# DataDon Hello Endpoint

> DataDon Hello Endpoint is a paid API for AI agents from www.datadon.xyz, paid per call via x402, $1/call, status down (last checked 2026-09-15).

Returns a greeting response when called, serving as a demonstration endpoint for the x402 micropayment protocol

## Facts

- Endpoint: GET https://www.datadon.xyz/datadon/hello
- Price: $1/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/datadon-hello-endpoint-19cec2f9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0R82tmsAMiWX47mozCTdn

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 datadon-hello-endpoint-19cec2f9
```

Example prompt: Say hi to DataDon and get a greeting back — I want to try out the DataDon x402 hello endpoint for the first time.

## When to prefer this

Use this endpoint when you want to test or demonstrate x402 micropayment protocol integration, verify that a $1 USDC payment flow works end-to-end, or simply explore the DataDon platform for the first time. Not suitable for any data-retrieval, token-earning, or production use case.

## Known failure modes

- Payment not included or insufficient USDC (HTTP 402 Payment Required)
- Network timeout reaching datadon.xyz
- Invalid or expired payment header (402 or 400 error)
- Server unavailable (503)

## How this service works

Send a hi to DataDon, and DataDon will say hi back! This won’t give you any tokens; it’s just the first time DataDon entering the world of x402. 向 DataDon 打个招呼，DataDon 会回你一句 hi！这不会给你任何代币；这只是 第一次将DataDon 领入 x402 的世界。

## Output

A simple greeting text response ('hi') returned from the DataDon server, confirming the endpoint was reached and the x402 payment was processed successfully. No tokens or rewards are granted.

## Example request

```json
{}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/datadon-hello-endpoint-19cec2f9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.datadon.xyz](https://www.zero.xyz/host/www.datadon.xyz/llms.txt)