Codex MCP Server
@Codex-Data
About Codex MCP Server
A Model Context Protocol server for the Codex API
Config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"codex-mcp": {
"command": "npx",
"args": [
"@codex-data/codex-mcp"
]
}
}
}Tools
No tools detected
Fetch the live tool list by running this server in a temporary sandbox using the button above.
Overview
What is Codex MCP Server?
Codex MCP Server is a Model Context Protocol (MCP) server that provides enriched blockchain data from the Codex platform. It can be used with any MCP-compatible client, such as Claude Desktop or Claude CLI, to enable AI assistants to query live blockchain data.
How to use Codex MCP Server?
You need a Codex API key from the Codex Dashboard. You can run the server directly via npx @codex-data/codex-mcp without installation, or clone the repo, install dependencies with pnpm install, and build with pnpm build. Start it with pnpm start (or pnpm dev for auto-reload). Configure it as an MCP server in Claude Desktop by editing the config file and adding a codex-data entry with command and env containing your API key. Alternatively, use claude mcp add codex-data -e CODEX_API_KEY=<key> npx @codex-data/codex-mcp to integrate with Claude CLI.
Key features of Codex MCP Server
- Provides enriched blockchain data via Codex API
- Works with any MCP-compatible client (e.g., Claude Desktop)
- Can run via npx without local installation
- Supports stdio transport for embedding in CLI tools
- Configured using environment variable for API key
- Open source project hosted on GitHub
Use cases of Codex MCP Server
- Query on-chain data through natural language in Claude Desktop
- Integrate blockchain data into AI-powered workflows
- Build custom CLI tools that combine AI and blockchain information
FAQ from Codex MCP Server
What is Codex MCP Server?
An MCP server that enriches AI assistants with blockchain data by connecting to the Codex platform.
How do I obtain a Codex API key?
You can get your API key from the Codex Dashboard at https://dashboard.codex.io.
How do I integrate with Claude Desktop?
Open Claude Desktop settings, go to the Developer tab, edit the config, and add a server configuration with the command npx -y @codex-data/codex-mcp and environment variable CODEX_API_KEY.
What transport does the server use?
It uses MCP’s stdio transport, intended for embedding in CLI tools.
Is installing the server locally required?
No. You can run it without installation using npx @codex-data/codex-mcp. For local development, clone the repository and build with pnpm.
Frequently asked questions
What is Codex MCP Server?
An MCP server that enriches AI assistants with blockchain data by connecting to the Codex platform.
How do I obtain a Codex API key?
You can get your API key from the Codex Dashboard at https://dashboard.codex.io.
How do I integrate with Claude Desktop?
Open Claude Desktop settings, go to the Developer tab, edit the config, and add a server configuration with the command `npx -y @codex-data/codex-mcp` and environment variable `CODEX_API_KEY`.
What transport does the server use?
It uses MCP’s stdio transport, intended for embedding in CLI tools.
Is installing the server locally required?
No. You can run it without installation using `npx @codex-data/codex-mcp`. For local development, clone the repository and build with pnpm.
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