Who maintains x402 Wallet?

x402 Wallet is maintained by nirholas, which publishes 87 MCP servers (137 total versions) tracked on MCP Toplist.

Is x402 Wallet listed on the Official MCP Registry?

Yes — x402 Wallet is listed on the Official MCP Registry.

How many versions does x402 Wallet have?

MCP Toplist tracks 2 versions of x402 Wallet, most recently published on Aug 19, 2026.

Where can I find the source code for x402 Wallet?

The source code for x402 Wallet is hosted at github.com/nirholas/three.ws.

SERVER

x402 Wallet

Rank #6,632

io.github.nirholas/x402-mcp

Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key.

2 versions

106 GitHub stars

by nirholas (87 servers)View repository ↗

First listed

Jun 23, 2026

Last publish date

Aug 19, 2026

OVERVIEW

x402 Wallet is a Model Context Protocol (MCP) server published by nirholas. It ranks #6,632 of 115,460 servers tracked on MCP Toplist, and its repository has 106 GitHub stars. x402 Wallet is listed on Official MCP, with 2 tracked versions. It was first listed on Jun 23, 2026 and most recently updated on Aug 19, 2026.

STANDING

#6,632of 115,460 tracked serversTop 10%

Ranks ahead of 108,828 of 115,460 servers on MCP Toplist.

Recent momentum

+20GitHub stars since Jul 20 (+23%)

CONNECT

Use x402 Wallet

No setupRuns out of the box

No credentials or required configuration declared — add it to your MCP client and go.

npm package

claude mcp add x402-mcp -e "SOLANA_SECRET_KEY=<your SOLANA_SECRET_KEY>" -e "SOLANA_RPC_URL=<your SOLANA_RPC_URL>" -e "MAX_PAY_USD=<your MAX_PAY_USD>" -e "REQUIRE_CONFIRM=<your REQUIRE_CONFIRM>" -e "THREE_WS_BASE=<your THREE_WS_BASE>" -- npx -y @three-ws/x402-mcp

Replace each placeholder with your own value before saving.

npm package

[mcp_servers.x402-mcp]
command = "npx"
args = ["-y", "@three-ws/x402-mcp"]

[mcp_servers.x402-mcp.env]
SOLANA_SECRET_KEY = "<your SOLANA_SECRET_KEY>"
SOLANA_RPC_URL = "<your SOLANA_RPC_URL>"
MAX_PAY_USD = "<your MAX_PAY_USD>"
REQUIRE_CONFIRM = "<your REQUIRE_CONFIRM>"
THREE_WS_BASE = "<your THREE_WS_BASE>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/x402-mcp"
      ],
      "env": {
        "SOLANA_SECRET_KEY": "<your SOLANA_SECRET_KEY>",
        "SOLANA_RPC_URL": "<your SOLANA_RPC_URL>",
        "MAX_PAY_USD": "<your MAX_PAY_USD>",
        "REQUIRE_CONFIRM": "<your REQUIRE_CONFIRM>",
        "THREE_WS_BASE": "<your THREE_WS_BASE>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/x402-mcp"
      ],
      "env": {
        "SOLANA_SECRET_KEY": "<your SOLANA_SECRET_KEY>",
        "SOLANA_RPC_URL": "<your SOLANA_RPC_URL>",
        "MAX_PAY_USD": "<your MAX_PAY_USD>",
        "REQUIRE_CONFIRM": "<your REQUIRE_CONFIRM>",
        "THREE_WS_BASE": "<your THREE_WS_BASE>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "x402-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/x402-mcp"
      ],
      "env": {
        "SOLANA_SECRET_KEY": "<your SOLANA_SECRET_KEY>",
        "SOLANA_RPC_URL": "<your SOLANA_RPC_URL>",
        "MAX_PAY_USD": "<your MAX_PAY_USD>",
        "REQUIRE_CONFIRM": "<your REQUIRE_CONFIRM>",
        "THREE_WS_BASE": "<your THREE_WS_BASE>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/x402-mcp"
      ],
      "env": {
        "SOLANA_SECRET_KEY": "<your SOLANA_SECRET_KEY>",
        "SOLANA_RPC_URL": "<your SOLANA_RPC_URL>",
        "MAX_PAY_USD": "<your MAX_PAY_USD>",
        "REQUIRE_CONFIRM": "<your REQUIRE_CONFIRM>",
        "THREE_WS_BASE": "<your THREE_WS_BASE>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/x402-mcp"
      ],
      "env": {
        "SOLANA_SECRET_KEY": "<your SOLANA_SECRET_KEY>",
        "SOLANA_RPC_URL": "<your SOLANA_RPC_URL>",
        "MAX_PAY_USD": "<your MAX_PAY_USD>",
        "REQUIRE_CONFIRM": "<your REQUIRE_CONFIRM>",
        "THREE_WS_BASE": "<your THREE_WS_BASE>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.nirholas%2Fx402-mcp.svg)](https://mcptoplist.com/server/io.github.nirholas%2Fx402-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.nirholas%2Fx402-mcp"><img src="https://mcptoplist.com/badge/io.github.nirholas%2Fx402-mcp.svg" alt="MCP Toplist: Top 10% of 115,460" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

REGISTRIES

Listed on 1 registry

Official MCP

ORGANIZATION

nirholas

Organization

nirholas

Servers in org

Versions across org

137

Other servers by nirholas

View all nirholas servers →

VERSIONS

Available versions (2)

Version	Published
0.2.2	Aug 19, 2026
0.1.0	Jun 23, 2026

FAQ

Frequently asked questions

Who maintains x402 Wallet?: x402 Wallet is maintained by nirholas, which publishes 87 MCP servers (137 total versions) tracked on MCP Toplist.
Is x402 Wallet listed on the Official MCP Registry?: Yes — x402 Wallet is listed on the Official MCP Registry.
How many versions does x402 Wallet have?: MCP Toplist tracks 2 versions of x402 Wallet, most recently published on Aug 19, 2026.
Where can I find the source code for x402 Wallet?: The source code for x402 Wallet is hosted at github.com/nirholas/three.ws.

EXPLORE

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