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apidefects.com

Checks and reports known defects or issues with MCP servers and API operations before they are used.

1 endpoint1 known toolsFirst detected September 17, 2026Last detected September 17, 2026

ENDPOINT 1

https://apidefects.com/mcp

No auth detected

MCP server metadata

Name
errata
Version
errata-2026-09-10@269d44ac2d3f
Capabilities
tools
Server instructions

One tool: check_defects. Give it the identity of an MCP server or an API operation you are about to use, and it says what is known to be wrong with it. Every record carries a check you can rerun; nothing here asks to be believed. `never_examined` means this registry has not looked, not that the thing works.

Known tools 1

check_defects

Before using an MCP server or an API operation, ask what is known to be wrong with it.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.errata]
url = "https://apidefects.com/mcp"
enabled = true
Claude Code

.mcp.json

{
  "mcpServers": {
    "errata": {
      "type": "http",
      "url": "https://apidefects.com/mcp"
    }
  }
}
Claude Desktop

Settings → Connectors → Add custom connector

Name: errata
Remote MCP URL: https://apidefects.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

.vscode/mcp.json

Add to Visual Studio Code
{
  "servers": {
    "errata": {
      "type": "http",
      "url": "https://apidefects.com/mcp"
    }
  }
}
Generic MCP

Client-specific MCP configuration

{
  "name": "errata",
  "transport": "streamable-http",
  "url": "https://apidefects.com/mcp"
}
MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.