Saylor Innovations Data Desk
One-way ANOVA across 2 to 10 groups - F statistic, degrees of freedom, p-value, eta and omega squared, effect size, group means and a plain-language verdict
DataUnknowneip155:8453Exactvia facilitator:payAI
Anova test for three groupsCompare means of several groupsOne way anova p valueIs there a significantF statistic and eta squared
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 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.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
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.
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≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.
- Paid to
- 0xA2A8…fc8aa
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:datadesk:anova-one-way",
"name": "USD Coin",
"version": "2",
"facilitatorOnly": true,
"assetTransferMethod": "eip3009"
},
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"groups": "4,5,6|7,8,9|1,2,3"
}
},
"output": {
"type": "json",
"example": {
"alpha": 0.05,
"groups": 3,
"source": "One-way ANOVA with the F distribution via the regularized incomplete beta function",
"p_value": 0.001,
"df_within": 6,
"df_between": 2,
"grand_mean": 5,
"effect_size": "large",
"eta_squared": 0.9,
"f_statistic": 27,
"group_stats": [
{
"n": 3,
"sd": 1,
"mean": 5,
"group": 1
},
{
"n": 3,
"sd": 1,
"mean": 8,
"group": 2
},
{
"n": 3,
"sd": 1,
"mean": 2,
"group": 3
}
],
"significant": true,
"observations": 9,
"omega_squared": 0.852459,
"interpretation": "at least one group mean differs from the others; run a post-hoc test (Tukey HSD) to see which",
"mean_square_within": 1,
"sum_squares_within": 6,
"mean_square_between": 27,
"sum_squares_between": 54
}
}
},
"schema": {
"type": "object",
"$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",
"required": [
"groups"
],
"properties": {
"groups": {
"type": "string",
"description": "Groups separated by |, each a comma-separated list, e.g. 4,5,6|7,8,9|1,2,3"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"f_statistic",
"p_value"
],
"properties": {
"alpha": {
"type": [
"number",
"null"
],
"description": "Significance level used"
},
"groups": {
"type": "number",
"description": "Number of groups compared"
},
"source": {
"type": "string",
"description": "Data source the values come from"
},
"p_value": {
"type": "number",
"description": "P value"
},
"df_within": {
"type": "number",
"description": "Df within"
},
"df_between": {
"type": "number",
"description": "Df between"
},
"grand_mean": {
"type": "number",
"description": "Grand mean"
},
"effect_size": {
"type": "string",
"description": "Effect size"
},
"eta_squared": {
"type": "number",
"description": "Eta squared"
},
"f_statistic": {
"type": [
"number",
"null"
],
"description": "F statistic"
},
"group_stats": {
"type": "array",
"items": {
"type": "object",
"properties": {
"n": {
"type": [
"number",
"null"
],
"description": "Group size"
},
"sd": {
"type": [
"number",
"null"
],
"description": "Group standard deviation"
},
"mean": {
"type": [
"number",
"null"
],
"description": "Group mean"
},
"group": {
"type": [
"number",
"null"
],
"description": "Group number"
}
}
},
"description": "Group stats"
},
"significant": {
"type": "boolean",
"description": "True when the p-value is below alpha"
},
"observations": {
"type": "number",
"description": "Observations in time order"
},
"omega_squared": {
"type": "number",
"description": "Omega squared"
},
"interpretation": {
"type": "string",
"description": "Plain-language reading of the result"
},
"mean_square_within": {
"type": [
"number",
"null"
],
"description": "Mean square within"
},
"sum_squares_within": {
"type": [
"number",
"null"
],
"description": "Sum squares within"
},
"mean_square_between": {
"type": [
"number",
"null"
],
"description": "Mean square between"
},
"sum_squares_between": {
"type": [
"number",
"null"
],
"description": "Sum squares between"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-26 02:44Z
- Last indexed by Roundhouse
- 2026-10-26 12:46Z
- Last enriched (probe, favicon, geo)
- —
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- Not probed
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. 9 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/stats/anova, 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.