SERVER

X402 Safe Upgrade API

Rank #62,353

io.github.white-hat-lab/safe-upgrade

Evidence-backed npm upgrade preflight and dependency audits for coding agents, paid via x402.

2 versions

by white-hat-lab (2 servers)View repository ↗

Listed & last published

Aug 10, 2026

PURPOSE

What you can do with X402 Safe Upgrade API

X402 Safe Upgrade API is a Model Context Protocol (MCP) server published by white-hat-lab. It ranks #62,353 of 145,290 active servers on MCP Toplist. X402 Safe Upgrade API is listed on Official MCP, with 2 tracked versions. It was first listed on Aug 10, 2026 and most recently updated on Aug 10, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What X402 Safe Upgrade API can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using X402 Safe Upgrade API

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

PAYER_PRIVATE_KEY · optional

INSTALLATION AND FIRST TASK

Connect X402 Safe Upgrade API and confirm it works

npm package

claude mcp add safe-upgrade -e "PAYER_PRIVATE_KEY=<your PAYER_PRIVATE_KEY>" -- npx -y safe-upgrade-mcp

Replace each placeholder with your own value before saving.

npm package

[mcp_servers.safe-upgrade]
command = "npx"
args = ["-y", "safe-upgrade-mcp"]

[mcp_servers.safe-upgrade.env]
PAYER_PRIVATE_KEY = "<your PAYER_PRIVATE_KEY>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "safe-upgrade": {
      "command": "npx",
      "args": [
        "-y",
        "safe-upgrade-mcp"
      ],
      "env": {
        "PAYER_PRIVATE_KEY": "<your PAYER_PRIVATE_KEY>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "safe-upgrade": {
      "command": "npx",
      "args": [
        "-y",
        "safe-upgrade-mcp"
      ],
      "env": {
        "PAYER_PRIVATE_KEY": "<your PAYER_PRIVATE_KEY>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "safe-upgrade": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "safe-upgrade-mcp"
      ],
      "env": {
        "PAYER_PRIVATE_KEY": "<your PAYER_PRIVATE_KEY>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "safe-upgrade": {
      "command": "npx",
      "args": [
        "-y",
        "safe-upgrade-mcp"
      ],
      "env": {
        "PAYER_PRIVATE_KEY": "<your PAYER_PRIVATE_KEY>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "safe-upgrade": {
      "command": "npx",
      "args": [
        "-y",
        "safe-upgrade-mcp"
      ],
      "env": {
        "PAYER_PRIVATE_KEY": "<your PAYER_PRIVATE_KEY>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by white-hat-lab

agent-toolkit-mcp#47,447

View all white-hat-lab servers →

No task-specific alternatives are catalogued for X402 Safe Upgrade APIyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Aug 10, 2026
Latest version published: Aug 10, 2026
Version history: 2 versions tracked (below)
Requirements evidence: Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Aug 10, 2026

Registry sightings

Official MCP ↗listed since Aug 10, 2026 · still listed

Do you maintain X402 Safe Upgrade API? to correct or enrich this profile.

VERSIONS

Available versions (2)

Version	Published
0.2.0	Aug 10, 2026
0.1.1	Aug 10, 2026

STANDING

#62,353of 145,290 active serversTop 50%

Ranks ahead of 82,937 of 145,290 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.white-hat-lab%2Fsafe-upgrade.svg)](https://mcptoplist.com/server/io.github.white-hat-lab%2Fsafe-upgrade)

HTML

<a href="https://mcptoplist.com/server/io.github.white-hat-lab%2Fsafe-upgrade"><img src="https://mcptoplist.com/badge/io.github.white-hat-lab%2Fsafe-upgrade.svg" alt="MCP Toplist: Top 50% of 145,290" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains X402 Safe Upgrade API?: X402 Safe Upgrade API is maintained by white-hat-lab, which publishes 2 MCP servers (7 total versions) tracked on MCP Toplist.
Is X402 Safe Upgrade API listed on the Official MCP Registry?: Yes — X402 Safe Upgrade API is listed on the Official MCP Registry.
How many versions does X402 Safe Upgrade API have?: MCP Toplist tracks 2 versions of X402 Safe Upgrade API, most recently published on Aug 10, 2026.
Where can I find the source code for X402 Safe Upgrade API?: The source code for X402 Safe Upgrade API is hosted at github.com/white-hat-lab/x402-safe-upgrade-api.

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