# Vextorium DeFi Protocol Fees

> Vextorium DeFi Protocol Fees is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-19).

Returns fee revenue data (24h, 7d, 30d) for DeFi protocols, optionally filtered by blockchain, sourced from DefiLlama

## Facts

- Endpoint: POST https://api.vextorium.com/v1/defi-fees?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-defi-protocol-fees-2ef2a1a8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ryoro1s-jRKnYqP_LakRI

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 vextorium-defi-protocol-fees-2ef2a1a8 -d '<json body>'
```

Example prompt: Show me the top 20 DeFi protocols by fees on Ethereum — I want 24h, 7d, and 30d fee revenue so I can spot which ones have real, consistent income.

## When to prefer this

Choose this endpoint when you need ranked, multi-timeframe fee revenue data across DeFi protocols — especially when comparing protocol sustainability or identifying top earners by chain. It is better than raw on-chain queries because it aggregates data across protocols via DefiLlama and provides pre-computed 24h/7d/30d breakdowns with trend percentages.

## Known failure modes

- Invalid chain name returns empty or unfiltered results
- Limit outside 1-50 range rejected with validation error
- DefiLlama upstream outage causes stale or missing data
- Requesting more protocols than available for a niche chain returns fewer results than requested

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

Returns a list of DeFi protocols with their category, protocol name, fees earned in the last 24 hours, 7 days, and 30 days (all in USD), and 7-day percentage change in fees. Also includes the chain filter applied and a note explaining the data source (DefiLlama).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "Filter by chain, e.g. Ethereum, Base, Solana, Arbitrum (optional)"
  },
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1,
   "description": "Number of protocols (1-50, default 15)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Fees = what users pay the protocol. High and stable = real business. Source: DefiLlama.",
  "chain": "todas",
  "protocols": [
   {
    "category": "Stablecoin Issuer",
    "protocol": "Tether",
    "fees_7d_usd": 122438724,
    "fees_24h_usd": 17646129,
    "fees_30d_usd": 503767801,
    "change_7d_pct": 2.16
   },
   {
    "category": "Stablecoin Issuer",
    "protocol": "Circle USDC",
    "fees_7d_usd": 50654947,
    "fees_24h_usd": 7229424,
    "fees_30d_usd": 206134684,
    "change_7d_pct": 0.8
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-defi-protocol-fees-2ef2a1a8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)