# Overview ## Introduction The Verifier API is a REST API designed to validate the authenticity and integrity of verifiable credentials (VCs) issued by trusted entities. It plays a critical role in ecosystems where secure and efficient verification of credentials is required, such as identity management, digital certification, and secure access control. A core concept in the relationship between the **Issuer and Verifier APIs** is the **trust** that **must** exist between these roles. While the information within a Verifiable Credential (VC) is cryptographically verifiable, this alone does not guarantee its accuracy. The Verifier relies on the Issuer being a trusted and reputable entity to confidently accept and validate the VCs it produces. ## Key Features * **Credential Validation**: Confirm that credentials are cryptographically signed and adhere to established standards. * **Revocation Status Checks**: Ensure that credentials are valid and have not been revoked by the trusted issuer. * **Real-Time Verification**: Enable seamless, instant checks in time-sensitive workflows. * **Integration Flexibility**: Designed to work with wallets, credential management systems, or custom verification pipelines. ## When to use Verifier API * **Secure Identity Verification**: Integrate real-time credential verification into your system to confirm the identity of users, ensuring the credentials presented are genuine and unaltered. * **Fraud Detection and Prevention**: Leverage the API to detect tampered or revoked credentials, preventing the use of invalid or fraudulent claims in your application. * **Compliance and Audit**: Ensure that credentials meet regulatory and organizational requirements by validating their structure, claims, and signatures. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.teranode.group/tng-identity-documentation/tng-identity-verifier/verifier-api/overview.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.