# SimFuse United States 500 MB 1-Day Travel eSIM

> SimFuse United States 500 MB 1-Day Travel eSIM is a paid API for AI agents from simfuse.app, paid per call via x402, $1.59/call, status unknown (last checked 2026-09-15).

Purchases a prepaid US travel eSIM with 500 MB of data valid for 1 day, paid in USDC on Base via x402, and returns instant eSIM activation details

## Facts

- Endpoint: POST https://simfuse.app/x402/purchase/01kvmtdbybqar2qewyaf9wzf1k
- Price: $1.59/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/simfuse-united-states-500-mb-1-day-travel-esim-26e3e0e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2e5T29tA2lbbwuTqtASD3

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 simfuse-united-states-500-mb-1-day-travel-esim-26e3e0e2 -d '<json body>'
```

Example prompt: Buy me a US travel eSIM with 500 MB of data — I need mobile internet in the United States today, just 1 eSIM, and send the install details to john@example.com.

## When to prefer this

Use this endpoint when a traveller needs instant, no-account mobile data in the United States and wants to pay with USDC on Base via x402 with no API key or registration required. Ideal for AI agents automating travel logistics or for users who want crypto-native connectivity. Choose this over traditional eSIM stores when frictionless programmatic purchase is needed, and choose the US-specific plan (vs Europe or other regional siblings) when the destination is specifically the United States.

## Known failure modes

- Insufficient USDC balance — payment via x402 fails if the wallet lacks enough USDC on Base
- Invalid quantity — values outside 1–20 are rejected
- Malformed email — poorly formatted email string may be rejected or silently ignored
- Network or provisioning delay — eSIM not immediately visible at order_status_url in rare cases
- Device incompatibility — eSIM activation may fail if the traveller's device does not support eSIM or is locked

## How this service works

United States 500 MB: a prepaid travel eSIM with 500 MB of data for 1 day. Buy it when a traveller needs mobile data abroad without a local SIM card or roaming fees. Pay in USDC on Base with x402, no account or API key needed. The installable eSIM (QR code, LPA activation code, one-tap iPhone and Android links) is ready within seconds from order_status_url. Optional JSON body: quantity (1 to 20) and email.

## Output

Returns an order_status_url where the eSIM installation materials (QR code, LPA activation code, one-tap iPhone and Android install links) are available within seconds. If an email was provided, the same activation details are also sent to that address. One eSIM per unit purchased, up to 20 per call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "description": "Optional. The traveller's email address, where the eSIM install details are also sent. Omit it to collect the eSIM only from order_status_url."
  },
  "quantity": {
   "type": "integer",
   "default": 1,
   "maximum": 20,
   "minimum": 1,
   "description": "How many eSIMs of this plan to buy, 1 to 20. Defaults to 1. The price in the 402 challenge is for this quantity."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/simfuse-united-states-500-mb-1-day-travel-esim-26e3e0e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from simfuse.app](https://www.zero.xyz/host/simfuse.app/llms.txt)