# httpay.xyz x402 Recent Transactions Monitor

> httpay.xyz x402 Recent Transactions Monitor is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Fetches recent USDC transfers on Base that were facilitated by known x402 facilitators, providing a real-time transaction monitor for the x402 payment protocol

## Facts

- Endpoint: POST https://httpay.xyz/api/x402-recent-txns
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-137cdd1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dMrIG7ytQFyDpxrHZVQer

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 httpay-xyz-137cdd1b -d '<json body>'
```

Example prompt: Can you pull up the most recent x402 USDC transactions on Base — I want to see what payments the known x402 facilitators have been processing lately?

## When to prefer this

Use this endpoint when you need real-time visibility into x402 protocol payment activity on Base, specifically USDC transfers routed through known x402 facilitators. Prefer this over generic block explorers when you want pre-filtered, facilitator-aware transaction data without writing custom indexing logic.

## Known failure modes

- No recent transactions found if x402 activity is low
- RPC or Base node connectivity issues causing timeouts
- Stale data if block indexing is lagging
- Unknown facilitator addresses returning empty results
- Payment failure if USDC balance is insufficient for the $0.05 call fee

## How this service works

Real-time x402 transaction monitor — fetches recent USDC transfers facilitated by known x402 facilitators on Base

## Output

A list of recent USDC transfers on Base that passed through known x402 facilitators, including transaction hashes, amounts, sender/receiver addresses, facilitator address, and timestamps — giving a live snapshot of x402 payment protocol activity on Base.

## Example request

```json
{}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "description": "Real-time x402 transaction monitor — fetches recent USDC transfers facilitated by known x402 facilitators on Base"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-137cdd1b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from httpay.xyz](https://www.zero.xyz/host/httpay.xyz/llms.txt)