HTTP 426 upgrade-required MCP Server

io.github.sadri-dridi/http-426

What is the HTTP 426 upgrade-required MCP server?

Meaning of HTTP 426.

Copy-paste configuration for popular MCP clients.

transport: http

Config generated by PluginBench — verify against the source before use.

~/.cursor/mcp.json

{
  "mcpServers": {
    "http-426": {
      "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-426/mcp"
    }
  }
}

Active

Meaning of HTTP 428.

Active

Meaning of HTTP 429.

Active

Meaning of HTTP 431.

Active

Meaning of HTTP 451.

Active

Meaning of HTTP 500.

Active

Meaning of HTTP 501.