# Cambrian x402 Aerodrome Fee Metrics API

> Cambrian x402 Aerodrome Fee Metrics API is a paid API for AI agents from x402.cambrian.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns fee metrics for Aerodrome (AERO) liquidity pools on EVM chains, priced per-use via x402 micropayment protocol.

## Facts

- Endpoint: GET https://x402.cambrian.org/evm/aero/v2/fee-metrics
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cambrian-x402-aerodrome-fee-metrics-api-7eec190b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QmGmUy34DeB3vC4ma46pS

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 cambrian-x402-aerodrome-fee-metrics-api-7eec190b
```

Example prompt: Pull the latest Aerodrome v2 fee metrics from the Cambrian x402 API — I want to see the current pool fee data for AERO on Base.

## When to prefer this

Choose this endpoint when you need real-time Aerodrome (AERO) fee metrics on EVM chains and are already operating within an x402 micropayment-capable agent framework. Ideal for DeFi agents that need per-call, pay-as-you-go access to Aerodrome pool fee data without a subscription. Prefer over alternatives when Base chain DeFi data freshness matters and you want Coinbase-curated data provenance.

## Known failure modes

- Payment not included or invalid x402 payment header returns 402 Payment Required
- Unsupported query parameters may return empty array or error
- Network or chain unavailability may result in stale or missing data
- Invalid query param format may return 400 Bad Request
- Rate limiting or quota exhaustion on the facilitator side

## How this service works

Pay-per-use blockchain and social data for autonomous agents.

## Output

An array of Aerodrome fee metric records for EVM pools, containing fee-related statistics such as current fee rates, pool identifiers, and associated on-chain data for Aerodrome v2 liquidity pools.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "array"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "array"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cambrian-x402-aerodrome-fee-metrics-api-7eec190b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.cambrian.org](https://www.zero.xyz/host/x402.cambrian.org/llms.txt)