MCP server

Errata

com.apidefects/errata

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

What is known to be broken in an MCP server or API operation, with the check that found it.

Website

At a glance

Type

MCP server

Publisher

apidefects.com (verified by the MCP Registry)

Status

Working at last check

Tools

1

Token cost

About 360 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http errata https://apidefects.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.errata]
url = "https://apidefects.com/mcp"

Gemini CLI

{"mcpServers":{"errata":{"httpUrl":"https://apidefects.com/mcp"}}}

Cursor

{"mcpServers":{"errata":{"url":"https://apidefects.com/mcp"}}}

VS Code

{"servers":{"errata":{"type":"http","url":"https://apidefects.com/mcp"}}}

Antigravity

agy mcp add errata https://apidefects.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"errata","server_url":"https://apidefects.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"errata","server_url":"https://apidefects.com/mcp"}

Tools

• check_defects ~360 tokens
  Before using an MCP server or an API operation, ask what is known to be wrong with it. Takes one identity: an MCP registry entry (io.github.owner/repo), a deployment URL, an OpenAPI document URL, or a host. Answers one of three things, and they are three rather than two: `defects_known` - open recor

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