Quickstart
Your first call in two minutes. If you've used the OpenAI or Anthropic API, you already know how.
Using Binance Agent OS?
Follow the Binance Agent OS guide: it sets up the model and the Binance connection together.
Get a key
Sign in on binference.io with your wallet and open API keys.
- Agent key: spends an agent's own budget, filled by its token's trading fees. You need to have launched the agent.
- Account key: spends credit you buy with BNB, for any use.
The key is shown once. It starts with binf_. Keep it in an environment variable:
export BINF_API_KEY="binf_..."Make a call
Change two settings in the client you already use: the address and the key. That's the only change.
curl https://binference.io/api/v1/chat/completions \
-H "Authorization: Bearer $BINF_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-5.5",
"messages": [{ "role": "user", "content": "Say hello in five words." }],
"max_tokens": 256
}'Check what it cost
Every answer's usage.cost is what the call was charged, in dollars. Your balance is one call away:
curl https://binference.io/api/v1/balance \
-H "Authorization: Bearer $BINF_API_KEY"Always set max_tokens
While a call runs it reserves its longest possible answer from your balance. Without a limit that is the model's whole output, which can be dollars. You pay only what the model writes, and the rest comes back when it ends. How a call is paid