ssl-certificate-expiry-watch
Change watch for ssl certificate expiry: runs the check and compares it with the result from your previous call for the same url (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when ssl/tls certificate expiry check for a hostname changes. $0.01 per check.
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.
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 0x91D5…F0abd. The signed payment is good for 2 minutes.
- Paid to
- 0x91D5…F0abd
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
Pay 0.01 USDC on Base Sepolia to 0x91D5…F0abd. The signed payment is good for 2 minutes.
- Paid to
- 0x91D5…F0abd
- USD Coin (Base Sepolia) contract
- 0x036C…dCF7e
- Payment window
- 2 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x91D568599fB802Cb3f03F067D2063785dBAF0abd",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0x91D568599fB802Cb3f03F067D2063785dBAF0abd",
"amount": "10000",
"scheme": "exact",
"network": "eip155:84532",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "github.com"
}
},
"output": {
"type": "json",
"example": {
"url": "github.com",
"changed": true,
"changes": [
{
"after": "…",
"field": "…",
"before": "…"
}
],
"current": {
"up": true,
"url": "https://github.com/",
"hostname": "github.com",
"https_final": true,
"tls_certificate": {
"note": "latest certificate seen in public CT logs; the server may present a different (newer) one",
"sans": [
"*.example.com",
"example.com"
],
"issuer": "C=US, O=DigiCert Inc, CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1",
"source": "crt.sh",
"available": true,
"days_left": 127,
"not_after": "2027-01-15T23:59:59",
"valid_now": true,
"not_before": "2026-01-15T00:00:00",
"common_name": "*.example.com",
"logged_certificates": 42
}
},
"first_seen": false,
"previous_at": "2026-09-12T00:00:00.000Z"
}
}
},
"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": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-13 13:02Z
- Last indexed by Roundhouse
- 2026-09-24 21:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 15:17Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 0
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. 11 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 ssl-certificate-expiry-watch 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=ssl-certificate-expiry-watch' 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://intel.rallylive.ca/watch/ssl-expiry, 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.