livecheck.fly.dev
Livecheck Sentinel watch - 30-day URL condition watcher. POST /v1/watch with {target, condition, callback, interval_s}. Detectors: status_change, keyword (same as /v1/check). HMAC-signed callbacks. Returns wtc_ id, owner_token (once), baseline, and a signed receipt. Fixed $2.50 USDC (2500000 atomic). GET/DELETE /v1/watch/{id} and GET /v1/watch/{id}/events with X-Livecheck-Owner-Token. No Playwright. Not /v1/check ($0.02) and not Confirm.
OtherLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 snapshots so far.
$3.59
Verified settled volume
24 settlements proven x402 by their on-chain EIP-3009 marker.
$2.50
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 2026-09-10 20:13Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x33693228b706cb30f4b4dbf35f79129a763f91c5The 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.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
2.5USDC≈ $2.5 USD
on Base · exact scheme
Pay 2.5 USDC on Base to 0x3369…f91c5. The signed payment is good for 5 minutes.
- Paid to
- 0x3369…f91c5
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2500000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x33693228b706cb30f4b4dbf35f79129a763f91c5",
"amount": "2500000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"target": {
"url": "https://boards.greenhouse.io/example/jobs/1842",
"type": "url",
"render": "never",
"selector": null
},
"callback": {
"url": "https://example.com/hooks/livecheck",
"secret": "whsec_example",
"deliver": "on_change"
},
"condition": {
"params": {},
"detector": "status_change"
},
"interval_s": 900
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": "wtc_01J8Z0K3N4P5Q6R7S8T9V0WWTC",
"run": "none",
"tier": "standard",
"status": "active",
"target": {
"url": "https://boards.greenhouse.io/example/jobs/1842",
"type": "url",
"render": "never",
"selector": null
},
"receipt": {
"hash": "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"verify_url": "https://livecheck.fly.dev/v1/receipt/wtc_01J8Z0K3N4P5Q6R7S8T9V0WWTC"
},
"baseline": {
"hash": "cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc",
"summary": "live 2xx (200); apply form present, no closure banner",
"captured": true
},
"condition": {
"params": {},
"detector": "status_change"
},
"price_usd": 2.5,
"expires_at": "2026-10-10T18:00:00Z",
"interval_s": 900,
"owner_token": "owt_01J8Z0K3N4P5Q6R7S8T9V0WOWT",
"next_check_at": "2026-09-10T18:15:00Z",
"first_check_at": "2026-09-10T18:00:00Z",
"checks_remaining": 2880
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"required": [
"target",
"condition",
"callback"
],
"properties": {
"label": {
"type": "string"
},
"target": {
"type": "object",
"description": "URL target. type=url, render=never. render=always is 400 render_not_available."
},
"context": {
"type": "object"
},
"callback": {
"type": "object",
"description": "url + secret. deliver=on_change or every_check. HMAC-SHA256 over the raw JSON body (X-Sentinel-Signature)."
},
"condition": {
"type": "object",
"description": "detector status_change or keyword. Same as POST /v1/check."
},
"interval_s": {
"type": "number",
"description": "Seconds between observations. Min 300, default 900."
},
"chain_budget_usd": {
"type": "number",
"description": "Accepted and ignored in Phase 2. run stays none."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"id",
"tier",
"owner_token",
"expires_at",
"checks_remaining",
"interval_s",
"first_check_at",
"baseline",
"price_usd",
"receipt"
],
"properties": {
"id": {
"type": "string",
"description": "Stable watcher id (wtc_ + ULID)."
},
"run": {
"enum": [
"none"
],
"type": "string"
},
"tier": {
"enum": [
"standard"
],
"type": "string"
},
"status": {
"enum": [
"active",
"stopped",
"expired"
],
"type": "string"
},
"target": {
"type": "object",
"required": [
"type",
"url",
"render"
],
"properties": {
"url": {
"type": "string"
},
"type": {
"enum": [
"url"
],
"type": "string"
},
"render": {
"enum": [
"never"
],
"type": "string"
},
"selector": {
"type": [
"string",
"null"
]
}
}
},
"receipt": {
"type": "object",
"required": [
"hash",
"verify_url"
],
"properties": {
"hash": {
"type": "string"
},
"signer": {
"type": "string"
},
"signature": {
"type": "string"
},
"verify_url": {
"type": "string"
}
}
},
"baseline": {
"type": "object",
"required": [
"captured"
],
"properties": {
"hash": {
"type": "string"
},
"summary": {
"type": "string"
},
"captured": {
"type": "boolean"
}
}
},
"condition": {
"type": "object",
"required": [
"detector"
],
"properties": {
"params": {
"type": "object"
},
"detector": {
"enum": [
"status_change",
"keyword"
],
"type": "string"
}
}
},
"price_usd": {
"type": "number"
},
"expires_at": {
"type": "string"
},
"interval_s": {
"type": "number"
},
"owner_token": {
"type": "string",
"description": "Returned once on create. Send as X-Livecheck-Owner-Token."
},
"next_check_at": {
"type": "string"
},
"first_check_at": {
"type": "string"
},
"checks_remaining": {
"type": "number"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-10 20:13Z
- Last indexed by Roundhouse
- 2026-09-24 08:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 20:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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. 14 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 livecheck.fly.dev 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=livecheck.fly.dev' 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://livecheck.fly.dev/v1/watch, 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.