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402-LAB

io.github.Kairose-master/402-lab

Source code

About 402-LAB

402-LAB is an MCP server published by the GitHub account Kairose-master. Budget-capped x402 buyer: delegate USDC in plain words, agent discovers and pays per call.

It runs on your own machine: your AI client starts it from the MCP bundle package 402-lab.mcpb at version 0.1.0.

It asks for one secret: BUYER_PRIVATE_KEY. Give it a key with the least access that still works.

Version 0.1.0 was published on 25 September 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 7 automated checks on registry metadata: 4 pass, 0 warn, 0 fail, 3 info. How we check.

What it asks for

VariableRequiredSecretDescription
BUYER_PRIVATE_KEYYesYes0x-prefixed private key of the paying wallet (keep only small amounts)
NETWORKNoNoeip155:84532 (Base Sepolia, default) or eip155:8453 (Base mainnet)
MANDATE_MAX_USDCNoNoAbsolute cap any mandate may reach
CATALOG_URLSNoNoComma-separated seller product.json URLs searched besides the x402 Bazaar

Checks

CheckResultDetail
Source repository linkedPasshttps://github.com/Kairose-master/handsel-mandate
Version pinnedPassEvery package has an explicit version
Secrets requestedInfoAsks for 1 secret: BUYER_PRIVATE_KEY
Known package registryPassAll packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownershipInfoName verified via GitHub account Kairose-master
Registry text aimed at the AIPassDescription and settings contain no hidden characters or instructions to the AI
Code red flagsInfoPackage could not be read (too large)

Popularity & health: 53 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity0 / 40

0 GitHub stars, no download count, no Hacker News posts found. Best two of the three, each on a log scale.

Activity25 / 25

Last push 2026-10-06, no GitHub release, 77 commits in 90 days.

Issue health8 / 15

0 closed of 1 issues, too few to judge. No data, so half marks.

Our checks20 / 20

0 warnings, each costing a fifth.

0 forks, 6 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry nameio.github.Kairose-master/402-lab
PublisherGitHub account Kairose-master
How the name is verifiedName verified via GitHub account Kairose-master. The registry ties the name prefix to that account or domain; it does not check the code.
TypeLocal: runs on your machine from a package
Packagesmcpb https://github.com/Kairose-master/handsel-mandate/releases/download/mcp-v0.1.0/402-lab.mcpb 0.1.0 (stdio)
Version0.1.0
Published
Last updated
Source repositoryhttps://github.com/Kairose-master/handsel-mandate
Websitehttps://handsel-mandate-demo.vercel.app
CategoryFinance & payments (assigned by keyword rule, not by hand)

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