David Marcus

David Marcus

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CEO & co-founder @Lightspark ➡️ building the open Money Grid on Bitcoin + @spark. Ran Payments/Crypto & @Messenger at @Meta, led @PayPal + 3 startups.

Security Update Causes AI to Hallucinate, Mislead User
SocialApr 7, 2026

Security Update Causes AI to Hallucinate, Mislead User

Hilarious claw moment. Upgraded to OpenClaw 2026.4.5, security update rescinded exec rights. Instead of telling me that, my claw starting making shit up and pretending it was doing things it couldn't do. Fooled me for a solid hour.

By David Marcus
Skipping Full OpenClaw Use Is 90s Offline Mindset
SocialApr 4, 2026

Skipping Full OpenClaw Use Is 90s Offline Mindset

Not experimenting with @openclaw to the max extent for “security reasons” is like not connecting to the internet in the 90s.

By David Marcus
Unsupervised Coding
SocialApr 2, 2026

Unsupervised Coding

We’re likely < 12 months from unsupervised software development. Not just better models. Full closed loops: generate → run → evaluate → fix → repeat. Using @openclaw you can already see it. Once loops + models improve together, supervision will stop making sense.

By David Marcus
Agents Need Identity, Funding, Not New Protocols
SocialMar 28, 2026

Agents Need Identity, Funding, Not New Protocols

The agent protocol debate is a distraction. Agents don’t need a new language. They need identity, money, and bridges to the infra the world already runs on. The priority now is building products humans actually use, augmented by agents.

By David Marcus
Claude Code Flags Critical Issues in Every Codex Review
SocialMar 28, 2026

Claude Code Flags Critical Issues in Every Codex Review

It's wild that every time you run a Codex code review from Claude Code, it finds critical issues. Not 95% of the times, 100%.

By David Marcus
Spark in WDK Enables Fast, Cheap Bitcoin Payments
SocialMar 18, 2026

Spark in WDK Enables Fast, Cheap Bitcoin Payments

.@spark in WDK is a big milestone for Bitcoin. Thrilled about our partnership with @tether to enable hundreds of millions of wallets with fast, cheap Bitcoin payments. 🤝 @paoloardoino & team

By David Marcus
Lightspark Stands Alone as Independent Global Money Platform
SocialMar 17, 2026

Lightspark Stands Alone as Independent Global Money Platform

Congratulations to our colleagues at @BVNKFinance for their acquisition by @Mastercard. After @Stablecoin got acquired by @stripe last year, @lightspark is now officially the only independent global stablecoin + Bitcoin +fiat global money movement platform on a neutral network.

By David Marcus
Hiring LA Narrative Lead to Shape Global Money Story
SocialMar 17, 2026

Hiring LA Narrative Lead to Shape Global Money Story

Later today we will be posting a new LA-based role to lead @Lightspark narrative distribution on socials. I’ll be working closely with that leader to tell our story about changing the way money moves globally. If you think you’re the...

By David Marcus
Seeking Custom LLM‑Powered Voice Assistant with App Integration
SocialMar 15, 2026

Seeking Custom LLM‑Powered Voice Assistant with App Integration

Is anyone making an Alexa-like speaker/mic product that connects to your LLM of choice + relevant critical apps?

By David Marcus
Instant Bitcoin Cross‑chain Swaps Powered by GardenFi
SocialMar 4, 2026

Instant Bitcoin Cross‑chain Swaps Powered by GardenFi

Brick by brick 🧱. Welcome instant any chain/asset ↔ Bitcoin, powered by @gardenfi on @spark.

By David Marcus
Cake Wallet Joins Spark, Boosting Bitcoin Lightning Adoption
SocialMar 2, 2026

Cake Wallet Joins Spark, Boosting Bitcoin Lightning Adoption

Thrilled to welcome @cakewallet to Spark. All the leading Bitcoin wallets are on @spark or in the process of implementing it. So great to get to this level of product market fit with awesome partners like @Breez_Tech accelerating adoption.

By David Marcus
Hackathon PWA Game Integrates Crypto Wallet and Bitcoin Prizes
SocialMar 2, 2026

Hackathon PWA Game Integrates Crypto Wallet and Bitcoin Prizes

Last week we had an agent-coding hackathon at @lightspark. I built a PWA game featuring a @spark wallet with @X and email login (@privy), ability to win Bitcoin prizes (skills), fund your BTC wallet with @USDC via @flashnet or...

By David Marcus
Lightspark Aims to Lead Stablecoin Payments Within Two Years
SocialFeb 26, 2026

Lightspark Aims to Lead Stablecoin Payments Within Two Years

People don’t think about @Lightspark as a stablecoin company. I’m now confident we will be the largest stablecoin payments company in the next 24 months. All on a neutral, open network that belongs to our clients as much as it...

By David Marcus
Instant USD‑to‑BRL Transfers Powered by Claude AI
SocialFeb 20, 2026

Instant USD‑to‑BRL Transfers Powered by Claude AI

Demo Friday: realtime @claudeai assisted 🇺🇸 USD → 🇧🇷 BRL in seconds using @Lightspark Grid. Magic money movement available to everyone and in 60+ countries. We recorded this in one shot. So easy. https://t.co/6tOqsVxo9R

By David Marcus