Foundry Zksync MCP Server

by jrigada Your server? Claim it

local only

Foundry Zksync runs on your own machine — the client starts it, so there is no endpoint to ping. 142 installs a week from npm. Last commit 23 Feb 2026.

Expose foundry-zksync (forge, cast, anvil-zksync) tools for zkSync Era development

Installs per day peak 18 · avg 6 · +51% w/w

a month agotoday

142

Installs / week

npm · foundry-zksync-mcp

Stars

0 open issues

23 Feb 2026

Last commit

no releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check Foundry Zksync 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 foundry-zksync -- npx -y foundry-zksync-mcp

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

{
  "mcpServers": {
    "foundry-zksync": {
      "command": "npx",
      "args": [
        "-y",
        "foundry-zksync-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.foundry-zksync]
command = "npx"
args = ["-y", "foundry-zksync-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "foundry-zksync": {
      "command": "npx",
      "args": [
        "-y",
        "foundry-zksync-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "foundry-zksync": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "foundry-zksync-mcp"
      ]
    }
  }
}

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Foundry Zksync — questions

Answers built from our own checks of this server.

Why is there no uptime for Foundry Zksync?

Foundry Zksync 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 foundry-zksync-mcp was installed 142 times last week.

How do I connect Foundry Zksync?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls foundry-zksync-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Foundry Zksync?

The npm package foundry-zksync-mcp was installed 142 times in the last week. Week over week that is +51%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Foundry Zksync open source?

Yes — it is published under the MIT licence, written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.