Indexnow Toolkit MCP Server

by aiwebsitepipeline Your server? Claim it

answering

Indexnow Toolkit is answering right now. Last checked 2 min ago. It exposes 3 tools.

Build and validate IndexNow payloads, check key files, and diff sitemaps into a submission list.

Uptime history 91 days of history · worst day 92%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

174 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Indexnow Toolkit every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add indexnow-toolkit --transport http https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.indexnow-toolkit]
url = "https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "indexnow-toolkit": {
      "url": "https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "indexnow-toolkit": {
      "type": "http",
      "url": "https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

Available tools 3

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

build

build_indexnow_payload

Validates a key and URL list against the IndexNow spec and returns the exact JSON POST body, the endpoint, a ready-to-run curl command, and the reason for every URL it dropped. Enforces the same-host rule, the 10000-URL batch limit, https/http consistency, fragment stripping and de-duplication.

diff

diff_sitemaps

Parses two sitemap documents (urlset XML, sitemapindex XML, or a newline-delimited URL list) and reports added, removed and lastmod-changed URLs. Returns only the URLs worth submitting to IndexNow. Pass a key to also get the finished, validated POST body.

validate

validate_indexnow_key

Checks an IndexNow key against the protocol schema (length, character set) and, given a host, returns the exact URL the key file must be served from, the exact contents it must have, and the curl command to verify it. Most 403 rejections are a key file that returns an HTML 404 page with a 200 status.

Endpoints

URL	Transport	State	Latency	Checked
https://indexnow-toolkit-mcp.lipmichal.workers.dev/mcp	streamable-http	answering	209 ms	2 min ago

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6 tools answering

Indexnow Toolkit — questions

Answers built from our own checks of this server.

What can Indexnow Toolkit do?

It exposes 3 tools, read directly from the server on our last check. Among them: build_indexnow_payload, diff_sitemaps, validate_indexnow_key. 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 Indexnow Toolkit working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 174 ms. The bar chart above shows every period we have measured.

How do I connect Indexnow Toolkit?

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 Indexnow Toolkit need an API key?

No. Indexnow Toolkit completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Indexnow Toolkit?

It answers our handshake in 174 ms on average, which is faster than 76% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.