About
We build onchain systems — and the agents that operate them.
Overblocks is an engineering firm for onchain projects. We advise, design, and build — in your stack, under your custody, inside your risk limits — and stay on as the project evolves.
We are based in Herzliya, Israel, and work with teams worldwide.
How we think
First principles thinking
We integrate protocols by understanding why they work — incentive design, failure modes, upgrade behavior — not just what their interfaces expose.
Performance obsessed
Execution quality is decided in milliseconds. We engineer for latency without trading away reliability.
Market native
Order flow dynamics, liquidity mechanics, cross-venue microstructure — we build from inside the market, not adjacent to it.
System architecture
Mission-critical financial systems designed to keep working through volatility, reorgs, and the upgrade nobody announced.
We speak your stack
Solidity
Rust
Anchor
Foundry
Vyper
Huff
Move
Flashbots
AWS AgentCore
LangGraph
Pydantic
Mastra
CrewAI
Strands Agents
Google ADK
How an engagement works
Assess & architect
We start with your goals — the product or strategy you want to ship, the venues it needs, the custody and regulatory constraints it lives under — and turn it into an architecture you can defend internally before a line of code is written. Where agents will touch the system, that includes agent-risk frameworks: policy constraints, guardrail design, KYA.
Build & integrate
We design and build inside your stack: venue connectivity, execution and routing, simulation and verification, protocol and smart-contract engineering — interfaces agents can consume, with x402, intents, and machine-readable surfaces. Delivery is commonly simulation-first — solutions & strategies run against live chain state before any capital is exposed, then moves through staged rollouts with hard limits at each gate. You own what we build.
Operate & evolve
Protocols upgrade, venues drift, your project grows. We stay on as a partner — hardening systems in production within your existing monitoring and controls, and extending them as the market underneath keeps moving. The same monitoring and limits govern human and agent flow.
Agentic readiness
A service you can engage today, not a roadmap: agent-ready interfaces — x402 and facilitation, intents, guardrails — supervised agentic execution systems that operate inside the risk limits we deliver, and agent risk frameworks: the governance for letting agents touch capital.
Where your keys and data stand
Custody stays with you. The systems we deliver are designed to operate inside your custody arrangements and your risk limits — monitoring, failover, and kill-switches run within your existing controls, not around them. Engagement data is never research material: we do not publish client information, and the examples in any published research are public protocol behaviors, not client incidents.
Talk to us
Tell us what you're building — the venues you need, the systems you run, the problem in the middle.