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Alter (YC S25) — Privileged access management for AI agents

Alter appears in Y Combinator's company directory in the Summer 2025 batch, listed 2025-07-14. Privileged Access Management for AI Agents.

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Alter: Accepted into Y Combinator Summer 2025

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Alter

New accelerator entry · 2025-07-14 · the record

Summer 2025
batch
2
people
Early
stage
United States of America
region
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In their words

Alter is a zero-trust identity and access control platform purpose-built for AI agents. It wraps every tool call in strong authentication, fine-grained authorization, and real-time guardrails, so agents can move fast without breaking things. Each request is verified at the parameter level, authorized against granular policies, executed with least-privilege access, and fully audited in real time. Unsafe actions, whether it’s a rogue DROP TABLE or a payment above policy limits, are blocked before they touch production. Behind the scenes, Alter manages credentials, issuing ephemeral, scope-narrowed access for every interaction, then rotating or expiring it in seconds. The result: no long-lived secrets, no blind spots, and no surprises in audit. With Alter, teams can move fast on AI agent initiatives while staying fully compliant with SOC 2, HIPAA, GDPR, and internal security standards. A CISO-ready dashboard delivers real-time visibility, detailed audit logs, and compliance-ready controls, removing silos, eliminating excessive permissions, and providing complete oversight of every agent workflow.

What the record says

BatchSummer 2025
Announced2025-07-14
StageEarly
StatusActive
Team size2
IndustryB2B
Sub-industryB2B -> Security
SectorsAIOps, Developer Tools, DevSecOps, Security, AI
RegionsUnited States of America, America / Canada
BasedNew York City, NY, USA
HiringNo
Sitehttps://alterauth.com
Previously known asAlter AI

The full profile

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If you're behind Alter: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. FoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry.

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Permanent URL: https://mentionfox.com/funding/yc-alter
Last updated 2026-09-26
Primary record: Y Combinator directory entry
Alter (YC S25) — Privileged access management for AI agents. MentionFox, 2026-09-26. https://mentionfox.com/funding/yc-alter