Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Descripción del creador (original en inglés)
Read SIGNL4 alerts, teams, users and duty schedules; raise, acknowledge, close and annotate alerts.
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
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Funciona en Claude para web, escritorio y móvil:
https://signl4.usefulapi.io/mcpEjecuta esto en tu terminal
claude mcp add --transport http signl4 https://signl4.usefulapi.io/mcpPégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"signl4": {
"url": "https://signl4.usefulapi.io/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"signl4": {
"type": "http",
"url": "https://signl4.usefulapi.io/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
ChatGPT solo se conecta a servidores en internet:
https://signl4.usefulapi.io/mcpLos nombres de los menús pueden variar un poco según el plan y con el tiempo.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Nombres y descripciones de las herramientas tal como los informó el servidor el 6 nov 2026. Los escribió el creador, no nosotros; los mostramos como texto sin formato.
signl4_list_teamsList 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.
signl4_get_teamOne SIGNL4 team: name, description, time zone, member ids. GET /v3/teams/{teamId}.
signl4_list_usersList 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.
signl4_get_userOne SIGNL4 user: name, e-mail, contact addresses, time zone and duty status per team. GET /v3/users/{userId}.
signl4_list_team_usersList 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.
signl4_list_categoriesList 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}.
signl4_list_alertsSearch 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/pag
signl4_get_alertFull 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.
signl4_get_alert_timelineThe ordered timeline of an alert: creation, notifications, acknowledgements, annotations, escalations and remote actions. GET /v3/signls/{signlId}/timeline.
signl4_get_alert_reportAlert 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.
signl4_raise_alertWRITE: 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 tea
signl4_acknowledge_alertWRITE: 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.
signl4_close_alertWRITE: 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.
signl4_annotate_alertWRITE: 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.
signl4_list_duty_schedulesPlanned 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).
signl4_get_duty_statusWhether a user is currently on or off duty in each of their teams (dutyMode, onDutyTime, tier). GET /v3/users/{userId}/dutyStatus.
signl4_get_duty_summaryDuty assistant info per team: whether it is enabled and the last two (or all) duty periods. GET /v3/duties/summary.
signl4_list_audit_logsAudit 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.
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 6 nov 2026
El nombre en el registro se verificó con el dominio usefulapi.io (el registro comprueba quién es dueño del dominio)
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Respondió en 19 ms (HTTP 200)
No hace falta iniciar sesión
Leímos 18 descripciones de herramientas y no encontramos instrucciones ocultas para la IA
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 3 de 3 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
El registro no indica ninguna clave obligatoria, aunque algunos servidores te piden iniciar sesión la primera vez que los usas.
Se ejecuta en la nube del creador. Te conectas por internet sin instalar nada, pero lo que envías pasa por los servidores del creador.
El repo de GitHub cambió por última vez –, y la última versión (1.22.4) llegó al registro hoy.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. Se conecta por URL, así que también funcionan las apps que aceptan servidores MCP remotos, como ChatGPT en modo desarrollador.
En la misma categoría: Spec Driven Development, Remote Desktop Commander, zanadir
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Find what a repository's CI is missing, and which security checks cannot fail the build.
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
Use SIGNL4 from Claude, Cursor, or any MCP client — alerts, teams, users, categories and duty schedules, plus raising and handling alerts. Hosted, no local install: connect with your own SIGNL4 credentials.
Live endpoint: https://signl4.usefulapi.io/mcp · Homepage: https://usefulapi.io/signl4
https://signl4.usefulapi.io/mcp.claude mcp add --transport http signl4 https://signl4.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "signl4": { "url": "https://signl4.usefulapi.io/mcp" } } }
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your SIGNL4 credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/signl4/
| Tool | Type | What it does |
|---|---|---|
signl4_list_teams | read | List teams |
signl4_get_team | read | Get team |
signl4_list_users | read | List users |
signl4_get_user | read | Get user |
signl4_list_team_users | read | List users of teams |
signl4_list_categories | read | List alert categories |
signl4_list_alerts | read | List alerts |
signl4_get_alert | read | Get alert |
signl4_get_alert_timeline | read | Get alert timeline |
signl4_get_alert_report | read | Get alert report |
signl4_raise_alert | write | Raise alert |
signl4_acknowledge_alert | write | Acknowledge alert |
signl4_close_alert | write | Close alert |
signl4_annotate_alert | write | Annotate alert |
signl4_list_duty_schedules | read | List duty schedules |
signl4_get_duty_status | read | Get user duty status |
signl4_get_duty_summary | read | Get duty summary |
signl4_list_audit_logs | read | List audit logs |
signl4_usage_status | meta | Usage status (free-tier meter) |
signl4_request_feature | meta | Request a missing feature |
signl4_upgrade | meta | Upgrade to Pro or Pro+ |
signl4_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per account) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this server only. Subscribe with signl4_upgrade (it returns a Stripe Checkout link). Cancel any time with signl4_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running signl4_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
MIT © usefulapi. Not affiliated with or endorsed by SIGNL4.