SERVER

X402 Api

Rank #30,445

io.github.fernsugi/x402-api

Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets

4 versions

by fernsugi (2 servers)View repository ↗

First listed

Feb 26, 2026

Last publish date

Sep 30, 2026

PURPOSE

What you can do with X402 Api

X402 Api is a Model Context Protocol (MCP) server published by fernsugi. It ranks #30,445 of 171,126 active servers on MCP Toplist. X402 Api is listed across 3 registries — Official MCP, Glama and PulseMCP, with 4 tracked versions. It was first listed on Feb 26, 2026 and most recently updated on Sep 30, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What X402 Api can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using X402 Api

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Nov 7, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

X402_API_BASE_URL · optional
X402_WALLET_PRIVATE_KEY · optional
X402_MAX_PER_CALL_USDC · optional
X402_REFERRAL_SOURCE · optional
X402_EXPECTED_PAY_TO · optional

INSTALLATION AND FIRST TASK

Connect X402 Api and confirm it works

npm package

claude mcp add x402-api -e "X402_API_BASE_URL=<your X402_API_BASE_URL>" -e "X402_WALLET_PRIVATE_KEY=<your X402_WALLET_PRIVATE_KEY>" -e "X402_MAX_PER_CALL_USDC=<your X402_MAX_PER_CALL_USDC>" -e "X402_REFERRAL_SOURCE=<your X402_REFERRAL_SOURCE>" -e "X402_EXPECTED_PAY_TO=<your X402_EXPECTED_PAY_TO>" -- npx -y @x402-api/mcp-server

Replace each placeholder with your own value before saving.

npm package

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

[mcp_servers.x402-api.env]
X402_API_BASE_URL = "<your X402_API_BASE_URL>"
X402_WALLET_PRIVATE_KEY = "<your X402_WALLET_PRIVATE_KEY>"
X402_MAX_PER_CALL_USDC = "<your X402_MAX_PER_CALL_USDC>"
X402_REFERRAL_SOURCE = "<your X402_REFERRAL_SOURCE>"
X402_EXPECTED_PAY_TO = "<your X402_EXPECTED_PAY_TO>"

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

npm package

{
  "mcpServers": {
    "x402-api": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-api/mcp-server"
      ],
      "env": {
        "X402_API_BASE_URL": "<your X402_API_BASE_URL>",
        "X402_WALLET_PRIVATE_KEY": "<your X402_WALLET_PRIVATE_KEY>",
        "X402_MAX_PER_CALL_USDC": "<your X402_MAX_PER_CALL_USDC>",
        "X402_REFERRAL_SOURCE": "<your X402_REFERRAL_SOURCE>",
        "X402_EXPECTED_PAY_TO": "<your X402_EXPECTED_PAY_TO>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "x402-api": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-api/mcp-server"
      ],
      "env": {
        "X402_API_BASE_URL": "<your X402_API_BASE_URL>",
        "X402_WALLET_PRIVATE_KEY": "<your X402_WALLET_PRIVATE_KEY>",
        "X402_MAX_PER_CALL_USDC": "<your X402_MAX_PER_CALL_USDC>",
        "X402_REFERRAL_SOURCE": "<your X402_REFERRAL_SOURCE>",
        "X402_EXPECTED_PAY_TO": "<your X402_EXPECTED_PAY_TO>"
      }
    }
  }
}

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-api": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@x402-api/mcp-server"
      ],
      "env": {
        "X402_API_BASE_URL": "<your X402_API_BASE_URL>",
        "X402_WALLET_PRIVATE_KEY": "<your X402_WALLET_PRIVATE_KEY>",
        "X402_MAX_PER_CALL_USDC": "<your X402_MAX_PER_CALL_USDC>",
        "X402_REFERRAL_SOURCE": "<your X402_REFERRAL_SOURCE>",
        "X402_EXPECTED_PAY_TO": "<your X402_EXPECTED_PAY_TO>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "x402-api": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-api/mcp-server"
      ],
      "env": {
        "X402_API_BASE_URL": "<your X402_API_BASE_URL>",
        "X402_WALLET_PRIVATE_KEY": "<your X402_WALLET_PRIVATE_KEY>",
        "X402_MAX_PER_CALL_USDC": "<your X402_MAX_PER_CALL_USDC>",
        "X402_REFERRAL_SOURCE": "<your X402_REFERRAL_SOURCE>",
        "X402_EXPECTED_PAY_TO": "<your X402_EXPECTED_PAY_TO>"
      }
    }
  }
}

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

npm package

{
  "mcpServers": {
    "x402-api": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-api/mcp-server"
      ],
      "env": {
        "X402_API_BASE_URL": "<your X402_API_BASE_URL>",
        "X402_WALLET_PRIVATE_KEY": "<your X402_WALLET_PRIVATE_KEY>",
        "X402_MAX_PER_CALL_USDC": "<your X402_MAX_PER_CALL_USDC>",
        "X402_REFERRAL_SOURCE": "<your X402_REFERRAL_SOURCE>",
        "X402_EXPECTED_PAY_TO": "<your X402_EXPECTED_PAY_TO>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by fernsugi

x402 MCP Server#134,591

View all fernsugi servers →

No task-specific alternatives are catalogued for X402 Apiyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Feb 26, 2026
Latest version published: Sep 30, 2026
Version history: 4 versions tracked (below)
Requirements evidence: Declared by Glama, last synced Nov 7, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Nov 7, 2026

Registry sightings

Official MCP ↗listed since Apr 25, 2026 · still listed
Glama ↗listed since May 6, 2026 · still listed
PulseMCP ↗listed since May 22, 2026 · still listed

Do you maintain X402 Api? to correct or enrich this profile.

VERSIONS

Available versions (4)

Version	Published
1.0.5	Sep 30, 2026
1.0.4	Sep 29, 2026
1.0.2	Feb 26, 2026
0.1.0	Nov 25, 2024

STANDING

#30,445of 171,126 active serversTop 25%

Ranks ahead of 140,681 of 171,126 servers on MCP Toplist.

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.fernsugi%2Fx402-api.svg)](https://mcptoplist.com/server/io.github.fernsugi%2Fx402-api)

HTML

<a href="https://mcptoplist.com/server/io.github.fernsugi%2Fx402-api"><img src="https://mcptoplist.com/badge/io.github.fernsugi%2Fx402-api.svg" alt="MCP Toplist: Top 25% of 171,126" /></a>

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

FAQ

Frequently asked questions

Who maintains X402 Api?: X402 Api is maintained by fernsugi, which publishes 2 MCP servers (4 total versions) tracked on MCP Toplist.
Is X402 Api listed on the Official MCP Registry?: Yes — X402 Api is listed on the Official MCP Registry, alongside Glama and PulseMCP.
How many versions does X402 Api have?: MCP Toplist tracks 4 versions of X402 Api, most recently published on Sep 30, 2026.
Where can I find the source code for X402 Api?: The source code for X402 Api is hosted at github.com/fernsugi/x402-api-mcp-server.

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