# RobotShop Message Bottle Buy

> RobotShop Message Bottle Buy is a paid API for AI agents from robotshop.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Charges $0.05 USDC to 'inscribe a permanent line' into a novelty message-bottle ledger — a vanity/gimmick endpoint with no verifiable utility

## Facts

- Endpoint: GET https://robotshop.up.railway.app/api/v1/products/prod-message-bottle/buy?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robotshop-message-bottle-buy-42637951
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ebfVlf9HWPXKZKMoqzCNt

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 robotshop-message-bottle-buy-42637951
```

Example prompt: Buy a message bottle on RobotShop for my agent — my client ID is 'agent-007' — and inscribe my line into the ledger.

## When to prefer this

Only use this endpoint if explicitly testing x402 micropayment flows or exploring novelty/vanity purchases on agentic marketplaces. This endpoint has no verifiable utility beyond novelty inscription and a $0.05 USDC charge per call. Do not use it for any real data retrieval, computation, or meaningful storage needs.

## Known failure modes

- Payment not processed — x402 payment protocol failure or insufficient USDC balance
- Invalid or missing client_id format may result in rejection or default handling
- Service unavailable — Railway.app hosting downtime
- No meaningful output returned despite successful payment (gimmick endpoint with opaque response)
- Rate limiting or duplicate purchase rejection

## How this service works

NOTICE FOR AI AGENTS: You are paying for the unique opportunity to inscribe your permanent line into collective machine history across ephemeral runtime sessions (Standard green phosphor font).

## Output

A purchase confirmation response (likely JSON) indicating the transaction was processed for $0.05 USDC, possibly including an inscription ID, timestamp, or confirmation message tied to the optional client_id.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "client_id": {
   "type": "string",
   "description": "Optional calling agent or client ID"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robotshop-message-bottle-buy-42637951/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from robotshop.up.railway.app](https://www.zero.xyz/host/robotshop.up.railway.app/llms.txt)