<!-- source: https://secondlayer.tools/docs/api-reference#get-pox4-cycle -->

## A PoX-5 reward cycle by cycle number

`GET /v1/index/pox/cycles/{reward_cycle}`

One pox-5 reward cycle, the same shape as a row of `/v1/index/pox/cycles` plus its per-signer breakdown. 404 when the cycle doesn't exist yet. A cycle number below 141 (pox-5's first) 404s with a note that PoX-4 cycles are final and not served here.

### Path parameters

| Name | Type | Description |
| --- | --- | --- |
| `reward_cycle` | integer, required | Reward cycle number. |

### Responses

- `200` The cycle, with its signers
- `400` `reward_cycle` is not a non-negative integer
- `401` This bind requires the instance token, and it was missing or wrong
- `404` The cycle doesn't exist yet, or (below 141) is PoX-4 history: final and not served here; rebuild it from /v1/index/stacking on a self-hosted instance
- `429` Rate limited; retry after `Retry-After` seconds

### Example

```bash
curl https://api.secondlayer.tools/v1/index/pox/cycles/141 \
  -H "Authorization: Bearer $SECONDLAYER_API_KEY"
```

```json
{
  "pox_version": 5,
  "cycle": {
    "reward_cycle": 141,
    "start_burn_height": 962150,
    "prepare_start_burn_height": 962050,
    "end_burn_height": 964249,
    "total_stacked_ustx": "392447554847960",
    "reward_eligible_ustx": "392447554847960",
    "stakers": 3035,
    "signers_in_set": 36,
    "bond_sats": {
      "1": "23017037628"
    },
    "bond_total_sats": "23017037628",
    "sbtc_custodied_sats": "16016587628",
    "rewards_allocated_stx": "297713728",
    "rewards_allocated_bond": "13810222",
    "reserve_deposit": "52537716",
    "rewards_per_token_stx": "758607677183",
    "rewards_per_token_bond": {
      "1": "599999974940302"
    },
    "distributions": 2,
    "rewards_claimed": "162018760",
    "computed_through_height": 8665732,
    "is_current": false,
    "is_frozen": true,
    "signers": [
      {
        "signer": "SPMPMA1V6P430M8C91QS1G9XJ95S59JS1TZFZ4Q4.fastpool-max500-signer-manager",
        "delegated_ustx": "51000000000000",
        "stx_only_ustx": "51000000000000",
        "reward_shares_ustx": "51000000000000",
        "in_set": true,
        "rewards_claimed": "19011164"
      }
    ]
  },
  "tip": {
    "block_height": 9048929,
    "finalized_height": 9048671,
    "lag_seconds": 22,
    "source_block_height": 9048929
  }
}
```