# Base DeFi Opportunities API

> Base DeFi Opportunities API is a paid API for AI agents from klymax402.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).

Fetches current DeFi yield opportunities on Base chain, including APY and TVL data from protocols like Aerodrome and Moonwell

## Facts

- Endpoint: GET https://klymax402.com/api/base-defi/api/opportunities
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-defi-opportunities-api-b2f31a02
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FwFDEwBc5lKv7PMFMZsGj

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability base-defi-opportunities-api-b2f31a02
```

Example prompt: What are the current DeFi yield opportunities on Base right now — show me all protocols including Aerodrome and Moonwell with their APY and TVL?

## When to prefer this

Use this endpoint when you need real-time DeFi yield opportunity data specifically on Base chain, particularly from Aerodrome or Moonwell. Prefer this over generic DeFi aggregators when you want a simple per-call lookup without API key management, paid per-call with USDC on Base.

## Known failure modes

- Invalid protocol filter value returns error
- No opportunities available for a given protocol returns empty opportunities array
- Service unavailability returns HTTP error
- Payment failure via x402 prevents access

## How this service works

One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.

## Output

Returns a JSON object with the chain name, list of DeFi opportunities, average APY across results, total TVL, number of results, protocol name, and a timestamp. The opportunities array contains individual yield positions with protocol-specific data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "protocol": {
       "enum": [
        "all",
        "aerodrome",
        "moonwell"
       ],
       "type": "string",
       "description": "Filter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "example",
  "avgApy": 1,
  "results": 1,
  "protocol": "example",
  "totalTvl": "example",
  "timestamp": "example",
  "opportunities": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-defi-opportunities-api-b2f31a02/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from klymax402.com](https://www.zero.xyz/host/klymax402.com/llms.txt)