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Agent Weather x402 XRPL Price Index
x402
Agent Weather x402 XRPL Price Index is a paid API for AI agents from api.agentweather.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-21).
Returns a live price index of x402-payable API endpoints on XRPL mainnet, including cheapest provider per capability category, price distribution, and price drift since the previous cycle.
Price / call$0.005
Success—
StatusUnknown
How this service works
Use when you want to compare what XRPL x402 resources cost per category before buying. Price index of live x402 resources payable on XRPL mainnet: cheapest live provider per capability category, USD-normalised price distribution, every live endpoint with its rails, and price changes since the previ…
Output
A JSON object containing: the current cycle number and timestamp, XRP/USD rate, a list of all live x402 endpoints with their payment rails and USD-normalized prices, per-category summaries (cheapest provider, median price, live endpoint count), a USD price distribution with percentile bands, and price changes since the previous cycle. Also includes methodology references and data gap disclosures.
Example use cases
Pre-purchase price comparison for x402 APIs
“I'm about to use an x402 API on XRPL for LLM inference — can you pull the Agent Weather price index and tell me which provider is cheapest in that category and what the typical price range looks like?”
Budget planning for autonomous agent pipeline
“My agent pipeline calls several x402 services on XRPL mainnet. Pull the latest price index from Agent Weather so I can see the median and p75 costs per category and estimate my monthly spend.”
Tracking x402 price drift over cycles
“Have any x402 API prices on XRPL shifted noticeably since the last Agent Weather cycle? Pull the price index and show me which categories saw the biggest changes.”
Technical details
Endpoint
GEThttps://api.agentweather.io/v1/price-index?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to compare costs across multiple x402-payable API categories on XRPL mainnet before committing to a payment, or when building cost-aware routing logic that selects the cheapest live provider. Prefer this over individual endpoint probes when you need a broad market view rather than a single-endpoint preflight check.
Side effects
- No live endpoints found if the XRPL mainnet has no valid 402 responses in the current cycle
- Stale data if the health checker cycle is delayed
- POST-only or unprobed resources are excluded from the live index
- Price drift data unavailable if this is the first cycle
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"index": {
"as_of": "2026-10-12T02:31:28.000Z",
"cycle": 516,
"scope": "x402 resources payable on XRPL mainnet (xrpl:0) that returned a valid 402 to our unpaid GET in this cycle",
"xrp_usd": 1.40682,
"endpoints": [
{
"url": "https://x402.asksurf.ai/x402/xrpl/tools/ask_surf_chat",
"name": null,
"rails": [
{
"usd": 0.0005,
"asset": "RLUSD",
"units": 0.0005,
"amount": "0.0005",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"usd_method": "USD stablecoin at 1.00"
}
],
"origin": "https://x402.asksurf.ai",
"pay_to": "ra9b6JX5aPVbdJhogDDddsRAcasWg7gzC3",
"category": "inference_llm",
"cheapest_usd": 0.0005,
"cheapest_rail": "RLUSD"
}
],
"categories": [
{
"max_usd": 19.999574,
"category": "market_data",
"cheapest": {
"url": "https://api.printmoneylab.com/api/v1/xrpl/fx-rate",
"usd": 0.001,
"name": null,
"rail": "RLUSD",
"rails": [
{
"usd": 0.001,
"asset": "RLUSD",
"units": 0.001,
"amount": "0.001",
"issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
"usd_method": "USD stablecoin at 1.00"
}
],
"origin": "https://api.printmoneylab.com"
},
"median_usd": 0.01,
"live_endpoints": 17
}
],
"live_endpoints": 52,
"distribution_usd": {
"n": 52,
"max": 19.999574,
"min": 0.0005,
"p25": 0.001407,
"p75": 0.015551,
"bands": [
{
"band_usd": "0",
"endpoints": 0
},
{
"band_usd": "<0.001",
"endpoints": 2
},
{
"band_usd": "0.001-0.002",
"endpoints": 13
},
{
"band_usd": "0.002-0.005",
"endpoints": 1
},
{
"band_usd": "0.005-0.01",
"endpoints": 9
},
{
"band_usd": "0.01-0.02",
"endpoints": 14
},
{
"band_usd": "0.02-0.20",
"endpoints": 8
},
{
"band_usd": ">0.20",
"endpoints": 5
}
],
"median": 0.01
}
},
"sources": [
{
"url": "https://api.agentweather.io/v1/methodology#price-index",
"name": "Agent Weather health checker: unpaid GET 402 responses and merchants' own /.well-known/x402",
"observed_at": "2026-10-12T02:31:28.000Z"
}
],
"data_gaps": [
{
"gap": "POST-only and unprobed resources",
"reason": "only resources returning a valid 402 to a GET are live; catalog-declared prices are counted separately"
}
],
"issued_at": "2026-10-12T02:34:12.091Z",
"report_id": "awp-2026-10-12T0234Z",
"methodology": {
"url": "https://api.agentweather.io/v1/methodology#price-index"
},
"example_data": false,
"schema_version": "price-index-0.1.0-draft"
}
}Tags
x402
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