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DeFi Development

In short

Design and ship any DeFi primitive (DEX, stablecoin, lending, vaults, perps, or staking) from proven, audited bases rather than starting from scratch. Engineering-led, with real TVL outcomes.

$120M → $730M
Balancer governance TVL
98%
fee reduction (Swarm Markets DEX)
7,000+
verified users (Swarm)
261%
ve8020 APR (Aethir)
Trusted by teams building on-chain

DeFi development is the design and engineering of decentralized-finance primitives: the exchanges, stablecoins, lending markets, vaults, and derivatives that let people trade, borrow, save, and earn on-chain without an intermediary. For protocols, DAOs, and funds launching or scaling a DeFi product, the risk is rarely the concept, it is the execution: novel smart contracts are expensive to audit and slow to harden, and most DeFi development shops have no track record of actually moving TVL after launch.

Most teams need one or two of these primitives; we build all of them, with the same senior engineers, on bases that are already audited and live in production.

Protofire is a blockchain development company that has shipped 250+ projects since 2016 across 60+ networks and 95+ protocols, so our DeFi development comes from a team that has put real DeFi into production and grown its TVL, not from a studio that ships a generic "DeFi app" template. When Balancer needed standardized vote-escrow infrastructure, we built it and governance-aligned TVL grew from $120M to $730M.

This page is a hub: below, each DeFi primitive gets a short description and a link down to its dedicated service page, so you can go as deep as you need on the one you're actually launching: a DEX, a native stablecoin, a yield-bearing dollar, a lending market, vaults, perps, staking, or a loyalty layer.

Every DeFi build is a stack we own end to end

Protofire delivers every layer as one accountable team, from protocol contracts through post-launch monitoring.

01

Protocol contracts

The forked, audited primitive: Uniswap V3 for DEXes, Liquity/Gravita/Prisma for CDP, Aave/Compound for lending, ERC-4626 for vaults.
02

Oracle and price layer

Chainlink/DIA price feeds and Proof of Reserve that gate minting, liquidation, and trading.
03

Liquidity and AMM layer

Pool mechanics, fee tiers, and liquidity bootstrapping that make a venue usable on day one rather than a dead pool.
04

Staking and incentives

Vote-escrow and emissions modules that align token holders with protocol liquidity and governance.
05

Indexing and subgraph

A The Graph subgraph that makes positions, reserves, yields, and governance actions queryable in real time.
06

Governance and safety

Safe multisig controls over admin parameters, strategy switches, and minting caps.
07

Monitoring and operations

Solvency bots, alerting, and optional post-launch operations for sustained TVL.
01

DeFi primitives we build

Concentrated-liquidity AMMs (Uniswap V3-style), plus order-book and hybrid venues, with the contracts, frontend, fee-tier and pool configuration, and liquidity bootstrapping that make a venue tradable on day one rather than a dead pool. We built Swarm Markets, the world's first BaFin-regulated DEX for crypto and tokenized stocks (Apple, Tesla), which cut fees 98%, onboarded 7,000+ verified users, and grew to 50+ trading pairs. See the DEX development page for the full build.

02

How a DeFi build works

1

Start from audited base

We fork a battle-tested, audited protocol (Uniswap V3 for DEXes, Liquity/Gravita/Prisma for CDP stablecoins, Aave/Compound for lending, ERC-4626 for vaults) instead of writing a novel protocol from scratch. The code fork is the easy part; the value is in everything after it.
2

Customize to your chain

Collateral and risk parameters, oracle integration, fee tiers, tokenomics, governance, and a branded frontend, all configured to your assets rather than a generic template.
3

Harden & audit

We threat-model the economic and oracle attack surface and pre-audit the code with Solhint, our open-source Solidity linter, before it reaches an external auditor, which usually shrinks audit findings and cost.
4

Deploy & bootstrap

Mainnet deployment, liquidity and TVL ramp-up, monitoring, and optional ongoing operations, so the primitive launches usable on day one.
03

What clients build with us

Launch a native DEX (concentrated-liquidity AMM)
Issue a chain-native CDP stablecoin
Add a yield-bearing dollar (ERC-4626)
Deploy lending & borrowing markets
Build tokenized vaults & yield-farming strategies
Launch a perpetual DEX
Add staking & ve-governance modules
Run on-chain loyalty & points campaigns
Bootstrap an entire DeFi ecosystem for a new L1/L2
04

An engineering-led DeFi development company since 2016

Protofire is a blockchain and DeFi development company with 250+ shipped projects across 60+ networks and 95+ protocols. We maintain Solhint (the Solidity linter used by 1M+ developers and built with Ethereum Foundation grants), serve as an official Safe Guardian, are a core contributor to Chainlink, and run a top-3 indexer in The Graph ecosystem.

Clients include Balancer, Aave, Chainlink, Maple Finance, and Swarm Markets. That means our DeFi primitives are forked from bases we know intimately, hardened with tooling we wrote ourselves, and shipped by engineers who have done it on mainnet before. Spun out of Altoros in 2016, we've shipped the full DeFi stack on mainnet: concentrated-liquidity DEXes, CDP and yield-bearing stablecoins, lending markets, ERC-4626 vaults, perpetual venues, and staking and ve-governance modules.

Because of that, the architecture we recommend for your protocol is one we have already designed, hardened, and operated in production, not a pattern lifted from a slide deck.

The proof is in outcomes: governance-aligned TVL grown from $120M to $730M across 41 protocols on Balancer (integration time cut 82%, TVL up 500% in six months); the world's first BaFin-regulated DEX for Swarm Markets (98% lower fees, 7,000+ users, 50+ pairs); 261% ve8020 staking APR at Aethir; StakeDAO's $50M+ TVL onboarded in 90 days; and Safe deployments securing $2B+ across 120+ EVM networks. We don't pitch a roadmap to DeFi, we point to the TVL we've already moved.

“We don't pitch a roadmap to DeFi, we point to the TVL we've already moved.”

DeFi in production: TVL moved, protocols shipped
$120M → $730Mgovernance TVL

The ve8020 Launchpad standardized vote-escrow infrastructure across 41 DeFi protocols on Balancer, growing governance-aligned TVL from $120M to $730M and cutting integration time by 82%.

BalancerView project →
98% fee reductionregulated DEX

Protofire built Swarm Markets DEX, the world's first BaFin-regulated exchange for crypto and tokenized stocks, onboarding 7,000+ verified users and expanding to 50+ trading pairs.

Swarm MarketsView project →
$50M TVL in 90 daysgovernance staking

Trustless proxy contracts automated reward distribution for KyberDAO stakers, slashed operational costs by 50%, and drove a 35% surge in voter delegations, bringing StakeDAO's $50M+ TVL live within 90 days.

KyberDAOView project →

FAQ

What is DeFi development?
DeFi development is the design and engineering of decentralized-finance primitives (DEXes, stablecoins, lending markets, vaults, perpetuals, staking, and loyalty systems) that run on smart contracts and let users trade, borrow, save, and earn on-chain without intermediaries. At Protofire it's engineering-led rather than template-driven: each primitive is forked from a proven, audited base (Uniswap V3 for DEXes, Liquity/Gravita/Prisma for CDP stablecoins, Aave/Compound for lending, ERC-4626 for vaults), then customized to your chain's assets, economics, and risk model, hardened against the oracle and economic attack surface, and deployed by a team that has shipped 250+ projects since 2016 across 60+ networks. The contract fork is the easy part; the real work is chain integration, risk parameters, security hardening, and liquidity bootstrapping, so the primitive launches usable on day one rather than as a dead pool.
What is a yield-bearing stablecoin?
A yield-bearing stablecoin is a token pegged to a stable value, usually the dollar, that also pays its holders a return generated by the assets backing it, for example lending interest from Aave or Compound, staking rewards from Lido or Rocket Pool, or yield from tokenized T-bills. We build them as one integrated six-layer stack rather than a bare contract: an ERC-4626 vault at the core, yield-strategy connectors into those protocols, a liquidation bot, an admin UI, a subgraph for data, and Safe governance over the parameters. It's a common building block for RWA and on-chain treasury products that want a productive dollar instead of an idle one, and because the vault standard and the underlying yield sources are already battle-tested, the build leans on audited bases and concentrates effort on the strategy connectors, risk controls, and governance rather than reinventing the token itself.
Do you build DeFi protocols from scratch or fork an existing one?
We almost always start from a proven, audited base rather than writing a novel protocol from scratch (Uniswap V3 for DEXes, Liquity, Gravita, or Prisma for CDP stablecoins, Aave or Compound for lending, and ERC-4626 for vaults), then customize the economics, oracles, collateral and risk parameters, and a branded frontend to your chain. Forking the contract is the easy part; the real work is everything after it: chain integration, risk parameter tuning, security hardening, and liquidity bootstrapping so the venue isn't a dead pool on launch day. Starting from a base that is already audited and proven in production means fewer net-new lines to review, faster delivery, and a smaller external-audit surface. A greenfield protocol is possible when the design genuinely demands it, but it is rarely the fastest or safest route to mainnet, so we recommend it only when the economics require it.
How do you bootstrap liquidity for a new DEX?
A new venue with empty pools is a dead venue, so liquidity bootstrapping is part of the build, not an afterthought. We seed initial pools, configure fee tiers and incentive programs, and, where governance is involved, deploy vote-escrow mechanics that direct token emissions toward the pairs that actually need depth, so liquidity lands where trading happens rather than spreading thin. It's the same playbook behind our work on Balancer, where the ve8020 Launchpad grew governance-aligned TVL from $120M to $730M across 41 protocols by standardizing vote-escrow infrastructure, and behind Swarm Markets, where we helped the world's first BaFin-regulated DEX scale to 50+ trading pairs and 7,000+ verified users while cutting fees 98%. We pair that with monitoring and optional ongoing operations after launch, so the depth you bootstrap on day one is maintained as volume and the number of pairs grow.
Is the code audited?
Yes. Every build is pre-audited in-house before it ever reaches an external auditor: we threat-model the economic and oracle attack surface (the parts of a DeFi protocol that actually get exploited) and harden the code with Solhint, our own open-source Solidity linter used by 1M+ developers. Because we start from an already-audited base (Uniswap V3, Liquity/Gravita/Prisma, Aave/Compound, ERC-4626) and then add pre-audit hardening, there are fewer net-new lines to review, which typically reduces both the number of external-audit findings and the audit cost. We also plan the external audit into the schedule before launch rather than treating it as an afterthought, and we remediate the findings ourselves. As an official Safe Guardian, a core contributor to Chainlink, and a top-3 indexer in The Graph ecosystem, the standard we hold your contracts to is the one we apply to infrastructure the wider industry relies on.
Which chains do you build on?
EVM L1s, L2s, and app-chains are our primary focus, with selected non-EVM ecosystems where a project needs them. We run production infrastructure across 60+ networks and have deployed Safe across 120+ EVM chains, securing $2B+ in TVL, so the multi-chain operational experience behind a DeFi build is real rather than theoretical. The chain choice usually follows the product: a native DEX, CDP stablecoin, or lending market is tuned to the assets, liquidity, and risk profile of the specific chain it lives on, and oracle and bridge availability factor into the decision. Because our primitives are forked from audited bases that are already widely deployed across EVM networks, moving a design to your target chain is a matter of integration and parameter tuning rather than a rewrite, which keeps delivery fast and the audit surface small.
How much does DeFi development cost, and how long does it take?
It depends on the primitive: a focused DEX or stablecoin deployment is scoped very differently from a full six-layer yield-bearing-stablecoin stack with its vault, strategy connectors, liquidation bot, admin UI, subgraph, and governance. As a reference point on timeline, a yield-bearing stablecoin stack runs roughly 8-13 weeks. Because we start from audited, production-proven bases rather than writing a protocol from scratch, the engineering effort concentrates on customization, hardening, and liquidity bootstrapping instead of reinventing core contracts, which keeps delivery predictable. Rather than quote anything blind, we give you a fixed scope, timeline, and estimate on the first call, before any work starts, and run the build in defined stages (start from an audited base, customize to your chain and economics, harden and audit, then deploy and bootstrap), so scope and budget stay visible from kickoff through mainnet launch.

Reviewed by Luis Medeiros, Field CTO at Protofire. Last reviewed: June 2026.

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