Claude.ai UnFee — 1-Credit Base/ETH/XRPL RPC, x402 Trace & Wash Filter, 0% Crypto Checkout & Tax Engine get_live_arb_opportunities
How to: Claude.ai UnFee — 1-Credit Base/ETH/XRPL RPC, x402 Trace & Wash Filter, 0% Crypto Checkout & Tax Engine get_live_arb_opportunities
Add UnFee — 1-Credit Base/ETH/XRPL RPC, x402 Trace & Wash Filter, 0% Crypto Checkout & Tax Engine to Claude.ai
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Open Settings → Connectors → Add custom connector and merge this in. Keep any servers already there.
https://unfee.xyz/mcp-
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Save the file and restart Claude.ai.
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Ask for something get_live_arb_opportunities does. Claude.ai lists the server's tools on connect and calls get_live_arb_opportunities itself — you do not invoke it by name.
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If nothing happens, check the server is running and that UnFee — 1-Credit Base/ETH/XRPL RPC, x402 Trace & Wash Filter, 0% Crypto Checkout & Tax Engine's identifier in your config matches the one above exactly.
Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs
Same tool, other clients
This list was read from the server itself, by connecting to it and calling tools/list on 26 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.