Saylor Innovations Data Desk
Status board for 16 EVM chains in one call: latest block, head age, gas price and a health flag, with the slowest chain and the cheapest gas.
TradingLiveeip155:8453Exactvia cdp
Chain status boardIs chain haltedEvm network healthGas price all chainsBlock height all chains
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 2026-10-23 01:17Z
—
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:chain-status-all",
"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:chain-status-all",
"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:chain-status-all",
"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:chain-status-all",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiSE1xOTgxVGU1U3Y2M3JEZEd2WTNFN1JXckdzZHFmUVQ1cFRKSmU3NE5rRGUiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU1ODA2MDU4Mn0.QqfSjZoQSBzAWGP6oNeUk5nfYftRQvAV1fnqnlD-Pm4",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"reference": "HMq981Te5Sv63rDdGvY3E7RWrGsdqfQT5pTJJe74NkDe"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:chain-status-all",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiRjRHYVVYaG5kU1BKNkVIY0E5MWFNZ0toaXZoV1BTTXdSakJBQjhhZm5zeW8iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjU1ODA2MDU4Mn0.sZm2Ii-f1xa9gbevEM6T4yhktDBkR0rIU3caf5I7-jc",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"reference": "F4GaUXhndSPJ6EHcA91aMgKhivhWPSMwRjBAB8afnsyo"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:chain-status-all",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiNURTY1F1VTZIeTd0Y1ZjVVQ3bVNjdUZOY1J6Q3hHRDRGQnZSN2EyV0s3R3giLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTE4MTIsImV4cCI6MTc5MjU1ODA2MDU4Mn0.auWg_l9JveLbNlp4oWlErdirCnB45mxBmT5o4P8e104",
"reference": "5DScQuU6Hy7tcVcUT7mScuFNcRzCxGD4FBvR7a2WK7Gx",
"solUsdPrice": 105.65,
"quotedLamports": "94652"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "91812",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/chain/status-all",
"tags": [
"chain status board",
"is chain halted",
"evm network health",
"gas price all chains",
"block height all chains"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Status board for 16 EVM chains in one call: latest block, head age, gas price and a health flag, with the slowest chain and the cheapest gas.",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"chain status board",
"is chain halted",
"evm network health",
"gas price all chains",
"block height all chains"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"note": "A chain is healthy when its latest block is under 120 seconds old and the node answered. Gas prices are in each chain's own gwei, so cheapest_gas_chain compares gwei, not dollars.",
"source": "Chain JSON-RPC (16 EVM chains)",
"results": [
{
"ms": 120,
"ok": true,
"chain": "ethereum",
"layer": "L1",
"healthy": true,
"chain_id": 1,
"block_number": 26238003,
"native_symbol": "ETH",
"gas_price_gwei": 0.044381,
"head_age_seconds": 6
},
{
"ms": 101,
"ok": true,
"chain": "base",
"layer": "L2",
"healthy": true,
"chain_id": 8453,
"block_number": 52880306,
"native_symbol": "ETH",
"gas_price_gwei": 0.006,
"head_age_seconds": 2
},
{
"ms": 110,
"ok": true,
"chain": "arbitrum",
"layer": "L2",
"healthy": true,
"chain_id": 42161,
"block_number": 516784259,
"native_symbol": "ETH",
"gas_price_gwei": 0.02,
"head_age_seconds": 1
}
],
"elapsed_ms": 123,
"chains_healthy": 16,
"chains_queried": 16,
"chains_answering": 16,
"cheapest_gas_chain": "gnosis",
"slowest_head_chain": "ethereum"
}
}
},
"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"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"chains_queried",
"chains_answering",
"chains_healthy",
"results",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"results": {
"type": [
"array",
"null"
],
"items": {
"type": "object",
"properties": {
"ok": {
"type": [
"boolean",
"null"
],
"description": "false when the chain did not answer"
},
"chain": {
"type": [
"string",
"null"
],
"description": "chain name"
},
"layer": {
"type": [
"string",
"null"
],
"description": "L1 or L2"
},
"healthy": {
"type": [
"boolean",
"null"
],
"description": "true when head age is under 120 seconds"
},
"block_number": {
"type": [
"number",
"null"
],
"description": "latest block height"
},
"gas_price_gwei": {
"type": [
"number",
"null"
],
"description": "gas price in gwei"
},
"head_age_seconds": {
"type": [
"number",
"null"
],
"description": "age of the latest block"
}
}
},
"description": "one entry per chain"
},
"elapsed_ms": {
"type": "number",
"description": "total time for all chains"
},
"chains_healthy": {
"type": "number",
"description": "chains with a head under 120 seconds old"
},
"chains_queried": {
"type": "number",
"description": "chains asked"
},
"chains_answering": {
"type": "number",
"description": "chains that answered"
},
"cheapest_gas_chain": {
"type": [
"string",
"null"
],
"description": "chain with the lowest gas price in gwei"
},
"slowest_head_chain": {
"type": [
"string",
"null"
],
"description": "chain with the oldest latest block"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"note": "A chain is healthy when its latest block is under 120 seconds old and the node answered. Gas prices are in each chain's own gwei, so cheapest_gas_chain compares gwei, not dollars.",
"source": "Chain JSON-RPC (16 EVM chains)",
"results": [
{
"ms": 120,
"ok": true,
"chain": "ethereum",
"layer": "L1",
"healthy": true,
"chain_id": 1,
"block_number": 26238003,
"native_symbol": "ETH",
"gas_price_gwei": 0.044381,
"head_age_seconds": 6
},
{
"ms": 101,
"ok": true,
"chain": "base",
"layer": "L2",
"healthy": true,
"chain_id": 8453,
"block_number": 52880306,
"native_symbol": "ETH",
"gas_price_gwei": 0.006,
"head_age_seconds": 2
},
{
"ms": 110,
"ok": true,
"chain": "arbitrum",
"layer": "L2",
"healthy": true,
"chain_id": 42161,
"block_number": 516784259,
"native_symbol": "ETH",
"gas_price_gwei": 0.02,
"head_age_seconds": 1
},
{
"ms": 101,
"ok": true,
"chain": "optimism",
"layer": "L2",
"healthy": true,
"chain_id": 10,
"block_number": 158475591,
"native_symbol": "ETH",
"gas_price_gwei": 0.001003,
"head_age_seconds": 2
},
{
"ms": 118,
"ok": true,
"chain": "polygon",
"layer": "L1",
"healthy": true,
"chain_id": 137,
"block_number": 95896395,
"native_symbol": "POL",
"gas_price_gwei": 274.5457,
"head_age_seconds": 0
},
{
"ms": 108,
"ok": true,
"chain": "bsc",
"layer": "L1",
"healthy": true,
"chain_id": 56,
"block_number": 128858660,
"native_symbol": "BNB",
"gas_price_gwei": 0.05,
"head_age_seconds": 1
},
{
"ms": 100,
"ok": true,
"chain": "avalanche",
"layer": "L1",
"healthy": true,
"chain_id": 43114,
"block_number": 98110347,
"native_symbol": "AVAX",
"gas_price_gwei": 2.5,
"head_age_seconds": 2
},
{
"ms": 116,
"ok": true,
"chain": "gnosis",
"layer": "L1",
"healthy": true,
"chain_id": 100,
"block_number": 48860958,
"native_symbol": "xDAI",
"gas_price_gwei": 0,
"head_age_seconds": 1
},
{
"ms": 100,
"ok": true,
"chain": "linea",
"layer": "L2",
"healthy": true,
"chain_id": 59144,
"block_number": 32381727,
"native_symbol": "ETH",
"gas_price_gwei": 0.48,
"head_age_seconds": 3
},
{
"ms": 113,
"ok": true,
"chain": "scroll",
"layer": "L2",
"healthy": true,
"chain_id": 534352,
"block_number": 35447901,
"native_symbol": "ETH",
"gas_price_gwei": 0.00012,
"head_age_seconds": 4
},
{
"ms": 116,
"ok": true,
"chain": "mantle",
"layer": "L2",
"healthy": true,
"chain_id": 5000,
"block_number": 102209824,
"native_symbol": "MNT",
"gas_price_gwei": 50.0001,
"head_age_seconds": 1
},
{
"ms": 115,
"ok": true,
"chain": "blast",
"layer": "L2",
"healthy": true,
"chain_id": 81457,
"block_number": 41870072,
"native_symbol": "ETH",
"gas_price_gwei": 0.001,
"head_age_seconds": 2
},
{
"ms": 105,
"ok": true,
"chain": "sonic",
"layer": "L1",
"healthy": true,
"chain_id": 146,
"block_number": 81387694,
"native_symbol": "S",
"gas_price_gwei": 55,
"head_age_seconds": 3
},
{
"ms": 115,
"ok": true,
"chain": "celo",
"layer": "L1",
"healthy": true,
"chain_id": 42220,
"block_number": 80649202,
"native_symbol": "CELO",
"gas_price_gwei": 200.001,
"head_age_seconds": 1
},
{
"ms": 113,
"ok": true,
"chain": "berachain",
"layer": "L1",
"healthy": true,
"chain_id": 80094,
"block_number": 27767621,
"native_symbol": "BERA",
"gas_price_gwei": 12.542,
"head_age_seconds": 3
},
{
"ms": 113,
"ok": true,
"chain": "unichain",
"layer": "L2",
"healthy": true,
"chain_id": 130,
"block_number": 61801601,
"native_symbol": "ETH",
"gas_price_gwei": 0.0015,
"head_age_seconds": 1
}
],
"elapsed_ms": 123,
"chains_healthy": 16,
"chains_queried": 16,
"chains_answering": 16,
"cheapest_gas_chain": "gnosis",
"slowest_head_chain": "ethereum"
},
"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": {},
"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": [
"chains_queried",
"chains_answering",
"chains_healthy",
"results",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"results": {
"type": [
"array",
"null"
],
"items": {
"type": "object",
"properties": {
"ok": {
"type": [
"boolean",
"null"
],
"description": "false when the chain did not answer"
},
"chain": {
"type": [
"string",
"null"
],
"description": "chain name"
},
"layer": {
"type": [
"string",
"null"
],
"description": "L1 or L2"
},
"healthy": {
"type": [
"boolean",
"null"
],
"description": "true when head age is under 120 seconds"
},
"block_number": {
"type": [
"number",
"null"
],
"description": "latest block height"
},
"gas_price_gwei": {
"type": [
"number",
"null"
],
"description": "gas price in gwei"
},
"head_age_seconds": {
"type": [
"number",
"null"
],
"description": "age of the latest block"
}
}
},
"description": "one entry per chain"
},
"elapsed_ms": {
"type": "number",
"description": "total time for all chains"
},
"chains_healthy": {
"type": "number",
"description": "chains with a head under 120 seconds old"
},
"chains_queried": {
"type": "number",
"description": "chains asked"
},
"chains_answering": {
"type": "number",
"description": "chains that answered"
},
"cheapest_gas_chain": {
"type": [
"string",
"null"
],
"description": "chain with the lowest gas price in gwei"
},
"slowest_head_chain": {
"type": [
"string",
"null"
],
"description": "chain with the oldest latest block"
}
}
},
"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 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
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
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
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
93547units
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
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"memo": "saylor:datadesk:chain-status-all",
"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:chain-status-all",
"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:chain-status-all",
"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:chain-status-all",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiSHU5ZGdNZGpUR3ZkUXpldWtWU0dFcHd5WDl1aDdEVVd2NnRoOFhzTVRjcDIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjcxODM1MjM1Nn0.RYR93Pt_o-9V5qt0OgOvy_avAWEsue-0xoQY4_MHMxc",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "Hu9dgMdjTGvdQzeukVSGEpwyX9uh7DUWv6th8XsMTcp2"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:chain-status-all",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiSkJSaHVKN2tYSHBlR1lhOGJOa0tjem9VOGd5TG1UN1FMOGdWRlBaeWdaR24iLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjcxODM1MjM1Nn0.Y5T9I97G6JtswxYvfzvBLq1GXhzx0WF7YLpifpmTmNE",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "JBRhuJ7kXHpeGYa8bNkKczoU8gyLmT7QL8gVFPZygZGn"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:chain-status-all",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpjaGFpbi1zdGF0dXMtYWxsIiwicmVmZXJlbmNlIjoiMnNlOTFxVDFMZnphaTZiQkY5Snl6WVIzQjk5UTNUSGh1anZYU25DQVAxbnQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTM1NDcsImV4cCI6MTc5MjcxODM1MjM1Nn0.UJ8ggkEB0aiRHQ2ZJikXG7xC7QM-4o8P6YfsFOjiNcs",
"reference": "2se91qT1Lfzai6bBF9JyzYR3B99Q3THhujvXSnCAP1nt",
"solUsdPrice": 103.69,
"quotedLamports": "96441"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "93547",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"note": "A chain is healthy when its latest block is under 120 seconds old and the node answered. Gas prices are in each chain's own gwei, so cheapest_gas_chain compares gwei, not dollars.",
"source": "Chain JSON-RPC (16 EVM chains)",
"results": [
{
"ms": 120,
"ok": true,
"chain": "ethereum",
"layer": "L1",
"healthy": true,
"chain_id": 1,
"block_number": 26238003,
"native_symbol": "ETH",
"gas_price_gwei": 0.044381,
"head_age_seconds": 6
},
{
"ms": 101,
"ok": true,
"chain": "base",
"layer": "L2",
"healthy": true,
"chain_id": 8453,
"block_number": 52880306,
"native_symbol": "ETH",
"gas_price_gwei": 0.006,
"head_age_seconds": 2
},
{
"ms": 110,
"ok": true,
"chain": "arbitrum",
"layer": "L2",
"healthy": true,
"chain_id": 42161,
"block_number": 516784259,
"native_symbol": "ETH",
"gas_price_gwei": 0.02,
"head_age_seconds": 1
}
],
"elapsed_ms": 123,
"chains_healthy": 16,
"chains_queried": 16,
"chains_answering": 16,
"cheapest_gas_chain": "gnosis",
"slowest_head_chain": "ethereum"
}
}
},
"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"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"chains_queried",
"chains_answering",
"chains_healthy",
"results",
"note",
"source"
],
"properties": {
"note": {
"type": "string",
"description": "plain-language reading of the result"
},
"source": {
"type": "string",
"description": "where the data was read from or how it was computed"
},
"results": {
"type": [
"array",
"null"
],
"items": {
"type": "object",
"properties": {
"ok": {
"type": [
"boolean",
"null"
],
"description": "false when the chain did not answer"
},
"chain": {
"type": [
"string",
"null"
],
"description": "chain name"
},
"layer": {
"type": [
"string",
"null"
],
"description": "L1 or L2"
},
"healthy": {
"type": [
"boolean",
"null"
],
"description": "true when head age is under 120 seconds"
},
"block_number": {
"type": [
"number",
"null"
],
"description": "latest block height"
},
"gas_price_gwei": {
"type": [
"number",
"null"
],
"description": "gas price in gwei"
},
"head_age_seconds": {
"type": [
"number",
"null"
],
"description": "age of the latest block"
}
}
},
"description": "one entry per chain"
},
"elapsed_ms": {
"type": "number",
"description": "total time for all chains"
},
"chains_healthy": {
"type": "number",
"description": "chains with a head under 120 seconds old"
},
"chains_queried": {
"type": "number",
"description": "chains asked"
},
"chains_answering": {
"type": "number",
"description": "chains that answered"
},
"cheapest_gas_chain": {
"type": [
"string",
"null"
],
"description": "chain with the lowest gas price in gwei"
},
"slowest_head_chain": {
"type": [
"string",
"null"
],
"description": "chain with the oldest latest block"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-23 01:17Z
- Last indexed by Roundhouse
- 2026-10-26 15:10Z
- Last enriched (probe, favicon, geo)
- 2026-10-21 04:45Z
- 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/chain/status-all, 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.