BlockZenithBlockZenith
Solutions · Engagements

Four practices. One delivery bar.

We run our engagements the way we run our labs: senior people, small teams, weekly demos, and artifacts you can put into prod on Friday.

How we work

A short, sharp ladder to production.

STEP 011 week · fixed price

Scoping sprint

We read the code, interview your team, and return a 10‑page memo with architecture, risks, scope options, and a price.

STEP 026 – 26 weeks · T&M or fixed

Build engagement

Small senior team runs the sprint. Weekly demo, weekly diff, weekly decision log. You own the code from day one.

STEP 03Monthly · elastic

Retainer / on‑call

Post‑launch: incident on‑call, new feature capacity, research continuity. Hand back the keys when you no longer need us.

DEFI
01
Stack
FoundryHalmosCertoraAnvilTenderlyEigenLayerSafeGnosis Chain

DeFi Engineering

Contracts, vaults & market infrastructure.

We design and ship production DeFi: lending, perps, AMMs, vaults, intent‑based routers and bridging. Audited, gas‑golfed, instrumented.

Deliverables
  • Protocol design docs + threat model
  • Audited Solidity / Vyper / ink! contracts
  • Monitoring + incident runbooks
  • Token & governance launch support
Signal
$1.4B+
TVL shipped
38
Audits passed
0
Post‑launch exploits
Brief us on a defi engineering project
DEFAI
02
Stack
PythonRustCUDANautilusFlashbots SUAVESP1Axiom

DeFAI Systems

Autonomous on‑chain finance.

Agentic traders, solvers and portfolio managers that execute policy, not prompts. Bounded, auditable, and adversarially stress‑tested.

Deliverables
  • Strategy spec in Zenith DSL
  • Backtest + forward‑test harness
  • Guardian & circuit‑breaker suite
  • Attested execution logs + replay
Signal
22
Strategies live
2.7
Avg. Sharpe
38 ms
Median execution
Brief us on a defai systems project
AGENTIC-AI
03
Stack
Claude 4GPT‑5Llama‑4LangGraphDSPyvLLMWeaviatePostgres‑pgvector

Agentic AI

LLM apps & agent swarms that ship.

From assistants to multi‑agent pipelines for ops, research, support and code. We build for retention and audit, not demoware.

Deliverables
  • Agent graph + tool contracts
  • Eval harness with regression gates
  • Observability: traces, cost, grounding
  • Fine‑tunes / RAG / memory systems
Signal
60+
Agents in prod
71%
Avg. ticket deflection
94%
Eval coverage
Brief us on a agentic ai project
TRADFI
04
Stack
FireblocksAnchorageCordaCantonChainalysisElliptic

TradFi Bridges

Where balance sheets meet blockspace.

RWA rails, custody integrations, settlement networks and compliance‑grade reporting for institutions moving into on‑chain finance.

Deliverables
  • Custody / qualified custodian integration
  • Tokenization framework + transfer agent logic
  • ISO‑20022 + on‑chain mapping
  • SOC‑2 / MiCA‑aligned evidence packs
Signal
11
Institutions served
$380M
RWA tokenized
T+0
Time‑to‑ledger
Brief us on a tradfi bridges project
Pricing

Transparent rates. No surprises.

Rates are starting points. We tune to shape, risk and urgency. Ask us.

Week‑zero

Scoping sprint

€24k
  • 1 principal + 1 senior engineer
  • Architecture memo + threat model
  • Risk & scope options
  • Fixed‑price build quote
Start here
Best for protocolsMOST POPULAR

Build · Squad

€85k / mo
  • 3 senior engineers + design
  • Weekly demo, diff, decision log
  • Audits coordinated with our partners
  • Runbook & on‑call handoff
Start here
Post‑launch

Retainer

€22k+ / mo
  • Elastic senior capacity
  • Incident on‑call rotation
  • Quarterly research continuity
  • Cancel in 30 days
Start here
Partners

Who we work with to ship.

Audits

Trail of Bits · Spearbit · Zellic · Veridise

Custody

Fireblocks · Anchorage · BitGo · Copper

Compliance

Chainalysis · TRM · Elliptic

Inference

Together · Fireworks · Anthropic · OpenAI

Legal

DLA Piper · Clifford Chance · Cooley

Hardware

YubiHSM2 · Ledger · Entrust nShield