Feegate Yield MCP

Free DeFi yield data for AI agents: APY and TVL for 60+ chains and 10,000+ pools via DefiLlama. Zero dependencies, MIT licensed, works with Claude Desktop and Cursor.

GitHub

Documentation

feegate-yield-mcp

Free, open-source MCP server for DeFi yield data. Search APY / TVL across 60+ chains and 10,000+ pools — no API key, no account, no dependencies.

Data: DefiLlama public yields API · License: MIT · Node.js ≥ 18

🚀 Brought to you by Feegate — the x402 data marketplace where AI agents buy data per call in USDC on Base. Free tools, paid data, no API keys: feegate.org

Why

AI agents (Claude, Cursor, ChatGPT, custom agents) increasingly need live DeFi yield data — "which pools pay the best APY on Base?", "show me stablecoin farms above $50M TVL". This MCP server gives any MCP-compatible client that ability in one config line, for free.

It also demonstrates the Feegate thesis: data should be something an agent can discover, price and call — not something a human has to subscribe to.

Tools

Tool	What it does	Cost
`list_chains`	All chains with yield pools, ranked by TVL	Free
`get_pools`	Top pools by TVL, filter by `chain` / `min_tvl` / `stablecoin_only`; returns total/base/reward APY, 30d mean, IL risk	Free
`get_project_yields`	All pools of one protocol (e.g. `aave-v3`), across chains	Free

Results are cached 5 minutes server-side. Each pool includes apy_base vs apy_reward split so agents can avoid unsustainable incentive APYs.

Install (Claude Code / CLI)

claude mcp add feegate-yield -- node /path/to/feegate-yield-mcp/index.js

Cursor / Claude Desktop (`mcpServers` JSON)

{
  "mcpServers": {
    "feegate-yield": {
      "command": "node",
      "args": ["/path/to/feegate-yield-mcp/index.js"]
    }
  }
}

No npm install needed — plain Node.js, zero dependencies.

Example questions your agent can now answer

"What are the top 10 yield pools on Base by TVL, and which ones are stablecoin?"
"Compare Aave v3 APY across chains"
"Find stablecoin pools above $50M TVL with the highest base APY (not incentives)"

About Feegate

Feegate turns your data into a product AI agents pay for themselves:

x402 v2 payment protocol — HTTP 402 Payment Required + USDC on Base mainnet (EIP-3009, gas sponsored)
No accounts, no API keys, no subscriptions — one HTTP round trip per micropayment
Listed in the official MCP Registry as io.github.BrianTian818/feegate-yield-mcp (registry.modelcontextprotocol.io); the paid marketplace it complements runs at feegate.org/mcp
20 free self-serve tools (endpoint health check, pricing calculator, GEO generator, launch checklist): feegate.org

This MCP server is free forever. If your agent needs data beyond DeFi yields — market data, research, rankings, monitoring — that's what Feegate sells, per call, in USDC.