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POST
/
v4
/
cdsl
/
fetch
/
{session_id}
/
verify
CDSL CAS Fetch - Step 2 (Verify OTP & Get Files)
curl --request POST \
  --url https://api.casparser.in/v4/cdsl/fetch/{session_id}/verify \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "otp": "123456",
  "num_periods": 6
}
'
{
  "status": "success",
  "msg": "Fetched 6 CAS files",
  "files": [
    {
      "filename": "CDSL_CAS_1234567890123456_NOV2025.pdf",
      "url": "https://cdn.casparser.in/cdsl-cas/session-id/CDSL_CAS_1234567890123456_NOV2025.pdf"
    }
  ]
}

Documentation Index

Fetch the complete documentation index at: https://casparser.in/docs/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
x-api-key
string
header
required

Your API key for authentication. Use sandbox-with-json-responses as Sandbox key.

Path Parameters

​
session_id
string
required

Session ID from Step 1

Body

application/json
​
otp
string
required

OTP received on mobile

Example:

"123456"

​
num_periods
integer
default:6

Number of monthly statements to fetch (default 6)

Example:

6

Response

CAS files fetched successfully

​
status
string
Example:

"success"

​
msg
string
Example:

"Fetched 6 CAS files"

​
files
object[]