SERVER

x402 Doctor

Rank #85,073

com.twelvepermissions/x402-doctor

Diagnose x402 seller endpoints: what is wrong with your 402 challenge, and how to fix it.

1 version

by tsharpe2282-web (3 servers)View repository ↗

Listed & last published

Aug 17, 2026

PURPOSE

What you can do with x402 Doctor

x402 Doctor is a Model Context Protocol (MCP) server published by tsharpe2282-web. It ranks #85,073 of 167,945 active servers on MCP Toplist. x402 Doctor is listed on Official MCP, with 1 tracked version. It was first listed on Aug 17, 2026 and most recently updated on Aug 17, 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 Doctor can and cannot do

MCP Toplist connected to the public endpoint on Oct 26, 2026 and it listed 3 tools. Tool names are not stored, so what they do is not catalogued here.

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

REQUIREMENTS

What you need before using x402 Doctor

VerifiedNo 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.

Verified by MCP Toplist on Oct 26, 2026: the public endpoint completed the MCP handshake and listed 3 tools without credentials.

Declared by the Official MCP Registry, last synced Nov 3, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect x402 Doctor and confirm it works

Remote · HTTP

claude mcp add --transport http x402-doctor https://x402-doctor.tsharpe.workers.dev/mcp

Remote · HTTP

[mcp_servers.x402-doctor]
url = "https://x402-doctor.tsharpe.workers.dev/mcp"

Add to ~/.codex/config.toml.

Remote · HTTP

https://x402-doctor.tsharpe.workers.dev/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

Remote · HTTP

{
  "mcpServers": {
    "x402-doctor": {
      "url": "https://x402-doctor.tsharpe.workers.dev/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Remote · HTTP

{
  "servers": {
    "x402-doctor": {
      "type": "http",
      "url": "https://x402-doctor.tsharpe.workers.dev/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

Remote · HTTP

{
  "mcpServers": {
    "x402-doctor": {
      "serverUrl": "https://x402-doctor.tsharpe.workers.dev/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Remote · HTTP

{
  "mcpServers": {
    "x402-doctor": {
      "url": "https://x402-doctor.tsharpe.workers.dev/mcp"
    }
  }
}

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.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Aug 17, 2026
Latest version published: Aug 17, 2026
Version history: 1 version tracked (below)
Requirements evidence: Verified by MCP Toplist on Oct 26, 2026: the public endpoint completed the MCP handshake and listed 3 tools without credentials.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Aug 17, 2026

Registry sightings

Official MCP ↗listed since Aug 18, 2026 · still listed

Do you maintain x402 Doctor? to correct or enrich this profile.

VERSIONS

Available versions (1)

Version	Published
1.0.0	Aug 17, 2026

STANDING

#85,073of 167,945 active servers

Ranks ahead of 82,872 of 167,945 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/com.twelvepermissions%2Fx402-doctor.svg)](https://mcptoplist.com/server/com.twelvepermissions%2Fx402-doctor)

HTML

<a href="https://mcptoplist.com/server/com.twelvepermissions%2Fx402-doctor"><img src="https://mcptoplist.com/badge/com.twelvepermissions%2Fx402-doctor.svg" alt="MCP Toplist: #85,073 of 167,945" /></a>

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

FAQ

Frequently asked questions

Who maintains x402 Doctor?: x402 Doctor is maintained by tsharpe2282-web, which publishes 3 MCP servers (2 total versions) tracked on MCP Toplist.
Is x402 Doctor listed on the Official MCP Registry?: Yes — x402 Doctor is listed on the Official MCP Registry.
How many versions does x402 Doctor have?: MCP Toplist tracks 1 version of x402 Doctor, most recently published on Aug 17, 2026.
Where can I find the source code for x402 Doctor?: The source code for x402 Doctor is hosted at github.com/tsharpe2282-web/twelve-permissions.

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