AI Security Gateway · Now in GA

Govern AI Agent Access.
Zero Credential Exposure.

4Keyless is the security gateway between your AI agents and corporate systems. Enforce access policies, inject auth transparently, and audit every action — without exposing a single secret.

100%
Credential isolation
<100ms
Proxy overhead
Multi
Tenant isolation
Ed25519
Signed audit logs
1 Request
2 Policy
3 Inject
4 Audit
4keyless proxy — live traffic
// [1] AI Agent request arrives
Proxy-Authorization: 4Keyless ak_prod_x9k2m...
// [2] Evaluating policy...
agent: support-bot-v2 → target: crm.internal
policy: ALLOW → injecting credentials...
// [3] Credentials injected from Vault
Authorization: Bearer ey•••••••••••••••• ← agent never sees this
// [4] Request forwarded. Audit log signed.
audit_log: { agent, target, decision:"allow", ts, sig }
Request intercepted · Policy: ALLOW · Credential: injected · Log: signed
AI Agent (no secrets)
Protected system
Setup in under 5 minutes
From registration to first protected agent — full walkthrough
🎬 Video coming soon · In production
The Problem

AI agents need access.
You can't trust them with secrets.

  • Giving raw credentials to agents leaks secrets into prompts and logs
  • No governance over which agent accesses which system
  • Zero audit trail for compliance or incident response
  • Custom auth flows (SSO, TOTP, form logins) are impossible to automate safely
The Solution

4Keyless acts as the secure
intermediary — always.

  • Credentials stay in Vault — agents receive zero plaintext secrets
  • Fine-grained ALLOW/BLOCK on every plan; ASK (human approval) on Growth+
  • Every request produces a signed, immutable audit log entry
  • Script Actions (Starter+) adapt complex auth flows without touching legacy systems
Platform capabilities

Everything security teams need
to govern AI access

Built for zero-trust environments where AI automation meets regulatory compliance.

Credential Isolation

Secrets live in HashiCorp Vault, encrypted at rest with AES-256-GCM. AI agents never see plaintext credentials — not even in transit.

Access Policies

Define ALLOW and BLOCK on every plan. ASK (human-in-the-loop approval from the admin panel) unlocks on Growth and above.

Immutable Audit Logs

Every proxy decision generates a cryptographically signed log entry. Filter by agent, system, decision type, or date. Built for SOC2 and compliance reviews.

Script Actions

Write JavaScript actions to transform request/response traffic (Starter plan and above). Handles SSO redirects, TOTP injection, legacy form logins — all running in an isolated sandbox.

Multi-Tenant RBAC

Full tenant isolation at the database level. Role-based access with viewer, operator and admin — plus MFA for all users.

Real-time Notifications

ASK-mode requests raise an approval notification for the designated operator right in the admin panel. Approve or deny access in seconds.

Marketplace Blueprints

Install pre-configured SaaS integrations, auth scripts, actions, and policies in a single click. Map required credentials to slots and receive clean version updates.

Exit Proxies (IP Rotation)

Route outbound request traffic per Target System through SOCKS5, HTTP, or HTTPS exit proxies. Rotate IPs, bypass geo-restrictions, and evade rate limits easily.

MCP Unified Gateway

Natively speak the Model Context Protocol. Expose all your tools aggregate-style at a single endpoint (mcp.4keyless.io/mcp) for Cursor and Claude Desktop with per-tool policies.

Simple by design

Up and running in minutes

4Keyless sits between your AI agents and your systems. No code changes required on either side.

1

Browse the Blueprint Marketplace

Select pre-configured integrations from the Blueprint Marketplace to provision systems, scripts, and default access policies in a single click.

2

Link credentials & customize policies

Bind required credential slots safely to HashiCorp Vault. Adjust access rules to ALLOW, BLOCK, or ASK mode to control agent execution.

3

Route proxy or MCP clients

Point your agent's HTTP proxy or MCP client to the managed gateway. Access is evaluated, authenticated, and logged in under 100ms.

🤖
AI Agent
sends request via proxy
🛡️
4Keyless Proxy
evaluate · inject · log
🏢
Target System
authenticated request
🔐
HashiCorp Vault
secrets never exposed
Use cases

Built for teams operating
AI at enterprise scale

🏦

Fintech & Regulated Industries

Meet SOC2, ISO 27001, and LGPD requirements. Every AI access is logged, signed, and auditable. Block sensitive systems by default, allow-list only what's needed.

Compliance Audit trail
⚙️

DevOps & Platform Teams

Onboard AI automation agents to internal tools without sharing credentials. Centralize governance in one admin panel instead of distributing secrets across teams.

Centralized control Fast onboarding
🔬

AI Engineering Teams

Give agents standardized access to corporate APIs and legacy SaaS. Script Actions handle complex auth flows (OAuth, TOTP, form login) without modifying target systems.

Script Actions Legacy systems
⚖️

Legal & GovTech

Let agents reach courts and government portals — PJe, e-SAJ, Gov.br and more — with ICP-Brasil, eIDAS and PIV/CAC certificates injected at the proxy. The private key never leaves the vault.

Certificates PJe · e-SAJ
Security architecture

Zero Trust,
all the way down

Every design decision in 4Keyless follows Zero Trust principles. AI agents are untrusted clients. Access is never assumed — it's verified at every layer.

AES-256-GCM at rest, TLS 1.3 in transit
mTLS between all internal services. Secrets only decrypted inside the proxy memory space.
Fail-closed by default
If approval timeout expires or any error occurs, access is denied. Never fail open.
Ed25519 signed audit logs
Every log entry is cryptographically signed. Tampering is detectable. Verifiable chain of custody.
Isolated sandbox for Script Actions
Auth scripts run in an isolated sandbox. No filesystem, no network, no cross-tenant access.
🔒
SOC 2 Ready
Audit log + access control architecture aligns with SOC 2 Type II requirements
🌐
LGPD / GDPR
Data residency controls. Tenant isolation. No cross-tenant data access.
🔑
RBAC + MFA
Role-based access (viewer, operator, admin) with enforced MFA for every user.
🔑
Vault Native
HashiCorp Vault integration out of the box. Secrets encrypted with AES-256-GCM.
AI + human access

Provision access for AI agents
and human team members

The same credentials, policies and audit trail govern both your automations and the people on your team — no secret ever leaves the vault.

🤖

AI agents

Point any agent's HTTP proxy or MCP client at the 4Keyless gateway. Credentials are injected on the fly, policies are enforced per request, and every call is logged — the model never sees a secret.

🧩

Human agents

Give people on your team the same governed access through the 4Keyless Chrome extension. They sign in to protected systems without ever seeing or copying the credential — under the same policies and the same audit trail.

Transparent pricing

Start free — no credit card required.

Start free. Upgrade from $19.99/mo when you need more.

Full proxy engine on every plan. No hidden fees.

$0
Free
1 agent · 2 systems · 1 GB/mo
$19.99
Starter / mo
3 agents · Script Actions
$99.99
Growth / mo
20 agents · ASK policies
Custom
Enterprise
SAML SSO · SLA · Support

Full feature comparison →

Frequently asked questions

4Keyless

Stop giving your AI agents
the keys to the kingdom.

Start free — no credit card required.
Your first protected agent can be live in under 5 minutes.

Free plan included · Cancel anytime · No credit card required