HTTP 412 precondition-failed MCP server

Meaning of HTTP 412.

Category: Dev tools

● Online, checked 295 min ago · 127 ms

Source: official MCP Registry entry io.github.sadri-dridi/http-412 · repository

Direct MCP URL and setup

CLAUDE CODE

claude mcp add --transport http io-github-sadri-dridi-http-412 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-412/mcp

CURSOR / VS CODE (mcp.json)

{ "mcpServers": { "io-github-sadri-dridi-http-412": { "url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-412/mcp" } } }