UDIN

Overview

The UDIN API category provides comprehensive verification services for Unique Document Identification Numbers (UDIN) issued by professional bodies and regulatory authorities. This category enables secure authentication and retrieval of detailed professional credentials, including certificate information, firm details, financial particulars, and professional status verification. The APIs in this category implement a robust two-factor authentication workflow that ensures data integrity while providing access to rich professional information essential for KYC compliance and professional verification processes.

Category Details

Parent Category: Root
APIs in this category: UDIN Send OTP, UDIN Submit OTP

Key Capabilities

Main Functionality

This category provides secure UDIN verification through multi-factor authentication, enabling businesses to validate professional credentials and access comprehensive professional data including certification details, financial information, and regulatory compliance status.

Secure OTP Delivery

Initiates verification workflows by sending OTPs to registered mobile and email addresses, creating secure client sessions with unique identifiers for tracking verification processes.

Dual Authentication Validation

Validates both mobile and email OTPs to ensure maximum security and authenticity before granting access to sensitive professional credential data.

Professional Data Retrieval

Returns comprehensive professional information including certificate types, firm details, financial particulars, signing dates, and professional status upon successful verification.

Common Use Cases

Financial Services

Professional Services

Digital Platforms

KYC compliance for professional service providers and consultants

Verification of chartered accountants, financial advisors, and auditors

Due diligence processes for loan applications and financial partnerships

Regulatory compliance checks for investment advisory services

Integration Considerations

Best Practices

Implement proper session management using the client_id returned from the Send OTP endpoint

Handle OTP expiration gracefully with appropriate user messaging and retry mechanisms

Store and process sensitive professional data in compliance with data protection regulations

Implement rate limiting to prevent abuse of OTP generation endpoints

Important Limitations

OTP codes have limited validity periods and should be submitted promptly after generation

Failed OTP attempts may result in temporary account lockouts for security purposes

Professional data availability depends on the UDIN holder's registration status and data sharing preferences

API rate limits apply to prevent abuse and ensure service availability for all users

How APIs in this Category Work Together

The UDIN APIs are designed to work in a sequential two-step verification process that ensures secure access to professional credential data.

Key Integration Patterns:

UDIN Send OTP + UDIN Submit OTP: Sequential workflow where the first API initiates verification by sending OTPs, and the second API validates these OTPs to retrieve professional data

Client Session Management: Both APIs use a shared client_id system that maintains session continuity throughout the verification process

Multi-Channel Authentication: The workflow validates credentials across both mobile and email channels for enhanced security

The complete verification workflow begins with the Send OTP API, which generates OTPs sent to the professional's registered mobile and email addresses while creating a unique client session. The Submit OTP API then validates both OTP codes and, upon successful verification, returns comprehensive professional information including certificate details, financial data, and regulatory status. This two-step process ensures that only authorized users can access sensitive professional credential information while maintaining the highest security standards.

The UDIN category complements other verification and KYC API categories to provide comprehensive identity and professional verification solutions.

Related Categories include:

PAN Verification: Used alongside UDIN APIs to cross-verify professional identity with tax identification numbers

Aadhaar Verification: Provides additional identity verification layer when combined with professional credential checks

GST Verification: Complementary for business verification when validating professional service providers with registered businesses

These categories work together to create comprehensive verification workflows where UDIN APIs validate professional credentials while other verification categories confirm personal identity, tax compliance, and business registration status. This integrated approach is particularly valuable for financial institutions, professional marketplaces, and regulatory compliance processes that require multi-layered verification of professional service providers.

Overview#

Key Capabilities#

Common Use Cases#

Integration Considerations#

How APIs in this Category Work Together#

Related Categories#

Overview

Key Capabilities

Common Use Cases

Integration Considerations

How APIs in this Category Work Together

Related Categories