Zero-Trust Identity and Access Control for AI Agents

Alter is an authorization and security gateway built specifically for AI agents, LLMs, and the tools they use. It provides a unified identity and access control layer that authenticates every request, enforces fine-grained permissions, and applies real-time guardrails to prevent sensitive data from leaking during LLM calls or tool interactions. Instead of the fragmented, ad-hoc security patterns common in early agent deployments, Alter centralizes authentication, authorization, OAuth management, and compliance enforcement into one platform.

The system acts as a security and policy control plane between agents, models, and external tools. Alter automatically manages OAuth tokens, injects them securely into API

calls, validates data flows, redacts PII, and blocks risky interactions before they occur. It also provides full observability and auditability with detailed identity-aware logs and exportable compliance reports for SOC 2, GDPR, HIPAA, and internal audits.

With native integrations for LangChain, CrewAI, LlamaIndex, and a growing library of preconfigured MCP servers, Alter secures modern multi-agent environments at scale while eliminating the operational burden of manual credential handling and bespoke guardrail implementations.