Prevent hacks
before they happen
The Credible Layer is a network extension that enables apps to define security rules and prevents transactions from violating them.
Network level, rule-based security.
Every transaction is validated at the sequencer level, dropping any transaction that violates your security rules, before execution.
This deterministic approach means a quick, impassable system that has no false positives. No AI guesswork. Just binary enforcement that prevents hacks, using rules you define.
Easy to use.
Write security rules in Solidity that are faster and more expressive than in-contract require statements.
No new languages, no contract modifications, and no downtime during implementation.
Test and develop your assertions with our fork of Foundry to check when your assertion is triggered and invalidated.
Verifiable and transparent.
Users can verify exactly which assertions protect their favorite protocols, while developers can adopt battle-tested security rules from similar contracts.
Transparency creates a security network effect where each prevented hack strengthens the entire ecosystem.
First, define your rules
Select your use case.
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Write and test your assertions.
Store to assertion DA.
Next, submit for network enforcement
Register assertions
Network runs your assertions...
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...And drops each one that breaks your rules
Security that goes beyond heuristics
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Explainers and Guides
The Credible Layer - Simplified
Documentation for Developers
Product updates
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¹Phylax states that:
We have not received any National Security Letters or FISA court orders. We have not been subject to any gag order by a FISA court. We have not received any warrants from any government organization. We have not placed any backdoors in our software. We have not received or complied with any government requests regarding our project. We have not altered our code or services at the request of any government agency.
If this statement is removed from future versions of this document, it is likely that Phylax has been served with a government subpoena and is unable to communicate this fact.
This statement will be updated on the 1st of every month.
Last updated: July 3 2025