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POST
/
v1
/
wallets
/
{walletId}
/
sign-typed-data
Sign Typed Data
curl --request POST \
  --url https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "typedData": {
    "domain": {
      "name": "MyDApp",
      "version": "1",
      "chainId": 11155111,
      "verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
    },
    "types": {
      "Mail": [
        {
          "name": "from",
          "type": "address"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "contents",
          "type": "string"
        }
      ]
    },
    "primaryType": "Mail",
    "message": {
      "from": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B",
      "to": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC",
      "contents": "Hello, world!"
    }
  }
}
'
import requests

url = "https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data"

payload = { "typedData": {
        "domain": {
            "name": "MyDApp",
            "version": "1",
            "chainId": 11155111,
            "verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
        },
        "types": { "Mail": [
                {
                    "name": "from",
                    "type": "address"
                },
                {
                    "name": "to",
                    "type": "address"
                },
                {
                    "name": "contents",
                    "type": "string"
                }
            ] },
        "primaryType": "Mail",
        "message": {
            "from": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B",
            "to": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC",
            "contents": "Hello, world!"
        }
    } }
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    typedData: {
      domain: {
        name: 'MyDApp',
        version: '1',
        chainId: 11155111,
        verifyingContract: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC'
      },
      types: {
        Mail: [
          {name: 'from', type: 'address'},
          {name: 'to', type: 'address'},
          {name: 'contents', type: 'string'}
        ]
      },
      primaryType: 'Mail',
      message: {
        from: '0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B',
        to: '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
        contents: 'Hello, world!'
      }
    }
  })
};

fetch('https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'typedData' => [
        'domain' => [
                'name' => 'MyDApp',
                'version' => '1',
                'chainId' => 11155111,
                'verifyingContract' => '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC'
        ],
        'types' => [
                'Mail' => [
                                [
                                                                'name' => 'from',
                                                                'type' => 'address'
                                ],
                                [
                                                                'name' => 'to',
                                                                'type' => 'address'
                                ],
                                [
                                                                'name' => 'contents',
                                                                'type' => 'string'
                                ]
                ]
        ],
        'primaryType' => 'Mail',
        'message' => [
                'from' => '0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B',
                'to' => '0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC',
                'contents' => 'Hello, world!'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data"

	payload := strings.NewReader("{\n  \"typedData\": {\n    \"domain\": {\n      \"name\": \"MyDApp\",\n      \"version\": \"1\",\n      \"chainId\": 11155111,\n      \"verifyingContract\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\"\n    },\n    \"types\": {\n      \"Mail\": [\n        {\n          \"name\": \"from\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"to\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"contents\",\n          \"type\": \"string\"\n        }\n      ]\n    },\n    \"primaryType\": \"Mail\",\n    \"message\": {\n      \"from\": \"0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B\",\n      \"to\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\",\n      \"contents\": \"Hello, world!\"\n    }\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"typedData\": {\n    \"domain\": {\n      \"name\": \"MyDApp\",\n      \"version\": \"1\",\n      \"chainId\": 11155111,\n      \"verifyingContract\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\"\n    },\n    \"types\": {\n      \"Mail\": [\n        {\n          \"name\": \"from\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"to\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"contents\",\n          \"type\": \"string\"\n        }\n      ]\n    },\n    \"primaryType\": \"Mail\",\n    \"message\": {\n      \"from\": \"0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B\",\n      \"to\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\",\n      \"contents\": \"Hello, world!\"\n    }\n  }\n}")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://api.beta.getpara.com/v1/wallets/{walletId}/sign-typed-data")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"typedData\": {\n    \"domain\": {\n      \"name\": \"MyDApp\",\n      \"version\": \"1\",\n      \"chainId\": 11155111,\n      \"verifyingContract\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\"\n    },\n    \"types\": {\n      \"Mail\": [\n        {\n          \"name\": \"from\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"to\",\n          \"type\": \"address\"\n        },\n        {\n          \"name\": \"contents\",\n          \"type\": \"string\"\n        }\n      ]\n    },\n    \"primaryType\": \"Mail\",\n    \"message\": {\n      \"from\": \"0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B\",\n      \"to\": \"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC\",\n      \"contents\": \"Hello, world!\"\n    }\n  }\n}"

response = http.request(request)
puts response.read_body
{
  "signature": "a1b2c3d4e5f6..."
}

Authorizations

​
X-API-Key
string
header
default:sk_your_secret_key_here
required

Your partner secret key (server-side only)

Headers

​
X-Request-Id
string<uuid>

UUID for request tracing. Para returns one if omitted.

​
Idempotency-Key
string

Unique key for safe retries on POST endpoints. If a request with the same key is received within 24 hours, the original response is returned without re-executing. Recommended format: UUID v4. Max length 256 characters. Returns 422 if the same key is reused with a different request body. Returns 409 if a request with the same key is still being processed.

Maximum string length: 256

Path Parameters

​
walletId
string
required

Wallet ID

Example:

"0a1b2c3d-4e5f-6789-abcd-ef0123456789"

Body

application/json
​
typedData
object
required

Response

Signature

​
signature
string
required

Hex-encoded signature without 0x prefix.

Example:

"a1b2c3d4e5f6..."