// GLOSSARY -- AGENTIC FINANCE

What are Non-Custodial Controls?

1 min read Updated

Non-custodial controls enforce spending rules without taking custody of private keys or funds. The control layer validates transactions while the operator retains full wallet ownership.

WHY IT MATTERS

In traditional finance, controls imply custody — your bank holds your money. In crypto, this creates counterparty risk. Non-custodial controls decouple enforcement from key management.

The enforcing entity never has ability to move funds independently — it validates parameters before the key holder signs.

For agents: custodial means trusting a third party with funds. Non-custodial means keeping your keys while getting enforceable spending limits — best of both worlds.

HOW POLICYLAYER USES THIS

Non-custodial architecture is foundational to PolicyLayer. It never accesses keys, seed phrases, or holds funds — operating as a validation layer that approves/rejects based on policy, leaving signing authority with the owner.

FREQUENTLY ASKED QUESTIONS

How without custody?
Pre-signing validation. The engine evaluates each transaction before signing. Violations are never signed. Keys remain with the owner.
What if the control layer goes down?
The owner retains full fund access. Transactions either proceed unchecked (fail-open) or block until recovery (fail-closed), depending on config.
Always better than custodial?
For most agent setups, yes — preserves self-sovereignty while adding controls. Custodial is simpler but introduces counterparty risk and potential licensing requirements.

FURTHER READING

Enforce policies on every tool call

Intercept is the open-source MCP proxy that enforces YAML policies on AI agent tool calls. No code changes needed.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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