> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sx.bet/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

> Different operations on SX Bet require different levels of authentication. Here's what you need and why.

## Authentication by scope

| Operation                                                                                                                           | Auth required       |
| ----------------------------------------------------------------------------------------------------------------------------------- | ------------------- |
| Fetch markets, the order book, the anonymized public tape                                                                           | None                |
| Fetch best odds; read your own orders, positions, trades, fills, or balances; subscribe to WebSocket channels; register a heartbeat | API key             |
| Place an order and account actions                                                                                                  | API key + signature |

Send the key as the `x-sx-api-key` header. Generate one from the API section of your account page on [sx.bet](https://sx.bet). See [API keys](/api-reference/api-key).

## Auth by route

| Method   | Route                             | Auth    | Signature       |
| -------- | --------------------------------- | ------- | --------------- |
| `GET`    | `/metadata/obv3`                  | None    | —               |
| `GET`    | `/sports`                         | None    | —               |
| `GET`    | `/leagues`                        | None    | —               |
| `GET`    | `/leagues/active`                 | None    | —               |
| `GET`    | `/teams`                          | None    | —               |
| `GET`    | `/fixture/active`                 | None    | —               |
| `GET`    | `/fixture/status`                 | None    | —               |
| `GET`    | `/live-scores`                    | None    | —               |
| `GET`    | `/search`                         | None    | —               |
| `GET`    | `/markets/active`                 | None    | —               |
| `GET`    | `/markets/find`                   | None    | —               |
| `GET`    | `/markets/popular`                | None    | —               |
| `GET`    | `/orderbook-v3/snapshot`          | None    | —               |
| `GET`    | `/trades-v3/public`               | None    | —               |
| `GET`    | `/orders-v3/odds/best`            | API key | —               |
| `GET`    | `/orderbook-v3/snapshot/event`    | API key | —               |
| `GET`    | `/orders-v3`                      | API key | —               |
| `POST`   | `/orders-v3`                      | API key | EIP-712 order   |
| `DELETE` | `/orders-v3`                      | API key | —               |
| `DELETE` | `/orders-v3/all`                  | API key | —               |
| `DELETE` | `/orders-v3/event`                | API key | —               |
| `POST`   | `/heartbeat/v3`                   | API key | —               |
| `GET`    | `/trades-v3`                      | API key | —               |
| `GET`    | `/fills-v3`                       | API key | —               |
| `GET`    | `/positions-v3`                   | API key | —               |
| `POST`   | `/user/deploy-proxy`              | API key | —               |
| `GET`    | `/user/proxy`                     | API key | —               |
| `POST`   | `/user/transfer-to-proxy`         | API key | EIP-2612 permit |
| `GET`    | `/user/transfer-to-proxy/pending` | API key | —               |
| `GET`    | `/user/transfer-to-proxy/status`  | API key | —               |
| `GET`    | `/user/pending-deploy-proxy`      | API key | —               |
| `GET`    | `/user/balance-v3`                | API key | —               |
| `GET`    | `/user/fees-v3`                   | API key | —               |
| `GET`    | `/user/realtime-token-v3`         | API key | —               |