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DirectoryTeller

Teller

Open Source

About Teller

Teller is an open source identity and access management solution designed to streamline secure access within DevOps environments. It provides enterprises with tools to manage user identities, control permissions, and enforce access policies across cloud-native and hybrid infrastructures. By integrating identity management directly into the DevOps workflow, Teller helps organizations reduce security risks and improve operational efficiency.

Targeted at large enterprises with complex access control needs, Teller supports scalable and flexible identity governance. Its open source nature allows organizations to customize and extend the platform to fit specific security requirements and compliance mandates. Although the vendor’s website is currently under construction, the product’s focus on identity-access within DevOps positions it as a valuable tool for CIOs seeking to enhance security posture while maintaining agile development practices.

The primary value proposition of Teller lies in its ability to unify identity management with DevOps processes, enabling secure, auditable, and automated access control. This reduces manual overhead, mitigates insider threats, and supports compliance frameworks such as SOC 2.

How to evaluate Identity & Access Management

This is how the CIOPages Research Team evaluates this category. It is not an assessment of Teller. It comes from our Identity & Access Management (IAM) buyer guide.

30%
Authentication & SSO
Phishing-resistant MFA and passkeys/FIDO2 as first-class methods, device-bound credentials, SAML/OIDC/WS-Fed breadth, adaptive and risk-based step-up, device trust, session management and continuous evaluation, and graceful fallback and recovery that does not become the help-desk attack vector
20%
Lifecycle & Provisioning
HR-driven joiner-mover-leaver automation, SCIM and LDAP provisioning, depth and maintenance of the application connector catalog, self-service access requests, fast and reliable deprovisioning, and handling of contractors, partners, and seasonal populations
15%
Directory & Hybrid Architecture
Universal/cloud directory, coexistence with on-prem Active Directory and LDAP, hybrid agents and write-back, multi-domain and multi-forest support, data residency options, and the resilience and blast radius of the directory as a revenue-critical dependency
15%
Identity Threat Detection & Response (ITDR)
Post-authentication risk evaluation, session and token-theft detection, anomaly and impossible-travel signals, identity security posture (dormant accounts, over-privilege, MFA gaps), and how cleanly signals flow to and from the SIEM/XDR and trigger automated response
10%
Machine & Agent Identity
Issuance of scoped, short-lived credentials for service accounts, workloads, and first-party APIs (OAuth client-credentials, workload identity federation), discovery and governance of non-human identities, secrets handling, and emerging support for AI-agent identities acting on a user’s behalf
10%
Deployment, Integration & Commercial Fit
Pre-built connectors for your actual top applications (verified, not catalog-counted), migration tooling and coexistence, API and SDK quality, administrative usability, the pricing unit relative to your user and machine population, and the realism of support and professional services

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Quick Facts

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