Mr. N

Father, Builder and Investor

[Exa @ExaAILabs]

We're excited to partner with @coinbase to enable agents to natively pay for web search, via x402!

x402 is an open protocol that enables agents to pay via HTTP, governed by the Linux Foundation. When an Exa API request is made without an API key, Exa now returns a 402 status code with payment information that an agent can act on.

[jack @jack]

https://t.co/Ev47RckJH5

[Coinbase 🛡️ @coinbase]

https://t.co/mVRe3TMSyr

[fabda.eth @fabdarice]

Many have missed all the cool new features of x402 since v2. Here’s a recap ⬇️

✨ Networks: multi-chain (EVM, Solana, Aptos, Stellar via CAIP-2) + support for card networks & APMs
✨ Assets: ERC-20s, stablecoins (USDC/EURC), SPL + fiat rails via extensions
✨ Transport: HTTP (native 402), MCP, agent-to-agent (A2A)
✨ Facilitator (optional): abstracts complexity by verifying payments + handling settlement (onchain or fiat rails)

Payment Schemes:
✨ exact (per request)
✨ up to (metered usage)
✨ streaming (coming soon)

Extensions (where it gets powerful):
✨ Auth (SIWX / wallet-signed identity)
✨ Discovery (marketplace, pricing, reputation)
✨ Receipts (verifiable proof of payment)
✨ Gasless / sponsored transactions

Extensible by design: add new chains, assets, rails, and logic.

[Rohan Paul @rohanpaul_ai]

Coinbase CEO, Brian Armstrong: Some great insights on how they are using internally hosted AI Agents.

"It’s connected to every Slack message, every Google Doc, and every Salesforce data confluence. Now, this is all linked up and the data is all aggregated, so you can ask these agents questions. Every team is using it—legal, finance, everything.

It’s like the "Oracle of Coinbase." I’ve started to ask it things that go beyond just simple prompting, like "Hey, can you write this kind of memo for me?" I’m asking these AI agents now, as CEO, "What should I be aware of in the company that I might not be aware of?"

It will tell me, "Did you know that there’s actually disagreement on this team about the strategy?" I realized I didn't know that, but the AI does because it can read every Slack message and every Google Doc. Tobi, who is on my board, calls this "reverse prompting." Instead of telling the AI agent what you want to do, you ask it what you should be thinking more about."

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From @theallinpod YT channel (link in comment)

[Coinbase Developer Platform🛡️ @CoinbaseDev]

https://t.co/lX6WE8NX4v

[Coinbase Developer Platform🛡️ @CoinbaseDev]

x402 is heating up 🔥

We’ve been heads-down on your feedback to make agent payments smoother, faster, and more universal.

Key updates 👇🧵

[Marc Andreessen 🇺🇸 @pmarca]

There is no substitute for the person who Knows What To Do.

[George Sivulka @gsivulka]

https://t.co/fdKmCTuaUk

[Mr. N @xiaoningning]

@SawyerMerritt @grok x money is built on top of blockchain and/or stablecoin?

[OpenAI @OpenAI]

Introducing EVMbench—a new benchmark that measures how well AI agents can detect, exploit, and patch high-severity smart contract vulnerabilities. https://t.co/op5zufgAGH

[David Duong🛡️ @DavidDuong]

Our latest @CoinbaseInsto Markets Podcast explores AI’s role in the recent cross-asset sell off and talks about what levels to watch on bitcoin in this mostly technically driven market. Negative gamma near the $60-70k zone may be exacerbating downside moves, while positive gamma closer to $85-90k levels may pin price action to the upside. 

Indeed, despite Strategy (MSTR) buying BTC and Bitmine buying ETH over the last week, the price action largely continues to look lackluster. We also discuss Vitalik Buterin’s recent write up on the future of Ethereum Layer-2 networks. Watch the full video:

[Mr. N @xiaoningning]

@_patrickogrady @commonwarexyz Huge!

[LayerZero @LayerZero_Core]

https://t.co/vVPUwJ2BSl

[Mr. N @xiaoningning]

@Polymarket @grok how is the liquidity of the up/down prediction event being handled? How could the bot make money out of this if the liquidity is low.

[Anthropic @AnthropicAI]

AI can make work faster, but a fear is that relying on it may make it harder to learn new skills on the job.

We ran an experiment with software engineers to learn more. Coding with AI led to a decrease in mastery—but this depended on how people used it.
https://t.co/lbxgP11I4I

[ℏεsam @Hesamation]

https://t.co/LsZLoCMqTN

[Boris Cherny @bcherny]

I'm Boris and I created Claude Code. I wanted to quickly share a few tips for using Claude Code, sourced directly from the Claude Code team. The way the team uses Claude is different than how I use it. Remember: there is no one right way to use Claude Code -- everyones' setup is different. You should experiment to see what works for you!

[Coinbase Platform @CoinbasePltfrm]

We re-engineered our Solana transaction processing to a specialized streaming model to meet scaling demands.

Since deploying, we have achieved:
- 12x increase in Solana transaction processing throughput.
- 5x increase in Solana withdrawal volume capacity.
- 20% reduction in deposit latency under standard network conditions.

The system has successfully handled traffic spikes of 8x baseline volume with no performance degradation. This ensures Coinbase is built to scale alongside Solana’s growth, enabling broader support of the Solana ecosystem, its developers, and its users.

[Coinbase Platform @CoinbasePltfrm]

Bitcoin stands as a foundational pillar of the crypto economy at Coinbase. We remain committed to leading this charge, building the infrastructure, and delivering the products that will unlock Bitcoin's full potential for generations to come.

Read the full report: https://t.co/uDq7NlGOQ1