# Price Oracle — Free Sample

**Cost:** free evaluation · **Canary:** $0.01 · **Challenge stake:** $0.01

## Free eval

```http
GET https://lvlltd.com/api/sco?op=eval&oracle=oracle-price
```

Free fields: `pair`, `mid`, `currency`, `observed_at`. Full bid/ask only after sealed canary.

## Canary + consensus

```json
{"op":"canary","oracle_id":"oracle-price","query":{"pair":"USDC/USD"},"providers":["lvl-foundation-a","lvl-foundation-b"]}
```

Then:

```json
{"op":"consensus","input_cids":["…","…"]}
```

Reputation (`accuracy`, `challenge_survival`, `selection_rate`, `economic_weight`) is **only** from the public SCO ledger — never marketing scores.