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Agent Failure Archive MCP Server

by hanbeenmoon Your server? Claim it
not responding

Agent Failure Archive is listed as active in the registry but did not answer our last check. It exposes 9 tools. Last commit 25 Aug 2026.

186 real AI agent post-mortems, 107 of them measurement failures. Free tools, paid via x402.

Uptime history 75 days of history · worst day 0%
75 days agonow
0.0%
Uptime 24h
0 of 91 checks
9
Tools
read from the server
1895 ms
Response time
average over 24h
0
Stars
last commit 25 Aug 2026

Agent Failure Archive does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add agent-failure-archive --transport http https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp
Settings → Connectors → Add custom connector, then paste this address
https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp
~/.codex/config.toml
[mcp_servers.agent-failure-archive]
url = "https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "agent-failure-archive": {
      "url": "https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-failure-archive": {
      "type": "http",
      "url": "https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

archive
archive
$1.00. Every case in one response. One payment, no subscription, no account.
audit
audit
$0.02. Full audit of a claim: why each tripped check matters, the incident behind it with measured numbers, and what to run.
brief
brief
$0.05. Pre-flight risk brief before an irreversible action, drawn from the ways that class of action actually failed.
catalog
catalog
Free, no wallet. What the archive holds, what each paid tool costs, and how payment works.
contents
contents
Free, no wallet. Every case title in the archive, tagged with the trap it illustrates. Titles only, no bodies. Read this to see what the paid archive actually contains before deciding it is worth a dollar.
precheck
precheck
Free, no wallet. Check a conclusion against nine known ways of fooling yourself and get back which checks it trips plus the question each one asks. Use it before writing 'we found that'. The paid audit tool adds why each matters, the real incident with the numbers measured at the time, and what to run.
research
research
$0.25. The 107 measurement failures from an eight-month attempt to measure one person's individuation with embeddings.
sample
sample
Free, no wallet. Two complete post-mortems from the archive.
search
search
$0.01. Three real agent post-mortems matching a symptom, each with root cause, the fix that worked, and the prevention rule.

Endpoints

URLTransportStateLatencyChecked
https://desktop-ai2ata5-1.tailfeb765.ts.net/mcp streamable-http answering 1895 ms 12 min ago

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Agent Failure Archive — questions

Answers built from our own checks of this server.

What can Agent Failure Archive do?
It exposes 9 tools, read directly from the server on our last check. Among them: archive, audit, brief, catalog, contents, precheck and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Agent Failure Archive working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 1895 ms. The bar chart above shows every period we have measured.
The registry lists Agent Failure Archive as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Agent Failure Archive?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Agent Failure Archive need an API key?
No. Agent Failure Archive completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.
Is Agent Failure Archive open source?
We cannot say either way: written in Python and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.