Cipher X402 MCP Server

@cryptomotifs

Basic information

About Cipher X402 MCP Server

MCP server exposing 8 CIPHER x402-gated Solana/crypto/macro tools. AI agents auto-pay via x402 (USDC on Base) per tool call.

Cipher X402 MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "cipher-x402": {
      "command": "npx",
      "args": [
        "-y",
        "cipher-x402-mcp"
      ]
    }
  }
}

Cipher X402 MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is cipher-x402-mcp?

cipher-x402-mcp is an MCP server that provides eight Solana, crypto, and macroeconomic tools to any MCP‑aware client. Seven tools are gated behind the x402 payment protocol (USDC on Base, $0.005–$0.25 per call), and one educational tool is free. The server acts as a forward‑only relay, never holding caller funds, and is MIT‑licensed.

How to use cipher-x402-mcp?

Install via npx -y cipher-x402-mcp and add the configuration to Claude Desktop, Cursor, Cline, Continue, or any MCP‑over‑stdio client. For remote HTTP transport, deploy to Vercel (the /mcp route serves JSON‑RPC messages). The free tool and self‑hosted setup require no API keys.

Key features of cipher-x402-mcp

Eight tools covering Solana, crypto, and macro data
x402 payment protocol with automated USDC settlement on Base
One free tool: solana_wallet_security_audit_rules()
Stateless architecture – no user sessions or fund custody
Self‑hostable (MIT license) with no runtime dependencies
Compatible with Claude Desktop, Cursor, Cline, Continue, and Smithery

Use cases of cipher-x402-mcp

Perform a Solana wallet security audit for free
Check if a password hash prefix appears in known breaches
Evaluate GitHub repository health based on commits, issues, and activity
Retrieve FRED macroeconomic time series for financial analysis
Calculate Jito tip profitability for Solana MEV strategies

Frequently asked questions

What is the free tool?

The free tool is `solana_wallet_security_audit_rules()`, which returns a local ruleset for auditing Solana wallet security. It does not require a payment.

How does x402 payment work?

The agent calls a paid tool without payment, receives an HTTP 402 response with an accept‑list, signs an EIP‑3009 authorization for the required USDC amount, and re‑invokes the tool with the signed header. The server forwards the payment to the upstream facilitator for settlement on Base.

What MCP clients are supported?

Claude Desktop, Cursor, Cline, Continue, and any client that supports MCP over stdio. The server also provides a streamable HTTP transport at `https://cipher-x402-mcp.vercel.app/mcp`.

Can I self‑host the server?

Yes. Clone the repository, run `npm install && npm run build`, then use `npm start` for stdio or `npm run start:http` for HTTP. Requires Node.js 20+ and no API keys.

Are there usage limits?

Self‑hosted deployments have no limits. Managed plans on MCPize (Free, Starter, Pro, Team) include rate limits ranging from 10 requests/minute to

Comments

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