Blockchain Development Services
For chains, DeFi protocols, and the finance and RWA platforms moving on-chain. From the first smart contract to the production infrastructure you run.
250+
Projects delivered since 2016
$2B+
In assets secured across 120+ networks
1M+
Developers rely on our open-source dev tools
Trusted across 60+ networks and 95+ protocols
Protofire is an engineering-led blockchain development company, building across Web3, DeFi, and real-world assets since 2016. Whether you're launching a new chain, hardening a protocol before mainnet, or scaling one that already holds capital, the categories below map to what you need to ship, and each links to a dedicated page with the engineering detail, real case studies, and a way to start.
Built for your industry
L1 / L2 Chains
→Node · oracle · indexing · explorer
DeFi Protocols
→Contracts · audits · oracles · TVL
Prediction Markets
→Settlement · oracles · AI agents
RWA Issuers
→Permissioned tokens · compliance
Asset Managers
→Tokenized funds · custody · NAV
Treasuries
→Safe custody · yield · reporting
Specialty Finance
→Private credit · factoring
Payment Providers
→Cross-border · stablecoin rails · ops
Fintechs & Neobanks
→Earn · lending · vaults · stablecoins
Browse by capability
Every capability we build, at a glance. Jump to any one, or scroll the full stack below.
Smart Contracts & Security5DeFi9Tokenization & RWA9Staking5Apps, Wallets & Tokens5Oracles, Data & Interoperability5Node Infrastructure6Safe, Accounts & Tooling5Privacy2AI2Teams & Advisory2
01
Build & Ship
Everything a product is built from: production contracts and audits, DeFi primitives, tokenization and staking, and the wallets, apps, and tokens users touch.
Smart Contracts & Security
5Production smart contracts and the security around them: Solidity and Rust development, independent audits and pre-audit hardening, QA automation, and live-incident response. We hold code to a standard we wrote, Solhint, the linter used by 1M+ developers.
Smart Contract Development
Production Solidity, Plutus, and Rust for DeFi, RWA, and infra, built from audited reference architectures. Multi-chain, with the frontend, subgraph, and tooling around each contract.
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1M+
devs use Solhint, which we maintain
Smart Contract Audit
Independent security review plus pre-audit hardening that shrinks the cost of the formal audit. Economic and oracle threat-modeling, not just code review.
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QA & Testing
Full-cycle Web3 QA: unit, integration, fork, and property-based fuzz testing on Hardhat, Foundry, and Echidna, plus monitoring and wallet-compatibility coverage.
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Protocol Rescue
Emergency DeFi incident response: 24/7 triage, containment, multisig execution, recovery coordination, and post-mortem hardening when a protocol is under attack.
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Managed On-Chain Operations
The standing 24/7 watch for live on-chain products: monitoring, incident response, and key and upgrade operations, on top of your detection tools. The MSSP model, web3-native.
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DeFi
9DeFi primitives built from audited bases and tuned to your chain's assets and economics: DEXs, perpetuals, lending and CDP markets, vaults, stablecoins, and prediction markets. Each ships with the oracle, liquidation, and frontend plumbing it needs.
DeFi Development
The full DeFi stack: DEX, lending, perps, vaults, staking, and yield systems, forked from audited architectures and hardened for your chain.
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$730M
Balancer governance TVL, up from $120M
DEX Development
AMM, concentrated-liquidity, and order-book exchanges, plus the liquidity bootstrapping that keeps a new venue from launching as a dead pool.
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Perpetual DEX
Perpetual-futures DEX on the D8X open-source perp engine: oracle pricing, funding rates, liquidation, and margin for derivatives venues on EVM chains.
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Native Stablecoin
Launch a chain's own stablecoin, CDP, asset-backed, or algorithmic, with minting and redemption, peg defense, liquidation, and Proof-of-Reserve.
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Yield-Bearing Stablecoin
ERC-4626 savings dollars: a vault stack that routes reserves into RWA and T-bill or DeFi yield, with Chainlink Proof-of-Reserve.
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Stablecoin Cross-Border Payments
Cross-border settlement on stablecoin rails, built into your product: issuer and on/off-ramp orchestration, treasury and reconciliation, and CCIP cross-chain settlement, under your own brand.
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Crypto Payments & Gateway
Stablecoin settlement rails, on/off-ramp orchestration, and non-custodial card payments via our Wirex partnership, with treasury, compliance, and custody built in.
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Prediction Market Infra
Prediction-market and AI-agent infrastructure: conditional-token settlement, oracle resolution, and Safe agent-wallets, built on Gnosis Conditional Tokens and proven open-source stacks.
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Prediction Market Leverage
Position-collateralized lending and embedded one-click leverage on open prediction-market positions, built on Morpho, Gnosis, and Safe, so traders borrow without closing the bet.
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Tokenization & RWA
9Infrastructure to bring real-world assets on-chain compliantly: permissioned tokens (ERC-3643), async vaults (ERC-7540), and compliance in code, plus our productized lending, insurance, vault, and OTC layers for tokenized RWA.
Tokenization Infrastructure
Permissioned token issuance (ERC-3643), async vaults (ERC-7540), KYC and transfer rules, NAV oracles, and Proof-of-Reserve, with compliance enforced in code.
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ERC-3643
the compliant token standard we build RWA on
ERC-3643 Development
The ERC-3643 (T-REX) permissioned-token standard done right: on-chain identity (ONCHAINID), claim verification, and compliance modules that enforce KYC and transfer rules in code.
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Compliance Integration
KYC, AML, transaction screening (KYT), sanctions, and Travel Rule wired into your product and enforced on-chain, integrating the screening providers you choose. We built the on-chain KYC for a BaFin-regulated venue.
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White-Label Lendingproduct
A branded private-credit and lending platform on a forked, hardened Aave V3 base with a credit-arena engine. Live as the LandX Credit Gateway. (Arenas)
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RWA Insuranceproduct
Parametric, oracle-triggered downside protection for tokenized RWAs: redemption-freeze, NAV-deviation, and custody-failure coverage. (RWArmor)
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Tokenized Vault Infraproduct
A client-owned ERC-4626/7540 vault core with a separated policy and control plane, plus async subscription and redemption for tokenized funds. (VaultOS)
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RWA Decentralized OTCproduct
A permissioned peer-to-peer secondary market for tokenized RWAs, with reference-priced OTC trades. Live via Swarm Markets. (dOTC)
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Proof of Reserve
On-chain reserve attestation for stablecoin, EMT, tokenized-fund, and RWA issuers: custodian adapters, Chainlink Proof of Reserve, aggregation contracts, and compliance reporting.
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Enterprise Blockchain Development
Regulated, institutional blockchain: permissioned ERC-3643 tokens, compliance enforced on-chain, and institutional custody, on public or permissioned networks. Built the first BaFin-licensed DEX.
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Staking
5Staking systems for PoS chains and protocols: liquid staking, chain-native security staking, vote-escrow governance, and a diversified staking-index product. Each layer targets a different capital and network-security need.
Liquid Staking
LST and LRT infrastructure: receipt tokens, validator integration, yield accounting, and the UX that turns staked capital into liquid, composable assets.
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7,000+
stakers on the KyberDAO delegation portal we built
ve8020 Staking
Vote-escrow (ve8020) governance staking: factory, voting-escrow, and reward-distributor contracts that align long-term holders and grow sticky TVL.
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Native Staking Module
A chain's own native staking layer: operator registry, delegated staking, reward engine, and slashing logic for network security.
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Liquid Staking Indexpre-launch
A diversified, multi-chain LST index product: basket exposure to staking yield across PoS networks with NAV accounting and rebalancing.
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EigenLayer AVS Development
Build an Actively Validated Service: the ServiceManager and middleware, operator infrastructure, and slashing logic, from a team that runs validators and oracles.
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Apps, Wallets & Tokens
5The product layer users actually touch: crypto wallets, dApp frontends, and token launches, built on the same contracts, indexing, and infrastructure we run underneath. Full-stack, so the app and the chain stay in sync.
Crypto Wallet Development
Non-custodial, smart-account, embedded, and custody-backed wallets, with the backend and mobile UX behind them. We helped build Safe and shipped the Telos zkWallet.
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130+
Safes deployed, official Safe partner
dApp Frontend & Web3 UX
React and Next.js dApps: wallet connection and transaction UX, real-time on-chain data, and design systems, built on the contracts and subgraphs underneath.
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Token Launch & Engineering
ERC-20 and extensions, tokenomics, vesting and airdrops, launchpad and liquidity, and governance, engineered to hold value and pass an audit. Not a template.
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Launchpad Development
Fair-launch, presale, IDO, and Liquidity Bootstrapping Pool mechanics: sale contracts, liquidity provisioning, anti-bot launch, and white-label launchpad platforms.
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Airdrop Development
Token distribution at scale: Merkle-claim contracts, sybil-resistant eligibility, vesting airdrops, and gas-efficient distribution to thousands of addresses.
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02
Infrastructure & Accounts
The oracle, cross-chain, indexing, node, and account layers that everything else runs on, including official Safe deployment.
Oracles, Data & Interoperability
5The data and cross-chain layer serious protocols run on. As a core contributor to Chainlink and a top-3 indexer in The Graph, we wire in reliable pricing, cross-chain messaging, and the indexed data your app and users depend on.
Blockchain Oracle Development
Chainlink, Pyth, and custom oracle development: price feeds, Proof-of-Reserve, VRF, and automation, on EVM and non-EVM networks.
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CCIP Integration
Chainlink CCIP cross-chain interoperability: programmable token transfers and messaging with the Risk Management Network and rate limits.
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Cross-Chain Integration
Vendor-neutral cross-chain messaging: CCIP, LayerZero, Wormhole, Axelar, and Hyperlane, integrated and operated per route, with the verification and failure handling that keep multichain systems safe.
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Subgraph Development
The Graph subgraphs and custom indexing: a data layer that keeps up as TVL and transaction volume grow. We are a top-3 indexer.
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Blockchain Data Indexing
Full-spectrum indexing beyond subgraphs: The Graph, Substreams, Ponder, Subsquid, and custom Rust indexers, built and operated so your app queries on-chain data in milliseconds.
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Node Infrastructure
6Production node and network infrastructure operated under uptime SLAs. Two entry points: end-to-end infrastructure under one roof, or a managed RPC endpoint. Plus validators, explorers, and DePIN networks.
Node Infrastructure
End-to-end blockchain infrastructure under one roof: full and archive nodes, validators, block explorers, and monitoring, operated under SLA for chains and protocols.
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99.95%
uptime, Filecoin
RPC Node Hosting
Just the endpoint: managed, load-balanced, high-availability RPC with uptime SLAs, for teams that need reliable access without running their own nodes.
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Validators
Validator operations across PoS networks: secure key management, slashing protection, and monitored uptime as a managed service.
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Blockscout Development
Custom Blockscout block explorers for EVM chains and rollups: deployment, customization, indexing, contract verification, and hosting.
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Rollup & Appchain Development
Launch an L2 or appchain: customize the stack (OP Stack, Orbit, CDK, zkSync), wire the DA layer and bridges, and build the explorer, oracle, indexing, and Safe layer that makes it usable.
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DePIN
Infrastructure for decentralized physical infrastructure networks: device registry, contribution verification, reward and staking contracts, and node ops.
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Safe, Accounts & Tooling
5The account and custody layer that teams build on. We are an official Safe partner with 130+ Safes deployed and years inside the Safe codebase, plus ERC-4337 account abstraction and the SDKs, CLIs, and libraries (including Solhint) developers rely on.
Safe Multisig Deployment
Deploy and customize Safe smart-account infrastructure on new chains: modules, guards, and the Safe{Core} SDK. Official Safe partner, inside the Safe codebase since 2017.
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130+
Safes deployed, official Safe partner
Account Abstraction
ERC-4337 smart accounts: gasless transactions and paymasters, session keys, social recovery, embedded-wallet onboarding, and mobile wallet UX.
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DAO Tooling & Governance
On-chain governance built on Safe and Zodiac: custom governance modules, scoped permissions, cross-chain execution, delegation, and treasury controls.
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Fireblocks & Custody Integration
Integrate Fireblocks or an MPC custodian into your product: the transaction and treasury flows, policy and authority matrix, and 24/7 operations, without us ever holding your funds.
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Developer Tooling & SDKs
SDKs, CLIs, and developer tooling for blockchain ecosystems. We maintain Solhint (1M+ devs) and built Chainlink's Hardhat and Foundry tooling.
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03
Privacy, AI & Teams
On-chain privacy, AI applied to delivery and operations, and the team to build what we recommend.
Privacy
2On-chain privacy for networks and wallets: shielded-pool ZK infrastructure for chains, and a white-label private-transaction mode for wallets and dApps, both compliance-aware.
ZK Privacy
A compliance-ready shielded-pool and private-transaction layer for EVM networks: ZK proofs, gas abstraction, and viewing keys. Live on Telos.
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Wallet Privacy
A white-label Private Mode for wallets and dApps via the Kohaku Standard SDK, routing across Hinkal, Railgun, Privacy Pools, and 0xCurvy.
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AI
2AI applied to Web3 delivery and operations: AI-augmented engineering squads that ship with senior review, and AI agents that run the repeatable parts of your operations.
AI-Augmented Web3 DevAI Squads
Embedded squads where AI agents draft and a named senior engineer reviews and signs off every commit. AI speed with audit-grade accountability.
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AI AutomationAI Coworkers
We audit your workflows and deploy AI coworkers, with roles, routines, and escalation rules, to run repeatable BD, research, reporting, and ops.
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Teams & Advisory
2The people layer: engineering-led architecture and strategy consulting, plus embedded dedicated teams to hire senior blockchain developers on demand.
Blockchain Consulting
Architecture, chain selection, tokenomics, security, and infrastructure strategy, with the team to build what we recommend.
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Dedicated Teams
Hire senior blockchain developers: embedded dedicated teams or staff augmentation, outcome-aligned, ramped in weeks not months.
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FAQ
What is a blockchain development company?
A blockchain development company designs, builds, audits, and operates the on-chain software a Web3 or finance project runs on: smart contracts, DeFi protocols, tokenization and real-world-asset infrastructure, oracles and cross-chain messaging, node and RPC infrastructure, staking, privacy layers, and the developer tooling around them. Protofire is engineering-led and has shipped 250+ such projects across 60+ networks since 2016.
What blockchain development services does Protofire offer?
Smart contract development and independent audits, DeFi primitives (DEX, perpetuals, lending, stablecoins, vaults), tokenization and RWA infrastructure, oracle and Chainlink CCIP integration, subgraph indexing, node and RPC infrastructure, Safe multisig deployment, crypto wallet, dApp, and token development, staking systems, ZK and wallet privacy, AI-augmented engineering, and dedicated teams. We serve L1/L2 chains, DeFi protocols, and finance and RWA platforms.
What blockchain networks does Protofire support?
We have shipped across 60+ networks and 95+ protocols, including Ethereum, Optimism, Polkadot, Solana, Filecoin, Cronos, Moonbeam, Linea, Starknet, Mantle, Telos, and Fuse, and we deploy on any EVM-compatible chain plus selected non-EVM networks.
What makes Protofire a credible blockchain development partner?
We maintain Solhint, the Solidity linter used by 1M+ developers; we are an official Safe partner with 130+ Safes deployed; we are a core contributor to Chainlink; and we are a top-3 indexer in The Graph. We grew Balancer governance TVL from $120M to $730M, with 250+ projects delivered since 2016.