SIGNL4 MCP by usefulapi

io.usefulapi由 usefulapi.io 发布官方发布者v1.23.5更新于 Nov 8, 2026

Read SIGNL4 alerts, teams, users and duty schedules; raise, acknowledge, close and annotate alerts.

发布方自己的服务:Ably MCP by usefulapi

已验证Streamable HTTP可网页运行效率与工作流安全与监控

概览

AI 生成的概览

托管的 SIGNL4 服务器,让助手读取告警、团队、用户和值班安排,并可发起、确认、关闭或批注告警。

可以做什么
  • 列出并查看团队、用户、团队成员和告警类别
  • 搜索告警,查看告警详情、时间线和响应统计报告
  • 以用户名义发起、确认、关闭和批注告警
  • 查看值班排班、当前值班状态和值班摘要
  • 读取订阅的审计日志,了解变更与事件
  • 查看用量、提交功能请求、升级或取消付费方案
适用场景
适合让助手分诊并回答有关 SIGNL4 告警和值班覆盖的问题,或在聊天客户端中直接发起和处理告警,无需打开 SIGNL4 应用。
运行要求
远程 MCP 端点,仅需添加 URL,无需本地安装。通过 OAuth 登录,登录页要求填写你自己的 SIGNL4 凭据。不要在客户端配置中添加 Authorization 头或 API 密钥。免费方案每月 50 次工具调用,付费方案提高上限。
安装前请注意
发起告警会通过推送、短信或语音呼叫真正值班的人员,无人确认时还会升级,因此仅在用户明确要求时使用。确认、关闭和批注会写入告警历史并记在该 SIGNL4 用户名下。付费方案需要付费,通过 Stripe 结账链接订阅;取消后服务持续到付费期结束,当期不退款。

安装

在 SourceWeft 中

  1. 打开 控制台中的 SIGNL4 MCP by usefulapi,将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Web executable,通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体,或 SourceWeft 对话中。智能体会读取该服务器的安装指南,先向你展示发布者、端点和登录方式,经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/io.usefulapi%2Fsignl4/install.md,并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前,先告诉我它的发布者、端点和登录方式,等我确认。不要把 API 密钥写进命令或我会提交的文件;问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "mcpServers": {
    "signl4-by-usefulapi": {
      "type": "http",
      "url": "https://signl4.usefulapi.io/mcp"
    }
  }
}

README

SIGNL4 MCP by usefulapi

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

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://signl4.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http signl4 https://signl4.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
json
{  "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/

Tools

ToolTypeWhat it does
signl4_list_teamsreadList teams
signl4_get_teamreadGet team
signl4_list_usersreadList users
signl4_get_userreadGet user
signl4_list_team_usersreadList users of teams
signl4_list_categoriesreadList alert categories
signl4_list_alertsreadList alerts
signl4_get_alertreadGet alert
signl4_get_alert_timelinereadGet alert timeline
signl4_get_alert_reportreadGet alert report
signl4_raise_alertwriteRaise alert
signl4_acknowledge_alertwriteAcknowledge alert
signl4_close_alertwriteClose alert
signl4_annotate_alertwriteAnnotate alert
signl4_list_duty_schedulesreadList duty schedules
signl4_get_duty_statusreadGet user duty status
signl4_get_duty_summaryreadGet duty summary
signl4_list_audit_logsreadList audit logs
signl4_usage_statusmetaUsage status (free-tier meter)
signl4_request_featuremetaRequest a missing feature
signl4_upgrademetaUpgrade to Pro or Pro+
signl4_cancel_subscriptionmetaCancel 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.

Pricing

PlanPriceLimit
Free$050 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 [email protected].

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 [email protected].

License

MIT © usefulapi. Not affiliated with or endorsed by SIGNL4.

来源:servers/signl4/README.md,提交 4046075

工具

18

signl4_list_teams

List teams

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.

输入参数team_ids

signl4_get_team

Get team

One SIGNL4 team: name, description, time zone, member ids. GET /v3/teams/{teamId}.

输入参数team_id必填

signl4_list_users

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.

无需输入参数。

signl4_get_user

Get user

One SIGNL4 user: name, e-mail, contact addresses, time zone and duty status per team. GET /v3/users/{userId}.

输入参数user_id必填

signl4_list_team_users

List users of teams

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.

输入参数team_ids

signl4_list_categories

List alert categories

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}.

输入参数team_id必填

signl4_list_alerts

List alerts

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).

输入参数textstatusteam_idsexternal_idmax_resultscategory_idscreated_aftercreated_beforecontinuation_token

signl4_get_alert

Get alert

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.

输入参数alert_id必填

signl4_get_alert_timeline

Get alert timeline

The ordered timeline of an alert: creation, notifications, acknowledgements, annotations, escalations and remote actions. GET /v3/signls/{signlId}/timeline.

输入参数alert_id必填

signl4_get_alert_report

Get alert report

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.

输入参数user_idteam_ids

signl4_raise_alert

Raise alert

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.

输入参数text必填title必填team_id必填categoryseverityexternal_id

signl4_acknowledge_alert

Acknowledge alert

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.

输入参数commentuser_id必填alert_id必填

signl4_close_alert

Close alert

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.

输入参数commentuser_id必填alert_id必填

signl4_annotate_alert

Annotate alert

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.

输入参数text必填user_id必填alert_id必填

signl4_list_duty_schedules

List duty schedules

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).

输入参数tofromlimituser_idteam_ids

signl4_get_duty_status

Get user duty status

Whether a user is currently on or off duty in each of their teams (dutyMode, onDutyTime, tier). GET /v3/users/{userId}/dutyStatus.

输入参数user_id必填team_ids

signl4_get_duty_summary

Get duty summary

Duty assistant info per team: whether it is enabled and the last two (or all) duty periods. GET /v3/duties/summary.

输入参数team_idslast_two_only

signl4_list_audit_logs

List audit logs

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.

输入参数tofromteam_idsmax_resultsmessage_containscontinuation_token

版本历史

20
  1. v1.23.5最新Nov 8, 2026
  2. v1.23.4Nov 7, 2026
  3. v1.22.3Nov 5, 2026
  4. v1.22.2Nov 5, 2026
  5. v1.22.1Nov 4, 2026
  6. v1.22.0Nov 3, 2026
  7. v1.21.1Nov 3, 2026
  8. v1.20.0Nov 1, 2026
  9. v1.18.0Oct 31, 2026
  10. v1.17.0Oct 31, 2026
  11. v1.16.2Oct 30, 2026
  12. v1.16.0Oct 30, 2026
  13. v1.11.0Oct 26, 2026
  14. v1.8.3Oct 25, 2026
  15. v1.8.0Oct 25, 2026
  16. v1.7.0Oct 24, 2026
  17. v1.4.0Oct 23, 2026
  18. v1.3.4Oct 22, 2026
  19. v1.3.3Oct 21, 2026
  20. v1.0.0Oct 12, 2026

评分

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  • 描述必需15 分
  • 图标10 分
  • 文档15 分
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