Dead-man's-switch for cron jobs & AI agents. Import a crontab to arm one silent-miss alert per job.
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https://cronping.cronping-oren.workers.dev/mcp7 tools · 85mscreate_heartbeatCreate a Cronping heartbeat monitor (dead-man's-switch). Returns a ping_url to call on each successful run of your agent loop, worker, or cron job, plus a claim_token to manage it. If pings stop arriving within period+grace, Cronping raises an alert. No account required. After creating, send one ve…Create a Cronping heartbeat monitor (dead-man's-switch). Returns a ping_url to call on each successful run of your agent loop, worker, or cron job, plus a claim_token to manage it. If pings stop arriving within period+grace, Cronping raises an alert. No account required. After creating, send one ve…
| Parameter | Type | Description |
|---|---|---|
| name* | string | Label for what is monitored, e.g. "nightly-backup" or "research-agent-loop". |
| period_seconds | number | How often you expect a ping, in seconds (min 60). Default 86400 (daily). |
| grace_seconds | number | Extra slack before marking DOWN, in seconds. Default 3600. |
| string | Email address for DOWN and recovery alerts. STRONGLY RECOMMENDED — without an email or webhook_url, Cronping tracks status but cannot notify anyone when the jo… | |
| webhook_url | string | https webhook (Slack/Discord/generic) for DOWN and recovery alerts. Set this OR email so someone is actually notified when the monitored job goes silent. |
| stuck_after | number | Optional. Flip to STUCK if the progress_token passed to ping_heartbeat stays identical for this many consecutive runs (default 3, 0 disables). Catches zombie r… |
| pull_url | string | Optional. If set, creates a PULL check instead: Cronping itself fetches this URL every period_seconds and alerts if it fails — use for a target that can't call… |
| pull_contains | string | Optional (pull checks only). The fetched response body must contain this text to count as UP; otherwise Cronping alerts. |
ping_heartbeatSend a heartbeat signal to a Cronping check. signal="success" (default) marks it UP and resets the timer; "start" records that a run began (for duration); "fail" marks it DOWN immediately and alerts. Optionally pass progress_token (a digest of your run's actual output) on success pings: if the same…Send a heartbeat signal to a Cronping check. signal="success" (default) marks it UP and resets the timer; "start" records that a run began (for duration); "fail" marks it DOWN immediately and alerts. Optionally pass progress_token (a digest of your run's actual output) on success pings: if the same…
| Parameter | Type | Description |
|---|---|---|
| id* | string | The check id returned by create_heartbeat. |
| signal | string | success | start | fail. Default success. |
| progress_token | string | Optional. A short digest/hash of this run's output (e.g. last-processed id, row count, content hash). If it stays identical across stuck_after consecutive runs… |
get_heartbeat_statusGet the live status of a Cronping check (up/down/new, last ping time, ping count, and whether an alert channel is set).Get the live status of a Cronping check (up/down/new, last ping time, ping count, and whether an alert channel is set).
| Parameter | Type | Description |
|---|---|---|
| id* | string | — |
| claim_token* | string | The claim_token returned by create_heartbeat. |
set_heartbeat_alertAdd or change the alert channel on an EXISTING Cronping check (use this instead of creating a duplicate). Sets the email and/or webhook (Slack/Discord/generic https) that Cronping notifies when the monitor goes silent or recovers. Without an alert channel a check tracks status but can't warn you —…Add or change the alert channel on an EXISTING Cronping check (use this instead of creating a duplicate). Sets the email and/or webhook (Slack/Discord/generic https) that Cronping notifies when the monitor goes silent or recovers. Without an alert channel a check tracks status but can't warn you —…
| Parameter | Type | Description |
|---|---|---|
| id* | string | The check id returned by create_heartbeat. |
| claim_token* | string | The claim_token returned by create_heartbeat. |
| string | Email address to notify (e.g. the operator/owner). Pass empty string to clear. | |
| webhook_url | string | Optional https webhook (Slack/Discord/generic) to notify. Pass empty string to clear. |
import_crontabArm a dead-man's-switch for EVERY line of a crontab in one call. Paste raw crontab text; Cronping parses each schedule, derives the expected interval from the cron expression itself (using the longest gap between runs so weekend/twice-daily schedules don't false-alarm), and creates one heartbeat mo…Arm a dead-man's-switch for EVERY line of a crontab in one call. Paste raw crontab text; Cronping parses each schedule, derives the expected interval from the cron expression itself (using the longest gap between runs so weekend/twice-daily schedules don't false-alarm), and creates one heartbeat mo…
| Parameter | Type | Description |
|---|---|---|
| crontab* | string | Raw crontab text, one job per line (comments and FOO=bar env lines are ignored). Standard 5-field expressions plus @daily/@hourly/@weekly/@monthly/@yearly macr… |
| string | Optional. Email address for DOWN and recovery alerts, applied to every check created. STRONGLY RECOMMENDED — without it the checks track status but cannot noti… |
delete_heartbeatprivilegedPermanently delete a Cronping heartbeat monitor and all its events. Use this to tear down an ephemeral check your agent created (e.g. at shutdown, or after a one-off job) so it stops being monitored and can never raise a stale DOWN alert. Requires the claim_token returned by create_heartbeat. This…Permanently delete a Cronping heartbeat monitor and all its events. Use this to tear down an ephemeral check your agent created (e.g. at shutdown, or after a one-off job) so it stops being monitored and can never raise a stale DOWN alert. Requires the claim_token returned by create_heartbeat. This…
| Parameter | Type | Description |
|---|---|---|
| id* | string | The check id returned by create_heartbeat. |
| claim_token* | string | The claim_token returned by create_heartbeat. |
pause_heartbeatPause or resume monitoring on an existing Cronping check without deleting it. Pause during planned maintenance or a known downtime window so a silent job does not raise a false DOWN alert; resume to re-arm the dead-man's-switch. While paused, missed pings are ignored and no alerts fire. Requires th…Pause or resume monitoring on an existing Cronping check without deleting it. Pause during planned maintenance or a known downtime window so a silent job does not raise a false DOWN alert; resume to re-arm the dead-man's-switch. While paused, missed pings are ignored and no alerts fire. Requires th…
| Parameter | Type | Description |
|---|---|---|
| id* | string | The check id returned by create_heartbeat. |
| claim_token* | string | The claim_token returned by create_heartbeat. |
| paused | boolean | true to pause monitoring, false to resume it. Defaults to true. |
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Dead-man's-switch for cron jobs & AI agents. Import a crontab to arm one silent-miss alert per job.
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