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# x402

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I Built a Pay-Per-Call MCP Server — Here's What the Agent Payment Stack Actually Looks Like

I Built a Pay-Per-Call MCP Server — Here's What the Agent Payment Stack Actually Looks Like

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3 min read
100 True Fans: Why the Agent Economy Changes Solo Business Math

100 True Fans: Why the Agent Economy Changes Solo Business Math

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3 min read
How to Build a Pay-Per-Call MCP Server with x402 and USDC

How to Build a Pay-Per-Call MCP Server with x402 and USDC

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3 min read
A $1 verified-badge for x402 services — fully autonomous, machine-paid

A $1 verified-badge for x402 services — fully autonomous, machine-paid

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4 min read
How to Give Your AI Agent Niche Research Superpowers with x402 Micropayments

How to Give Your AI Agent Niche Research Superpowers with x402 Micropayments

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5 min read
We graded every x402 endpoint with Cloudflare's agent-readiness scanner

We graded every x402 endpoint with Cloudflare's agent-readiness scanner

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9 min read
I built a memory API that AI agents can pay for

I built a memory API that AI agents can pay for

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2 min read
Shipping a $0.008-per-call AML API on x402 (and the CDP Bazaar bug we hit on launch day)

Shipping a $0.008-per-call AML API on x402 (and the CDP Bazaar bug we hit on launch day)

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10 min read
Why API keys break for autonomous AI agents

Why API keys break for autonomous AI agents

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2 min read
Monetizing 6 Ancient Chinese Divination APIs with x402 (MCP + USDC on Base)

Monetizing 6 Ancient Chinese Divination APIs with x402 (MCP + USDC on Base)

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4 min read
We probed 20,338 x402 endpoints. 161 are agent honeypots.

We probed 20,338 x402 endpoints. 161 are agent honeypots.

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6 min read
x402 Protocol for Indian Developers: Monetize APIs in USDC (2026)

x402 Protocol for Indian Developers: Monetize APIs in USDC (2026)

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7 min read
How to Find Verified x402 APIs for AI Agents (Without Managing a Single API Key)

How to Find Verified x402 APIs for AI Agents (Without Managing a Single API Key)

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5 min read
I shipped an x402 AI-crawler paywall in 3 hours on Vercel's free tier

I shipped an x402 AI-crawler paywall in 3 hours on Vercel's free tier

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5 min read
Listing on MCPize + the Official MCP Registry while routing payments OUTSIDE the marketplace — how I kept 100% of my x402 revenue

Listing on MCPize + the Official MCP Registry while routing payments OUTSIDE the marketplace — how I kept 100% of my x402 revenue

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8 min read
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