Track large whale transactions on Ethereum and Base blockchains in real-time. Built for developers monitoring on-chain activity and detecting significant fund movements via micropayment integration.
io.github.Br0ski777/whale-alert
https://whale-alert-x402-production.up.railway.app/mcp
SSE
No auth required
How models use it and what it is built for.
Track large whale transactions on Ethereum and Base blockchains in real-time. Built for developers monitoring on-chain activity and detecting significant fund movements via micropayment integration.
Hosted endpoint — paste into any MCP client.
Where to find authoritative docs and source for Whale Alert API.
Paste any of these into Agent Studio after connecting Whale Alert API.
Common questions about connecting and running Whale Alert API.
What blockchains does this whale-alert server support?
The server tracks large transactions on Ethereum and Base. It uses x402 micropayment protocol for access, meaning you may incur small costs per query depending on your usage tier.
How do I set up authentication for whale-alert?
The server uses x402 micropayment authentication. Connect via the SSE endpoint at https://whale-alert-x402-production.up.railway.app/mcp and ensure your client supports micropayment headers for transaction queries.
What is the difference between whale-alert and other transaction trackers?
Whale-alert specifically filters and surfaces large on-chain transactions (whale movements) rather than all transactions, making it ideal for monitoring significant fund flows and market-moving activity.
Is there a cost to use this MCP server?
Yes, whale-alert uses x402 micropayment protocol, so queries incur small per-request fees. Check the service documentation for current pricing and rate limits.
Can I get real-time alerts for whale transactions?
The server supports querying recent whale transactions, but real-time alerting depends on your client implementation and polling frequency. Refer to the hosted endpoint documentation for subscription or streaming options.
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