// GLOSSARY -- WEB3 INFRASTRUCTURE

What is Fireblocks?

1 min read Updated

Fireblocks is an enterprise-grade digital asset custody and operations platform — providing institutional-quality key management, transaction signing, and workflow automation for crypto businesses.

WHY IT MATTERS

Fireblocks is the institutional infrastructure layer. It provides: MPC (Multi-Party Computation) key management (keys are never in one place), hardware-isolated signing, policy-based transaction approval, and DeFi integration via WalletConnect and direct contract interaction.

Banks, exchanges, fintech companies, and Web3 protocols use Fireblocks to manage billions in digital assets. Its policy engine enables configurable approval workflows: amount-based approvals, time-locks, multi-person sign-off, and address whitelisting.

For the AI agent ecosystem, Fireblocks represents institutional-grade custody that organizations will want to connect with agent policy layers like PolicyLayer.

HOW POLICYLAYER USES THIS

PolicyLayer and Fireblocks serve complementary roles. Fireblocks provides institutional custody and MPC key management. PolicyLayer provides on-chain policy enforcement for AI agents. Together, they create a full-stack solution: institutional-grade custody + AI-specific spending controls.

FREQUENTLY ASKED QUESTIONS

How does Fireblocks handle keys?
MPC (Multi-Party Computation) splits private keys into shares distributed across separate infrastructure. No single point has the complete key. Signing requires coordinated computation across shares.
Is Fireblocks custodial?
Semi-custodial. Fireblocks holds key shares on behalf of clients, but the MPC architecture means Fireblocks alone can't move funds. The client controls their key shares.
How much does Fireblocks cost?
Enterprise pricing, typically starting at $1000+/month. Designed for institutions, not individual users. The cost reflects enterprise-grade security, compliance, and support.

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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