SIGNL4 MCP by usefulapi
Read SIGNL4 alerts, teams, users and duty schedules; raise, acknowledge, close and annotate alerts.
Sollte ich dies verwenden
Qualität und Sicherheit
Befunde (2)
- HIGHTool poisoning patterns detected
- LOWTool description contains role marker that could confuse chat modelsin signl4_get_user
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"signl4": {
"url": "https://signl4.usefulapi.io/mcp"
}
}
}Remote-Endpunkte
https://signl4.usefulapi.io/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (18)
🟢signl4_list_teams(team_ids)
List the SIGNL4 teams the API key can access: id, name, description, time zone and member ids. Team ids are needed to raise alerts and to look up categories and duties. GET /v3/teams.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_team(team_id)
One SIGNL4 team: name, description, time zone, member ids. GET /v3/teams/{teamId}.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"required": [
"team_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_users
List the SIGNL4 users the key can access with name, e-mail, contact addresses, activation state and duty status per team (dutyMode, onDutyTime). User ids are needed to acknowledge/close/annotate alerts. GET /v3/users.
Eingabe-Schema
{
"type": "object",
"properties": {},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_user(user_id)
One SIGNL4 user: name, e-mail, contact addresses, time zone and duty status per team. GET /v3/users/{userId}.
Eingabe-Schema
{
"type": "object",
"properties": {
"user_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 user id (a GUID); get it from signl4_list_users."
}
},
"required": [
"user_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_team_users(team_ids)
List the users of the given teams (all accessible teams by default) with duty status. Teams that cannot be read are reported under `errors`. GET /v3/teams/users.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_categories(team_id)
List the alert categories of a team (name, color, keywords used to auto-classify alerts). The category name can be passed to signl4_raise_alert. GET /v3/categories/{teamId}.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"required": [
"team_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_alerts(team_ids, status, created_after, created_before, text, ...)
Search SIGNL4 alerts (signls), newest first, with status, severity, category and history (created, acknowledged, closed). Filter by team, status, creation time, text or external id. Up to 100 per page; pass the returned continuation_token to get the next page. POST /v3/signls/paged (a read).
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"status": {
"description": "Only alerts in this state (default: all).",
"type": "string",
"enum": [
"open",
"acknowledged",
"closed"
]
},
"created_after": {
"type": "string",
"description": "ISO 8601 date-time with a timezone, e.g. 2026-10-01T00:00:00Z."
},
"created_before": {
"type": "string",
"description": "ISO 8601 date-time with a timezone, e.g. 2026-10-01T00:00:00Z."
},
"text": {
"description": "Free-text search in title and text.",
"type": "string",
"maxLength": 200
},
"external_id": {
"description": "Only alerts raised with this external id.",
"type": "string",
"maxLength": 200
},
"category_ids": {
"description": "Only alerts of these category ids (see signl4_list_categories).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "A SIGNL4 id (a GUID)."
}
},
"max_results": {
"description": "Alerts per page, 1-100 (default 25).",
"type": "integer",
"minimum": 1,
"maximum": 100
},
"continuation_token": {
"description": "The continuation_token of the previous page.",
"type": "string",
"maxLength": 4000
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_alert(alert_id)
Full detail of one alert: title, text, severity, category, status and delivery status, history (who acknowledged/closed it and when), parameters, attachments and escalations with per-user delivery. GET /v3/signls/{signlId}/details.
Eingabe-Schema
{
"type": "object",
"properties": {
"alert_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Alert (signl) id; get it from signl4_list_alerts or the id returned by signl4_raise_alert."
}
},
"required": [
"alert_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_alert_timeline(alert_id)
The ordered timeline of an alert: creation, notifications, acknowledgements, annotations, escalations and remote actions. GET /v3/signls/{signlId}/timeline.
Eingabe-Schema
{
"type": "object",
"properties": {
"alert_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Alert (signl) id; get it from signl4_list_alerts or the id returned by signl4_raise_alert."
}
},
"required": [
"alert_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_alert_report(team_ids, user_id)
Alert volume and response statistics per team over several time periods: acknowledged, closed and unhandled counts, overall and per category (optionally for one user). Teams that cannot be read are reported under `errors`. GET /v3/signls/report.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"user_id": {
"description": "Report for this user only.",
"type": "string",
"minLength": 1,
"maxLength": 100
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🔴signl4_raise_alert(team_id, title, text, severity, category, ...)
WRITE: raise a new alert in a SIGNL4 team. THIS NOTIFIES REAL PEOPLE: every team member currently on duty is paged (push, SMS and/or voice call according to their settings) and the alert escalates if nobody acknowledges it. Only use it when the user clearly asked to alert the team; never for tests unless they said so. Not idempotent: a second call pages the team again. Returns the new alert incl. its id. POST /v3/signls.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
},
"title": {
"type": "string",
"minLength": 1,
"maxLength": 500,
"description": "Alert title, shown on the pager screen."
},
"text": {
"type": "string",
"minLength": 1,
"maxLength": 8000,
"description": "Alert message body."
},
"severity": {
"description": "Severity (default: SIGNL4's default for the team).",
"type": "string",
"enum": [
"low",
"major",
"critical"
]
},
"category": {
"description": "Category name, see signl4_list_categories (default: automatic).",
"type": "string",
"maxLength": 200
},
"external_id": {
"description": "Your own reference for this alert, for later look-up (and for SIGNL4 to group follow-ups).",
"type": "string",
"maxLength": 200
}
},
"required": [
"team_id",
"title",
"text"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🔴signl4_acknowledge_alert(alert_id, user_id, comment)
WRITE: acknowledge an alert on behalf of a SIGNL4 user (recorded in its history under that user). Stops escalation to further tiers for that alert. POST /v3/signls/{signlId}/acknowledge.
Eingabe-Schema
{
"type": "object",
"properties": {
"alert_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Alert (signl) id; get it from signl4_list_alerts or the id returned by signl4_raise_alert."
},
"user_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "The SIGNL4 user the acknowledgement is recorded for; see signl4_list_users."
},
"comment": {
"description": "Optional comment stored with the acknowledgement.",
"type": "string",
"maxLength": 2000
}
},
"required": [
"alert_id",
"user_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🔴signl4_close_alert(alert_id, user_id, comment)
WRITE: close (resolve) an alert on behalf of a SIGNL4 user; it leaves the open list and stops all further notifications. POST /v3/signls/{signlId}/close.
Eingabe-Schema
{
"type": "object",
"properties": {
"alert_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Alert (signl) id; get it from signl4_list_alerts or the id returned by signl4_raise_alert."
},
"user_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "The SIGNL4 user the closure is recorded for; see signl4_list_users."
},
"comment": {
"description": "Optional comment stored with the closure.",
"type": "string",
"maxLength": 2000
}
},
"required": [
"alert_id",
"user_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🔴signl4_annotate_alert(alert_id, user_id, text)
WRITE: add a text note to an alert's timeline on behalf of a SIGNL4 user. The note is visible to the team in the app. It does not page anyone by itself. POST /v3/signls/{signlId}/annotate.
Eingabe-Schema
{
"type": "object",
"properties": {
"alert_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Alert (signl) id; get it from signl4_list_alerts or the id returned by signl4_raise_alert."
},
"user_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "The SIGNL4 user the note is recorded for; see signl4_list_users."
},
"text": {
"type": "string",
"minLength": 1,
"maxLength": 4000,
"description": "The note."
}
},
"required": [
"alert_id",
"user_id",
"text"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_duty_schedules(team_ids, user_id, from, to, limit)
Planned on-call duty schedules (who is on duty when): start/end, team, user, tier, stand-in and shift info. Filter by team, user and time window. POST /v3/schedules (a read).
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"user_id": {
"description": "Only this user's duties.",
"type": "string",
"minLength": 1,
"maxLength": 100
},
"from": {
"description": "Start of the window, ISO 8601 with timezone.",
"type": "string"
},
"to": {
"description": "End of the window, ISO 8601 with timezone.",
"type": "string"
},
"limit": {
"description": "Maximum schedules to return, 1-500 (default 100).",
"type": "integer",
"minimum": 1,
"maximum": 500
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_duty_status(user_id, team_ids)
Whether a user is currently on or off duty in each of their teams (dutyMode, onDutyTime, tier). GET /v3/users/{userId}/dutyStatus.
Eingabe-Schema
{
"type": "object",
"properties": {
"user_id": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 user id (a GUID); get it from signl4_list_users."
},
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
}
},
"required": [
"user_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_get_duty_summary(team_ids, last_two_only)
Duty assistant info per team: whether it is enabled and the last two (or all) duty periods. GET /v3/duties/summary.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"last_two_only": {
"description": "Only the last two duties (default true).",
"type": "boolean"
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}🟢signl4_list_audit_logs(team_ids, from, to, message_contains, max_results, ...)
Audit log of changes and events in the SIGNL4 subscription (who changed what, when). Filter by team, time window and message text; pass the returned continuation_token for the next page. GET /v3/audits.
Eingabe-Schema
{
"type": "object",
"properties": {
"team_ids": {
"description": "Limit to these team ids (default: all teams the key can access).",
"maxItems": 50,
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "SIGNL4 team id (a GUID); get it from signl4_list_teams."
}
},
"from": {
"type": "string",
"description": "ISO 8601 date-time with a timezone, e.g. 2026-10-01T00:00:00Z."
},
"to": {
"type": "string",
"description": "ISO 8601 date-time with a timezone, e.g. 2026-10-01T00:00:00Z."
},
"message_contains": {
"description": "Only entries whose message contains this text.",
"type": "string",
"maxLength": 200
},
"max_results": {
"description": "Entries per page, 1-200 (default 50).",
"type": "integer",
"minimum": 1,
"maximum": 200
},
"continuation_token": {
"description": "The continuation_token of the previous page.",
"type": "string",
"maxLength": 4000
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema"
}Community
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