Saylor Innovations Data Desk
Ocean wave height forecast - current wave height, period, direction, swell and sea state with a 5-day forecast for any ocean coordinate
DataLiveeip155:8453Exactvia cdp
Wave heightSwellSurfMarine forecastSea state
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 6 snapshots so far.
$15.76
Verified settled volume
1,657 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-18 21:14Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aaThe 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.
{
"error": "Payment required to access this resource.",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:datadesk:marine-waves",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:datadesk:marine-waves",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazptYXJpbmUtd2F2ZXMiLCJyZWZlcmVuY2UiOiJHZERxZjNtTUppMkY1aTM2S1U1SzhnOXA0YlVHdTNacnBOTlN2WmZxYjNUQyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMTU4NDc1NTM2fQ.2oi0BYWmJbcfJa555sVKhXMj1eZpkMRrKdkTqFoxkpk",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "GdDqf3mMJi2F5i36KU5K8g9p4bUGu3ZrpNNSvZfqb3TC"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/marine/waves?lat=40&lon=-70",
"tags": [
"wave height",
"swell",
"surf",
"marine forecast",
"sea state"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Ocean wave height forecast - current wave height, period, direction, swell and sea state with a 5-day forecast for any ocean coordinate",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"wave height",
"swell",
"surf",
"marine forecast",
"sea state"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lat": "40",
"lon": "-70"
}
},
"output": {
"type": "json",
"example": {
"swell": {
"height_m": 2.04,
"period_s": 7,
"direction_deg": 188
},
"source": "Open-Meteo marine (ECMWF WAM / DWD)",
"forecast": [
{
"date": "2026-10-12",
"wave_height_max_m": 3.34,
"wave_period_max_s": 8.25,
"swell_height_max_m": 2.9
},
{
"date": "2026-10-13",
"wave_height_max_m": 1.76,
"wave_period_max_s": 7.3,
"swell_height_max_m": 1.52
},
{
"date": "2026-10-14",
"wave_height_max_m": 1.78,
"wave_period_max_s": 5.8,
"swell_height_max_m": 1.12
},
{
"date": "2026-10-15",
"wave_height_max_m": 1.62,
"wave_period_max_s": 6.55,
"swell_height_max_m": 1.18
},
{
"date": "2026-10-16",
"wave_height_max_m": 3.46,
"wave_period_max_s": 6.85,
"swell_height_max_m": 1.56
}
],
"location": {
"lat": 40,
"lon": -70,
"grid_lat": 40.041664,
"grid_lon": -70.04166,
"timezone": "Etc/GMT+5"
},
"sea_state": "rough",
"observed_at": "2026-10-12T16:00",
"wave_height_m": 2.54,
"wave_period_s": 7.15,
"wave_direction_deg": 201,
"wind_wave_height_m": 1.46
}
}
},
"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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "string",
"description": "Latitude in decimal degrees, e.g. 40.71"
},
"lon": {
"type": "string",
"description": "Longitude in decimal degrees, e.g. -74.01"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"wave_height_m",
"sea_state"
],
"properties": {
"swell": {
"type": "object"
},
"source": {
"type": [
"string",
"null"
],
"description": "Data source the values come from"
},
"forecast": {
"type": "array",
"items": {
"type": "object"
},
"description": "Forecast values"
},
"location": {
"description": "Place the data refers to"
},
"sea_state": {
"type": "string",
"description": "Sea state"
},
"checked_at": {
"type": [
"string",
"null"
],
"description": "Time the check was run (UTC)"
},
"observed_at": {
"type": [
"string",
"null"
],
"description": "Time of the observation (UTC)"
},
"wave_height_m": {
"type": "number",
"description": "Wave height, in metres"
},
"wave_period_s": {
"type": [
"number",
"null"
],
"description": "Wave period s"
},
"wave_direction_deg": {
"type": [
"number",
"null"
],
"description": "Wave direction, in degrees"
},
"wind_wave_height_m": {
"type": [
"number",
"null"
],
"description": "Wind wave height m"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"swell": {
"height_m": 2.04,
"period_s": 7,
"direction_deg": 188
},
"source": "Open-Meteo marine (ECMWF WAM / DWD)",
"forecast": [
{
"date": "2026-10-12",
"wave_height_max_m": 3.34,
"wave_period_max_s": 8.25,
"swell_height_max_m": 2.9
},
{
"date": "2026-10-13",
"wave_height_max_m": 1.76,
"wave_period_max_s": 7.3,
"swell_height_max_m": 1.52
},
{
"date": "2026-10-14",
"wave_height_max_m": 1.78,
"wave_period_max_s": 5.8,
"swell_height_max_m": 1.12
},
{
"date": "2026-10-15",
"wave_height_max_m": 1.62,
"wave_period_max_s": 6.55,
"swell_height_max_m": 1.18
},
{
"date": "2026-10-16",
"wave_height_max_m": 3.46,
"wave_period_max_s": 6.85,
"swell_height_max_m": 1.56
}
],
"location": {
"lat": 40,
"lon": -70,
"grid_lat": 40.041664,
"grid_lon": -70.04166,
"timezone": "Etc/GMT+5"
},
"sea_state": "rough",
"observed_at": "2026-10-12T16:00",
"wave_height_m": 2.54,
"wave_period_s": 7.15,
"wave_direction_deg": 201,
"wind_wave_height_m": 1.46
},
"license": "LicenseRef-Saylor-Agent-Use-1.0",
"mimeType": "application/json",
"freshness": "fetched live (cached up to 1 hour for large reference files)",
"tokenCount": null,
"inputSchema": {
"lat": "Latitude in decimal degrees, e.g. 40.71",
"lon": "Longitude in decimal degrees, e.g. -74.01"
},
"serviceName": "Saylor Innovations Data Desk",
"instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
"outputSchema": {
"type": "object",
"required": [
"wave_height_m",
"sea_state"
],
"properties": {
"swell": {
"type": "object"
},
"forecast": {
"type": "array",
"items": {
"type": "object"
}
},
"sea_state": {
"type": "string"
},
"wave_height_m": {
"type": "number"
},
"wave_period_s": {
"type": [
"number",
"null"
]
}
}
},
"noPathTemplate": true,
"settlementModes": [
"facilitator-transaction",
"self-submitted-reference"
],
"typicalLatencyMs": 700
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.
- Paid to
- 0xA2A8…fc8aa
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
10000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · 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
- 7LSjfr…Xacy7
- Token contract
- EPjFWd…TDt1v
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:datadesk:marine-waves",
"name": "USD Coin",
"note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:datadesk:marine-waves",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazptYXJpbmUtd2F2ZXMiLCJyZWZlcmVuY2UiOiJ1WWlKdjFQeHdySnNDUEFkU3g1bjRxUGZ3SHpjVkoyUTJ1NFQ4WXo0SEN2IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzNTgyMTM3OTV9.p1Lz2xaZ7Fd2WM0OKR6bynSlyaUfMXv5bpAWao9YB9o",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"reference": "uYiJv1PxwrJsCPAdSx5n4qPfwHzcVJ2Q2u4T8Yz4HCv"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lat": "40",
"lon": "-70"
}
},
"output": {
"type": "json",
"example": {
"swell": {
"height_m": 2.04,
"period_s": 7,
"direction_deg": 188
},
"source": "Open-Meteo marine (ECMWF WAM / DWD)",
"forecast": [
{
"date": "2026-10-12",
"wave_height_max_m": 3.34,
"wave_period_max_s": 8.25,
"swell_height_max_m": 2.9
},
{
"date": "2026-10-13",
"wave_height_max_m": 1.76,
"wave_period_max_s": 7.3,
"swell_height_max_m": 1.52
},
{
"date": "2026-10-14",
"wave_height_max_m": 1.78,
"wave_period_max_s": 5.8,
"swell_height_max_m": 1.12
},
{
"date": "2026-10-15",
"wave_height_max_m": 1.62,
"wave_period_max_s": 6.55,
"swell_height_max_m": 1.18
},
{
"date": "2026-10-16",
"wave_height_max_m": 3.46,
"wave_period_max_s": 6.85,
"swell_height_max_m": 1.56
}
],
"location": {
"lat": 40,
"lon": -70,
"grid_lat": 40.041664,
"grid_lon": -70.04166,
"timezone": "Etc/GMT+5"
},
"sea_state": "rough",
"observed_at": "2026-10-12T16:00",
"wave_height_m": 2.54,
"wave_period_s": 7.15,
"wave_direction_deg": 201,
"wind_wave_height_m": 1.46
}
}
},
"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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"lat",
"lon"
],
"properties": {
"lat": {
"type": "string",
"description": "Latitude in decimal degrees, e.g. 40.71"
},
"lon": {
"type": "string",
"description": "Longitude in decimal degrees, e.g. -74.01"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"wave_height_m",
"sea_state"
],
"properties": {
"swell": {
"type": "object"
},
"source": {
"type": [
"string",
"null"
],
"description": "Data source the values come from"
},
"forecast": {
"type": "array",
"items": {
"type": "object"
},
"description": "Forecast values"
},
"location": {
"description": "Place the data refers to"
},
"sea_state": {
"type": "string",
"description": "Sea state"
},
"checked_at": {
"type": [
"string",
"null"
],
"description": "Time the check was run (UTC)"
},
"observed_at": {
"type": [
"string",
"null"
],
"description": "Time of the observation (UTC)"
},
"wave_height_m": {
"type": "number",
"description": "Wave height, in metres"
},
"wave_period_s": {
"type": [
"number",
"null"
],
"description": "Wave period s"
},
"wave_direction_deg": {
"type": [
"number",
"null"
],
"description": "Wave direction, in degrees"
},
"wind_wave_height_m": {
"type": [
"number",
"null"
],
"description": "Wind wave height m"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-18 21:14Z
- Last indexed by Roundhouse
- 2026-10-19 13:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-16 13:45Z
- x402 version
- 2
- Max timeout
- 120s
- 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. 6 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 Saylor Innovations Data Desk 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=Saylor%20Innovations%20Data%20Desk' 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://saylorinnovations.com/api/marine/waves, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.