The Errata MCP server,
connected in one click.
What is known to be broken in an MCP server or API operation, with the check that found it. Connect the official Errata MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Errata to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http errata https://apidefects.com/mcpRun in your terminal, then restart Claude Code.
Errata · https://apidefects.com/mcp
What your AI can do with Errata
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “check_defects”: 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.”
How secure is the Errata MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Errata holds up.
Security grade B
gate scanned 1 tools on Oct 15, 2026. A few things are worth a look before you connect.
- mediumcheck_defects: References secrets or data exfiltration
Official endpoint
Operated by Errata (apidefects.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Errata adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Errata
Choose Errata in the gate directory. No sign-in needed.
Use it anywhere
Errata's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Errata exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
check_defects — 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.
Who runs the Errata MCP server?
The Errata MCP server at a glance
https://apidefects.com/mcpQuestions, answered
Is there an official Errata MCP server?
Yes — Errata operates its own remote MCP server at apidefects.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Errata to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Errata in the directory. No account or sign-in is needed. From then on, Errata's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Errata runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Errata MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Errata in minutes. No credit card required.
Connect more than just Errata
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Errata in: Claude · Claude Code · ChatGPT · Cursor · VS Code