Secure Identity Broker for AI Agents

Zero-Trust Control for Autonomous Agents

Your team is already building autonomous workflows. Ephos lets you secure them without exposing raw API credentials to agents, tools, or developer environments by using zero-knowledge architecture, scoped tokens, and instant revocation.

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EPHOS Logo
Zero-Knowledge
RAM-Only Execution
Real-time Audit
STORE
Client-Side Encryption
Add your API key once. It's encrypted in your browser before it ever leaves your machine. Ephos stores an opaque blob it can't read.
ISSUE
Mint Scoped Tokens
Mint a scoped Ephos Token for each agent or developer. They get access to what they need — nothing more. You keep the master key.
EXECUTE
Ephos Enclave*
When an agent makes a call, Ephos decrypts the key into ephemeral memory for milliseconds, makes the request, and wipes it. The agent never sees the credential.
AUDIT
Full Attribution
Every call is logged with the token that made it, the endpoint it hit, and when. If something looks wrong, you know exactly where to look.

* Ephos Enclaves refer to our stateless V8 isolate architecture, providing strict process-level sandboxing and momentary memory lifetimes. They do not utilize hardware-level TEEs (e.g. Intel SGX).

Your team is already doing this.

Developers using Cursor, Claude, or any AI agent need credentials to get things done. Without a governed layer, they improvise — and improvised credential sharing is a breach waiting to happen.

Raw keys in agent configs

A developer pastes an OpenAI key into a Cursor rule or MCP config. It doesn't expire. It's not scoped. You don't know it's there until something goes wrong.

No visibility into what agents did

When an agent makes an API call with your credentials, there's no record anywhere you control. You find out something went wrong after the fact, with nothing to investigate.

No kill switch

Revoking a shared raw key means rotating it everywhere it lives — every developer's machine, every config file, every script. So you delay it. Then delay it again.

This isn't a hypothetical. It's the default behavior of every AI agent workflow that doesn't have a governed credential layer. Ephos adds that layer without slowing anyone down.

Everything you need to govern agent access.

Built for teams that are already using AI tooling and need visibility and control — without slowing anyone down.

Identity Broker

Issue one token per agent, per developer, per workflow. Each one is scoped to specific services and domains. If a token leaks, revoke it in one click — your underlying credentials are untouched.

const vault = new EphosVault({
  token: "et_live_8291...392",
  secret: "ps_key_9201...183"
});
await vault.init();
const result = await vault.execute({
  service: "GitHub",
  endpoint: "https://api.github.com/repos"
});

Instant Revocation

A developer leaves. An agent behaves unexpectedly. A token ends up in a repo. Revoke it immediately without touching anything else. No credential rotation. No downtime.

Asynchronous Auditing

Every gateway request is logged out-of-band — no latency impact, no gaps. Execution telemetry attributes every delegated request to a specific agent, developer, or workflow identity.

Organization-Wide Security Freeze

Instantly freeze or unfreeze delegated identities, revoke execution access, and contain compromised agent workflows across the organization.

WHY EPHOS

Built for agents, not just developers.

Legacy secret managers were designed to inject credentials into developer environments. Ephos is designed for the case where the credential consumer is autonomous — and you don't fully trust it.

CAPABILITY / FEATURE EPHOS INFISICAL DOPPLER PORTKEY KEEPER
Omni-Tool Proxy Secures API keys for LLMs AND external tools (Stripe, GitHub, AWS).
[ YES ]
[ YES ]
[ YES ]
[ NO ] LLM keys only
[ YES ]
Edge-Native SaaS Zero local infrastructure. No MITM proxies or custom CA certs to manage.
[ YES ]
[ YES ]
[ YES ]
[ YES ]
[ NO ] Requires local binaries
Zero-Knowledge Encryption Keys encrypted client-side. The server stores opaque encrypted credential material that cannot be decrypted without client-derived key material.
[ YES ]
[ NO ] Server KMS decryption
[ NO ] Server KMS decryption
[ NO ] Server-side storage
[ NO ] Shared decryption keys
Execution / Memory Security Master keys are NEVER injected into .env files or the agent's local memory.
[ YES ]
[ NO ] Injects to local .env
[ NO ] Injects to local .env
[ YES ]
[ MIXED ] Keeper injects to runtime
Native MCP Integration Agents automatically discover available keys as standardized "tools" via Model Context Protocol.
[ YES ]
[ NO ]
[ NO ]
[ NO ]
[ PARTIAL ]
Agent Attribution Logging Execution logs tag the specific agent instance (e.g. "via Cursor") for every proxy request.
[ YES ]
[ NO ]
[ NO ]
[ PARTIAL ]
[ PARTIAL ]

Why attacks fail.

Ephos assumes your agents will be compromised. The architecture is designed so that when they are, the blast radius is contained.

Attack scenario
Risk
Mitigation
AI tool stores your raw key
Agent config, system prompt, or third-party tool persists your credential
High
Tools receive only a scoped Ephos Token. Your raw credential never reaches them. Even if they persist the token, it's useless outside its whitelisted domains and can be revoked instantly.
Ephos database is compromised
Attacker exfiltrates the full Ephos database
High
Every stored credential is an AES-256-GCM encrypted blob. Without the client-derived key, brute force against 600,000 PBKDF2 iterations is computationally infeasible. The attacker gets nothing usable.
Agent is tricked via prompt injection
Malicious content in an agent's context manipulates it to exfiltrate credentials
High
The agent never possesses a decryptable credential — only a token. Domain enforcement blocks requests to any non-whitelisted host, even if the agent is coerced into making them. The secret stays in the ephemeral enclave.
Token leaks in logs or source code
An Ephos Token is accidentally committed or exposed
Medium
Tokens are scoped to specific APIs and domains — a leaked token can't access anything beyond its allowlist. Revoke it from the dashboard in seconds without touching your master credential.

Keep your agents running.
Stop exposing your credentials.

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