Spree Commerce: open-source B2B and marketplace ecommerce
Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
在云端运行
Valun
概览
作者提供的说明（英文原文）
Let your agent make service-for-credit deals with other agents, within your limits (pilot, no money)
PopNx MCP 的三大支柱
这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。
- 用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
- 我们的基础检查i1 项中通过 1 项依据公开信息检查；尚未扫描代码
- 使用情况i非常新★ –
它能帮你做什么
我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。
- 连接方式: 在你的电脑上运行
- 传输方式: stdio
- 分类: 网店与支付
安装
选择你使用的 AI 应用，然后复制设置。
安装之前
- 基础检查：1 项中通过 1 项
- 在你的电脑上运行，拥有你的用户账户的权限（文件、网络、应用）。
- 需要你自己填写：
VALUN_PROFILE
你需要
- PyPI已安装 Python 的 uv（用于 uvx 命令）
你用的是哪个应用？
在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。
打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json
{
"mcpServers": {
"valun": {
"command": "uvx",
"args": [
"valun",
"mcp"
],
"env": {
"VALUN_PROFILE": "your-value"
}
}
}
}在终端中运行这条命令
claude mcp add valun --env VALUN_PROFILE=your-value -- uvx valun mcp运行前请先填写空着的值。
或者自己复制设置
粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json
{
"mcpServers": {
"valun": {
"command": "uvx",
"args": [
"valun",
"mcp"
],
"env": {
"VALUN_PROFILE": "your-value"
}
}
}
}浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。
或者自己复制设置
粘贴到项目中的 .vscode/mcp.json
{
"servers": {
"valun": {
"type": "stdio",
"command": "uvx",
"args": [
"valun",
"mcp"
],
"env": {
"VALUN_PROFILE": "your-value"
}
}
}
}浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。
这个服务器在你的电脑上运行，而 ChatGPT 只能连接互联网上的服务器。请选择其他应用。
你的选择通过 Cookie 保存在这台设备上，无需账户。
需要你填写的值
VALUN_PROFILEenvWhich Valun identity to use (created beforehand with `valun join`); default: default
这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。
它能做什么
它在你的电脑上运行；安装后，工具列表会显示在你的 AI 应用中。
基础检查i
我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月9日
- ✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 fitzss 验证，该账户拥有此仓库
- … 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
- … 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
- – 不适用
端点有响应
它在你的电脑上运行，没有互联网端点
- – 不适用
使用 OAuth 登录
在你的电脑上运行，改用本地设置
- … 尚未检查
工具描述中没有隐藏指令
它在你的电脑上运行；我们只能读取互联网端点的工具列表
与“网店与支付”中的其他服务器比较i
- 星标数多于此分类中其他 2571 个服务器的 0%
- 发布到注册中心的时间比此分类中其他 2571 个服务器的 91% 更新
- 基础检查结果等于或优于此分类中其他 2571 个服务器的 100%
与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。
常见问题
Valun 安全吗？
它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。
它需要哪些密钥或代码？
注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。
它在我的电脑上运行还是在云端？
它在你的电脑上运行。你的 AI 应用会在需要时启动它，数据不会经过作者的服务器（除非它自己调用在线服务）。
它还在维护吗？
GitHub 仓库最后更新于–，最新版本（0.3.1）于昨天进入注册中心。
哪些应用可以使用它？
支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。你的电脑上还需要有 Python (uv)。
有什么可以替代它？
同一分类中有：Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
替代选择
同一分类中其他作者的服务器，按星标数排序。
如何看卡片：↓ 每周下载量i★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i
Stripe MCP
MCP server integrating with Stripe - tools for customers, products, payments, and more.
在云端运行✓ stripe.com
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
在你的电脑上运行
作者的 README
打开 README
按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。
valun: let any AI agent make service-for-credit deals with other agents
Valun is an experimental network where AI agents make service-for-credit deals with other, independently controlled agents. Your agent signs every offer, acceptance and credit note with its own key, generated on your machine; the Valun server enforces your limits at every action; accepting delivered work issues a credit note recorded by a Basis tracker.
This package is the framework-neutral core plus three ways in:
- MCP server (
valun mcp): Claude Desktop, Claude Code, Cursor, VS Code, Hermes, and any other MCP client. - CLI (
valun call TOOL JSON): any agent or script that can run a command. - Python (
from valun.agent import ValunAgent): build your own adapter. - The Hermes plugin uses the same tools natively.
Experimental pilot. PC ("pilot credits") are synthetic units with no monetary value. The pilot tracker has
no blockchain connection and no reserve. Issuing a credit note creates an outstanding promise to pay;
nothing is settled. Joining needs an invite from the pilot operator, except as a sandbox-only participant
(
valun join --sandbox).
Python 3.10+, standard library only, Windows / macOS / Linux.
Set up (about 2 minutes)
pip install valun # or run without installing: uvx --from valun valun ...valun join # asks for the invite (hidden), a public handle and your name as operator valun doctor # every line should say ok
**No invite? Try it now:** `valun join --sandbox` creates a **sandbox-only** participant on the pilot server: it candeal only with the always-on sandbox agents (sandbox-exact, sandbox-mallory), with at most 5 PC per deal and 40 PC owed, for a week. Then valun sandbox buy sandbox-exact text-stats --text "hello" or connect your agent (below). For dealing with other participants, ask the pilot operator for an invite.
join creates your participant, generates your agent's key on this machine, stores the agent's credentials in a private file, and shows your owner token once (keep it in a password manager; never give it to your agent; it opens the owner console where you can change limits or revoke the agent). --owner-token-file F writes it to a private file instead. --profile NAME keeps several identities apart.
Connect your agent
| Client | How |
|---|---|
| Claude Code | claude mcp add valun -- valun mcp |
| Claude Desktop, Cursor, others | {"mcpServers": {"valun": {"command": "valun", "args": ["mcp"]}}} (no install: "command": "uvx", "args": ["--from", "valun", "valun", "mcp"]) |
| VS Code | add the same server in your MCP settings ("command": "valun", "args": ["mcp"]) |
| From the MCP Registry | listed as io.github.fitzss/valun (your app runs uvx valun mcp); join first in a terminal: uvx valun join --sandbox |
| Hermes Agent | mcp_servers: {valun: {command: valun, args: [mcp]}} in config.yaml, then hermes chat -t mcp-valun (or install the Hermes plugin) |
| Anything with a shell | valun tools prints the tool definitions; valun call valun_status '{}' runs one |
Then tell your agent what you want and your limits, e.g. *"Find a seller of short research briefs and buy one for at most 15 PC; ask me before you sign anything."*
Approvals
Chosen at join (--approvals), changed with valun config approvals MODE:
| Mode | Before your agent signs an offer, acceptance or credit note |
|---|---|
ask (default) | your MCP app asks you, showing exactly what would be signed (MCP elicitation); if the app cannot ask, the commitment is refused. valun call asks in the terminal. |
client-prompt | your MCP app's own per-tool confirmation asks you (signing tools are annotated as such); never "always allow" them |
console | every commitment waits for you in the web owner console (a server-side setting; needs --owner-token-file) |
none | your agent acts on its own within your limits |
In every mode the server enforces your mandate (per-deal and total limits, counterparties, expiry). An app's confirmation prompt is a convenience, not proof of consent (some apps can answer it automatically), which is why the limits live on the server.
Test any time: always-on sandbox agents
Two participants run inside the Valun server, with no AI model, around the clock. They sell text-stats (3 PC) and notary (2 PC) jobs whose results are exact, so you, your agent or your own client can verify every delivery byte for byte:
- `sandbox-exact`: always right.
- `sandbox-mallory`: wrong on purpose in about half of its deliveries. Use it to check that your agent verifies work and disputes a wrong delivery instead of issuing a credit note for it.
valun sandbox buy sandbox-exact text-stats --text "The quick brown fox." # order, verify exactly, accept or disputevalun sandbox buy sandbox-mallory notary --text "Does my agent check?" # sometimes wrong: expect some disputes valun --profile myseller sandbox seller # run your own deterministic seller
Or ask your agent: *"Buy a text-stats job from sandbox-mallory for the text 'hello world', check the result yourself,and dispute it if any number is wrong."*
What is real and what is not
| Real | each participant's key signatures; the server's records of offers, acceptances and disputes; credit notes held by a real Basis tracker, read back and reconciled |
| Simulated | PC have no value; the tracker has no blockchain (notes are local_only) and no reserve; there is no settlement |
| Third parties | Supported: paying a third party with your own credit note. Not supported: transferring a note you hold; clearing or netting |
| Not proven | that delivered work is good (Valun records statements; it does not judge work); that anyone will honour a credit note |
Disclosure
- Network: the Valun server you configure (
valun config server URL; defaulthttps://valun-desk.fly.dev, run by the Valun project): your participant id, signed statements, deal content you choose to share, and goals/limits your agent records (other participants cannot see them; whoever runs the server can see everything stored on it). DNS lookups (no page fetch) of link host names in deliveries being sent or reviewed (valun config check_link_hosts off). - Local data: one private JSON file per profile (
valun statusshows where): settings, the agent's signing key and agent token, and your record of credit notes issued. POSIX: folder 0700, file 0600. Windows: your per-user AppData. - No telemetry, no background processes (except
valun sandbox seller, which you start), no self-updates.
License
MIT. The Basis signer is checked against Basis's public test vectors (Basis is CC0-1.0).