Whale Alert API MCP Server

by br0ski777 Your server? Claim it

not responding

Whale Alert API is listed as active in the registry but did not answer our last check. It exposes 1 tools. Last commit 2 Sep 2026.

Track large on-chain whale transactions on Ethereum and Base. x402 micropayment.

Uptime history 91 days of history · worst day 0%

91 days agonow

0.0%

Uptime 24h

0 of 91 checks

Tools

read from the server

10 ms

Response time

average over 24h

Stars

last commit 2 Sep 2026

Whale Alert API 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.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add whale-alert --transport sse https://whale-alert.api.klymax402.com/mcp

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

https://whale-alert.api.klymax402.com/mcp

~/.codex/config.toml

[mcp_servers.whale-alert]
url = "https://whale-alert.api.klymax402.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "whale-alert": {
      "url": "https://whale-alert.api.klymax402.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "whale-alert": {
      "type": "sse",
      "url": "https://whale-alert.api.klymax402.com/mcp"
    }
  }
}

Available tools 1

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

crypto

crypto_track_whale_transactions

Use this when you need to track large on-chain transactions (whale movements) on Ethereum or Base. Returns recent high-value transfers in JSON. 1. transactions: array of whale transfers sorted by value descending 2. from: sender wallet address 3. to: receiver wallet address 4. valueEth: transaction value in ETH 5. valueUsd: estimated USD value at time of transfer 6. txHash: transaction hash for on-chain verification 7. blockNumber: block number of the transaction 8. timestamp: when the transaction occurred Example output: {"transactions":[{"from":"0xab...","to":"0xcd...","valueEth":500.0,"valueUsd":1552500,"txHash":"0xef...","blockNumber":19845632,"timestamp":"2026-04-13T11:22:00Z"}],"chain":"ethereum","minValue":100,"totalFound":8} Use this FOR detecting market-moving whale activity and smart money flows. Essential for trading signal generation and on-chain intelligence. Do NOT use for wallet balance -- use wallet_get_portfolio instead. Do NOT use for token prices -- use finance_get_token_price instead. Do NOT use for holder distribution -- use token_get_holder_analysis instead.

Endpoints

URL	Transport	State	Latency	Checked
https://whale-alert.api.klymax402.com/mcp	sse	answering	10 ms	15 min ago

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Whale Alert API — questions

Answers built from our own checks of this server.

What can Whale Alert API do?

It exposes 1 tools, read directly from the server on our last check. Among them: crypto_track_whale_transactions. 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 Whale Alert API 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 10 ms. The bar chart above shows every period we have measured.

The registry lists Whale Alert API 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 Whale Alert API?

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 Whale Alert API need an API key?

No. Whale Alert API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

Is Whale Alert API open source?

The code is open source: it is published under the MIT licence, written in TypeScript, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at whale-alert.api.klymax402.com, which runs on its operator's own terms.