Thirdweb MCP Server
Read and write to over 2,000 blockchains. Deploy contracts, manage wallets, and interact with Web3.
- Maintained by
- thirdweb
- Hosting
- Hosted by the vendor
- Authentication
- API key
- Last checked
Authenticates with your project secret key in the URL query string.
How to connect the Thirdweb MCP server
Pick your AI client and paste the snippet. Swap the YOUR_… placeholders for your own values. New to this? Our guide to how MCP clients and servers fit together explains what each piece does.
Claude Code
claude mcp add --transport http thirdweb https://api.thirdweb.com/mcp?secretKey=YOUR_SECRET_KEYClaude Desktop and claude.ai
Name: Thirdweb
Remote MCP server URL: https://api.thirdweb.com/mcp?secretKey=YOUR_SECRET_KEYCustom connectors need a Pro, Max, Team or Enterprise plan. On Team and Enterprise an owner adds them in admin settings.
Full Claude Desktop setup guide →Cursor
{
"mcpServers": {
"thirdweb": {
"url": "https://api.thirdweb.com/mcp?secretKey=YOUR_SECRET_KEY"
}
}
}VS Code
{
"servers": {
"thirdweb": {
"type": "http",
"url": "https://api.thirdweb.com/mcp?secretKey=YOUR_SECRET_KEY"
}
}
}ChatGPT
Business, Enterprise and Edu plans (and Pro, read-only) can add this endpoint as an app in developer mode. ChatGPT setup guide →
Frequently asked questions
What is the Thirdweb MCP server?
It is a Model Context Protocol (MCP) server — a small piece of software that gives AI assistants like Claude a secure, governed connection to Thirdweb. Read and write to over 2,000 blockchains. Deploy contracts, manage wallets, and interact with Web3.
Is there an official Thirdweb MCP server?
Yes. The Thirdweb MCP server is an official integration, maintained by the vendor or the Model Context Protocol project, which makes it the safest default for business use. It is maintained by thirdweb.
Is the Thirdweb MCP server hosted, or do I run it myself?
It is hosted. Thirdweb runs the endpoint at https://api.thirdweb.com/mcp?secretKey=YOUR_SECRET_KEY, so there is nothing to install: you add the URL to your AI client and supply an API key.
Do I need an API key for the Thirdweb MCP server?
Yes. The hosted server expects an API key from your Thirdweb account. Store it in your client's secret settings rather than pasting it into shared config files.
What can an AI assistant actually do with Thirdweb?
Through this server an assistant can work with smart contracts, wallets, multi-chain, nfts — reading from and acting on Thirdweb directly instead of you copy-pasting between windows. What you allow it to do is controlled by the permissions you grant.
How do I set this up for my business?
The setup section above has copy-paste config for Claude Code, Claude Desktop, Cursor and VS Code. Once it is running against real systems, the question becomes what catches it when it acts wrongly, which is what Crox's Safety Diagnostic looks at.
New to MCP? Start with our plain-English guide to the Model Context Protocol or see how to connect AI to your business tools without writing code .
Already running this in production?
An agent with a live connection to your tools is a model that can act. Crox looks at what catches it when it acts wrongly: the layers around it, who can stop it, and where a near miss gets reported. Two days, one team, one model.