Salus is a Y Combinator W26 company building a runtime validation platform that inspects and blocks AI agent actions before they execute. The system wraps around agents to check actions against policies, maintain evidence caches, and provide structured feedback enabling agents to self-repair. Its launch materials report that 58% of blocked actions recover and complete the task correctly, with benchmarks showing meaningful cost reduction and misalignment reduction. The company is based in the San Francisco Bay Area and was founded in 2025.
Salus
ActiveGuardrails to validate your agent's actions before they execute
Total raised
$500K
1 round
Stage
Seed
Jan 2026
Team
1-10
since 2026
Pricing
—
Founded
2026
Palo Alto, United States
Agent-ready
—
Runtime validation that inspects AI agent actions before they execute
Ability to block actions that violate defined policies
Policy enforcement layer wrapped around agents
Evidence caches that ground actions in supporting data
Structured feedback that enables agents to self-repair
Designed so blocked actions can be retried and recovered
Reported 58% recovery rate on blocked actions per launch materials
Benchmarks reporting cost and misalignment reduction
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2026 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What is Salus?
- Salus is a runtime guardrail platform that validates and blocks AI agent actions before they execute, enforcing policies and grounding actions in evidence.
- How does it help agents recover?
- It provides structured feedback that enables agents to self-repair; the company's launch materials report that 58% of blocked actions recover and complete correctly.
- What does grounding actions in evidence mean?
- Salus maintains evidence caches so that an agent's proposed actions can be checked against supporting data before they run.
- Who would use Salus?
- Teams deploying AI agents that need runtime guardrails to validate and block risky actions before execution.
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