saylorinnovations.com
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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:validators-near",
"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:validators-near",
"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:validators-near",
"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:validators-near",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0b3JzLW5lYXIiLCJyZWZlcmVuY2UiOiI5Nm5FZnUxbjFTN0RKWEN0OXZBMjRIdzFlaUVBS1FTZ0x6S3c1eXNoSkpnUiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzk5Mjg3MDYyfQ.jOqD7k7BmhaernOqo7mL-KqgO11YxuzHj88JQ1glpoo",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"reference": "96nEfu1n1S7DJXCt9vA24Hw1eiEAKQSgLzKw5yshJJgR"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:validators-near",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0b3JzLW5lYXIiLCJyZWZlcmVuY2UiOiI5ZGc4ZUNMY2tRa1pmRjhES0NwZ1BRTVpDVWNnYkFoRUtwcHIzVTQ3RXpFTSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyNzk5Mjg3MDYyfQ.ytiuWSOI40vxuOsQXU-ekSPf6YgDMu7hkW2ZAv700gU",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"reference": "9dg8eCLckQkZfF8DKCpgPQMZCUcgbAhEKppr3U47EzEM"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:validators-near",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2YWxpZGF0b3JzLW5lYXIiLCJyZWZlcmVuY2UiOiJETDJmY3RvVGJXRWFZRmdDdlp6TjI3cml0WUZjWG9Qb3hvTkg0cm13WlpRQSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50Ijo5NDY2MSwiZXhwIjoxNzkyNzk5Mjg3MDYyfQ.QCsBYYWHQ1cHxi-MrzwYwjeyyjRzPwEgPd6BCH_CK5s",
"reference": "DL2fctoTbWEaYFgCvZzN27ritYFcXoPoxoNH4rmwZZQA",
"solUsdPrice": 102.47,
"quotedLamports": "97589"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "94661",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/validators/near?limit=10",
"tags": [
"near validator set",
"near staking pools stake",
"near validator uptime",
"near stake concentration",
"near top validators"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "NEAR validator set by stake: share, block production uptime, slashing flags, top 10 concentration and the count of validators holding a third.",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"near validator set",
"near staking pools stake",
"near validator uptime",
"near stake concentration",
"near top validators"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": "10"
}
},
"output": {
"type": "json",
"example": {
"note": "Stake is the NEAR staked behind each validator account (most are staking pools) in the current epoch; uptime is blocks produced over blocks expected this epoch. top_33_pct_validator_count is how many…",
"chain": "near",
"source": "NEAR JSON-RPC validators (public endpoint)",
"returned": 10,
"validators": [
{
"rank": 1,
"slashed": false,
"share_pct": 5.58,
"account_id": "astro-stakers.poolv1.near",
"stake_near": 33514117,
"block_uptime_pct": 100,
"blocks_produced_expected": "2175/2175"
},
{
"rank": 2,
"slashed": false,
"share_pct": 4.621,
"account_id": "figment.poolv1.near",
"stake_near": 27754792,
"block_uptime_pct": 100,
"blocks_produced_expected": "1736/1736"
},
{
"rank": 3,
"slashed": false,
"share_pct": 3.841,
"account_id": "ledgerbyfigment.poolv1.near",
"stake_near": 23071145,
"block_uptime_pct": 100,
"blocks_produced_expected": "1407/1407"
}
],
"epoch_height": 4885,
"top_10_share_pct": 35.97,
"total_stake_near": 600507130,
"active_validators": 392,
"slashed_validators": 0,
"top_33_pct_validator_count": 10
}
}
},
"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": {
"limit": {
"type": "string",
"description": "optional validators to return, 1 to 100 (default 25)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"chain",
"active_validators",
"total_stake_near",
"top_10_share_pct",
"validators",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result, including units"
},
"chain": {
"type": "string",
"description": "the chain this describes"
},
"source": {
"type": "string",
"description": "where the data was read from"
},
"returned": {
"type": "number",
"description": "validators in this response"
},
"validators": {
"type": [
"array",
"null"
],
"items": {
"type": "object",
"properties": {
"rank": {
"type": [
"number",
"null"
],
"description": "rank by stake"
},
"slashed": {
"type": [
"boolean",
"null"
],
"description": "true when slashed"
},
"share_pct": {
"type": [
"number",
"null"
],
"description": "share of total stake"
},
"account_id": {
"type": [
"string",
"null"
],
"description": "validator account"
},
"stake_near": {
"type": [
"number",
"null"
],
"description": "stake in NEAR"
},
"block_uptime_pct": {
"type": [
"number",
"null"
],
"description": "produced over expected, percent"
},
"blocks_produced_expected": {
"type": [
"string",
"null"
],
"description": "blocks produced over expected"
}
}
},
"description": "largest validators first"
},
"epoch_height": {
"type": "number",
"description": "current epoch"
},
"top_10_share_pct": {
"type": "number",
"description": "share held by the 10 largest"
},
"total_stake_near": {
"type": "number",
"description": "total stake in NEAR"
},
"active_validators": {
"type": "number",
"description": "validators in the epoch"
},
"slashed_validators": {
"type": "number",
"description": "validators flagged slashed"
},
"top_33_pct_validator_count": {
"type": "number",
"description": "validators needed to hold a third of the stake"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"note": "Stake is the NEAR staked behind each validator account (most are staking pools) in the current epoch; uptime is blocks produced over blocks expected this epoch. top_33_pct_validator_count is how many of the largest validators hold more than a third of the stake. Read from the chain's public node API at request time.",
"chain": "near",
"source": "NEAR JSON-RPC validators (public endpoint)",
"returned": 10,
"validators": [
{
"rank": 1,
"slashed": false,
"share_pct": 5.58,
"account_id": "astro-stakers.poolv1.near",
"stake_near": 33514117,
"block_uptime_pct": 100,
"blocks_produced_expected": "2175/2175"
},
{
"rank": 2,
"slashed": false,
"share_pct": 4.621,
"account_id": "figment.poolv1.near",
"stake_near": 27754792,
"block_uptime_pct": 100,
"blocks_produced_expected": "1736/1736"
},
{
"rank": 3,
"slashed": false,
"share_pct": 3.841,
"account_id": "ledgerbyfigment.poolv1.near",
"stake_near": 23071145,
"block_uptime_pct": 100,
"blocks_produced_expected": "1407/1407"
},
{
"rank": 4,
"slashed": false,
"share_pct": 3.502,
"account_id": "staked.poolv1.near",
"stake_near": 21030073,
"block_uptime_pct": 100,
"blocks_produced_expected": "1364/1364"
},
{
"rank": 5,
"slashed": false,
"share_pct": 3.421,
"account_id": "bitwise_1.poolv1.near",
"stake_near": 20549295,
"block_uptime_pct": 100,
"blocks_produced_expected": "1358/1358"
},
{
"rank": 6,
"slashed": false,
"share_pct": 3.347,
"account_id": "binancenode1.poolv1.near",
"stake_near": 20101274,
"block_uptime_pct": 100,
"blocks_produced_expected": "1382/1382"
},
{
"rank": 7,
"slashed": false,
"share_pct": 3.121,
"account_id": "sumerian.poolv1.near",
"stake_near": 18744773,
"block_uptime_pct": 100,
"blocks_produced_expected": "1177/1177"
},
{
"rank": 8,
"slashed": false,
"share_pct": 2.969,
"account_id": "zavodil.poolv1.near",
"stake_near": 17831803,
"block_uptime_pct": 100,
"blocks_produced_expected": "1190/1190"
},
{
"rank": 9,
"slashed": false,
"share_pct": 2.817,
"account_id": "liver.pool.near",
"stake_near": 16920483,
"block_uptime_pct": 100,
"blocks_produced_expected": "1126/1126"
},
{
"rank": 10,
"slashed": false,
"share_pct": 2.754,
"account_id": "bitwise_2.poolv1.near",
"stake_near": 16539947,
"block_uptime_pct": 100,
"blocks_produced_expected": "1060/1060"
}
],
"epoch_height": 4885,
"top_10_share_pct": 35.97,
"total_stake_near": 600507130,
"active_validators": 392,
"slashed_validators": 0,
"top_33_pct_validator_count": 10
},
"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": {
"limit": "optional validators to return, 1 to 100 (default 25)"
},
"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": [
"chain",
"active_validators",
"total_stake_near",
"top_10_share_pct",
"validators",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result, including units"
},
"chain": {
"type": "string",
"description": "the chain this describes"
},
"source": {
"type": "string",
"description": "where the data was read from"
},
"returned": {
"type": "number",
"description": "validators in this response"
},
"validators": {
"type": [
"array",
"null"
],
"items": {
"type": "object",
"properties": {
"rank": {
"type": [
"number",
"null"
],
"description": "rank by stake"
},
"slashed": {
"type": [
"boolean",
"null"
],
"description": "true when slashed"
},
"share_pct": {
"type": [
"number",
"null"
],
"description": "share of total stake"
},
"account_id": {
"type": [
"string",
"null"
],
"description": "validator account"
},
"stake_near": {
"type": [
"number",
"null"
],
"description": "stake in NEAR"
},
"block_uptime_pct": {
"type": [
"number",
"null"
],
"description": "produced over expected, percent"
},
"blocks_produced_expected": {
"type": [
"string",
"null"
],
"description": "blocks produced over expected"
}
}
},
"description": "largest validators first"
},
"epoch_height": {
"type": "number",
"description": "current epoch"
},
"top_10_share_pct": {
"type": "number",
"description": "share held by the 10 largest"
},
"total_stake_near": {
"type": "number",
"description": "total stake in NEAR"
},
"active_validators": {
"type": "number",
"description": "validators in the epoch"
},
"slashed_validators": {
"type": "number",
"description": "validators flagged slashed"
},
"top_33_pct_validator_count": {
"type": "number",
"description": "validators needed to hold a third of the stake"
}
}
},
"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.
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
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
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
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
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
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/validators/near",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:137",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/validators/near",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/validators/near",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/validators/near",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/validators/near",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/validators/near",
"description": "",
"maxAmountRequired": "91656",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-21 04:12Z
- Last indexed by Roundhouse
- 2026-10-23 23:45Z
- Last enriched (probe, favicon, geo)
- 2026-10-23 23:46Z
- 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/validators/near, 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.