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I Tested 70 AI Agent Services. The Average Quality Score Was 34 Out of 100.

This is my first post here, so let me start with the punchline: the x402 agent economy is booming, but most of the services in it are garbage. I know …

aiweb3agentsx402
Dev.to Apr 28, 2026, 02:44 UTC
EN

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

Why an MCP server for fortune-telling? I'm not joking. Hear me out. The Chinese divination corpus is deterministic computation dressed up as mysticism…

mcpx402apiwebdev
Dev.to Apr 27, 2026, 07:53 UTC
EN

ZAP1 + x402: privacy-preserving proof of paid access, anchored to Zcash

ZAP1 + x402: privacy-preserving proof of paid access, anchored to Zcash why this matters x402 is a draft HTTP standard for pay-per-request monetizatio…

zcashx402attestationprivacy
Dev.to Apr 18, 2026, 18:07 UTC
EN

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

Your AI agent needs weather data. You haven't configured a weather API. The agent stops, asks you to sign up, get keys, set environment variables, res…

aiopensourceapix402
Dev.to Apr 17, 2026, 20:23 UTC
EN

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

MCPize is a nicely built marketplace for MCP servers. The pitch on the front page is that creators keep 85% of monetised calls and the platform takes …

mcpx402solanaai
Dev.to Apr 17, 2026, 17:20 UTC
EN

x402 upto vs MPP Sessions: Two Philosophies of Usage-Based Payments

A deep comparison of x402 upto and MPP Sessions: how they handle variable-cost payments, micropayment streaming, escrow vs allowance models, and when …

web3x402agentsmpp
Dev.to Apr 13, 2026, 16:29 UTC
EN

How We Built a Robot Mesh Network Using XMTP and x402

Robots today speak thousands of proprietary languages. ROS topics. Vendor SDKs. Custom REST APIs. Each one incompatible with the next. AI agents have …

airoboticsx402xmtp
Dev.to Mar 13, 2026, 20:53 UTC

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