Atomic Entra SSO ToolkitIdentity Testing Platform
SAML & OIDC testing for Microsoft Entra ID
A purpose-built lab for identity engineers. Configure test service providers, fire real auth flows against Entra, inspect assertions and tokens, and validate claim rules — all without touching production.
Real Auth Flows
Initiate SP-initiated and IdP-initiated SAML flows and OIDC authorization code flows against a live Entra tenant.
Claims Inspector
Decode SAML assertions and OIDC tokens instantly. See every claim, attribute, and value returned by Entra.
Rule Validation
Define expected claims and run assertions automatically. Get a clear PASS/FAIL on every authentication attempt.
Free Tools — No Account Required
Claims Inspector
Paste a raw SAML assertion or OIDC token below to decode it instantly. Nothing is sent to the server — all decoding happens in your browser.
⚠ Testing Tool Only — AtomicEntra is designed for identity engineers to test SAML and OIDC integrations in a lab environment. Do not use it with production tenant credentials, real user data, or in environments where security or compliance requirements apply. No guarantees are made about data retention, availability, or security.