Systems. Signal. Shape.
Web3 infrastructure · real-time systems · the fun parts of the web. Not actively looking, but always happy to chat.
01 / About
A Quiet
Engineer.
Senior engineer at Quicknode building blockchain RPC and developer tooling used across the crypto ecosystem. I like things that are fast, small, and a little weird — x402 payment rails, agent arenas, raw-transaction sleuthing, healthcare dashboards that have to clear HIPAA. AI is changing development daily; the work now is finding the safe new tools that level up the LLMs. A lot was possible before; anything is possible now. If you're not using this day-to-day, you're falling behind.
02 / Work
Selected
Projects.
- 01
x402-rails
Public package · payment rails for the agentic era · 2026
Open-source backbone infrastructure for x402 — programmatic HTTP 402 settlements between AI agents and the services they call. Per-request stablecoin payments without an account, an invoice, or a tab. Free for anyone to drop in.TypeScript · Viem · Solidity · Node.js
- 02
x402-payments
Public package · drop-in x402 for any API · 2026
Open-source SDK that lets a Node or Next.js endpoint quote a price, settle it on-chain, and serve the response — turning any function into an instantly-monetizable agent service. Install, wrap your handler, ship.TypeScript · Next.js · Viem · EVM
- 03
x402playground.com
A live x402 sandbox · 2026
Open the page, connect a wallet, watch real x402 calls execute against demo endpoints. The fastest way to see paid HTTP feel like a normal fetch().Next.js · Viem · Wagmi · Tailwind
- 04
agentarena.xyz
Where agents fight for benchmarks · 2026
A leaderboard + match runner for autonomous agents — pit different models on the same task, score speed/cost/correctness, share replays. Every invocation is metered through x402.Next.js · TypeScript · Postgres · x402
- 05
x402pokemon
Pokémon trades over x402 · 2026
A demo that lets two agents trade Pokémon between each other with x402 settlements between every move. Pure showcase — also genuinely fun.TypeScript · Viem · OpenAI · x402
- 06
Wacdonalds
AI burger ops · 2026
A weekend project where an LLM runs the kitchen — orders flow in, agents fill them, x402 invoices print for every nugget. Half satire, half genuine experiment in agentic dispatch.Next.js · TypeScript · OpenAI · x402
- 07
Packz
Bundles for autonomous agents · 2026
Curated packs of x402-paid services an agent can subscribe to with one signature — research, code execution, rendering, image gen. Buy a pack, give it to an agent, watch it work.TypeScript · Viem · Next.js
- 08
Story-block
On-chain interactive fiction · 2026
Branching narratives where readers vote on the next chapter with on-chain signals; outcomes get attested as blocks. Blockchain as story-state machine, not as ticker.Next.js · Solidity · Viem · MDX
- 09
Modtech
Modular tech consulting · 2026
Sticking-point code review + architecture work for early-stage teams. Drop in for a sprint, leave behind something that's still maintainable a year later.TypeScript · Next.js · Postgres · AWS
- 010
Enterprise CMS dashboards
HIPAA-compliant control surfaces · 2026
Multi-tenant content + analytics dashboards built to clear HIPAA, SOC 2, and the audit trail every healthcare buyer asks for. Row-level security in Postgres, signed-URL document delivery, full event log.Next.js · Postgres (RLS) · TypeScript · AWS
- 011
poc-distribution
Referral fee distribution PoCs · 2026
Three parallel proofs-of-concept for scalable on-chain referral payouts: 1inch CumulativeMerkleDrop, Thirdweb Airdrop, and Splits Protocol. Live-tested on Polygon mainnet with gas benchmarks.TypeScript · Solidity · Viem · Hardhat · Polygon
- 012
rawTxnAddressFinder
Raw transaction archaeology · 2025
JavaScript CLI that decodes raw Ethereum transactions and surfaces the signer address + nonce without needing an RPC. Great for forensics and cold-wallet recovery flows.JavaScript · ethers.js · Node.js
- 013
zlerplabs.com
A personal sandbox · 2025
Long-running experiments blog — part playground, part portfolio, part accidental README. Runs on Next.js with a custom MDX pipeline and view-transitions-powered post navigation.Next.js · MDX · Tailwind · Vercel
03 / Career
Experience.
- 2022—NowQuicknodeSenior Engineer
- Built internal tooling for blockchain RPC observability, adopted across multiple product teams.
- Shipped referral-fee distribution infrastructure handling on-chain payouts to thousands of developers.
- Driving x402 payment rails + agentic infrastructure work — turning HTTP 402 from a curiosity into shipping rails for paid agent calls.
- Contributor on the core platform powering RPC + streams for web3 developers.
- 2020—NowZlerp LabsBuilder-in-Residence (self)
- Personal R&D — smart-contract experiments, small web apps, occasional blog posts at zlerplabs.com.
- Published open-source utilities like rawTxnAddressFinder and distribution PoCs.
- 2015—2022Prior startupsFull-stack / Product Engineer
- Shipped consumer and B2B products across a handful of early-stage teams.
- Owned frontend, backend, and a lot of 'whatever nobody else wants to touch'.
04 / Contact
Let's
Work.
Not actively looking, but always happy to chat.
or email direct: z.h.perlman@gmail.com- Location
- Miami, FL
- GitHub
- github.com/Zlerp
- www.linkedin.com/in/zachperlman/
Set on a 12-column grid · Archivo & Archivo Black · 2026