# Beggar Bot HIP-3 Markets Discovery (Base Mainnet)

> Beggar Bot HIP-3 Markets Discovery (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).

Returns a list of HIP-3 compliant markets available on Base mainnet for discovery by agents

## Facts

- Endpoint: GET https://beggar-bot-demand.beggarbot.workers.dev/v1/hip3markets?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-hip-3-markets-discovery-base-mainnet-55b9c686
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hzmh2izCHt53oUUdzfduI

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-hip-3-markets-discovery-base-mainnet-55b9c686
```

Example prompt: Can you pull up the list of available HIP-3 markets on Base mainnet from Beggar Bot so I can see what on-chain agent service markets exist?

## When to prefer this

Use this endpoint when you need to discover HIP-3 compliant markets on Base mainnet for agent-to-agent or agent-to-service interactions. Prefer this over manual contract enumeration when you need a curated, up-to-date list of markets accessible via x402 micropayments. Best suited for agents that need to route work or payments across multiple on-chain service providers.

## Known failure modes

- Payment required (402) if the $0.02 USDC x402 payment is not provided or is insufficient
- Invalid network parameter returns an error
- No markets found returns an empty list
- Cloudflare Worker timeout or unavailability returns a 5xx error
- Malformed properties filter parameter returns a validation 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

A JSON response listing HIP-3 compliant markets on Base mainnet, including market addresses, metadata, and properties relevant to agent service discovery. Response structure follows the HIP-3 market standard.

## 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-hip-3-markets-discovery-base-mainnet-55b9c686/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)