Skim402 MCP Server

Clean web reader for AI agents. Pays $0.002/call in USDC on Base via x402. No API keys.

Local serverstdio

What is the Skim402 MCP server?

Most developer tooling work still happens through a UI a human drives. Skim402 MCP server moves it into the conversation instead. Clean web reader for AI agents. Pays $0.002/call in USDC on Base via x402. No API keys.

The short version

A dollar funds roughly 500 reads. Full step-by-step (with screenshots, for non-crypto-native devs): https://skim402.com/wallet.

The tools it exposes

The server publishes 7 tools. What each one is for:

  • GitHubhttps://github.com/JessieJanie/skim402
  • Variable — Required
  • SKIM_WALLET_PRIVATE_KEYyes
  • SKIM_MAX_PRICE_USD — no
  • SKIM_API_URL — no
  • SKIM_TIMEOUT_MS — no
  • read_url — Reads any URL and returns clean Markdown with a YAML frontmatter block

Getting it running

Installation goes through your MCP client rather than a global install: point it at skim-mcp on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.

What it needs from you

Configuration is passed through the environment: SKIM_WALLET_PRIVATE_KEY, SKIM_API_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

How it compares

Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Skim402's toolset — GitHub, Variable, SKIM_WALLET_PRIVATE_KEY and 4 more — is a fair guide to whether it matches your workflow. It is maintained by JessieJanie; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Skim402's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Things to watch

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
GitHub<https://github.com/JessieJanie/skim402>
VariableRequired
SKIM_WALLET_PRIVATE_KEY**yes**
SKIM_MAX_PRICE_USDno
SKIM_API_URLno
SKIM_TIMEOUT_MSno
read_urlReads any URL and returns clean Markdown with a YAML frontmatter block.

How to install the Skim402 MCP server

{
  "mcpServers": {
    "skim": {
      "command": "npx",
      "args": ["-y", "skim-mcp"],
      "env": {
        "SKIM_WALLET_PRIVATE_KEY": "0xYOUR_BASE_WALLET_PRIVATE_KEY"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
SKIM_WALLET_PRIVATE_KEYCredential the server authenticates with.Yes
SKIM_API_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • Use Skim402 to GitHub.
  • Use Skim402 to Variable.
  • Use Skim402 to SKIM WALLET PRIVATE KEY.

Frequently asked questions

It connects Skim402 to MCP-compatible AI assistants such as Claude and Cursor, exposing 7 tools (GitHub, Variable, SKIM_WALLET_PRIVATE_KEY, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Skim402 directly.