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Put policy on every MCP tool call.

Route your agents' MCP traffic through PolicyLayer. Every tool call is checked against your policy before it runs and gets one of four outcomes.

AllowDenyRate-limitRequire approval

Deterministic policy, in the request path.

PolicyLayer sits between your agents and your MCP servers. Your agents keep their tools; you decide what each call can do. Core concepts →

AGENT
tool_call
POLICYLAYER
Enforces before execution
postgres.run_query read_only = true
ALLOW DENY RATE-LIMIT APPROVE
if allowed
MCP SERVER
01
Register server
Add Stripe, GitHub, Postgres, Slack, AWS, or any other MCP server.
02
Define policy
Set defaults, rate limits, denials, approvals, hidden tools, and argument-level conditions.
03
Issue grants
Give each person, agent, CI job, or environment its own scoped token tied to a named policy.
04
Connect client
Paste the PolicyLayer proxy URL into your MCP client config. Agents keep the same tools. PolicyLayer enforces your rules before calls execute.

Find the page for your situation.

Browse by the system your agents reach, or the kind of agent you run.

START HERE Rolling MCP out to the whole team Per-person scoped tokens instead of shared keys, one central policy, instant offboarding.
Org-wide rollout

Let agents act without letting them run wild.

Route your MCP servers through PolicyLayer and every tool call is checked against your policy before it runs: allow, deny, rate-limit, or require approval. Per-identity grants. Tamper-proof audit. Live in minutes.

Instant setup, no code required.

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