# AgentRouter — OpenAI-compatible API

> Base Sepolia testnet. Wallet setup and spending require the owner's authorization. Follow one wallet path.

Make an OpenAI-compatible request using your purchased key.

[Human guide](https://docs.agentrouter.cc/use/openai) · [Pricing](https://agentrouter.cc/pricing#agents) · [Documentation index](https://docs.agentrouter.cc/llms.txt)

## OpenAI-compatible inference

# Run OpenAI-compatible inference with a purchased key

Verify `zai/glm-5.3` is offered with `openai` in the current catalog before
spending. Set `AGENTROUTER_KEY` privately. Create **one** identity per
intended request; retain it and the exact body for retries. Do not rerun
`uuidgen` to bypass an uncertain result.

Purchased keys do not support streaming. HTTP 200 returns an
OpenAI-compatible completion. Replays return request status, not the
original completion. HTTP 401 means an invalid key; 402 means allowance
exhausted. Do not create a fresh identity after an uncertain charge.

```sh
REQUEST_ID=$(uuidgen)

curl -sS https://api.agentrouter.cc/v1/chat/completions \
  -H "Authorization: Bearer ${AGENTROUTER_KEY:?set your key privately}" \
  -H "Idempotency-Key: $REQUEST_ID" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "zai/glm-5.3",
    "max_tokens": 512,
    "reasoning_effort": "low",
    "stream": false,
    "messages": [{ "role": "user", "content": "Reply with exactly OK." }]
  }'
```

### Expected result

# Expected inference result

HTTP 200 returns an OpenAI-compatible completion, with the answer in
`choices[0].message.content` and token counts in `usage`. The tested request returned
`OK`; model output can vary. A 200 status with no visible answer is not proof of a
useful reply. Keep the request identity if the result is uncertain; do not create a
new billable request automatically.