---
updatedAt: 2026-05-13T16:19:39.000Z
---

Fetch the complete documentation index at: https://docs.blockdaemon.com/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version.

# Cosmos REST API

**Step 1:** To access Cosmos REST, use the native access endpoint with `cosmos-rest` at the end:

* **Network:** Cosmos Mainnet
* **Request Type:** GET

```
https://svc.blockdaemon.com/cosmos/mainnet/native/cosmos-rest
```

**Step 2:** Authenticate your request using your API key. You can include the API key using either of the following headers:

```curl Bearer Token
Authorization: Bearer YOUR_API_KEY
```

```curl X-API-Key
X-API-Key: YOUR_API_KEY
```

**Step 3.** Specify a Cosmos method at the end of the query:

> Learn more about Cosmos Rest methods [here](https://docs.blockdaemon.com/reference/cosmos-rest-methods-rpc-api).

```text
https://svc.blockdaemon.com/cosmos/mainnet/native/cosmos-rest/YOUR_METHOD
```

### Example Request

Here is a cURL example for using `params` to query all parameters in Cosmos Mainnet:

```curl
curl -X GET\
https://svc.blockdaemon.com/cosmos/mainnet/native/cosmos-rest/cosmos/auth/v1beta1/params
-H 'Authorization: Bearer YOUR_API_KEY' \
```

The following is a typical response you will get:

```json
{
    "params": {
        "max_memo_characters": "512",
        "tx_sig_limit": "7",
        "tx_size_cost_per_byte": "10",
        "sig_verify_cost_ed25519": "590",
        "sig_verify_cost_secp256k1": "1000"
    }
}
```

## 👋 Need Help?

Contact us through [email](mailto:support@blockdaemon.com) or our [support page](https://www.blockdaemon.com/support) for any issues, bugs, or assistance you may need.