Parsing CAS PDFs

Overview

CAS Parser extracts structured data from Consolidated Account Statement (CAS) PDFs issued by Indian depositories and registrars.

Supported CAS types

Source	Format	Password	Coverage
CDSL	eCAS from www.cdslindia.com/cas/logincas.aspx	Encrypted PAN	All holdings (CDSL + NSDL)
NSDL	eCAS from nsdlcas.nsdl.com/ecas/ecas.php	Encrypted PAN	All holdings (NSDL + CDSL)
CAMS	CAS from camsonline.com	PAN number	Mutual funds only
KFintech	CAS from kfintech.com	PAN number	Mutual funds only

Use /v4/smart/parse — it auto-detects the CAS type and applies the correct parser.

Cross-depository coverage: CDSL and NSDL eCAS statements contain holdings from both depositories (CDSL + NSDL), not just the issuing depository. This includes demat and non-demat assets across all accounts.

Parse a PDF file

import requests

response = requests.post(
    "https://api.casparser.in/v4/smart/parse",
    headers={"x-api-key": "YOUR_API_KEY"},
    files={"file": open("cas.pdf", "rb")},
    data={"password": "ABCDE1234F"}
)

data = response.json()

const form = new FormData();
form.append('file', fs.createReadStream('cas.pdf'));
form.append('password', 'ABCDE1234F');

const response = await fetch('https://api.casparser.in/v4/smart/parse', {
  method: 'POST',
  headers: { 'x-api-key': 'YOUR_API_KEY' },
  body: form
});

const data = await response.json();

curl -X POST https://api.casparser.in/v4/smart/parse \
  -H "x-api-key: YOUR_API_KEY" \
  -F "file=@cas.pdf" \
  -F "password=ABCDE1234F"

Parse from URL

If your CAS PDF is hosted online:

response = requests.post(
    "https://api.casparser.in/v4/smart/parse",
    headers={
        "x-api-key": "YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "pdf_url": "https://example.com/cas.pdf",
        "password": "ABCDE1234F"
    }
)

Response format

All CAS types return a unified JSON structure:

{
  "meta": {
    "cas_type": "CDSL",
    "statement_period": {
      "from": "2024-01-01",
      "to": "2024-01-31"
    },
    "generated_at": "2024-02-01T10:30:00Z"
  },
  "investor": {
    "name": "John Doe",
    "pan": "ABCDE1234F",
    "email": "john@example.com",
    "mobile": "9876543210",
    "address": "123 Main St, Mumbai",
    "pincode": "400001",
    "cas_id": "CAS123456"
  },
  "summary": {
    "total_value": 2500000.00,
    "accounts": {
      "demat": {
        "count": 2,
        "total_value": 1500000.00
      },
      "mutual_funds": {
        "count": 5,
        "total_value": 900000.00
      },
      "insurance": {
        "count": 1,
        "total_value": 50000.00
      },
      "nps": {
        "count": 1,
        "total_value": 50000.00
      }
    }
  },
  "demat_accounts": [
    {
      "demat_type": "CDSL",
      "dp_id": "12345678",
      "dp_name": "HDFC Bank",
      "client_id": "12345678901234",
      "bo_id": "12345678901234",
      "value": 1500000.00,
      "linked_holders": [...],
      "holdings": {
        "equities": [...],
        "corporate_bonds": [...],
        "government_securities": [...],
        "aifs": [...],
        "demat_mutual_funds": [...]
      },
      "additional_info": {...}
    }
  ],
  "mutual_funds": [
    {
      "folio_number": "1234567890",
      "amc": "HDFC Mutual Fund",
      "registrar": "CAMS",
      "value": 450000.00,
      "linked_holders": [...],
      "schemes": [...],
      "additional_info": {...}
    }
  ],
  "insurance": {
    "life_insurance_policies": [...]
  },
  "nps": [...]
}

Asset classes extracted

CAS Parser extracts 9 asset classes from your CAS:

Asset Class	Source	Fields
Equities	CDSL, NSDL	ISIN, name, units, value
Mutual Funds (Demat)	CDSL, NSDL, CAMS, KFintech	ISIN, scheme, units, NAV
Mutual Funds (Non-Demat)	CAMS, KFintech	Folio, scheme, units, NAV, transactions
Corporate Bonds	CDSL, NSDL	ISIN, issuer, coupon, maturity
G-Secs	CDSL, NSDL	ISIN, name, units, value
AIFs	CDSL, NSDL	ISIN, fund, units, value
Insurance	CDSL, NSDL	Policy, provider, sum assured
NPS	CDSL, NSDL	PRAN, tier, fund, units
ETFs	CDSL, NSDL	ISIN, name, units, value

Password requirements

CAS Type	Password Format	Example
CDSL eCAS	Encrypted PAN	`AXXXX1234X` (varies)
NSDL eCAS	Encrypted PAN	`AXXXX1234X` (varies)
CAMS CAS	Plain PAN	`ABCDE1234F`
KFintech CAS	Plain PAN	`ABCDE1234F`

For CDSL and NSDL eCAS, the password is an encrypted version of the PAN. It varies by statement. If parsing fails, check the email that delivered the CAS for the correct password.

Error handling

response = requests.post(...)
data = response.json()

if data.get("status") == "failed":
    error = data.get("msg")
    # Common errors:
    # - "Invalid password" — wrong PAN/encryption
    # - "Invalid PDF" — corrupted or scanned file
    # - "Unsupported format" — not a CAS file

Product Guides

Resources

Overview

Supported CAS types

Parse a PDF file

Parse from URL

Response format

Asset classes extracted

Password requirements

Error handling

Next steps

Gmail Import

CAS Generator

​Overview

​Supported CAS types

​Parse a PDF file

​Parse from URL

​Response format

​Asset classes extracted

​Password requirements

​Error handling

​Next steps

Gmail Import

CAS Generator

Overview

Supported CAS types

Parse a PDF file

Parse from URL

Response format

Asset classes extracted

Password requirements

Error handling

Next steps