Masterkey.vc

We support the ₿uildlΞrs of the crypto expansion. From pre seed to growth stages - Infrastructure, Deep tech cryptography, DeFi, energy&mining

[Web3 Devs Underground @Web3_Devs]

Want a straight read on your product, go-to-market, or fundraising plan? Shauli Rejwan (@shap0w), Managing Partner at @masterkeyvc and co-founder of Web3 Devs Underground, holds six 20-minute 1:1 sessions. Sun 25 Oct, 14:00-16:00, @sncentral_ Tel Aviv. Free. Apply by Sun 18 Oct.

[Web3 Devs Underground @Web3_Devs]

You're all invited to Office Hours on Sun 25 Oct in Tel Aviv: 20-min 1:1s with Eli Ben Sasson, Dror Avieli, Arkady Karpman, Ehud Naos and Shauli Rejwan. Bring a real question; the hosts pick who they meet. Free, apply by 18 Oct.
https://t.co/6OR5eB1ixW

[Masterkey.vc @MasterkeyVC]

More bullish than ever on our space
It keeps maturing in so many directions

[Web3 Devs Underground @Web3_Devs]

Just in: @jumperapp's JUMP sale on @legiondotcc drew $48.6M in applications at a $3M hard cap. 16x oversubscribed.

Next week, Jumper CEO @zord4n joins @notdevid and @SHAP0W to break down how.

Are ICOs back?

📅 Wed Oct 14 · 🕐 18:00 IDT · 📍 ONLINE

https://t.co/zRGsWUKnSd

[Web3 Devs Underground @Web3_Devs]

Yehuda Lindell joins the special panel that closes Mid-Chain.
Mon 26 Oct · 17:00 · Senate Hall, Ben-Gurion University
After a full day of talks on proof of useful work, EIP-1559, restaking, post-quantum migration and governance.

Free, by approval 👉 https://t.co/2ExXHnQ8Ts

[Web3 Devs Underground @Web3_Devs]

Multisig in Practice | Web3 Devs Underground Monthly Meetup https://t.co/kvGKc7gY62

[The Tie @TheTieIO]

Bitcoin is no longer a fringe asset. As it becomes embedded across institutions, governments, public companies, and ETFs, has it become systemically important?

Lee Counselman (@Barclays) with @SHAP0W (@MasterkeyVC), Evgeny Gokhberg (@Re7Capital), @Dgt10011 (@Paraficapital), and @stutireal (@PanteraCapital).

Watch the full Out East Summit 2026 panel: https://t.co/vq6asGK9BI

Presenting media sponsor @FTDA_US.

This content is for informational purposes only and is not investment advice. Any views expressed are the speaker’s own and do not necessarily reflect the views of their firm.

[Web3 Devs Underground @Web3_Devs]

NEXT MEETUP IN TEL AVIV

1. @_benkaufman workshops multisig with @SparrowWallet.
2. @boazeb on building @summocash, his 2-of-3 multisig app.

🗓️ Wednesday - 23/9/2026
📍@sncentral_ (28 Lilienblum St.)

Learn to keep your crypto safe: https://t.co/EGr8xE15Bf

[Web3 Devs Underground @Web3_Devs]

Open-Kritt: AI Agents That Find Real Vulnerabilities https://t.co/gGu1kr2163

[Web3 Devs Underground @Web3_Devs]

@ControlZ_1337 open-sourced his AI agent that found a $250,000 bug, and it has already passed 1,000 GitHub stars and secured hundreds of thousands of dollars.

Next week on the Underground, he'll show you how it works:

Register here: https://t.co/gx1YTYnjik

📅 Wednesday, August 19
🕐 10:00 EDT · 16:00 CET · 17:00 IDT
📍 Live on YouTube

[Masterkey.vc @MasterkeyVC]

Amazing work @3miLabs and @TomerAshur
Kudos

[Cryp·tomer | 3MI Labs @TomerAshur]

Kudos to the entire @3miLabs team for all the hard work

[Web3 Devs Underground @Web3_Devs]

Is Your Bitcoin Safe? ColdCard's RNG Failure and How Not to Lose It All https://t.co/mRO89Ns12F

[Web3 Devs Underground @Web3_Devs]

🇮🇱 $ILS trading is overwhelmingly global

→ 88% of spot & forward activity involved a non-resident.

We are now LIVE at @sncentral_ 👇

[Web3 Devs Underground @Web3_Devs]

Raised in USD, but spending ILS?

Israeli startups have lost ~30% of their runways in two years.

A Practical Guide to Protecting Your Runway from Currency Volatility (FX & Crypto)

→ Join us LIVE: 29 July at @sncentral_ in Tel Aviv 🇮🇱
→ Speakers: Tal Raz (@AltshulerShaham) + @OfirEliasi

Register here: https://t.co/02lQ7461ql

[Web3 Devs Underground @Web3_Devs]

AMM design is being rethought from the ground up, and 1inch Aqua is the clearest signal of where on-chain trading infrastructure is heading.

Join us for a technical deep-dive into 1inch's next-generation liquidity protocol: how shared liquidity works, and what it unlocks for LPs, DeFi users, and builders.

🎤 Tanner Moore (@tanz0rz), Technical Account Manager at @1inch

What we're covering:
• Where modern AMM design falls short: fragmented liquidity, idle capital, LP tradeoffs
• What Aqua is, and which of those assumptions it challenges
• Shared liquidity in practice: capital efficiency and what it means for LPs
• What the design unlocks for swappers
• Building on top of or integrating with Aqua

If you're building DeFi applications, providing liquidity, or want to understand where on-chain trading infrastructure is heading, this session is for you.

📅 Wednesday, July 15th
🕐Time: 10:00 EDT | 16:00 CET | 17:00 Israel
📍Where: Streaming live on X, YouTube & LinkedIn

Register NOW: https://t.co/OH4ijo90wN

Powered by @MasterkeyVC

[LI.FI @lifiprotocol]

Ondo tokenized stocks are now live on LI.​FI.

Tokenized SpaceX, NVIDIA, Tesla and hundreds more, are now available to LI.​FI's distribution network of 1000+ enterprise partners.

Accelerating access to tokenized real world assets.

Powered by @OndoFinance x LI.​FI.

[Web3 Devs Underground @Web3_Devs]

AI agents are signing transactions, holding keys, and moving real funds, usually with no guardrails at all.

That's a brand-new attack surface, and your current security model wasn't built for it.

Join us THIS WEDNESDAY for a deep technical session on securing autonomous agents, with Kevin Jones (@cryptomastery_), founder of @1clawAI and DevRel at @edgeandnode / @graphprotocol.

What we're covering:

• Why AI agents are a new class of attack surface
• Giving an agent a leash (policy enforcement), a wallet (HSM-backed key custody), and a safety belt (pre-execution guardrails)
• How @1clawAI secures the agent economy at scale
• Practical patterns for builders shipping agents that touch real funds

🗓 Wednesday, June 17
🕔 17:00 IDT | 16:00 CET | 10:00 EDT
📡 Live on X, YouTube & LinkedIn

If you're building or deploying onchain AI agents, this one goes straight to the core.

Register: https://t.co/I0RMCbUlAJ

[Web3 Devs Underground @Web3_Devs]

@or_sattath (BGU) opened with the optimistic side: public quantum money and one-shot signatures (Amos et al., Best Paper at Crypto), enabling "prudent contracts" and a Bitcoin upgrade path that eventually retires mining.

@DesheShai followed with the migration plan. Front-running during the broadcast-to-confirmation window is the real near-term surface. In flight: BIP-360 (soft-fork ramp for new signatures), cryptographic canaries as on-chain tripwires, Lifted FawkesCoin (LFC) for recovering legacy and lost addresses, and BIP-361 (Jameson Lopp et al.) as the roadmap.

Thanks to @CatoNetworks for hosting us into their breathtaking offices, @MasterkeyVC, and Mamram Alumni Association. Media partners: QUBIT-IL, @B7Blockchain, and @bengurionu.

📺 Recording: https://t.co/qAWMZDNJgF

[Web3 Devs Underground @Web3_Devs]

Quantum computers - the biggest threat to Bitcoin yet?

🚨 We are LIVE with Prof. @or_sattath and Dr. @DesheShai.

Watch NOW right here on X ⤵️
https://t.co/4rNuZpJEAr

[Masterkey.vc @MasterkeyVC]

@Web3_Devs @or_sattath @DesheShai ⚛️⚛️⚛️

[Masterkey.vc @MasterkeyVC]

@Web3_Devs ⚛️⚡💪