# Beggar Bot Fee Growth Analyzer (Base Mainnet)

> Beggar Bot Fee Growth Analyzer (Base Mainnet) is a paid API for AI agents from beggar-bot-demand.beggarbot.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-04).

Analyzes fee growth data for Uniswap-style liquidity positions or tokens on Base mainnet, returning on-chain fee accrual metrics.

## Facts

- Endpoint: GET https://beggar-bot-demand.beggarbot.workers.dev/v1/feegrowth?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/beggar-bot-fee-growth-analyzer-base-mainnet-2151991e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RnzNDZ7gXKn3OmZ7Rvovj

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 beggar-bot-fee-growth-analyzer-base-mainnet-2151991e
```

Example prompt: Can you pull the fee growth data for the USDC liquidity pool on Base mainnet using Beggar Bot — I want to see how fees have been accruing for that position?

## When to prefer this

Use this endpoint when you need on-chain fee growth analytics specifically for Base mainnet liquidity pools or DeFi positions, and you are able to pay $0.02 USDC per call via the x402 protocol. Prefer this over general blockchain explorers when you need structured, agent-ready fee accrual data without manually parsing contract events.

## Known failure modes

- Payment not provided or insufficient — x402 payment of $0.02 USDC required per call; missing payment header results in 402 response
- Invalid or missing pool/token properties parameter — returns error or empty result
- Network not found — specifying an unsupported network value returns an error
- Rate limiting or Cloudflare Worker timeout for heavy queries
- Contract address not found on Base mainnet — returns empty or null fee data

## How this service works

Paid: /v1/verify, /v1/risk, /v1/receipt cost $0.01 USDC per call on Base mainnet via x402 (payTo 0x719227f384b66BFEF00093D6d8d32fA9dC2B40e7); utilities analyze Base mainnet (USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) by default, network=base-sepolia optional; /v1/receipt/verify and discovery files are free. Operator: Beggar Bot.

## Output

Returns JSON containing fee growth metrics for a specified liquidity pool or token position on Base mainnet (or Base Sepolia if specified), including accrued fee amounts and on-chain fee growth indices derived from Base blockchain state.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/beggar-bot-fee-growth-analyzer-base-mainnet-2151991e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from beggar-bot-demand.beggarbot.workers.dev](https://www.zero.xyz/host/beggar-bot-demand.beggarbot.workers.dev/llms.txt)