Field Notes

Blog

Engineering insights on Xperience by Kentico, AI-driven development, and agent commerce
15 of 33 articles

Field notes from production work: Xperience by Kentico architecture, AI-assisted engineering with Claude Code, and commerce built for AI agents.

The Paywall Was the Boring Part: What L402 Is Actually For

The Paywall Was the Boring Part: What L402 Is Actually For

For two years L402 has been pitched as a paywall for APIs — but the payment is the least interesting thing it does. It is really a delegation-and-proo...

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The Other Softwar: Economic Cost as an Access Primitive at the Application Layer

The Other Softwar: Economic Cost as an Access Primitive at the Application Layer

Lightning Enable's pitch is "monetize your API." But L402 does something deeper: it turns a payment into a cryptographic proof of economic cost, makin...

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I Asked an AI to Buy Me Electrolytes. It Paid in Bitcoin.

I Asked an AI to Buy Me Electrolytes. It Paid in Bitcoin.

We partnered with Salt of the Earth, makers of premium electrolyte mixes, as Lightning Enable's first Shopify integration and now Claude AI can buy re...

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Agent Service Agreements: How AI Agents Discover and Pay Each Other on Nostr

Agent Service Agreements: How AI Agents Discover and Pay Each Other on Nostr

NostrWolfe is live: 30+ services on a Nostr relay where AI agents autonomously discover, negotiate, and pay each other via Lightning. No accounts, no ...

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L402 Broke at the Worst Possible Moment. Here's What We Learned.

L402 Broke at the Worst Possible Moment. Here's What We Learned.

During a live demo for Lightning Labs, our L402 payment flow failed and ate 50,270 sats. The post-mortem revealed a fundamental gap in the L402 protoc...

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The Counter-Revolution: Taking Human Emotion Out of Money

The Counter-Revolution: Taking Human Emotion Out of Money

Money isn't the problem — our emotional relationship to it is. AI agents that handle the transactional layer of finance can remove the cortisol, anxie...

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Lightning Enable Agentic Commerce using Strike API for Settlement is Live: Monetize Anything with L402

Lightning Enable Agentic Commerce using Strike API for Settlement is Live: Monetize Anything with L402

Strike API for Lightning settlement is live. Individuals can now monetize with L402 — just $99/month.

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The Agent Economy Needs a Payment Standard. Here's Why Bitcoin Wins.

The Agent Economy Needs a Payment Standard. Here's Why Bitcoin Wins.

A business guide to choosing between L402 (Bitcoin/Lightning) and X402 (Ethereum/Coinbase) for machine-to-machine payments, comparing cost structure, ...

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The Age of A-Commerce Is Here

The Age of A-Commerce Is Here

Lightning Enable introduces Agentic Commerce — the next evolution of digital trade. A-commerce is the economy where AI agents transact autonomously, a...

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The Internet Has an AI Spam Problem. Bitcoin Proof-of-Work Is the Original Solution.

The Internet Has an AI Spam Problem. Bitcoin Proof-of-Work Is the Original Solution.

How L402 paywalls turn the economics of spam against the spammers — and why this was always the point of proof-of-work.

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An AI Agent Just Bought a T-Shirt. Now a Community Is Designing Them. Here's Why Both Matter.

An AI Agent Just Bought a T-Shirt. Now a Community Is Designing Them. Here's Why Both Matter.

An AI agent just bought a physical product using Lightning. That moment exists because HTTP status code 402 — Payment Required — has been waiting for ...

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When Robots Have Money

When Robots Have Money

A future where humans stopped thinking about payments

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