Schedule & Timezone Tools
Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with explicit daylight-saving (DST) policies.
OtherLiveeip155:8453Exactvia cdp
Cron-nextCron-scheduleIana-timezoneDstScheduling
Calls · 30d
3↑ 31%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$24.30
Verified settled volume
1,036 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-15 06:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2The 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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x8C12…Df1b2. The signed payment is good for 5 minutes.
- Paid to
- 0x8C12…Df1b2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
5000units
on Polygon · 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
- 0x8C12…Df1b2
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
5000units
on Arbitrum · 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
- 0x8C12…Df1b2
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"after": "2024-03-28T12:00:00Z",
"count": 5,
"timezone": "Europe/London",
"expression": "0 9 * * 1-5",
"ambiguous_time": "reject",
"nonexistent_time": "shift_forward"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"after": "2024-03-28T12:00:00Z",
"count": 5,
"timezone": "Europe/London",
"warnings": [],
"operation": "cron-next",
"expression": "0 9 * * 1-5",
"occurrences": [
{
"utc": "2024-03-29T09:00:00Z",
"local": {
"timezone": "Europe/London",
"local_time": "2024-03-29T09:00:00+00:00",
"abbreviation": "GMT",
"offset_seconds": 0
}
},
{
"utc": "2024-04-01T08:00:00Z",
"local": {
"timezone": "Europe/London",
"local_time": "2024-04-01T09:00:00+01:00",
"abbreviation": "BST",
"offset_seconds": 3600
}
},
{
"utc": "2024-04-02T08:00:00Z",
"local": {
"timezone": "Europe/London",
"local_time": "2024-04-02T09:00:00+01:00",
"abbreviation": "BST",
"offset_seconds": 3600
}
},
{
"utc": "2024-04-03T08:00:00Z",
"local": {
"timezone": "Europe/London",
"local_time": "2024-04-03T09:00:00+01:00",
"abbreviation": "BST",
"offset_seconds": 3600
}
},
{
"utc": "2024-04-04T08:00:00Z",
"local": {
"timezone": "Europe/London",
"local_time": "2024-04-04T09:00:00+01:00",
"abbreviation": "BST",
"offset_seconds": 3600
}
}
],
"tzdata_source": "bridge-embedded",
"ambiguous_time": "reject",
"nonexistent_time": "shift_forward",
"algorithm_version": "schedule-v1",
"iana_tzdata_version": "2026a",
"go_toolchain_version": "go1.26.3",
"candidate_minutes_checked": 11460
}
}
},
"tags": [
"cron-next",
"cron-schedule",
"iana-timezone",
"dst",
"scheduling"
],
"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": {
"type": "object",
"required": [
"expression",
"timezone",
"after",
"count",
"ambiguous_time",
"nonexistent_time"
],
"properties": {
"after": {
"type": "string",
"format": "date-time",
"description": "Exclusive RFC3339 whole-second instant"
},
"count": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "Number of future occurrences to return"
},
"timezone": {
"type": "string",
"maxLength": 128,
"minLength": 3,
"description": "UTC or IANA area/location name"
},
"expression": {
"type": "string",
"maxLength": 256,
"minLength": 9,
"description": "Five numeric POSIX fields; supports *, lists, ranges, and steps; */n retains wildcard DOM/DOW semantics and x/n expands through the field maximum"
},
"ambiguous_time": {
"enum": [
"earlier",
"later",
"reject"
],
"type": "string",
"description": "Policy for a repeated generated civil minute"
},
"nonexistent_time": {
"enum": [
"reject",
"shift_forward"
],
"type": "string",
"description": "Policy for a skipped generated civil minute"
}
},
"additionalProperties": false
},
"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": [
"operation",
"algorithm_version",
"tzdata_source",
"go_toolchain_version",
"iana_tzdata_version",
"expression",
"timezone",
"after",
"count",
"ambiguous_time",
"nonexistent_time",
"candidate_minutes_checked",
"occurrences",
"warnings"
],
"properties": {
"after": {
"type": "string",
"format": "date-time",
"description": "Normalized exclusive lower-bound UTC instant"
},
"count": {
"type": "integer",
"maximum": 100,
"minimum": 1,
"description": "Requested and returned occurrence count"
},
"_atlas": {
"type": "object",
"required": [
"docs"
],
"properties": {
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Documentation URL for this bridge"
},
"related": {
"type": "array",
"items": {
"type": "object",
"required": [
"bridge",
"url",
"docs",
"summary"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related route URL"
},
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related bridge documentation URL"
},
"bridge": {
"type": "string",
"maxLength": 64,
"description": "Related bridge name"
},
"summary": {
"type": "string",
"maxLength": 256,
"description": "Short capability summary"
}
},
"description": "One related Atlas route",
"additionalProperties": false
},
"maxItems": 3,
"description": "Bounded related Atlas routes"
}
},
"description": "Atlas documentation and related-route metadata added after deployment",
"additionalProperties": false
},
"timezone": {
"type": "string",
"description": "IANA timezone used for civil matching"
},
"warnings": {
"type": "array",
"items": {
"type": "string",
"description": "Warning"
},
"maxItems": 100,
"description": "Distinct DST gap shift warnings; [] when no shift occurred"
},
"operation": {
"type": "string",
"const": "cron-next",
"description": "Stable route operation"
},
"expression": {
"type": "string",
"description": "Normalized five-field cron expression"
},
"occurrences": {
"type": "array",
"items": {
"type": "object",
"required": [
"utc",
"local"
],
"properties": {
"utc": {
"type": "string",
"format": "date-time",
"description": "UTC instant"
},
"local": {
"type": "object",
"required": [
"local_time",
"timezone",
"offset_seconds",
"abbreviation"
],
"properties": {
"timezone": {
"type": "string",
"description": "IANA timezone"
},
"local_time": {
"type": "string",
"format": "date-time",
"description": "RFC3339 local form with numeric offset"
},
"abbreviation": {
"type": "string",
"description": "Display-only abbreviation"
},
"offset_seconds": {
"type": "integer",
"maximum": 86400,
"minimum": -86400,
"description": "UTC offset seconds"
}
},
"description": "Localized representation",
"additionalProperties": false
}
},
"description": "One resolved scheduled occurrence",
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1,
"description": "Requested occurrences in ascending instant order"
},
"tzdata_source": {
"type": "string",
"const": "bridge-embedded",
"description": "Timezone data source"
},
"ambiguous_time": {
"enum": [
"earlier",
"later",
"reject"
],
"type": "string",
"description": "Applied DST-fold policy"
},
"nonexistent_time": {
"enum": [
"reject",
"shift_forward"
],
"type": "string",
"description": "Applied DST-gap policy"
},
"algorithm_version": {
"type": "string",
"const": "schedule-v1",
"description": "Pinned POSIX cron and timezone-resolution contract"
},
"iana_tzdata_version": {
"type": "string",
"const": "2026a",
"description": "Reviewed IANA timezone release"
},
"go_toolchain_version": {
"type": "string",
"const": "go1.26.3",
"description": "Reviewed Go toolchain"
},
"candidate_minutes_checked": {
"type": "integer",
"maximum": 2000000,
"minimum": 1,
"description": "Civil candidate minutes checked before producing the result"
}
},
"additionalProperties": false
}
}
}
}
},
"category": "calendar"
}
}Provenance
- Seen in the source catalog
- 2026-09-15 06:32Z
- Last indexed by Roundhouse
- 2026-09-24 08:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 13:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 405
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. 30 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 Schedule & Timezone Tools 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=Schedule%20%26%20Timezone%20Tools' 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://schedule-tools.use.x402atlas.com/cron-next, 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.