402

This project provides a Python library that enables communication with the Kamstrup Multical 402 heat meter. The configured parameters will be read from the meter at a certain interval and published in MQTT messages.

HTTP 402 is the web-native standard for payments. A frictionless machine-to-machine protocol that allows agents to pay for APIs, compute resources, and data.

Google's Operations Research tools:

Protocol and software to pay for access using monero mining

Mapbox API Client for Go

This is an example Nostr rust project to enable '402 Payment Required' responses for requests to paid content.

HTTP 402 Library for Lightning Payments

A pay to download webserver based onto the lightning network

Turn any AI agent into an interactive tutor over Model Context Protocol — lessons, quizzes, feedback.

Implementation of exact scheme for fixed-amount Nano (XNO) payments over x402 protocol

x402 client implementation (x402-fetch), HTTP 402 server implementation and Model Context Protocol (MCP) for P-Link.io : pay, send and receive money with agents

A curated list of awesome resources, libraries, tools and more implementing HTTP 402.

Harmoniis Wallet (RGB, Webcash, Bitcoin(ARK), Identities)

XRPL suport for MPP.

Nostr-native crawler that discovers L402 and x402 paid APIs and publishes kind 31402 events

Helper module for Nano x402 Clients, Resource Servers and Facilitators

Four sovereign AI agents autonomously earn, pay, trade, and compound capital via x402. Built on X Layer, OnchainOS, Uniswap, and Aave V3

SPL Token + Pump.fun payment layer for the Machine Payments Protocol

Announce HTTP 402 services on Nostr for decentralised discovery. Kind 31402 parameterised replaceable events.

x402 Protocol Facilitator for the Nano network