# x420 Token - Spark Endpoint

> x420 Token - Spark Endpoint is a paid API for AI agents from www.x420.dev, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Triggers the x420 Spark action, returning a calm message in exchange for a $1 USDC micropayment

## Facts

- Endpoint: GET https://www.x420.dev/api/spark
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x420-token-spark-endpoint-e7d529ef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9GBAJ1NxXj0RTOg6tzH9P

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 x420-token-spark-endpoint-e7d529ef
```

Example prompt: Trigger the x420 Spark endpoint and get back a calm message — pay the 1 USDC fee to invoke it.

## When to prefer this

Use this endpoint when you specifically want to invoke the x420 Spark action and are willing to pay $1 USDC per call via the x402 micropayment protocol. Suitable for agents exploring x402-enabled token services or needing the specific calm message output from x420.

## Known failure modes

- Payment not received or insufficient USDC balance — 402 Payment Required
- Service unavailable or server error — 500 Internal Server Error
- Invalid request format — 400 Bad Request
- Rate limiting or request throttling — 429 Too Many Requests

## How this service works

Spark x420

## Output

Returns a JSON object with a single 'message' string field containing a calm response from the x420 Spark service.

## Example request

```json
{}
```

## Response schema (JSON Schema)

```json
{
 "message": "string"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x420-token-spark-endpoint-e7d529ef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.x420.dev](https://www.zero.xyz/host/www.x420.dev/llms.txt)