2s
CVE change feed — the CVE records MODIFIED within a time window, so an agent can incrementally maintain a vulnerability view instead of re-scanning. Pass since (YYYY-MM-DD or ISO datetime); until defaults to now (window must be ≤ 120 days, the NVD limit). Optionally narrow by keyword (product/text) or cpe (exact CPE). Returns each changed CVE with its id, published + lastModified timestamps, current vulnStatus (e.g. Modified, Analyzed, Rejected), best-available CVSS score/severity, description, and kevListed — whether it is now on the CISA Known-Exploited Vulnerabilities catalog (the high-signal flag for a poller). Newest modification first. Sourced live from NVD (NIST) + CISA KEV, free/keyless. Pair with security.cve for full per-CVE detail.
SearchLiveeip155:8453Exactvia cdp
Public-recordsIdentifiersAi-agentsUs-gov-datax402
Settlements · 30d
1,140↓ 25%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$15.85
Verified settled volume
A floor: summed over 5,000 of 36,092 verified settlements.
$0.0022
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-19 06:05Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5The 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-SIGNATURE required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "5400",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "5400",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://2s.io/api/security/cve-changes",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402",
"upto-billing",
"ai-gateway",
"agent-infrastructure"
],
"iconUrl": "https://2s.io/icon-512.png",
"mimeType": "application/json",
"description": "CVE change feed — the CVE records MODIFIED within a time window, so an agent can incrementally maintain a vulnerability view instead of re-scanning. Pass since (YYYY-MM-DD or ISO datetime); until defaults to now (window must be ≤ 120 days, the NVD limit). Optionally narrow by keyword (product/text) or cpe (exact CPE). Returns each changed CVE with its id, published + lastModified timestamps, current vulnStatus (e.g. Modified, Analyzed, Rejected), best-available CVSS score/severity, description, and kevListed — whether it is now on the CISA Known-Exploited Vulnerabilities catalog (the high-signal flag for a poller). Newest modification first. Sourced live from NVD (NIST) + CISA KEV, free/keyless. Pair with security.cve for full per-CVE detail.",
"serviceName": "2s"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 5,
"since": "2026-06-14"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"meta": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"window": {
"type": "object",
"properties": {
"since": {
"type": "string"
},
"until": {
"type": "string"
}
}
}
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cvss": {
"type": "object",
"properties": {
"version": {
"type": "string"
},
"severity": {
"type": "string"
},
"baseScore": {
"type": "number"
}
}
},
"kevListed": {
"type": "boolean"
},
"published": {
"type": "string"
},
"vulnStatus": {
"type": "string"
},
"description": {
"type": "string"
},
"lastModified": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"meta": {
"total": 35,
"window": {
"since": "2026-06-14T00:00:00.000",
"until": "2026-06-15T00:00:00.000"
}
},
"items": [
{
"id": "CVE-2026-12345",
"cvss": {
"version": "3.1",
"severity": "CRITICAL",
"baseScore": 9.8
},
"kevListed": false,
"published": "2026-05-01T00:00:00.000",
"vulnStatus": "Analyzed",
"description": "…",
"lastModified": "2026-06-14T18:22:11.000"
}
],
"total": 35,
"source": {
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0",
"license": "NVD and CISA KEV are US Government works, public domain.",
"provider": "NVD (NIST National Vulnerability Database) + CISA Known Exploited Vulnerabilities"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"required": [
"since"
],
"properties": {
"cpe": {
"type": "string",
"description": "Optional exact CPE name filter."
},
"limit": {
"type": "integer",
"description": "Max results (1-100, default 40)."
},
"since": {
"type": "string",
"description": "Window start (YYYY-MM-DD or ISO datetime)."
},
"until": {
"type": "string",
"description": "Window end (default now). Max 120-day window."
},
"keyword": {
"type": "string",
"description": "Optional product/text filter."
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"meta": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"window": {
"type": "object",
"properties": {
"since": {
"type": "string"
},
"until": {
"type": "string"
}
}
}
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cvss": {
"type": "object",
"properties": {
"version": {
"type": "string"
},
"severity": {
"type": "string"
},
"baseScore": {
"type": "number"
}
}
},
"kevListed": {
"type": "boolean"
},
"published": {
"type": "string"
},
"vulnStatus": {
"type": "string"
},
"description": {
"type": "string"
},
"lastModified": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
}
}
}
}
},
"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.
0.00216USDC≈ $0.00216 USD
on Base · exact scheme
Pay 0.00216 USDC on Base to 0x2b6D…C32C5. The signed payment is good for 1 minute.
- Paid to
- 0x2b6D…C32C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 2160 smallest units
2160units
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
- TW6nta…cyWhn
- Token contract
- EPjFWd…TDt1v
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "2160",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "2160",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 5,
"since": "2026-06-14"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"meta": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"window": {
"type": "object",
"properties": {
"since": {
"type": "string"
},
"until": {
"type": "string"
}
}
}
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cvss": {
"type": "object",
"properties": {
"version": {
"type": "string"
},
"severity": {
"type": "string"
},
"baseScore": {
"type": "number"
}
}
},
"kevListed": {
"type": "boolean"
},
"published": {
"type": "string"
},
"vulnStatus": {
"type": "string"
},
"description": {
"type": "string"
},
"lastModified": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"meta": {
"total": 35,
"window": {
"since": "2026-06-14T00:00:00.000",
"until": "2026-06-15T00:00:00.000"
}
},
"items": [
{
"id": "CVE-2026-12345",
"cvss": {
"version": "3.1",
"severity": "CRITICAL",
"baseScore": 9.8
},
"kevListed": false,
"published": "2026-05-01T00:00:00.000",
"vulnStatus": "Analyzed",
"description": "…",
"lastModified": "2026-06-14T18:22:11.000"
}
],
"total": 35,
"source": {
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0",
"license": "NVD and CISA KEV are US Government works, public domain.",
"provider": "NVD (NIST National Vulnerability Database) + CISA Known Exploited Vulnerabilities"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"required": [
"since"
],
"properties": {
"cpe": {
"type": "string",
"description": "Optional exact CPE name filter."
},
"limit": {
"type": "integer",
"description": "Max results (1-100, default 40)."
},
"since": {
"type": "string",
"description": "Window start (YYYY-MM-DD or ISO datetime)."
},
"until": {
"type": "string",
"description": "Window end (default now). Max 120-day window."
},
"keyword": {
"type": "string",
"description": "Optional product/text filter."
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"meta": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"window": {
"type": "object",
"properties": {
"since": {
"type": "string"
},
"until": {
"type": "string"
}
}
}
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cvss": {
"type": "object",
"properties": {
"version": {
"type": "string"
},
"severity": {
"type": "string"
},
"baseScore": {
"type": "number"
}
}
},
"kevListed": {
"type": "boolean"
},
"published": {
"type": "string"
},
"vulnStatus": {
"type": "string"
},
"description": {
"type": "string"
},
"lastModified": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-19 06:05Z
- Last indexed by Roundhouse
- 2026-07-16 20:50Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 05:45Z
- x402 version
- 2
- Max timeout
- 60s
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service 2s 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=2s' 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://2s.io/api/security/cve-changes, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.