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. 15 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:hn-top",
"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:hn-top",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpobi10b3AiLCJyZWZlcmVuY2UiOiJKM0xETmJYNE5zQWhIWG5GVG02UGZVQm9mTVBablo2YmdlRlhqcUY0WFM3SyIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMzYxODQwMTk1fQ.SdjQ1PcePW1yBtVB0HU_rCfhNJA-zCDjGahjY0YgpFc",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"reference": "J3LDNbX4NsAhHXnFTm6PfUBofMPZnZ6bgeFXjqF4XS7K"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/hn/top?kind=top&limit=10",
"tags": [
"hacker news",
"front page",
"top stories",
"trending tech",
"ask hn show hn"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Hacker News front page - current top, new, Ask HN or Show HN stories with rank, points, comments and links",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"hacker news",
"front page",
"top stories",
"trending tech",
"ask hn show hn"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"kind": "top",
"limit": "10"
}
},
"output": {
"type": "json",
"example": {
"kind": "top",
"source": "Hacker News via Algolia",
"stories": [
{
"url": "https://research.meta.ai/blog/muse-wonder",
"rank": 1,
"title": "Muse Wonder",
"author": "meetpateltech",
"hn_url": "https://news.ycombinator.com/item?id=50059115",
"points": 482,
"comments": 257,
"created_at": "2026-10-12T16:48:01Z"
},
{
"url": "https://github.com/openai/codex/issues/48195",
"rank": 2,
"title": "Codex CLI installs a persistent, self-updating background daemon by default",
"author": "whimblepop",
"hn_url": "https://news.ycombinator.com/item?id=50060694",
"points": 399,
"comments": 217,
"created_at": "2026-10-12T18:29:04Z"
},
{
"url": "https://z.ai/blog/glm-legal",
"rank": 3,
"title": "GLM-Legal",
"author": "ilreb",
"hn_url": "https://news.ycombinator.com/item?id=50058507",
"points": 380,
"comments": 217,
"created_at": "2026-10-12T16:11:45Z"
},
{
"url": "https://github.com/qgis/QGIS-Enhancement-Proposals/pull/387",
"rank": 4,
"title": "QGIS enacts moratorium on AI contributions",
"author": "bwnkl",
"hn_url": "https://news.ycombinator.com/item?id=50054751",
"points": 359,
"comments": 391,
"created_at": "2026-10-12T11:22:24Z"
},
{
"url": "https://www.tomshardware.com/tech-industry/cyber-security/unprecedented-cyberattack-cripples-supermarket-fridges-across-europe-as-hackers-activate-automatic-defrosting-delivery-and-store-prices-also-impacted-by-incident",
"rank": 5,
"title": "Hackers activate automatic defrosting in supermarket fridges across Europe",
"author": "Zeekaas",
"hn_url": "https://news.ycombinator.com/item?id=50055304",
"points": 355,
"comments": 579,
"created_at": "2026-10-12T12:16:42Z"
},
{
"url": "https://prophitt.me/writing/a-modern-web-app-in-c",
"rank": 6,
"title": "A Modern Web App in C",
"author": "prophittcorey",
"hn_url": "https://news.ycombinator.com/item?id=50058528",
"points": 341,
"comments": 150,
"created_at": "2026-10-12T16:13:10Z"
},
{
"url": "https://arstechnica.com/ai/2026/10/ai-coding-agents-generate-more-code-but-not-more-software/",
"rank": 7,
"title": "AI coding agents generate more code, but not more software",
"author": "gumby",
"hn_url": "https://news.ycombinator.com/item?id=50059523",
"points": 284,
"comments": 239,
"created_at": "2026-10-12T17:14:01Z"
},
{
"url": "https://github.com/snuri00/ps2-web-recomp",
"rank": 8,
"title": "Show HN: PS2 games statically recompiled to WebAssembly",
"author": "deadxwarrior",
"hn_url": "https://news.ycombinator.com/item?id=50052251",
"points": 257,
"comments": 138,
"created_at": "2026-10-12T06:46:53Z"
},
{
"url": "https://www.bbc.com/news/articles/c620r33plgppo",
"rank": 9,
"title": "Citroen revives the 2CV for an electric age",
"author": "scrlk",
"hn_url": "https://news.ycombinator.com/item?id=50055220",
"points": 235,
"comments": 285,
"created_at": "2026-10-12T12:09:09Z"
},
{
"url": "https://lalinsky.com/2026/10/11/type-safe-html-templating-in-zig.html",
"rank": 10,
"title": "Type-safe HTML templating in Zig",
"author": "lukaslalinsky",
"hn_url": "https://news.ycombinator.com/item?id=50051573",
"points": 232,
"comments": 82,
"created_at": "2026-10-12T05:02:34Z"
}
],
"returned": 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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"kind": {
"type": "string",
"description": "optional top (default), new, ask or show"
},
"limit": {
"type": "string",
"description": "optional 1-30, default 15"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"kind",
"stories"
],
"properties": {
"kind": {
"type": "string",
"description": "Kind of record"
},
"source": {
"type": [
"string",
"null"
],
"description": "Data source the values come from"
},
"stories": {
"type": "array",
"items": {
"type": "object",
"properties": {
"url": {
"type": [
"string",
"null"
],
"description": "Canonical URL"
},
"rank": {
"type": "number",
"description": "Rank, 1 is highest"
},
"title": {
"type": [
"string",
"null"
],
"description": "Title"
},
"author": {
"description": "Author name"
},
"hn_url": {
"type": "string",
"description": "Hn URL"
},
"points": {
"type": [
"number",
"null"
]
},
"comments": {
"type": [
"number",
"null"
]
},
"created_at": {
"description": "Created at (UTC unless a time zone is given)"
}
}
}
},
"returned": {
"type": "number",
"description": "Number of items in this response"
},
"checked_at": {
"type": [
"string",
"null"
],
"description": "Time the check was run (UTC)"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"kind": "top",
"source": "Hacker News via Algolia",
"stories": [
{
"url": "https://research.meta.ai/blog/muse-wonder",
"rank": 1,
"title": "Muse Wonder",
"author": "meetpateltech",
"hn_url": "https://news.ycombinator.com/item?id=50059115",
"points": 482,
"comments": 257,
"created_at": "2026-10-12T16:48:01Z"
},
{
"url": "https://github.com/openai/codex/issues/48195",
"rank": 2,
"title": "Codex CLI installs a persistent, self-updating background daemon by default",
"author": "whimblepop",
"hn_url": "https://news.ycombinator.com/item?id=50060694",
"points": 399,
"comments": 217,
"created_at": "2026-10-12T18:29:04Z"
},
{
"url": "https://z.ai/blog/glm-legal",
"rank": 3,
"title": "GLM-Legal",
"author": "ilreb",
"hn_url": "https://news.ycombinator.com/item?id=50058507",
"points": 380,
"comments": 217,
"created_at": "2026-10-12T16:11:45Z"
},
{
"url": "https://github.com/qgis/QGIS-Enhancement-Proposals/pull/387",
"rank": 4,
"title": "QGIS enacts moratorium on AI contributions",
"author": "bwnkl",
"hn_url": "https://news.ycombinator.com/item?id=50054751",
"points": 359,
"comments": 391,
"created_at": "2026-10-12T11:22:24Z"
},
{
"url": "https://www.tomshardware.com/tech-industry/cyber-security/unprecedented-cyberattack-cripples-supermarket-fridges-across-europe-as-hackers-activate-automatic-defrosting-delivery-and-store-prices-also-impacted-by-incident",
"rank": 5,
"title": "Hackers activate automatic defrosting in supermarket fridges across Europe",
"author": "Zeekaas",
"hn_url": "https://news.ycombinator.com/item?id=50055304",
"points": 355,
"comments": 579,
"created_at": "2026-10-12T12:16:42Z"
},
{
"url": "https://prophitt.me/writing/a-modern-web-app-in-c",
"rank": 6,
"title": "A Modern Web App in C",
"author": "prophittcorey",
"hn_url": "https://news.ycombinator.com/item?id=50058528",
"points": 341,
"comments": 150,
"created_at": "2026-10-12T16:13:10Z"
},
{
"url": "https://arstechnica.com/ai/2026/10/ai-coding-agents-generate-more-code-but-not-more-software/",
"rank": 7,
"title": "AI coding agents generate more code, but not more software",
"author": "gumby",
"hn_url": "https://news.ycombinator.com/item?id=50059523",
"points": 284,
"comments": 239,
"created_at": "2026-10-12T17:14:01Z"
},
{
"url": "https://github.com/snuri00/ps2-web-recomp",
"rank": 8,
"title": "Show HN: PS2 games statically recompiled to WebAssembly",
"author": "deadxwarrior",
"hn_url": "https://news.ycombinator.com/item?id=50052251",
"points": 257,
"comments": 138,
"created_at": "2026-10-12T06:46:53Z"
},
{
"url": "https://www.bbc.com/news/articles/c620r33plgppo",
"rank": 9,
"title": "Citroen revives the 2CV for an electric age",
"author": "scrlk",
"hn_url": "https://news.ycombinator.com/item?id=50055220",
"points": 235,
"comments": 285,
"created_at": "2026-10-12T12:09:09Z"
},
{
"url": "https://lalinsky.com/2026/10/11/type-safe-html-templating-in-zig.html",
"rank": 10,
"title": "Type-safe HTML templating in Zig",
"author": "lukaslalinsky",
"hn_url": "https://news.ycombinator.com/item?id=50051573",
"points": 232,
"comments": 82,
"created_at": "2026-10-12T05:02:34Z"
}
],
"returned": 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": {
"kind": "optional top (default), new, ask or show",
"limit": "optional 1-30, default 15"
},
"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": [
"kind",
"stories"
],
"properties": {
"kind": {
"type": "string"
},
"stories": {
"type": "array",
"items": {
"type": "object",
"properties": {
"url": {
"type": [
"string",
"null"
]
},
"rank": {
"type": "number"
},
"title": {
"type": [
"string",
"null"
]
},
"hn_url": {
"type": "string"
},
"points": {
"type": [
"number",
"null"
]
},
"comments": {
"type": [
"number",
"null"
]
}
}
}
},
"returned": {
"type": "number"
}
}
},
"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 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
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/hn/top",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/hn/top",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-17 10:14Z
- Last indexed by Roundhouse
- 2026-10-25 15:16Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 22:15Z
- 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. 15 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/hn/top, 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.