# Beggar Bot CoW Cancel Endpoint (Base Mainnet)

> Beggar Bot CoW Cancel Endpoint (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 2026-11-10).

Retrieves information or performs a CoW (CoW Protocol / CowSwap) order cancellation lookup on Base mainnet via a paid x402 micropayment endpoint.

## Facts

- Endpoint: GET https://beggar-bot-demand.beggarbot.workers.dev/v1/cowcancel?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/beggar-bot-cow-cancel-endpoint-base-mainnet-172e05eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9YeOa3p1EZSza2FJCauDo

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-cancel-endpoint-base-mainnet-172e05eb
```

Example prompt: Can you check the cancellation status of my CoW Protocol order on Base mainnet? I want to confirm my pending swap was successfully cancelled.

## When to prefer this

Use this endpoint when you need to verify or retrieve details about a CoW Protocol order cancellation specifically on Base mainnet. Prefer this over general blockchain explorers when you need structured JSON output about CoW order status and are already using the Beggar Bot x402 micropayment infrastructure.

## Known failure modes

- Payment not provided or insufficient USDC balance — returns 402 Payment Required
- Invalid or missing order ID — returns error or empty result
- Order not found on Base mainnet — returns not found error
- Network mismatch if wrong chain specified — returns error
- Rate limiting or Cloudflare Worker timeout — returns 5xx 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 JSON data about a CoW Protocol order cancellation on Base mainnet, including cancellation status, order details, and relevant transaction information. Costs $0.02 USDC per call paid via x402 micropayment 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-cancel-endpoint-base-mainnet-172e05eb/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)