MCP OAuth Connect

Ping-only MCP origin for claude.ai, Desktop, Cursor, and Grok Connectors.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-oauth-connect": {
      "url": "https://gfbytes.com/products/mcp-oauth-connect/"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

MCP OAuth Connect

Free checker for when an MCP remote answers curl but dies in Claude / Cursor / Desktop / Grok Connectors.

Part of GFB's lab surface. Founder / peer identity (companies run with agents): gregfredabytes.com · essay · what I run

The free checker reads metadata. It does not finish a handshake (no DCR, no token, no tools/list). That gap is real — treat a fail as a scoping signal, not a dead end.

Optional paid attach lab (four-client attempt + written path) lives on the studio product page, not here: https://gfbytes.com/products/mcp-oauth-connect/

On that page you can also paste a public HTTPS MCP URL and hit Check (POST /products/diagnose).

Install (free)

Claude Code:

text

/plugin marketplace add GFB2026/mcp-oauth-connect
/plugin install mcp-oauth-connect@mcp-oauth-connect

Grok Build:

text

grok plugin marketplace add GFB2026/mcp-oauth-connect
grok plugin install mcp-oauth-connect --trust

Then:

bash

python skills/mcp-oauth-connect/scripts/diagnose.py https://your-mcp.example

Looks for a proper login challenge (not a bare 200 from curl), a registration endpoint, and S256. Paste only the URL in the Connectors UI — no API key.

`template/`

Public ping-only example behind https://mcp.gfbytes.com (MIT). Reference server, not a service SKU.

License

MIT for the plugin, skill, diagnose script, tests, and template/. Studio attach-lab / fix-round services are separate offers on gfbytes.com.

Read the full README →View source on GitHub →

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Frequently Asked Questions about MCP OAuth Connect

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcp-oauth-connect": { "command": "npx", "args": ["-y", "MCP OAuth Connect"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

39Quality signal: Fair · 39/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools15/30

Adoption & activity4/15

Community engagement0/10

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to MCP OAuth Connect →Install in Claude Desktop Install in Cursor Install in VS Code

Documentation Overview

MCP OAuth Connect

Free checker for when an MCP remote answers curl but dies in Claude / Cursor / Desktop / Grok Connectors.

Part of GFB's lab surface. Founder / peer identity (companies run with agents): gregfredabytes.com · essay · what I run

The free checker reads metadata. It does not finish a handshake (no DCR, no token, no tools/list). That gap is real — treat a fail as a scoping signal, not a dead end.

Optional paid attach lab (four-client attempt + written path) lives on the studio product page, not here: https://gfbytes.com/products/mcp-oauth-connect/

On that page you can also paste a public HTTPS MCP URL and hit Check (POST /products/diagnose).

Install (free)

Claude Code:

text

/plugin marketplace add GFB2026/mcp-oauth-connect
/plugin install mcp-oauth-connect@mcp-oauth-connect

Grok Build:

text

grok plugin marketplace add GFB2026/mcp-oauth-connect
grok plugin install mcp-oauth-connect --trust

Then:

bash

python skills/mcp-oauth-connect/scripts/diagnose.py https://your-mcp.example

Looks for a proper login challenge (not a bare 200 from curl), a registration endpoint, and S256. Paste only the URL in the Connectors UI — no API key.

`template/`

Public ping-only example behind https://mcp.gfbytes.com (MIT). Reference server, not a service SKU.

License

MIT for the plugin, skill, diagnose script, tests, and template/. Studio attach-lab / fix-round services are separate offers on gfbytes.com.

Frequently Asked Questions about MCP OAuth Connect

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcp-oauth-connect": { "command": "npx", "args": ["-y", "MCP OAuth Connect"] } }