Space Weather Intelligence
x402 Atlas provides real-time x402 analytics for autonomous APIs on Base. Track transactions, discover trends, and analyze the x402 ecosystem.
TradingLiveeip155:8453Exactvia cdp
Space-weather-forecastKp-index-forecastSpace-weatherGeomagneticNoaa-swpc
Calls · 30d
4↑ 3.7%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$24.55
Verified settled volume
1,041 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-09-15 06:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"hint": "This endpoint requires x402 payment. The price and payment options are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
"llms": "https://space-weather.use.x402atlas.com/llms.txt",
"error": "payment_required",
"price": "$0.005 per call",
"method": "GET",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
],
"contact": {
"email": "support@x402atlas.com"
},
"openapi": "https://space-weather.use.x402atlas.com/openapi.json",
"resource": {
"url": "https://space-weather.use.x402atlas.com/forecast",
"tags": [
"space-weather-forecast",
"kp-index-forecast",
"space-weather",
"geomagnetic",
"noaa-swpc"
],
"mimeType": "application/json",
"description": "Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.",
"serviceName": "Space Weather Intelligence"
},
"x402Version": 2,
"documentation": "https://space-weather.use.x402atlas.com/docs"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x8C12…Df1b2. The signed payment is good for 5 minutes.
- Paid to
- 0x8C12…Df1b2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
5000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
5000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"days": 3
}
},
"output": {
"type": "json",
"example": {
"query": {
"days": 3
},
"stale": false,
"source": {
"name": "NOAA Space Weather Prediction Center",
"products": [
"noaa_planetary_k_index_forecast"
],
"retrieved_at": "2026-08-04T15:47:00Z"
},
"periods": [
{
"kp": 5,
"kind": "predicted",
"valid_at": "2026-08-04T18:00:00Z",
"noaa_scale": "G1"
},
{
"kp": 4.67,
"kind": "predicted",
"valid_at": "2026-08-04T21:00:00Z",
"noaa_scale": null
},
{
"kp": 3,
"kind": "estimated",
"valid_at": "2026-08-05T00:00:00Z",
"noaa_scale": null
}
],
"warnings": [
"NOAA SWPC does not publish an issuance timestamp for this product; issued_at is null and retrieved_at is not an issuance time.",
"Missing forecast periods are not filled."
],
"issued_at": null,
"operation": "kp-forecast",
"schema_version": "noaa-swpc-normalized-v1",
"source_age_seconds": 0
}
}
},
"tags": [
"space-weather-forecast",
"kp-index-forecast",
"space-weather",
"geomagnetic",
"noaa-swpc"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"days": {
"type": "integer",
"default": 3,
"maximum": 3,
"minimum": 1,
"description": "Number of 24-hour periods from retrieval time"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"operation",
"schema_version",
"query",
"issued_at",
"periods",
"source",
"stale",
"source_age_seconds",
"warnings"
],
"properties": {
"query": {
"type": "object",
"required": [
"days"
],
"properties": {
"days": {
"type": "integer",
"maximum": 3,
"minimum": 1,
"description": "Applied forecast-day window"
}
},
"description": "Normalized query identity after applying the default day window",
"additionalProperties": false
},
"stale": {
"type": "boolean",
"description": "True only when a validated cached snapshot was used"
},
"_atlas": {
"type": "object",
"required": [
"docs"
],
"properties": {
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Documentation URL for this bridge"
},
"related": {
"type": "array",
"items": {
"type": "object",
"required": [
"bridge",
"url",
"docs",
"summary"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related route URL"
},
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related bridge documentation URL"
},
"bridge": {
"type": "string",
"maxLength": 64,
"description": "Related bridge name"
},
"summary": {
"type": "string",
"maxLength": 256,
"description": "Short capability summary"
}
},
"description": "One related Atlas route",
"additionalProperties": false
},
"maxItems": 3,
"description": "Bounded related Atlas routes"
}
},
"description": "Atlas documentation and related-route metadata added after deployment",
"additionalProperties": false
},
"source": {
"type": "object",
"required": [
"name",
"products",
"retrieved_at"
],
"properties": {
"name": {
"type": "string",
"description": "Official source organization"
},
"products": {
"type": "array",
"items": {
"type": "string",
"description": "Product identifier"
},
"description": "Fixed normalized NOAA SWPC products"
},
"retrieved_at": {
"type": "string",
"format": "date-time",
"description": "Time the served normalized snapshot was retrieved"
}
},
"description": "Official NOAA SWPC provenance for the served normalized snapshot",
"additionalProperties": false
},
"periods": {
"type": "array",
"items": {
"type": "object",
"required": [
"valid_at",
"kp",
"noaa_scale",
"kind"
],
"properties": {
"kp": {
"type": "number",
"maximum": 9,
"minimum": 0,
"description": "Forecast planetary K index"
},
"kind": {
"enum": [
"observed",
"estimated",
"predicted"
],
"type": "string",
"description": "Exact normalized source observed classification"
},
"valid_at": {
"type": "string",
"format": "date-time",
"description": "Official period valid time"
},
"noaa_scale": {
"type": [
"string",
"null"
],
"description": "Official NOAA scale value when supplied"
}
},
"additionalProperties": false
},
"description": "Unique periods in ascending valid-time order; missing periods are not filled"
},
"warnings": {
"type": "array",
"items": {
"type": "string",
"description": "Actionable warning"
},
"description": "Freshness, missing-component, provenance, and interpretation limitations"
},
"issued_at": {
"type": [
"string",
"null"
],
"format": "date-time",
"description": "Always null because this source publishes no issuance timestamp"
},
"operation": {
"type": "string",
"const": "kp-forecast",
"description": "Stable route operation"
},
"schema_version": {
"type": "string",
"const": "noaa-swpc-normalized-v1",
"description": "Pinned NOAA SWPC normalization contract"
},
"source_age_seconds": {
"type": "integer",
"minimum": 0,
"description": "Age in whole seconds of the route's controlling freshness timestamp; retrieval time controls alerts and forecast"
}
},
"additionalProperties": false
}
}
}
}
},
"category": "science"
}
}Provenance
- Seen in the source catalog
- 2026-09-15 06:32Z
- Last indexed by Roundhouse
- 2026-09-25 03:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 13:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Space Weather Intelligence and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Space%20Weather%20Intelligence' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://space-weather.use.x402atlas.com/forecast, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.