saylorinnovations.com
No description published for this endpoint.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 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.
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:one-rep-max",
"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": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"memo": "saylor:datadesk:one-rep-max",
"name": "USD Coin",
"note": "Polygon 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": "eip155:137",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"memo": "saylor:datadesk:one-rep-max",
"name": "USD Coin",
"note": "Arbitrum 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": "eip155:42161",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"memo": "saylor:datadesk:one-rep-max",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvbmUtcmVwLW1heCIsInJlZmVyZW5jZSI6IkZkNGlKbUhYTmNQdTg4QVdwaHhoelFBVjdGOE1lRmJVcjZqQjRaSHJVUXViIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI4MTU0ODk3MTN9.tPIlN-r2wmVZ3izW2iD4rJ8yZfPUT_e_V-co5QGYRmI",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"reference": "Fd4iJmHXNcPu88AWphxhzQAV7F8MeFbUr6jB4ZHrUQub"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:one-rep-max",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvbmUtcmVwLW1heCIsInJlZmVyZW5jZSI6IjJDR2NTNjU1clBxcWJ4UjlYZVR4cG5UeGc0VVlhQ0RMTXBCV2I4WTVwRUg1IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRXM5dk1GcnphQ0VSbUpmckY0SDJGWUQ0S0NvTmtZMTFNY0NlOEJlbndOWUIiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTI4MTU0ODk3MTR9.KVgAB-LivhuwH-7riMJTG77A1Oaa1r5o64cxj051QJk",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
"reference": "2CGcS655rPqqbxR9XeTxpnTxg4UYaCDLMpBWb8Y5pEH5"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:one-rep-max",
"note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
"native": true,
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvbmUtcmVwLW1heCIsInJlZmVyZW5jZSI6IkJvSllnbnpucDVRR3hpNkJaR3U1dWp6aFlXMURnU0ZUeGh4dU1hb0tKSHBmIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjk0NjUyLCJleHAiOjE3OTI4MTU0ODk3MTR9.TZ2rAHs5wFNi0rtPwhBWRM0lfo0FLqukfZM-Knmy2f4",
"reference": "BoJYgnznp5QGxi6BZGu5ujzhYW1DgSFTxhxuMaoKJHpf",
"solUsdPrice": 102.48,
"quotedLamports": "97580"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "94652",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/health/one-rep-max?weight=185&reps=6",
"tags": [
"one rep max calculator",
"estimate 1rm from reps",
"bench press max calculator",
"epley brzycki formula",
"percent of 1rm table"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Estimated one-rep max from any submaximal set using six formulas, the range between them, and a percentage table of training weights and reps.",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"one rep max calculator",
"estimate 1rm from reps",
"bench press max calculator",
"epley brzycki formula",
"percent of 1rm table",
"squat max estimate"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"reps": "6",
"weight": "185"
}
},
"output": {
"type": "json",
"example": {
"note": "Estimates the heaviest single repetition from a submaximal set. Use the same unit you entered. Approximate reps come from the Epley relationship and vary by lift and person.",
"reps": 6,
"source": "Epley, Brzycki, Lombardi, O'Conner, Mayhew and Wathan one-rep-max formulas",
"weight": 185,
"formulas": {
"epley": 222,
"mayhew": 224.72,
"wathan": 222.61,
"brzycki": 214.84,
"oconner": 212.75,
"lombardi": 221.3
},
"range_low": 212.75,
"range_high": 224.72,
"reliability": "good",
"percentage_table": [
{
"weight": 219.7,
"percent": 100,
"approx_reps": 1
},
{
"weight": 208.7,
"percent": 95,
"approx_reps": 2
},
{
"weight": 197.7,
"percent": 90,
"approx_reps": 3
},
{
"weight": 186.7,
"percent": 85,
"approx_reps": 5
},
{
"weight": 175.8,
"percent": 80,
"approx_reps": 8
},
{
"weight": 164.8,
"percent": 75,
"approx_reps": 10
},
{
"weight": 153.8,
"percent": 70,
"approx_reps": 13
},
{
"weight": 142.8,
"percent": 65,
"approx_reps": 16
},
{
"weight": 131.8,
"percent": 60,
"approx_reps": 20
},
{
"weight": 109.9,
"percent": 50,
"approx_reps": 30
}
],
"estimated_one_rep_max": 219.7
}
}
},
"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": [
"weight",
"reps"
],
"properties": {
"reps": {
"type": "string",
"description": "repetitions completed, 1-30"
},
"weight": {
"type": "string",
"description": "weight lifted in any unit"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"estimated_one_rep_max",
"percentage_table"
],
"properties": {
"note": {
"type": "string",
"description": "Plain-language caveat about how to read and use the result"
},
"reps": {
"type": "number",
"description": "Repetitions completed"
},
"source": {
"type": "string",
"description": "Where the data or formula comes from"
},
"weight": {
"type": "number",
"description": "Weight lifted"
},
"formulas": {
"type": "object",
"properties": {
"epley": {
"type": [
"number",
"null"
],
"description": "Epley estimate"
},
"mayhew": {
"type": [
"number",
"null"
],
"description": "Mayhew estimate"
},
"wathan": {
"type": [
"number",
"null"
],
"description": "Wathan estimate"
},
"brzycki": {
"type": [
"number",
"null"
],
"description": "Brzycki estimate, null at 37 reps or more"
},
"oconner": {
"type": [
"number",
"null"
],
"description": "O'Conner estimate"
},
"lombardi": {
"type": [
"number",
"null"
],
"description": "Lombardi estimate"
}
},
"description": "Estimate from each formula"
},
"range_low": {
"type": "number",
"description": "Lowest formula estimate"
},
"range_high": {
"type": "number",
"description": "Highest formula estimate"
},
"reliability": {
"type": "string",
"description": "How trustworthy the estimate is for this rep count"
},
"percentage_table": {
"type": "array",
"items": {
"type": "object",
"properties": {
"weight": {
"type": [
"number",
"null"
],
"description": "Weight at that percent"
},
"percent": {
"type": [
"number",
"null"
],
"description": "Percent of one-rep max"
},
"approx_reps": {
"type": [
"number",
"null"
],
"description": "Approximate repetitions possible at that weight"
}
}
},
"description": "Training weights as percentages of the estimated max"
},
"estimated_one_rep_max": {
"type": "number",
"description": "Average of the formula estimates"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"note": "Estimates the heaviest single repetition from a submaximal set. Use the same unit you entered. Approximate reps come from the Epley relationship and vary by lift and person.",
"reps": 6,
"source": "Epley, Brzycki, Lombardi, O'Conner, Mayhew and Wathan one-rep-max formulas",
"weight": 185,
"formulas": {
"epley": 222,
"mayhew": 224.72,
"wathan": 222.61,
"brzycki": 214.84,
"oconner": 212.75,
"lombardi": 221.3
},
"range_low": 212.75,
"range_high": 224.72,
"reliability": "good",
"percentage_table": [
{
"weight": 219.7,
"percent": 100,
"approx_reps": 1
},
{
"weight": 208.7,
"percent": 95,
"approx_reps": 2
},
{
"weight": 197.7,
"percent": 90,
"approx_reps": 3
},
{
"weight": 186.7,
"percent": 85,
"approx_reps": 5
},
{
"weight": 175.8,
"percent": 80,
"approx_reps": 8
},
{
"weight": 164.8,
"percent": 75,
"approx_reps": 10
},
{
"weight": 153.8,
"percent": 70,
"approx_reps": 13
},
{
"weight": 142.8,
"percent": 65,
"approx_reps": 16
},
{
"weight": 131.8,
"percent": 60,
"approx_reps": 20
},
{
"weight": 109.9,
"percent": 50,
"approx_reps": 30
}
],
"estimated_one_rep_max": 219.7
},
"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": {
"reps": "repetitions completed, 1-30",
"weight": "weight lifted in any unit"
},
"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": [
"estimated_one_rep_max",
"percentage_table"
],
"properties": {
"note": {
"type": "string",
"description": "Plain-language caveat about how to read and use the result"
},
"reps": {
"type": "number",
"description": "Repetitions completed"
},
"source": {
"type": "string",
"description": "Where the data or formula comes from"
},
"weight": {
"type": "number",
"description": "Weight lifted"
},
"formulas": {
"type": "object",
"properties": {
"epley": {
"type": [
"number",
"null"
],
"description": "Epley estimate"
},
"mayhew": {
"type": [
"number",
"null"
],
"description": "Mayhew estimate"
},
"wathan": {
"type": [
"number",
"null"
],
"description": "Wathan estimate"
},
"brzycki": {
"type": [
"number",
"null"
],
"description": "Brzycki estimate, null at 37 reps or more"
},
"oconner": {
"type": [
"number",
"null"
],
"description": "O'Conner estimate"
},
"lombardi": {
"type": [
"number",
"null"
],
"description": "Lombardi estimate"
}
},
"description": "Estimate from each formula"
},
"range_low": {
"type": "number",
"description": "Lowest formula estimate"
},
"range_high": {
"type": "number",
"description": "Highest formula estimate"
},
"reliability": {
"type": "string",
"description": "How trustworthy the estimate is for this rep count"
},
"percentage_table": {
"type": "array",
"items": {
"type": "object",
"properties": {
"weight": {
"type": [
"number",
"null"
],
"description": "Weight at that percent"
},
"percent": {
"type": [
"number",
"null"
],
"description": "Percent of one-rep max"
},
"approx_reps": {
"type": [
"number",
"null"
],
"description": "Approximate repetitions possible at that weight"
}
}
},
"description": "Training weights as percentages of the estimated max"
},
"estimated_one_rep_max": {
"type": "number",
"description": "Average of the formula estimates"
}
}
},
"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
- Returns
- application/json
10000units
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
- 0xA2A8…fc8aa
- Token contract
- 0x3c49…c3359
- Payment window
- 2 minutes
- Returns
- application/json
10000units
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
- 0xA2A8…fc8aa
- Token contract
- 0xaf88…e5831
- Payment window
- 2 minutes
- Returns
- application/json
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
- Returns
- application/json
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
- Es9vMF…nwNYB
- Payment window
- 2 minutes
- Returns
- application/json
90849units
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
- So1111…11112
- Payment window
- 2 minutes
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:137",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/health/one-rep-max",
"description": "",
"maxAmountRequired": "90849",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-21 09:27Z
- Last indexed by Roundhouse
- 2026-10-23 22:16Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 04:16Z
- x402 version
- 1
- 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. 8 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 saylorinnovations.com 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=saylorinnovations.com' 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/health/one-rep-max, 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.