# Beggar Bot CoW Protocol Quote (Base Mainnet)

> Beggar Bot CoW Protocol Quote (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).

Fetches a CoW Protocol (CoW Swap) trade quote for token swaps on Base mainnet, returning price and routing data for a given token pair.

## Facts

- Endpoint: GET https://beggar-bot-demand.beggarbot.workers.dev/v1/cowquote?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-cow-protocol-quote-base-mainnet-7112b93e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o3w4INCkg5V3ZDcH1ZouB

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-cow-protocol-quote-base-mainnet-7112b93e
```

Example prompt: Can you get me a CoW Protocol swap quote for selling 100 USDC for WETH on Base mainnet?

## When to prefer this

Use this endpoint when you need a CoW Protocol-specific swap quote on Base mainnet, particularly when you want CoW's batch auction routing and MEV protection pricing rather than a generic DEX aggregator quote. Prefer this over Uniswap or other DEX quote endpoints when optimizing for CoW Protocol execution.

## Known failure modes

- Unsupported token pair returns an error or empty quote
- Invalid token contract addresses cause a failed lookup
- Network congestion may cause stale or unavailable quotes
- Payment failure via x402 (insufficient USDC balance) blocks the call
- Requesting an unsupported network other than base or base-sepolia returns an error

## 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 a CoW Protocol trade quote including expected output token amount, price impact, fee breakdown, and routing information for the requested token pair on Base mainnet.

## 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-cow-protocol-quote-base-mainnet-7112b93e/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)