Arbitrum Transaction Preflight MCP Server

by naur9n Your server? Claim it

local only

Arbitrum Transaction Preflight runs on your own machine — the client starts it, so there is no endpoint to ping. 25 installs a week from npm. Last commit 16 Jul 2026.

Paid Arbitrum transaction simulation and risk scoring for wallets and AI agents.

Installs per day peak 132 · avg 8 · -35% w/w

a month agotoday

Installs / week

npm · arbitrum-mpp-transaction-preflight

Stars

0 open issues

16 Jul 2026

Last commit

0 releases in 90 days

—

License

TypeScript

Nothing serious here today

Today is the operative word: we check Arbitrum Transaction Preflight every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add arbitrum-transaction-preflight -- npx -y arbitrum-mpp-transaction-preflight

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "arbitrum-transaction-preflight": {
      "args": [
        "-y",
        "arbitrum-mpp-transaction-preflight"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.arbitrum-transaction-preflight]
command = "npx"
args = ["-y", "arbitrum-mpp-transaction-preflight"]

.cursor/mcp.json

{
  "mcpServers": {
    "arbitrum-transaction-preflight": {
      "args": [
        "-y",
        "arbitrum-mpp-transaction-preflight"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "arbitrum-transaction-preflight": {
      "args": [
        "-y",
        "arbitrum-mpp-transaction-preflight"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: CLIENT_PRIVATE_KEY (Dedicated low-value payer key.), SERVER_URL (Hosted paid API base URL.), CHAIN_ID (42161 for Arbitrum One.). The author declared them in the registry entry; get the values from the project itself.

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Arbitrum Transaction Preflight — questions

Answers built from our own checks of this server.

Why is there no uptime for Arbitrum Transaction Preflight?

Arbitrum Transaction Preflight runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package arbitrum-mpp-transaction-preflight was installed 25 times last week.

How do I connect Arbitrum Transaction Preflight?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls arbitrum-mpp-transaction-preflight straight from npm; nothing to host, nothing to sign up for.

How many people use Arbitrum Transaction Preflight?

The npm package arbitrum-mpp-transaction-preflight was installed 25 times in the last week. Week over week that is -35%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Arbitrum Transaction Preflight open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.