> For the complete documentation index, see [llms.txt](https://raiden-network.gitbook.io/raiden-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://raiden-network.gitbook.io/raiden-network/raiden-api-1/resources/contracts-information.md).

# Contracts Information

By querying the contracts endpoint you can check which on-chain smart contracts are used.

## Contracts Resource Overview

| HTTP Method | Resource                                                                                                           | Description                           |
| ----------- | ------------------------------------------------------------------------------------------------------------------ | ------------------------------------- |
| GET         | [`/api/<version>/contracts`](/raiden-network/raiden-api-1/resources/contracts-information.md#contract-information) | Addresses of the used smart contracts |

## Contracts Resource Details

## Contract information

<mark style="color:blue;">`GET`</mark> `http://localhost:5001/api/v1/contracts`

Queries the version and addresses of the smart contracts used by the Raiden client.

#### Path Parameters

| Name    | Type   | Description        |
| ------- | ------ | ------------------ |
| version | string | Version of the API |

{% tabs %}
{% tab title="200 Successful query" %}

```
{
    "contracts_version": "0.37.1",
    "monitoring_service_address": "0x20e8e5181000e60799A523a2023d630868f378Fd",
    "one_to_n_address": "0xA514Da2418576CeC4070C82996f30532dDa99706",
    "secret_registry_address": "0x9fC80eb1939d8147aB90BAC01AD585f3a71BeE7e",
    "service_registry_address": "0x3bc9C8d34f5714327095358668fD436D7c457C6C",
    "token_network_registry_address": "0x5a5CF4A63022F61F1506D1A2398490c2e8dfbb98",
    "user_deposit_address": "0x0794F09913AA8C77C8c5bdd1Ec4Bb51759Ee0cC5"
}
```

{% endtab %}
{% endtabs %}