How do I install Afterfees?

Afterfees is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Afterfees safe to use?

Yes. Afterfees passed MCP Marketplace's automated security scan with a score of 9.9/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Afterfees?

Afterfees uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Afterfees MCP Server

by Linyejia

Developer ToolsLow Risk9.9MCP RegistryRemote

Free

Server data from the Official MCP Registry

Crypto funding-rate arbitrage across 50 exchanges, net of fees and order-book slippage. Read-only.

About

Crypto funding-rate arbitrage across 50 exchanges, net of fees and order-book slippage. Read-only.

Remote endpoints: streamable-http: https://afterfees.xyz/mcp

Security Report

9.9

Low Risk9.9Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.

Endpoint verified · Open access · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "io-github-linyejia-afterfees": {
      "url": "https://afterfees.xyz/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

AfterFees MCP server

Crypto funding-rate arbitrage for AI assistants, with every number net of fees and order-book slippage.

AfterFees prices ~75,000 long/short pairs across 50 exchanges (CEX, perp DEXs, Hyperliquid HIP-3) and tells you what a trade would actually earn at your size: funding minus taker fees on all four fills, slippage walked on the live order books, borrow interest, stablecoin conversion and holding period. Most screeners show the gross rate spread; once costs and real order-book depth are counted, often only a handful of the tens of thousands of pairs can be opened at $10,000 per side. This server gives your assistant the same numbers as afterfees.xyz.

Hosted, nothing to install. Streamable HTTP at https://afterfees.xyz/mcp.
Read-only. 27 tools; none can place an order or move funds.
No token needed to try it. The anonymous tier answers with exactly what an anonymous visitor of the site sees ($10,000 per side, held 7 days), 60 requests per minute per IP address.
Neutral. No exchange referral links or listing fees; rankings are not influenced by any exchange.

Connect

Claude (desktop or claude.ai): Settings → Connectors → Add custom connector → URL https://afterfees.xyz/mcp

Claude Code:

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

Cursor (~/.cursor/mcp.json):

{ "mcpServers": { "afterfees": { "url": "https://afterfees.xyz/mcp" } } }

VS Code (.vscode/mcp.json):

{ "servers": { "afterfees": { "type": "http", "url": "https://afterfees.xyz/mcp" } } }

With a Pro token (your own size and holding period, every tool, Pro limits), add the header Authorization: Bearer <your token> — for example claude mcp add --transport http afterfees https://afterfees.xyz/mcp --header "Authorization: Bearer arb_...". Tokens are created on afterfees.xyz/developers.

Try asking

"Which funding-rate arbitrage trades are actually profitable right now after fees and slippage?"
"Compare BTC funding on every exchange and tell me the best long/short pair at $50k."
"Break down the costs of the top pair: fees, slippage on each leg, breakeven time."
"How did AfterFees' daily picks do last week — predicted vs realised?"
"What does it cost to enter $100k on Hyperliquid vs Binance?"
"Can I lock a fixed funding rate on Pendle Boros for ETH, and what does it net?"

Tools

Tool	What it returns
`best_opportunities`	Ranked long/short pairs with the net after fees and slippage at the stated size, tier and reasons
`coin_overview`	One coin's funding on every exchange plus its best pairs
`pair_breakdown`	Every number of one pair: funding per leg, fees, order-book VWAP and slippage, breakeven (Pro token)
`funding_rates`	Current perpetual funding rates (gross) by coin or exchange
`borrow_rates`	Margin borrow rates, limits and inventory (for spot-short legs)
`fixed_vs_floating`	Pendle Boros: fixed funding you can lock, net of fees, vs the floating benchmark
`execution_cost`	Taker fee + order-book slippage for a USD size of one coin on every exchange
`basis_trades`	Spot or perp against a dated future held to delivery
`transfer_routes`	Buy on one exchange, withdraw on a shared network, sell on another
`pair_history`	Funding actually settled on both legs over 7–365 days at your size
`term_structure`	Annualised basis of every delivery future of one coin
`venue_execution_cost`	$10k / $100k / $1M entry cost on one exchange
`service_status`	Whether data is live, which feeds are down, availability
`order_checklist`	The two orders to place by hand for one pair, in each exchange's own units
`holding_scenarios`	One pair's net held 8 h to 30 days
`manual_calculator`	Net, APR and breakeven for legs you describe
`boros_lock_calculator`	Locked net on Boros at an implied APR you give
`transfer_calculator`	Cross-exchange transfer net at prices you give
`boros_market`	One Boros market in detail
`boros_futures_basis`	Boros implied APR vs futures basis of the same maturity
`exchanges`	Every exchange covered: fully calculated or watch-only, fees, status
`exchange_overview`	One exchange: fees and sources, intervals, OI, extremes
`coins`	Coins listed on two or more exchanges
`track_record`	The daily top picks: predicted net vs net realised from settled funding
`dex_scan`	CEX ↔ DEX price gaps on verified contracts (Pro token)
`spread_chart`	Price spread candles between two instruments
`my_positions`	Your hedged positions across connected read-only keys (Pro token)

Every net figure says how its slippage was counted (net_basis): exact = walked on the live order books, reference = top of book only, before_slippage = no book. The method behind every number is published at afterfees.xyz/methodology.

About

AfterFees is built by Origin Trade Labs. Estimates from current data, not investment advice; we never hold funds or trade for you. Questions and feedback: the Feedback button on afterfees.xyz.

This repository holds the server's listing (this README and server.json for the MCP Registry); the server itself is hosted.

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Afterfees MCP Server

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AfterFees MCP server

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