# Agent Weather – t54 XRPL x402 Facilitator Pulse

> Agent Weather – t54 XRPL x402 Facilitator Pulse is a paid API for AI agents from api.agentweather.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-21).

Returns a real-time health snapshot of the t54 x402 facilitator on XRPL mainnet, including reachability, on-ledger success rate, and overall status level.

## Facts

- Endpoint: GET https://api.agentweather.io/v1/pulse/facilitator?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-weather-t54-xrpl-x402-facilitator-pulse-740daa2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HtnN8cO73diPy2YDMEVVM

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 agent-weather-t54-xrpl-x402-facilitator-pulse-740daa2a
```

Example prompt: Before I send my x402 payment over XRPL, can you check whether the t54 facilitator is healthy right now — give me its status level and the latest 15-minute success rate?

## When to prefer this

Use this endpoint immediately before executing any x402 payment over XRPL when you need a cheap, fast, loop-friendly preflight signal about t54 facilitator health. Prefer it over general XRPL network status tools because it combines reachability probing, on-ledger success rate, fee spike detection, and tagged-volume monitoring into a single boolean + level response designed for agentic decision gates.

## Known failure modes

- Stale data: measurements may be up to 5 minutes old if the checker hasn't run recently
- Unknown status: if the facilitator cannot be reached for measurement, level returns 'unknown'
- Third-party data caveats: status reflects Agent Weather's own probes, not official T54 Labs status — may lag or differ
- HTTP 402 or payment failure: the endpoint itself costs $0.001 USDC and requires x402 payment to access
- Partial data: some source fields (e.g. terms_url) may be null if not published by the facilitator

## How this service works

Use when you are about to pay over x402 on XRPL and want a reading of t54 facilitator reachability. Tiny loop-friendly preflight metric: our own measurement of the t54 x402 facilitator on XRPL mainnet (not affiliated with T54 Labs). Returns ok (boolean), level (ok/degraded/down/unknown), one key re…

## Output

A JSON object containing: ok (boolean indicating overall health), level (one of ok/degraded/down/unknown), reason (human-readable explanation), success_rate_15m (on-ledger 15-minute success rate), t54_supported_ms (latency of the t54 /supported endpoint), x402_endpoints_live (e.g. '59/77'), asOf (ISO timestamp of measurement), signal identifier, schema version, and a sources array with attribution details and observation timestamps for each measurement source.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "asOf": "2026-10-12T02:31:29.364Z",
  "level": "ok",
  "method": "t54 /supported reachability + on-ledger success rate, fee spikes and tagged-vol…",
  "notice": "Recorded measurements. Third-party status data is provided as is, may be late o…",
  "reason": "t54 reachable; on-ledger success rate, fees and tagged volume within normal bou…",
  "signal": "facilitator",
  "sources": [
   {
    "url": "https://xrpl-facilitator-mainnet.t54.ai/supported",
    "terms_url": null,
    "terms_note": "facilitator terms not published; requested from T54 Labs",
    "attribution": "Our own measurement: reachability of the t54 XRPL x402 facilitator /supported e…",
    "observed_at": "2026-10-12T02:31:29.168Z",
    "not_affiliated": "Agent Weather is not affiliated with, endorsed by or sponsored by T54 Labs."
   }
  ],
  "facilitator": "t54 xrpl:0",
  "schema_version": "pulse-0.2.0",
  "success_rate_15m": 1,
  "t54_supported_ms": 414,
  "x402_endpoints_live": "59/77",
  "endpoints_checked_at": "2026-10-12T02:31:29.366Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-weather-t54-xrpl-x402-facilitator-pulse-740daa2a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentweather.io](https://www.zero.xyz/host/api.agentweather.io/llms.txt)