Give agents write access. Keep control.
Your agents are moving from read-only to write access on the systems that run your business — Jira, GitLab, calendars, support queues, and everything in between. When a background agent closes a thousand tickets or amends a contract, standard logs can't tell you which agent did it, in which session, and on whose behalf.
WriteGuard wraps your MCP servers to solve this. It identifies the agent, MCP client, and session behind every write, gates which write tools an agent can reach with a deny-by-default allow-list, labels the write visibly inside the destination application, and records the outcome in a central audit log. All with no changes to your MCP servers.
WriteGuard has been battle-tested on Cloudflare's own MCP fleet, across engineering, product, sales, and support. It’s available now in closed beta. Over the next few months, we will open WriteGuard to additional customers.
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Agentic identity
Every call is attributed to the specific agent, client, and session acting on a user's behalf — layered on top of the Access identity you already have.
Deny-by-default gating
Write tools stay off until you explicitly allow them. So new tools shipped upstream don’t become accidentally reachable by every agent in your org.
Visible labels + central audit
Agent writes are labeled inside the destination app and recorded in one queryable log across every MCP server you run.
Read the story behind WriteGuard
What WriteGuard provides
No server changes
Inherits your identity model
One log across every server
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