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Security Book a call

Atlas Sylo

Let agents use real systems. Never hand them the keys.

An agent that needs GitHub, Slack or an internal API usually gets a copy of the key. Sylo keeps the key in the gateway, checks each request against your rules, and records every action.

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On a stone terrace above the clouds, a young woman in a green velvet jacket, the back half of her an empty polygon mesh, slides her ID card into the brass scanner in the gate pillar; the card projects a blank white page upward.

Control at the boundary

agent sandbox
Agent request outbound request
session token, no credentials Sylo policy
  • destinations and services
  • access rules
Keep credentials separate credentials outside the agent sandbox
Approved service

independent recordmaintained outside the agent

  1. Agent requestoutbound request
  2. Sylo policydestinations and servicesaccess rules
  3. Credentials are injected at the gateway.
  4. Approved service
  5. Record written
Retain an independent record
The agent holds a token with no credentials. The gateway checks the rule, adds the key, forwards the request and writes the record.

What Sylo does

Put control where actions happen.

Agent request Sylo policy Approved service

  • Connect

    Route the agent’s web and MCP traffic through Sylo. Works with E2B, Docker, Modal and any container.

  • Isolate

    The real key stays in the gateway. The agent holds a session token with no credentials in it.

  • Identify

    Every request resolves to an agent, a run, an owner and the person who started it.

  • Control

    Rules allow, watch or deny by service, destination, method or MCP tool. The stricter rule wins.

  • Explain

    A denied call returns the rule that matched, a request ID and the next step.

  • Stop

    Security can revoke a run and read the ordered record of request, decision and result.

Why Sylo

Control that sits outside the agent.

Works with agents you built elsewhere. Runs under every Atlas deployment. Controls only the traffic that passes through it.

What you can measure

Five numbers for the next security review.

Rows 1, 2 and 4 are true by design. Rows 3 and 5 are what you report back after a pilot.

  1. 1

    Standing credentials reachable by agents

    Count keys, tokens and service accounts in agent environments

    Zero on governed agents

  2. 2

    Agent actions with full attribution

    Agent, run, owner, initiating person on each call

    100% on governed path

  3. 3

    Out-of-policy calls blocked

    Count per month, by agent and destination

    Tracked; the breach proxy

  4. 4

    Time to revoke a misbehaving agent

    Seconds from decision to cut-off, one console

    Under a minute

  5. 5

    Security review time per new agent

    Hours: first agent vs next agent on an approved profile

    Down, measured per pilot

How it comes together

From first call to production.

  1. One protected request

    Install the SDK, create a session with credentials and rules, start the agent.

  2. Watch, then enforce

    Run rules in watch-only mode on real traffic, then switch to enforce.

  3. Save it as a profile

    Security reviews the rules once, then applies them to every run.

Explore where it fits

Bring one agent.

Tell us what it needs to call and what it must never do.