Meson x402 icon

Meson x402

by MesonFi

v0.1.3 Updated Dec 11, 2025 2.72MiB
CWS
15
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#88386
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Description

Meson is a lightweight Chrome extension built for developers and Web3 enthusiasts to explore the x402 protocol. It connects with MetaMask and Phantom, integrates with the Bazaar service (x402 Discovery) to automatically fetch available x402 endpoints, and also lets you manually input your own, with recently used entries stored for quick access. With Meson, you can test and invoke x402 interfaces, enter request body data, parse response data according to schema, perform payments, generate X-Payment Headers, and complete requests directly from your browser. You can also view a full history of completed calls and generated payment headers. Key Features πŸ”— Connects seamlessly with MetaMask and Phantom for secure wallet operations 🧩 Supports automatic endpoint discovery via Bazaar (x402 Discovery) ✍️ Allows manual input of custom x402 endpoints with recently used tracking πŸ“€ Supports request body input and schema-based response parsing for x402 calls πŸ’Έ Enables x402 payments and X-Payment Header generation πŸ“œ Displays full history of completed calls and generated payment headers βš™οΈ Clean, developer-friendly UI for testing and debugging Meson gives Web3 developers an intuitive way to understand, experiment with, and build on top of the x402 protocol.
Meson x402 screenshot 1Meson x402 screenshot 2Meson x402 screenshot 3Meson x402 screenshot 4

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Permissions (5)

Permissions

activeTabβ„Ή Can access the current tab when you click the extension clipboardReadβ„Ή Can read from your clipboard sidePanel storageβ„Ή Can store data locally in your browser tabsβ„Ή Can see your open tabs and their URLs

Details

Version 0.1.3
Updated Dec 11, 2025
Size 2.72MiB
First Seen Mar 26, 2026