Summary
Pulls real-time DeFi metrics from Base chain protocols into Claude's context. You get APY rates, TVL figures, and risk scores for Aerodrome and Moonwell without leaving your conversation. The server connects to a remote API at base-defi.api.klymax402.com via SSE transport, so it's querying live data rather than relying on stale snapshots. Reach for this when you're analyzing yield opportunities on Base, comparing protocol safety, or building agents that need to make decisions based on current DeFi conditions. The x402 designation appears to be part of the developer's broader crypto tooling ecosystem.
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Tools
Public tool metadata for what this MCP can expose to an agent.
1 tools
base_get_defi_opportunitiesUse this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON. 1. opportunities: array of yield farms ranked by APY 2. protocol: protocol nam1 params
Use this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON. 1. opportunities: array of yield farms ranked by APY 2. protocol: protocol nam
Parameters* required
protocolstringFilter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'.one of
all · aerodrome · moonwellBase DeFi Yield Optimizer API
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.):
{
"mcpServers": {
"base-defi": {
"url": "https://base-defi.api.klymax402.com/mcp"
}
}
}
Quickstart -- HTTP (x402)
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
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
base_get_defi_opportunities | GET | /api/opportunities | $0.003 | Get DeFi yield opportunities on Base chain |
base_get_defi_opportunities
Use this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
protocol | string | no | Filter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'. |
Returns
opportunities-- array of yield farms ranked by APYprotocol-- protocol name (Aerodrome, Moonwell)pool-- pool name and token pairapy-- current annual percentage yieldtvl-- total value locked in USDriskScore-- risk rating (1-10, lower is safer)type-- yield type (LP, lending, staking)
Example response:
{"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"
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.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
Featured
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Give your AI agent a complete email layer—sending, inbound inboxes, and sandbox testing.
Get 4K emails/month free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
