# Supported chains

> Chains this API serves, with chain id, native symbol and block time. Supported chains on Robinhood Chain: parameters, plan, credits, code and a real response.

Source: https://docs.crius.sh/reference/chain/supported-chains/ · Updated 2026-10-28

GET https://api.crius.sh/v1/chains

Chains this API serves, with chain id, native symbol and block time.

## Guides that use this endpoint

[**Robinhood Chain RPC, chain ID 4663 and network settings**Robinhood Chain network settings: chain ID 4663 (0x1237), public RPC URLs, ETH gas, the block explorer, an eth\_chainId check and what an indexed API adds.](https://docs.crius.sh/guides/robinhood-chain-rpc-and-chain-id/)

## Errors

Errors come back as `{ "error": { "code", "message" } }` with the matching HTTP status: `400` bad parameter, `401` missing or invalid key, `403` endpoint above your plan, `404` unknown token or address, `429` rate limit or credits used up (with `Retry-After`). See [Errors](https://docs.crius.sh/errors/).

## More chain stats & status endpoints

[GET/statsChain statsAnonymous · 1 cr](https://docs.crius.sh/reference/chain/chain-stats/)[GET/volumeVolume historyAnonymous · 1 cr](https://docs.crius.sh/reference/chain/volume-history/)[GET/v1/statusService statusAnonymous · 0 cr](https://docs.crius.sh/reference/chain/service-status/)

Request No key needed

  

**cURL**

```bash
curl "https://api.crius.sh/v1/chains" \
  -H "x-api-key: $CRIUS_API_KEY"
```

**JavaScript**

```js
const res = await fetch("https://api.crius.sh/v1/chains", {
  headers: { "x-api-key": process.env.CRIUS_API_KEY },
});
const { data, meta } = await res.json();
```

**Python**

```python
import os, requests

r = requests.get(
    "https://api.crius.sh/v1/chains",
    headers={"x-api-key": os.environ["CRIUS_API_KEY"]},
)
body = r.json()
print(body["data"])
```

Response 200 · captured Oct 28, 2026

```json
{
  "data": [
    {
      "block_time_ms": 100,
      "chain_id": 4663,
      "name": "Robinhood Chain",
      "native": "ETH",
      "regions": [
        "rigel"
      ],
      "slug": "robinhood",
      "type": "arbitrum_orbit_l2"
    }
  ]
}
```

[Report an issue](mailto:support@crius.sh?subject=Docs%20issue%3A%20GET%20%2Fv1%2Fchains&body=Page%3A%20https%3A%2F%2Fdocs.crius.sh%2Freference%2Fchain%2Fsupported-chains%2F%0A%0AWhat's%20wrong%20or%20missing%3F%0A%0A)