# TransitSwap Contracts

Query contracts of all chains including router & approve

## Return all chains contracts

<mark style="color:blue;">`GET`</mark> `https://aggserver.transit.finance/v4/common/contracts`

{% tabs %}
{% tab title="200: OK " %}

```json
{
    "result": 0,
    "message": "success",
    "data": {
        "contracts": {
            "router": {
                "ETH": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "OP": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "BSC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "OEC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "HECO": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "MATIC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "FTM": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "KCC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "ARB": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "AVAX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "CFX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "GLMR": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "ETC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "KLAY": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "TRON": "TKqQ7zuL7yKp1NWuhGpoXTDiE3j2qiAbRE"
            },
            "approve": {
                "ETH": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "OP": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "BSC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "OEC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "HECO": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "MATIC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "FTM": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "KCC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "ARB": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "AVAX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "CFX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "GLMR": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "ETC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",
                "KLAY": "0x4517F5065C2f1c5508DD67dd1db95227cA87Abe8",
                "TRON": "TKqQ7zuL7yKp1NWuhGpoXTDiE3j2qiAbRE"
            }
        },
        "timestamp": 1667394094096,
        "hash":"0x70e430bca6ba4f60c6ac5fcf6a07942132f9d84b8b265fbb220285c53589b8c4",
        "signature": "0x991dbfd5226d65d209d9a934787e27e5b159619578b34e31a4122514b10e9358124b77ae2b266f0100bc1b91470ffe063ac4495fd243526495a2be1008c6633a1c"
    }
}
```

{% endtab %}
{% endtabs %}

⚠️⚠️⚠️ Notice ⚠️⚠️⚠️

signer: 0x6eef5ad82cf83f9e60d2e96ee2029dc17c7b6612

signature data: `Access TransitSwap for a trusted data: + hash`

eg:&#x20;

{% hint style="info" %}
Access TransitSwap for a trusted data:0x9e30f587c47c65791cd58fe4d6f2e889a13d6d8f22623c65960fb625f95e13c2
{% endhint %}

Verifiable signature to ensure data is TransitSwap returned. Also can check if time is within range(eg: 30s).

sign utils 👉 <https://www.npmjs.com/package/@metamask/eth-sig-util>

hash utils 👉 <https://www.npmjs.com/package/ethers>

```
const sigUtils = require("@metamask/eth-sig-util")
const ethers = require("ethers")
const routers = [..data.contracts.Router]
const approves = [..data.contracts.Approve]
//if TRON,need convert base58 to hex
const hash = ethers.utils.solidityKeccak256(["address[]", "address[]", "uint256"], [routers, approves, timestamp])
const data = "Access TransitSwap for a trusted data:" + hash
const signer = sigUtils.recoverPersonalSignature({data:data,signature:signature})
if (signer == "0x6eef5ad82cf83f9e60d2e96ee2029dc17c7b6612") {
    //code
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.transit.finance/reference/api-reference/transitswap-contracts.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.