> ## Documentation Index
> Fetch the complete documentation index at: https://cobo-docs-feature-cobo-cli.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Signed Messages By Request ID

> <Note>This content applies to WaaS 1.0 only. We highly recommend that you upgrade to [WaaS 2.0](https://www.cobo.com/developers/v2/guides/overview/introduction).</Note> This endpoint returns a JSON response containing signed messages information for a list of request IDs. The response includes the request ID, Cobo ID, signature and other relevant information.

<Note>This API is only intended for MPC web3 wallets and does not support MPC send/receive wallets.</Note>

#### Request

<ParamField query="request_ids" type="String" required>Sign message request IDs; separated by commas; the number of IDs must be greater than 0 and less than 50</ParamField>

#### Response

<ResponseField name="success" type="bool">request successful or failed</ResponseField>

<ResponseField name="result" type="object">
  <Expandable title="object">
    <ResponseField name="sign_messages" type="object[]">
      <Expandable title="object">
        <ResponseField name="request_id" type="String">Unique request ID</ResponseField>
        <ResponseField name="cobo_id" type="String">Unique ID in Cobo</ResponseField>
        <ResponseField name="signature" type="String">Signature</ResponseField>
        <ResponseField name="chain_code" type="String">Chain code</ResponseField>

        <ResponseField name="coin_detail" type="object">
          <Expandable title="object">
            <ResponseField name="coin" type="String">Coin code</ResponseField>
            <ResponseField name="chain_code" type="String">Chain code</ResponseField>
            <ResponseField name="display_code" type="String">Abbreviation (reference only, subject to change)</ResponseField>
            <ResponseField name="description" type="String">Full name (reference only, subject to change)</ResponseField>
            <ResponseField name="decimal" type="Int">Decimal precision</ResponseField>
            <ResponseField name="can_deposit" type="Bool">Whether deposit is supported</ResponseField>
            <ResponseField name="can_withdraw" type="Bool">Whether withdraw is supported</ResponseField>
            <ResponseField name="confirming_threshold" type="Int">Number of confirmations required (may fluctuate)</ResponseField>
          </Expandable>
        </ResponseField>

        <ResponseField name="sign_version" type="Int">Sign version, EIP-191: 1, EIP-712: 2</ResponseField>
        <ResponseField name="from_address" type="String">From address</ResponseField>
        <ResponseField name="extra_parameters" type="Json">raw info of the message to be sign</ResponseField>
        <ResponseField name="created_time" type="Int">Creation time of the transaction</ResponseField>
      </Expandable>
    </ResponseField>
  </Expandable>
</ResponseField>

<RequestExample>
  ```python Python
  request(
      "GET",
      "/v1/custody/mpc/sign_messages_by_request_ids/",
      {
          "request_ids": "1690349242683,1690349242684",
      },
      api_key, api_secret, host
  )
  ```

  ```javascript JavaScript
  coboFetch('GET', '/v1/custody/mpc/sign_messages_by_request_ids/', {
      "request_ids": "1690349242683,1690349242684",
  }, api_key, api_secret, host)
      .then(res => {
          res.json().then((data)=>{
              console.log(JSON.stringify(data, null, 4));
          })
      }).catch(err => {
          console.log(err)
      });
  ```

  ```go Go
  Request("GET", "/v1/custody/mpc/sign_messages_by_request_ids/", map[string]string{
      "request_ids": "1690349242683,1690349242684",
  })
  ```
</RequestExample>

<ResponseExample>
  ```json
  {
    "success": true,
    "result": {
      "sign_messages": [
        {
          "request_id": "1690349242683",
          "cobo_id": "20230726132723000341052000008222",
          "signature": "0x59328f02d00660d6c44d81e5bae985d2651614b5ee1e16764fd685530791748561b1f941a147f4e4ade4320b1c1d95179f9e058e622e632c020efbc476b2f9981c",
          "chain_code": "ETH",
          "coin_detail": {"coin": "ETH", "chain_code": "ETH", "display_code": "ETH", "description": "Ethereum Sepolia Testnet", "decimal": 18, "can_deposit": true, "can_withdraw": true, "confirming_threshold": 64},
          "from_address": "0xeea5e4a7c69e4d747a693b6fbd4211ae4843da39",
          "sign_version": 1,
          "extra_parameters": "{\"message\": \"YWFhYQ==\"}",
          "created_time": 1726026713801
        }
      ]
    }
  }
  ```
</ResponseExample>