Open-Source Verifiable Credentialing Stack for Digital Trust

Inji is an open-source, modular verifiable credential (VC) stack that enables governments, institutions, and ecosystems to issue, hold, present, and verify digital credentials in a secure, interoperable, and privacy-preserving manner.

Built as part of the broader Digital Public Infrastructure (DPI) ecosystem, Inji supports global standards and real-world deployments across sectors such as identity, education, agriculture, mobility, and public services.

Inji provides a complete end-to-end VC lifecycle, including:

• Credential Issuance
• Wallets for Holders (Web & Mobile)
• Verification & Presentation
• Cryptographic Trust & Key Management
• Interoperability across issuers, wallets, and verifiers

Inji is designed to work across jurisdictions, sectors, and ecosystems, while remaining configurable for local legal and policy contexts.

Below is an overview of Inji’s key modules, their purposes, functionalities, key features, and links to their respective GitHub repositories.

Credential issuance service for creating and managing verifiable credentials.

• Enables authorities to create and issue verifiable credentials.
• Supports various credential formats (e.g., W3C Verifiable Credentials(LDP_VC), IETF SD-JWT, MSO-MDOC).

• Support different cryptographic suites for signing credentials.
• Integration with external identity providers for authentication.
• Plugin-based implementation for extensibility.
  • If any existing service which issues Verifiable Credential is to be integrated, a plugin can be created for the same.
    • Refer VCIIssuance Plugin
  • If any existing service which manages the data which can be converted Verifiable Credential, a plugin can be created for the same.
    • Refer DataProvider Plugin
      • If data is in csv, CSVDataProviderPlugin can be referred.
      • If data is in postgres, PostgresDataProviderPlugin can be referred.
• User-friendly interface for data entry.
• Appointment scheduling and notifications.
• Data pre-verification to minimize errors during registration.

• Reference plugins
• Inji Certify

Holder wallets (Web & Mobile) that allow users to:

• Store credentials securely
• Share credentials with consent
• Present credentials using OpenID4VP

• Enables holders/users to download and store verifiable credentials.
• Supports various credential formats (e.g., W3C Verifiable Credentials(LDP_VC), IETF SD-JWT, MSO-MDOC).

• Inji Wallet - Mobile
• Inji Wallet - Web
• Mimoto - Backend for Inji Wallet

Verifier services and SDKs for:

• Requesting credential presentations
• Verifying signatures, schemas, and trust
• Supporting registry-backed trust (e.g., DeDi integration)

• Support various credential formats (e.g., W3C Verifiable Credentials(LDP_VC), IETF SD-JWT)
• Enables verifiers to request and verify credential presentations.

Inji Verify

Inji is built using modular libraries and SDKs that can be reused across different components or integrated into third-party applications. Reusable libraries for:

• OpenID4VCI & OpenID4VP
• Cryptographic operations
• QR-code–based credentials (Claim 169)
• Key discovery and VC verification

Inji supports standards-based trust models, including:

• DID-based key discovery (DID Web)
• OpenID4VCI & OpenID4VP
• Optional integration with global trust registries (e.g., DeDi Global)
• Policy-driven, configurable verification flows

This enables cross-domain, cross-border, and cross-ecosystem trust without centralization.

Inji supports a wide range of real-world use cases, including:

• National & foundational identity credentials
• Education certificates & skill credentials
• Farmer registries & agricultural programs
• Health, insurance, and social benefit access

Inji is built with and for the community. We welcome contributions across:

• Development
• Testing & QA
• Documentation
• UX & Design
• Architecture & Standards

👉 Get started by exploring issues or raising a PR

👉 Join discussions on community channels

• Technical Design Documentation
  • Inji Certify
  • Inji Mobile Wallet
  • Inji Web Wallet
  • Inji Verify
• Functional Documentation:
  • Inji Certify
  • Inji Mobile Wallet
  • Inji Web Wallet
  • Inji Verify
• Standards & Specifications:
  • OpenID for Verifiable Credential Issuance (OpenID4VCI) - Draft 13
    • 🔗 Specification (Draft 13): https://openid.net/specs/openid-4-verifiable-credential-issuance-1_0-13.html
  • OpenID for Verifiable Presentations (OpenID4VP) - Draft 23
    • 🔗 Specification (Draft 23): https://openid.net/specs/openid-4-verifiable-presentations-1_0-23.html
  • Selective Disclosure for JWTs (SD-JWT)
    • 🔗 IETF Internet-Draft: https://datatracker.ietf.org/doc/html/draft-ietf-oauth-selective-disclosure-jwt
  • ISO/IEC 18013-5:2021 – Mobile Driving Licence (mDL)
    • 🔗 ISO 18013-5 Overview: https://www.iso.org/standard/69084.html
    • ⚠️ Note: ISO documents are paid standards; only summaries are public.
  • W3C Verifiable Credentials Data Model v1.1
    • 🔗 W3C Recommendation: https://www.w3.org/TR/vc-data-model-1.1/
  • W3C Verifiable Credentials Data Model v2.0
    • 🔗 W3C Working Draft (latest): https://www.w3.org/TR/vc-data-model-2.0/
  • Bitstring Status List v2.0
    • 🔗 W3C Specification: https://www.w3.org/TR/vc-bitstring-status-list/
    • 🔗 Status List vocabulary: https://www.w3.org/ns/credentials/status/
  • Claim169 - QR Code based Verifiable Credentials
    • 🔗 169 - QR Code Specifications: https://docs.mosip.io/1.2.0/readme/standards-and-specifications/mosip-standards/169-qr-code-specification

Inji follows an open governance model with:

• Transparent roadmaps
• Public design discussions
• Community-led enhancements

• MOSIP – Foundational Identity Platform
• Sunbird – Digital Public Goods for registries & platforms
• DeDi Global – Trust registries & network-of-networks

• 💬 Community Updates & Advisories
• 🐙 GitHub Discussions

All core Inji modules are licensed under the Mozilla Public License 2.0. All reference Inji modules are licensed under the MIT License. Please look at the individual repositories for the correct license.

Inji — enabling trusted digital credentials, everywhere.