dashboard.
• You pay only for actual usage at the rates in the table, and every request shows up in your history.

To see what your workload would cost, try the cost calculator.

Claude API FAQ