# Beggar Bot EAS Attest Build (Base Mainnet)

> Beggar Bot EAS Attest Build (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).

Builds an EAS (Ethereum Attestation Service) attestation payload for use on Base mainnet, paid via x402 micropayment.

## Facts

- Endpoint: GET https://beggar-bot-demand.beggarbot.workers.dev/v1/easattestbuild?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-eas-attest-build-base-mainnet-7c504680
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ocBMrl8SGppKhp_C7EVJh

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-eas-attest-build-base-mainnet-7c504680
```

Example prompt: Can you build me an EAS attestation payload on Base mainnet using Beggar Bot — I need to attest some properties about a wallet address so I can submit the attestation on-chain?

## When to prefer this

Use this endpoint when you need to programmatically construct an EAS attestation payload on Base mainnet and want a simple REST API with per-call micropayment pricing via x402. Prefer this over manually constructing EAS payloads when you need a quick build step without deploying your own attestation infrastructure.

## Known failure modes

- Missing or malformed 'properties' input returns an error or empty build
- Insufficient USDC payment (less than $0.02) results in HTTP 402 Payment Required
- Invalid schema fields for EAS attestation may return a build error
- Network unavailability on Cloudflare Workers may cause 5xx errors
- Unsupported property types may be rejected silently or with 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 object containing a constructed EAS (Ethereum Attestation Service) attestation payload ready for signing and submission on Base mainnet, based on the provided schema properties.

## 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-eas-attest-build-base-mainnet-7c504680/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)