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:deps-dev",
"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:deps-dev",
"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:deps-dev",
"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:deps-dev",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpkZXBzLWRldiIsInJlZmVyZW5jZSI6IkU4anU1d2lwWFV0UmVGS0pnajFNVkVGRHd5Z3Z0M3hlM1Bmb2NWckVXVjFTIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIzNjU0NDU5NDZ9.E_XiDoETJpkLX5lsUirkjqREdtLEUjyZypafJEtlEc4",
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"reference": "E8ju5wipXUtReFKJgj1MVEFDwygvt3xe3PfocVrEWV1S"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"extra": {
"memo": "saylor:datadesk:deps-dev",
"session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpkZXBzLWRldiIsInJlZmVyZW5jZSI6IlptMzdkRzFTM2dRdkV6aTlHZ1BYczNLVVZ5NVZmcTNwaFNTbnhhS0hlYzUiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjM2NTQ0NTk0Nn0.OtjUKzSr02AAzQOfAe12uuWTmuJiuOixHfPlwR8cqUQ",
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"reference": "Zm37dG1S3gQvEzi9GgPXs3KUVy5Vfq3phSSnxaKHec5"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"extra": {
"memo": "saylor:datadesk:deps-dev",
"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": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpkZXBzLWRldiIsInJlZmVyZW5jZSI6IjZ0UFhwclVEa2pmblJVeTZmMTVVaUcxdld6QkJHcHNHOXZoeXoyRG9aZ3I1IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjkzNTIwLCJleHAiOjE3OTIzNjU0NDU5NDZ9.Jfp6mQ5b_miGEzIDJbxWJ6HvXgmZzmUiQ6c-p30199E",
"reference": "6tPXprUDkjfnRUy6f15UiG1vWzBBGpsG9vhyz2DoZgr5",
"solUsdPrice": 103.72,
"quotedLamports": "96413"
},
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"amount": "93520",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://saylorinnovations.com/api/security/deps-dev?system=npm&name=express&version=4.19.2",
"tags": [
"package license check",
"known vulnerabilities",
"deps dev advisories",
"is this npm version deprecated",
"open source insights package"
],
"iconUrl": "https://saylorinnovations.com/og-image.jpg",
"mimeType": "application/json",
"description": "Check a package version on deps.dev - licences, known advisories with CVSS and CVE aliases, deprecation, provenance and source project for npm, PyPI, Maven, Go, Cargo, NuGet",
"serviceName": "Saylor Innovations Data Desk"
},
"extensions": {
"tags": [
"package license check",
"known vulnerabilities for a package version",
"deps dev advisories",
"is this npm version deprecated",
"open source insights package",
"ghsa advisory for dependency"
],
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "express",
"system": "npm",
"version": "4.19.2"
}
},
"output": {
"type": "json",
"example": {
"name": "express",
"links": {
"origin": "https://registry.npmjs.org/express/4.19.2",
"homepage": "http://expressjs.com/",
"source_repo": "git+https://github.com/expressjs/express.git",
"issue_tracker": "https://github.com/expressjs/express/issues"
},
"source": "deps.dev (Google Open Source Insights)",
"system": "NPM",
"project": {
"forks": 25224,
"stars": 69643,
"license": "MIT",
"open_issues": 236,
"scorecard_date": "2026-08-24T00:00:00.000Z",
"scorecard_overall": 8.5
},
"version": "4.19.2",
"licenses": [
"MIT"
],
"published": "2024-03-25T14:30:36.000Z",
"advisories": [
{
"id": "GHSA-qw6h-vgh9-j6wx",
"url": "https://osv.dev/vulnerability/GHSA-qw6h-vgh9-j6wx",
"title": "express vulnerable to XSS via response.redirect()",
"aliases": [
"CVE-2024-43796"
],
"cvss3_score": 5
}
],
"deprecated": false,
"is_default": false,
"attestations": 0,
"dependencies": {
"direct": 31,
"transitive": 39,
"total_resolved": 70
},
"deps_dev_url": "https://deps.dev/npm/express/4.19.2",
"advisory_count": 1,
"source_project": "github.com/expressjs/express",
"slsa_provenance": false
}
}
},
"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": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "Package name, e.g. express, requests, org.apache.logging.log4j:log4j-core"
},
"system": {
"type": "string",
"description": "optional npm (default), pypi, maven, go, cargo or nuget"
},
"version": {
"type": "string",
"description": "optional version; defaults to the current default release"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string",
"const": "json"
},
"example": {
"type": "object",
"required": [
"system",
"name",
"version"
],
"properties": {
"mint": {
"type": [
"string",
"null"
],
"description": "Solana token mint address"
},
"name": {
"type": "string",
"description": "Name"
},
"links": {
"type": "object",
"description": "Related links"
},
"source": {
"type": "string",
"description": "Data source the values come from"
},
"symbol": {
"type": [
"string",
"null"
],
"description": "Ticker or asset symbol"
},
"system": {
"type": "string",
"description": "Package system"
},
"project": {
"type": [
"object",
"null"
]
},
"summary": {
"type": [
"string",
"null"
],
"description": "Short summary"
},
"version": {
"type": "string",
"description": "Version identifier"
},
"licenses": {
"type": "array",
"description": "License identifiers"
},
"security": {
"description": "Security assessment details"
},
"published": {
"type": [
"string",
"null"
],
"description": "Publication date"
},
"advisories": {
"type": "array",
"description": "Advisories issued"
},
"deprecated": {
"type": [
"boolean",
"null"
],
"description": "True when the package is deprecated"
},
"fetched_at": {
"type": [
"number",
"null"
],
"description": "Time the data was fetched from the source (UTC)"
},
"is_default": {
"type": [
"boolean",
"null"
],
"description": "True when this is default"
},
"sources_ok": {
"type": [
"array",
"null"
],
"description": "Data sources that answered"
},
"attestations": {
"type": [
"number",
"null"
]
},
"dependencies": {
"type": [
"object",
"null"
],
"description": "Declared dependencies"
},
"deps_dev_url": {
"type": [
"string",
"null"
],
"description": "Deps dev URL"
},
"holder_count": {
"type": [
"number",
"null"
],
"description": "Number of holder"
},
"advisory_count": {
"type": "number",
"description": "Number of advisory"
},
"security_score": {
"type": [
"number",
"null"
],
"description": "Security score from 0 to 100"
},
"source_project": {
"type": [
"string",
"null"
],
"description": "Source project"
},
"sources_failed": {
"type": [
"array",
"null"
],
"description": "Data sources that did not answer; empty when all answered"
},
"token_age_days": {
"type": [
"number",
"null"
],
"description": "Token age in days"
},
"watchdog_score": {
"type": [
"number",
"null"
],
"description": "Overall score from 0 to 100"
},
"slsa_provenance": {
"type": [
"boolean",
"null"
],
"description": "Slsa provenance"
}
}
}
}
}
}
}
},
"method": "GET",
"example": {
"name": "express",
"links": {
"origin": "https://registry.npmjs.org/express/4.19.2",
"homepage": "http://expressjs.com/",
"source_repo": "git+https://github.com/expressjs/express.git",
"issue_tracker": "https://github.com/expressjs/express/issues"
},
"source": "deps.dev (Google Open Source Insights)",
"system": "NPM",
"project": {
"forks": 25224,
"stars": 69643,
"license": "MIT",
"open_issues": 236,
"scorecard_date": "2026-08-24T00:00:00.000Z",
"scorecard_overall": 8.5
},
"version": "4.19.2",
"licenses": [
"MIT"
],
"published": "2024-03-25T14:30:36.000Z",
"advisories": [
{
"id": "GHSA-qw6h-vgh9-j6wx",
"url": "https://osv.dev/vulnerability/GHSA-qw6h-vgh9-j6wx",
"title": "express vulnerable to XSS via response.redirect()",
"aliases": [
"CVE-2024-43796"
],
"cvss3_score": 5
}
],
"deprecated": false,
"is_default": false,
"attestations": 0,
"dependencies": {
"direct": 31,
"transitive": 39,
"total_resolved": 70
},
"deps_dev_url": "https://deps.dev/npm/express/4.19.2",
"advisory_count": 1,
"source_project": "github.com/expressjs/express",
"slsa_provenance": false
},
"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": {
"name": "Package name, e.g. express, requests, org.apache.logging.log4j:log4j-core",
"system": "optional npm (default), pypi, maven, go, cargo or nuget",
"version": "optional version; defaults to the current default release"
},
"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": [
"system",
"name",
"version"
],
"properties": {
"name": {
"type": "string"
},
"links": {
"type": "object"
},
"source": {
"type": "string"
},
"system": {
"type": "string"
},
"project": {
"type": [
"object",
"null"
]
},
"version": {
"type": "string"
},
"licenses": {
"type": "array"
},
"published": {
"type": [
"string",
"null"
]
},
"advisories": {
"type": "array"
},
"dependencies": {
"type": [
"object",
"null"
]
},
"advisory_count": {
"type": "number"
},
"source_project": {
"type": [
"string",
"null"
]
}
}
},
"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/security/deps-dev",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:137",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/security/deps-dev",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/security/deps-dev",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/security/deps-dev",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/security/deps-dev",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 120
},
{
"asset": "So11111111111111111111111111111111111111112",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://saylorinnovations.com/api/security/deps-dev",
"description": "",
"maxAmountRequired": "93511",
"maxTimeoutSeconds": 120
}
]Provenance
- Seen in the source catalog
- 2026-10-18 23:10Z
- Last indexed by Roundhouse
- 2026-10-25 08:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 23:15Z
- 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. 13 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
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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/security/deps-dev, 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.