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EVMcrispr

MCP Server

EVMcrispr ships a hosted Model Context Protocol server so AI assistants can write, validate, and simulate EVML scripts for you. It speaks streamable HTTP, requires no authentication, and is available at:

https://mcp.evmcrispr.com/mcp

The server exposes seven tools:

  • list-modules — list all available EVMcrispr modules
  • describe-module — commands and helpers of a specific module
  • get-docs — fetch guide and reference documentation
  • validate-evml — parse and statically check a script
  • simulate-evml — simulate a script on a forked chain
  • create-link — generate a link that opens a script in the terminal
  • publish-module — publish a reusable EVML module

The server never touches your funds: it only validates, simulates, and generates links. Execution always happens in the EVMcrispr terminal with your own wallet, where you review and sign every transaction yourself.

ChatGPT

Section titled “ChatGPT”

Custom MCP connectors require a paid plan (Plus, Pro, Business, Enterprise, or Edu) and developer mode:

  1. Open Settings → Apps & Connectors → Advanced settings and enable Developer mode.
  2. Back in Apps & Connectors, click Create to add a custom connector.
  3. Name it EVMcrispr, set the MCP server URL to https://mcp.evmcrispr.com/mcp, and choose No authentication.
  4. In a chat, open the + menu → Developer mode and enable the EVMcrispr connector for that conversation.

Claude

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On claude.ai or the Claude desktop app (paid plans):

  1. Go to Settings → Connectors.
  2. Click Add custom connector.
  3. Name it EVMcrispr and paste https://mcp.evmcrispr.com/mcp as the URL.
  4. Enable it from the tools menu in any chat.

Claude Code

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Add the server from your terminal:

Terminal window
claude mcp add --transport http evmcrispr https://mcp.evmcrispr.com/mcp

Or, to share it with everyone working on a repository, commit a .mcp.json file at the project root:

{
  "mcpServers": {
    "evmcrispr": {
      "type": "http",
      "url": "https://mcp.evmcrispr.com/mcp"
    }
  }
}

Run /mcp inside Claude Code to check the connection status.

Cursor

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Add to Cursor (one-click install), or create the config by hand in .cursor/mcp.json in your project — or ~/.cursor/mcp.json to enable it everywhere:

{
  "mcpServers": {
    "evmcrispr": {
      "url": "https://mcp.evmcrispr.com/mcp"
    }
  }
}

Then check Settings → MCP to verify the server shows its tools.

Try It

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Once connected, ask your assistant things like:

  • "What EVMcrispr modules are available?"
  • "Write an EVML script that transfers 100 DAI on Gnosis Chain, simulate it, and give me a link to run it."
  • "Validate this EVML script and explain any errors."

Next Steps

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