Kucoin Bulk Number Checker API: Fast Number Verification

Check the details of the Kucoin of the input global number, whether it is a Kucoin account

Upload Detection File Code example:

curl --location 'https://api.checknumber.ai/v1/tasks' \
--header 'X-API-Key: API-KEY' \
--form 'file=@"./number.txt"' \
--form 'task_type="Kucoin"'

Check Task Status Code example:

curl --location 'https://api.checknumber.ai/v1/gettasks' \
--header 'X-API-Key: API-KEY' \
--form 'task_id="task_id"'

Response for the upload detection file successful

{
    "task_id": "d4g8o46p2jvh04o9uolg",
    "status": "pending",
    "total": 2049,
    "estimated_amount": {
        "amount": "0.500000",
        "currency": "USD"
    },
    "message": "Task created successfully",
    "created_at": "2025-11-21T15:58:08.916446594Z"
}

Response for the processing status

{
    "created_at": "2025-11-21T08:27:09.933Z",
    "updated_at": "2025-11-21T08:27:10.241Z",
    "task_id": "d4g24nep2jvh04o9uoh0",
    "user_id": "wfi7wGPS4B4PdtTMox5Y",
    "status": "processing",
    "total": 2049,
    "success": 1024,
    "failure": 0
}

Provide a response indicating the task is completed and include the download URL for the results.

{
    "created_at": "2025-11-21T08:27:09.933Z",
    "updated_at": "2025-11-21T08:27:10.241Z",
    "task_id": "d4g24nep2jvh04o9uoh0",
    "user_id": "wfi7wGPS4B4PdtTMox5Y",
    "status": "exported",
    "total": 2049,
    "success": 2049,
    "failure": 0,
    "result_url": "https://wapic.s3.ap-southeast-1.amazonaws.com/externalcheck/d4g24nep2jvh04o9uoh0/d4g24nep2jvh04o9uoh0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256...",
    "actual_amount": {
      "amount": "2.000000",
      "currency": "USD"
    }
}

Upload file request url

POST https://api.checknumber.ai/v1/tasks

Upload file request parameters

Parameter	Description
file	file, Upload file, each line should contain one phone number in E.164 format
task_type	string, Task type, set to “Kucoin”

Check task status request url

POST https://api.checknumber.ai/v1/gettasks

Check task status request parameters

Parameter	Description
task_id	string, Task ID returned from task creation

Result Fields

Field	Description	Example
Number	Phone number in E.164 format	+12025551234
kucoin	Whether number has active Kucoin account	yes, no

Response Format

Field	Description
created_at	Timestamp when task was created
updated_at	Timestamp of last task status update
task_id	Unique task identifier
user_id	ID of user
status	Task status: pending: Queued and waiting processing: Currently processing exported: Results available for download failed: Task failed, the charged amount is refunded automatically
total	Total phone numbers processed
success	Numbers successfully identified
failure	Numbers that failed processing
result_url	(Optional) Download URL for results when status is exported
actual_amount	(Optional) Actual charged amount, returned after the task is settled
estimated_amount	(Create response) Estimated amount for the task; the final charge is settled when the task completes

Status Codes

Status	Description
200	free, Request successful (e.g. status query)
202	charge, Task created successfully; the estimated amount is deducted
400	free, Bad request: invalid parameters or file format, unsupported task type, or fewer valid entries than the minimum batch size
401	free, Missing or invalid API key
402	free, Insufficient account balance
404	free, Task not found
413	free, Uploaded file too large
500	free, Internal server error, retry later