web3ctx MCP Server: Install & Setup

Install web3ctx in Claude Code

Claude Code

claude mcp add --transport http farseensh-web3ctx https://mcp.scarai.xyz/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "farseensh-web3ctx": {
      "url": "https://mcp.scarai.xyz/mcp"
    }
  }
}

Frequently asked questions

What does the web3ctx MCP server do?

Version-true web3 docs, ABIs and human-validated integration recipes over MCP.

Is the web3ctx MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does web3ctx run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add web3ctx to Claude Code?

Run: claude mcp add --transport http farseensh-web3ctx https://mcp.scarai.xyz/mcp

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