# Universal MCP OAuth Gateway

> Universal MCP OAuth Gateway — noqtar-excalidraw-mcp-oauth. Use this tool when you need to add OAuth 2.0 authentication to Excalidraw tools or external MCP servers, enabling secure connections from clients like Google Spark and Gemini. It solves authentication and authorization problems by acting as a proxy and gateway, providing a secure interface for clients to access protected resources. This tool accepts client requests and returns authenticated responses, making it ideal for use cases requiring standardized and secure authentication protocols.

Canonical page: https://skillsregistry.net/skills/noqtar-excalidraw-mcp-oauth  
JSON: https://api.skillsregistry.net/v1/skills/noqtar-excalidraw-mcp-oauth

## Description

A deployable serverless MCP OAuth gateway and proxy that adds OAuth 2.0 authentication to Excalidraw tools or any external MCP server, enabling secure connections from clients like Google Spark and Gemini.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** cloud-infra
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/h4cmc3nl1g)
- **Repository:** <https://github.com/noqtar/excalidraw-mcp-oauth>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "noqtar-excalidraw-mcp-oauth"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/noqtar-excalidraw-mcp-oauth` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/noqtar-excalidraw-mcp-oauth/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt