Alter
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
Y Combinator
yc-company-directory #3034Alter 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
sourceAlter is classified as AI agents from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.
Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.
Companies similar to Alter
A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.
Firezone
match 118Firezone connects your workforce to the computing resources they need, wherever they are, securely. Unlike traditional VPNs, Firezone uses a least-privileged approach to access control known as Zero Trust Access. Connect your identity provider and define granular policies in minutes, then rejoice in the IT support requests you won't receive due to our lightweight, WireGuard-powered clients which work great on all platforms.
shared extracted concept terms: acces, zero, trust, control; shared product terms: zero, trust, identity, acces; shared product theme: security and compliance; shared affiliation: Y Combinator
Multifactor
match 77The agentic era is here, but its foundation is dangerously insecure. A growing number of high-profile "AI agent gone rogue" security incidents make headlines each week. As enterprise adoption of agentic software has far outpaced the development of applicable cybersecurity solutions, CISOs have loudly voiced a growing need for verifiable, fine-grained security controls on complex multi-agent systems. That's why we built Multifactor. Multifactor offers best-in-class authentication, authorization,
shared extracted concept terms: authentication, authorization; shared product terms: control, authentication, fine, grain; shared product theme: security and compliance; same category: AI agents; shared affiliation: Y Combinator
Runtime
match 62Runtime (runtm.com) gives engineering teams control and visibility to enable anyone in their org to use coding agents securely. Eng leaders rolling out coding agents have no way to see what's happening, set boundaries, or safely let non-engineers use them. We provide sandboxed environments, session-level observability, and configurable guardrails so anyone on your team can ship with coding agents without breaking prod. We're live with fast-growing YC scaleups empowering their Engineers, PMs, des
shared extracted concept terms: guardrail; shared product terms: control, guardrail, so, fast; same category: AI agents; shared affiliation: Y Combinator
Signal
match 59Signal is an independent SaaS provider of data onboarding and real-time identity resolution.
shared extracted concept terms: real, time, identity; shared product terms: identity, real, time; shared product theme: security and compliance
Panelytic
match 55Payments, identity, and financial controls for autonomous machines.
shared extracted concept terms: control, identity; shared product terms: payment, identity, control; shared product theme: finance and payments, security and compliance; shared affiliation: Y Combinator
Sentry.co
match 16The zero trust password manager
shared product terms: zero, trust