Base DeFi Yield Optimizer API

io.github.Br0ski777Published by GitHub account Br0ski777v1.1.0Updated Oct 24, 2026

Base chain DeFi yields — Aerodrome, Moonwell, APY, TVL, risk scores. x402.

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Overview

AI-generated overview

Remote MCP endpoint that returns Base chain DeFi yield opportunities from Aerodrome and Moonwell, ranked by APY with TVL and risk scores, paid per call.

What you can do
  • Retrieve Base chain yield opportunities, optionally filtered by protocol (all, aerodrome or moonwell)
  • Read each farm's protocol, pool and token pair, APY, TVL in USD, risk score and yield type
  • Call the same data through a GET or POST variant of the single opportunities tool
When to use it
Useful when an assistant needs current Base-native lending, LP or staking yields to compare pools before deploying capital. It is a narrow, single-purpose feed, not a general DeFi or swap-quote service.
Requirements
A remote MCP client pointed at the hosted endpoint; no API key or signup. Each call is paid per use in USDC on Base L2 through the x402 protocol, so an x402-capable client with a funded wallet is needed to complete the payment challenge.
Before you install
Every request costs money ($0.008 per call per the README) and requires signing an x402 payment with a wallet, so spending limits matter. Payment goes through third-party facilitators (Coinbase CDP, PayAI). Yield, TVL and risk figures are third-party data and should not be treated as investment advice.

Installation

In SourceWeft

  1. Open Base DeFi Yield Optimizer API in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via SSE. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Br0ski777%2Fbase-defi/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "base-defi-yield-optimizer-api": {
      "type": "sse",
      "url": "https://base-defi.api.klymax402.com/mcp"
    }
  }
}

README

Base DeFi Yield Optimizer API

[MCP Server] [x402] [License: MIT]

Base chain DeFi yields -- Aerodrome LP, Moonwell lending, top farms ranked by APY with TVL and risk. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

json
{  "mcpServers": {    "base-defi": {      "url": "https://base-defi.api.klymax402.com/mcp"    }  }}

Quickstart -- HTTP (x402)

bash
curl "https://base-defi.api.klymax402.com/api/opportunities"# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
base_get_defi_opportunitiesGET/api/opportunities$0.008Get DeFi yield opportunities on Base chain
base_get_defi_opportunitiesPOST/api/opportunities$0.008Get DeFi yield opportunities on Base chain (POST variant)

base_get_defi_opportunities

Use this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON.

Parameters

NameTypeRequiredDescription
protocolstringnoFilter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'.

Returns

  • opportunities -- array of yield farms ranked by APY
  • protocol -- protocol name (Aerodrome, Moonwell)
  • pool -- pool name and token pair
  • apy -- current annual percentage yield
  • tvl -- total value locked in USD
  • riskScore -- risk rating (1-10, lower is safer)
  • type -- yield type (LP, lending, staking)

Example response:

json
{"opportunities":[{"protocol":"Aerodrome","pool":"USDC/WETH","apy":18.5,"tvl":45000000,"riskScore":3,"type":"LP"},{"protocol":"Moonwell","pool":"USDC Lending","apy":5.2,"tvl":120000000,"riskScore":1,"type":"lending"}],"chain":"base","totalPools":12}

When to use: deploying capital on Base chain specifically. Curated list of vetted Base-native protocols only.

Not for: swap quotes on Base (use dex_get_swap_quote), liquidation risk (use defi_get_liquidation_levels).

base_get_defi_opportunities

Use this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON. POST variant of base_get_defi_opportunities -- same params passed as JSON body instead of query string.

Parameters

NameTypeRequiredDescription
protocolstringnoFilter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'.

Returns

  • opportunities -- array of yield farms ranked by APY
  • protocol -- protocol name (Aerodrome, Moonwell)
  • pool -- pool name and token pair
  • apy -- current annual percentage yield
  • tvl -- total value locked in USD
  • riskScore -- risk rating (1-10, lower is safer)
  • type -- yield type (LP, lending, staking)

Example response:

json
{"opportunities":[{"protocol":"Aerodrome","pool":"USDC/WETH","apy":18.5,"tvl":45000000,"riskScore":3,"type":"LP"},{"protocol":"Moonwell","pool":"USDC Lending","apy":5.2,"tvl":120000000,"riskScore":1,"type":"lending"}],"chain":"base","totalPools":12}

When to use: deploying capital on Base chain specifically. Curated list of vetted Base-native protocols only.

Not for: swap quotes on Base (use dex_get_swap_quote), liquidation risk (use defi_get_liquidation_levels).

Example agent prompts

  • "DeFi yield opportunities specifically on Base chain"
  • "DeFi yield opportunities specifically on Base chain"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Source: README.md at commit 423a5bd

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.1.0LatestSep 16, 2026

Score

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  • Reached in the last 30 daysRequired25 pts

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  • Auth declaredRequired10 pts

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  • Tools listed15 pts

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  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts