Skip to content
mcp/harbor
Verified official

UnFee — 1-Credit Base/ETH/XRPL RPC, x402 Trace & Wash Filter, 0% Crypto Checkout & Tax Engine MCP

v1.5.0 changelog · 1

xyz.unfee/mcp

Flat 1-credit Base/ETH/XRPL RPC (eth_getLogs=1 credit), x402 wash filter, 0% checkout & tax CSV.

transport:streamable-http tools:12
Website

Target client

run in your project directory 

claude mcp add --transport http mcp https://unfee.xyz/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

create_payment_link Mutating

create payment link

get_instant_free_rpc_key Read-only

get instant free rpc key

compare_payment_fees

compare payment fees

get_live_arb_opportunities Read-only

get live arb opportunities

verify_transaction

verify transaction

unfee_check_seller_reputation

unfee check seller reputation

unfee_pay_with_delivery_proof

unfee pay with delivery proof

unfee_generate_tax_report

unfee generate tax report

base_rpc_request

base rpc request

eth_getLogs_flat_rate

eth get logs flat rate

xrpl_rpc_request

xrpl rpc request

ethereum_rpc_request

ethereum rpc request

All 12 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.