402-LAB MCP Server

Budget-capped x402 buyer: delegate USDC in plain words, agent discovers and pays per call.

Local serverstdio

What is the 402-LAB MCP Server?

402-LAB is an MCP integration. Budget-capped x402 buyer: delegate USDC in plain words, agent discovers and pays per call.

Packages and local setup

The published mcpb package is https://github.com/Kairose-master/handsel-mandate/releases/download/mcp-v0.1.0/402-lab.mcpb, version 0.1.0. Its declared MCP transport is stdio.

The package declares BUYER_PRIVATE_KEY (required): 0x-prefixed private key of the paying wallet (keep only small amounts); NETWORK: eip155:84532 (Base Sepolia, default) or eip155:8453 (Base mainnet); MANDATE_MAX_USDC: Absolute cap any mandate may reach; CATALOG_URLS: Comma-separated seller product.json URLs searched besides the x402 Bazaar.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.1.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related developer tools MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
BUYER_PRIVATE_KEY0x-prefixed private key of the paying wallet (keep only small amounts)Yes
NETWORKeip155:84532 (Base Sepolia, default) or eip155:8453 (Base mainnet)Optional
MANDATE_MAX_USDCAbsolute cap any mandate may reachOptional
CATALOG_URLSComma-separated seller product.json URLs searched besides the x402 BazaarOptional