Anchor X402

Name: Anchor X402
Author: hypeprinter007-stack

作者：hypeprinter007-stack版本 0.3.2i★ –i电脑或云端

注册名称io.github.hypeprinter007-stack/anchor-x402

安装

概览

作者提供的说明（英文原文）

x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.

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尚未统计★ –

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: 电脑或云端
传输方式: stdio, Streamable HTTP
分类: 其他
你需要填写：ANCHOR_WALLET_PRIVATE_KEY

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
在作者的服务器上运行：你向它提出的内容会经过他们的服务器。
需要你自己填写： ANCHOR_WALLET_PRIVATE_KEY

标为机密的值是你账户的钥匙。千万不要分享给别人，也不要粘贴到聊天里。

你需要

在云端运行无需安装任何东西，通过互联网连接
npm已安装 Node.js（用于 npx 命令）

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

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 …”。

适用于网页版、桌面版和手机版 Claude：

打开 Settings → Connectors
点击 Add custom connector
粘贴下面的地址，然后点击 Add
如果要求登录，请登录作者的服务

https://api.anchor-x402.com/mcp

或者在你的电脑上运行

打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json

{
  "mcpServers": {
    "anchor-x402": {
      "command": "npx",
      "args": [
        "-y",
        "anchor-x402-mcp"
      ],
      "env": {
        "ANCHOR_WALLET_PRIVATE_KEY": "your-value"
      }
    }
  }
}

在终端中运行这条命令

claude mcp add --transport http anchor-x402 https://api.anchor-x402.com/mcp

或者在你的电脑上运行

claude mcp add anchor-x402 --env ANCHOR_WALLET_PRIVATE_KEY=your-value -- npx -y anchor-x402-mcp

运行前请先填写空着的值。

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "anchor-x402": {
      "url": "https://api.anchor-x402.com/mcp"
    }
  }
}

或者在你的电脑上运行

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "anchor-x402": {
      "command": "npx",
      "args": [
        "-y",
        "anchor-x402-mcp"
      ],
      "env": {
        "ANCHOR_WALLET_PRIVATE_KEY": "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。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "anchor-x402": {
      "type": "http",
      "url": "https://api.anchor-x402.com/mcp"
    }
  }
}

或者在你的电脑上运行

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "anchor-x402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "anchor-x402-mcp"
      ],
      "env": {
        "ANCHOR_WALLET_PRIVATE_KEY": "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。

ChatGPT 只能连接互联网上的服务器：

打开网页版 ChatGPT → Settings → Connectors (Apps)
点击 Create 或 Add（部分套餐需要先在 Advanced 中开启 Developer mode）
粘贴下面的地址，起个名字，然后保存
如果要求登录，请登录作者的服务

https://api.anchor-x402.com/mcp

菜单名称可能因套餐和版本不同而略有差异。

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

ANCHOR_WALLET_PRIVATE_KEY 机密必填 env
EVM private key (0x-prefixed hex). The wallet pays for x402 calls in USDC on Base mainnet. Fund with USDC before use.

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

我们还没有读取这个服务器的工具列表；我们会轮流检查各个端点。

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6日

✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 hypeprinter007-stack 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
… 尚未检查
端点有响应
尚未检查；我们会轮流检查各个端点
… 尚未检查
使用 OAuth 登录
尚未检查；我们会轮流检查各个端点
… 尚未检查
工具描述中没有隐藏指令
尚未检查；我们会在检查端点时读取工具列表

与“其他”中的其他服务器比较i

星标数多于此分类中其他 32451 个服务器的 0%
发布到注册中心的时间比此分类中其他 32451 个服务器的 24% 更新
基础检查结果等于或优于此分类中其他 32451 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

Anchor X402 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？

你需要填写：ANCHOR_WALLET_PRIVATE_KEY

它在我的电脑上运行还是在云端？

两种方式都可以：安装在你的电脑上，或者连接云端版本。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（0.3.2）于3个月前进入注册中心。

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。它通过 URL 连接，所以接受远程 MCP 服务器的应用也可以使用，例如开启开发者模式的 ChatGPT。

有什么可以替代它？

同一分类中有：Spec Driven Development, Remote Desktop Commander, Recta

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：★ 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

Spec Driven Development

作者：formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

在你的电脑上运行★ 440MIT14个月前更新

安装

Remote Desktop Commander

作者：desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

在云端运行★ 211昨天更新

安装

Recta

作者：RectaBuild

Cheaper cross-chain stablecoin routes for AI agents; 5 % of the verified saving, nothing if none.

在云端运行今天更新

安装

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。

anchor-x402-mcp

MCP server exposing 14 anchor-x402 services as tools any Claude Desktop / Cursor / Codex / Continue agent can call. Pay-per-use USDC via x402 on Base mainnet — no API keys, no subscriptions.

Two transports — pick by who holds the wallet key

This package (stdio) needs a funded EVM private key in the local process (ANCHOR_WALLET_PRIVATE_KEY) and pays for each call on your behalf. Convenient, but you are handing a hot key to a process.

Streamable HTTP — POST https://api.anchor-x402.com/mcp — needs no install and no key handover. It exposes all 18 services (four more than this package: roll_random, investigate_wallet, ledger_summary, ledger_report), and you pay per call with a PAYMENT-SIGNATURE header, so your key never leaves your side.

"mcpServers": { "anchor-x402": { "url": "https://api.anchor-x402.com/mcp" } } }

Clients that speak remote MCP natively take the url form above. For one that only launches stdio processes, bridge it:

"mcpServers": { "anchor-x402": { "command": "npx", "args": ["-y", "mcp-remote", "https://api.anchor-x402.com/mcp"] } } }

Protocol revisions supported: 2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26 — both the stateless era and the initialize handshake era, on one endpoint. server/discover and tools/list are free; tools/call is paid.

Payment is the ordinary x402 dance, surfaced inside MCP rather than around it: an unpaid tools/call returns a result (not a JSON-RPC error) with isError: true and the challenge in structuredContent.accepts, plus the canonical payment-required header. Sign one of the options and retry the identical call with PAYMENT-SIGNATURE. The challenge comes back as a result on purpose — an agent can read it and pay, whereas a JSON-RPC error would be swallowed by the client before the model ever saw it.

Server card: /.well-known/mcp/server-card.json. A worked client, including the adapter that bridges a stock x402 fetch wrapper to the MCP result shape, is in examples/agent/mcp-paid-call.mjs.

The rest of this README covers the stdio package.

What an agent gets

Fourteen tools, $0.001–$0.05 per call.

Commodity primitives (9, $0.001–$0.01):

Tool	Price	What it does
`anchor_hash`	$0.005	Anchor any 32-byte hash to Base + Solana mainnet in parallel; returns both tx URLs
`screen_wallet`	$0.005	Wallet risk pre-flight — OFAC sanctions + address-reputation (drainer/phishing/mixer) → allow/review/block
`attest_decision`	$0.010	Attest a decision — sign it yourself or let the treasury sign — then dual-chain anchor; free re-verify at /v1/attest/verify
`decode_tx`	$0.001	Structured decode of any mainnet tx (Base / Ethereum / Solana)
`resolve_name`	$0.001	Cross-chain name resolution (ENS, Bonfida SNS)
`token_price`	$0.001	USD spot price for any token by symbol or chain+contract
`decode_calldata`	$0.001	4byte selector + ABI param decode for raw EVM calldata
`parse_datetime`	$0.001	Freeform datetime string → structured ISO 8601
`intel_wallet`	$0.005	Bundled wallet intelligence: balances + activity + identity + sanctions in one call

Universal LLM endpoints (5, $0.01–$0.05) — added in v0.2:

Tool	Price	What it does
`roast`	$0.05	Witty 3-5 paragraph roast of any target — wallet, tweet, code, idea, anything
`oracle`	$0.05	Yes/no oracle. Returns YES/NO/MAYBE + reason + dual-chain anchored `(question \	answer \	timestamp)` hash. Cryptographic receipt of when you asked.
`tldr`	$0.01	Summarize a URL (fetches up to 500KB) or pasted text into 3-5 concise bullets
`aura`	$0.01	Returns color, tier (S/A/B/C/D/F), score 0-9999, and a punchy 2-3 sentence aura read
`grade`	$0.01	Academic letter grade (A+ to F) with red-pen marginalia and one-paragraph summary

The investigator (/v1/investigate, $1.77 async) and the hosted chatbot at chat.anchor-x402.com are not included in the MCP — they're accessed directly via the HTTP API and the browser respectively.

The MCP server pays for itself — your wallet gets debited automatically for each call. No prepay, no API key, no account.

Install

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

"mcpServers": { "anchor-x402": { "command": "npx", "args": ["-y", "anchor-x402-mcp"], "env": { "ANCHOR_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY" } } } }

Restart Claude Desktop. Ask: *"Anchor the hash 7646dda1564bde0ef3f3971f4c002962df64246da4aa1d8c47247e7632494710 on mainnet"* — it'll call anchor_hash and pay $0.005 USDC from your wallet.

Claude Code

Add to your project's .mcp.json:

"anchor-x402": { "command": "npx", "args": ["-y", "anchor-x402-mcp"], "env": { "ANCHOR_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY" } } }

Codex CLI (OpenAI)

Edit ~/.codex/config.toml:

[mcp_servers.anchor-x402]

command = "npx" args = ["-y", "anchor-x402-mcp"]

[mcp_servers.anchor-x402.env] ANCHOR_WALLET_PRIVATE_KEY = "0xYOUR_BASE_WALLET_PRIVATE_KEY"

Restart codex. Type /mcp to confirm anchor-x402 shows in the loaded servers list.

ChatGPT Desktop

Settings → Integrations → MCP servers → Add server. Paste:

"command": "npx", "args": ["-y", "anchor-x402-mcp"], "env": { "ANCHOR_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY" } }

Save, restart, the 14 tools appear in any chat with tool-use enabled.

Cursor

Edit ~/.cursor/mcp.json (global) or /.cursor/mcp.json (project-scoped):

"mcpServers": { "anchor-x402": { "command": "npx", "args": ["-y", "anchor-x402-mcp"], "env": { "ANCHOR_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY" } } } }

OpenAI Agents SDK (programmatic)

from openai_agents import Agent, MCPServerStdio

mcp = MCPServerStdio( command="npx", args=["-y", "anchor-x402-mcp"], env={"ANCHOR_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY"}, ) agent = Agent(name="researcher", model="gpt-4o", mcp_servers=[mcp])

Same package, same env, programmatic instead of config-driven.

Continue / Smithery / generic MCP client

Same shape — command: npx, args: [-y, anchor-x402-mcp], env carries your wallet key. The MCP SDK handles transport.

Or install via Smithery one-liner:

npx -y @smithery/cli install anchor-x402-mcp --client claude

(replace --client claude with cursor, codex, windsurf, etc.)

Run standalone

ANCHOR_WALLET_PRIVATE_KEY=0xYOUR_KEY npx anchor-x402-mcp

Speaks MCP over stdio. Pipe into any MCP-compatible client.

Funding your wallet

The wallet you set as ANCHOR_WALLET_PRIVATE_KEY needs USDC on Base mainnet. Any amount works — even $1 buys 100 anchor calls or 1000 commodity-tier calls. Send USDC to your wallet's Base address:

USDC contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Bridge from Ethereum mainnet via bridge.base.org
Buy directly on Coinbase and withdraw to Base

The MCP server signs payments via x402 — Coinbase's open HTTP-native micropayments protocol. Each request:

Hits an anchor-x402 endpoint
Gets a 402 with payment requirements
Server signs a USDC transfer authorization with your private key
Retries the request with the signed payment — the API settles via Coinbase's facilitator

You see the response, your wallet's USDC balance ticks down by the call price. Sub-second, no ledger, no account.

Environment variables

Variable	Required?	Purpose
`ANCHOR_WALLET_PRIVATE_KEY`	Yes for paid calls	EVM private key. The wallet pays for x402 calls.
`ANCHOR_API_URL`	No	Override the API base URL. Default: `https://api.anchor-x402.com`. Useful for development against a self-hosted fork.

If ANCHOR_WALLET_PRIVATE_KEY is unset, paid tool calls return a friendly 402 message explaining how to set it. /health and /openapi.json (not exposed as tools, but reachable via direct curl) work without payment.

Security notes

The private key lives in your MCP client's config file. Treat it like a hot wallet — only fund what you're willing to spend autonomously.
Recommended: generate a fresh wallet specifically for agent use. Top up periodically; don't reuse a wallet that holds significant funds.
The MCP server only signs USDC payment authorizations to anchor-x402's known treasury addresses (visible in the 402 response). It cannot drain your wallet to arbitrary addresses.
Source code is fully open at github.com/hypeprinter007-stack/anchor-x402-mcp. Audit before installing.

Verifying anchor receipts

Every anchor_hash and attest_decision call returns Base + Solana tx URLs. These are independently verifiable on the public block explorers — agents can confirm an anchor exists without re-paying:

Base: https://basescan.org/tx/ — Input Data field contains the merkle root
Solana: https://solscan.io/tx/ — Memo program data contains the same hex

The on-chain bytes are the receipt; the API response is just a convenience wrapper around them. See the on-chain verifiability primer for the full verification recipe.

Troubleshooting

"Payment required (402). Set ANCHOR_WALLET_PRIVATE_KEY..." You haven't configured a wallet. Add the env var to your MCP config and restart Claude Desktop.

"Payment failed (402). The wallet may be out of USDC..." Your wallet ran out. Send USDC on Base to the wallet address shown in the server's startup log (it logs payer=0x… to stderr).

"anchor-x402 request failed: ..." Network or DNS issue. Check https://api.anchor-x402.com/health returns 200; if not, see the status page.

License

MIT

Anchor X402

概览

PopNx MCP 的三大支柱

它能帮你做什么

安装

安装之前

或者在你的电脑上运行

或者在你的电脑上运行

或者在你的电脑上运行

或者在你的电脑上运行

需要你填写的值

它能做什么

基础检查i

作者与仓库一致

仍在维护

有许可证

端点有响应

使用 OAuth 登录

工具描述中没有隐藏指令

与“其他”中的其他服务器比较i

常见问题

替代选择

Spec Driven Development

Remote Desktop Commander

Recta

作者的 README

anchor-x402-mcp

Two transports — pick by who holds the wallet key

What an agent gets

Install

Claude Desktop

Claude Code

Codex CLI (OpenAI)

ChatGPT Desktop

Cursor

OpenAI Agents SDK (programmatic)

Continue / Smithery / generic MCP client

Run standalone

Funding your wallet

Environment variables

Security notes

Verifying anchor receipts

Troubleshooting

Links

License