SIGNL4 MCP by usefulapi

io.usefulapi由 usefulapi.io 發布官方發布者v1.23.5更新於 Nov 8, 2026

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

發布方自己的服務:Ably MCP by usefulapi

已驗證Streamable HTTP可網頁執行效率與工作流安全與監控

概覽

SIGNL4 MCP by usefulapi 的託管 MCP 服務(signl4.usefulapi.io),由 usefulapi.io 發布;無需登入;Streamable HTTP;18 個工具。

暫無 AI 概覽:以下資訊來自註冊中心條目和服務本身。

發布者
usefulapi.io
端點
signl4.usefulapi.io
最近檢查

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 SIGNL4 MCP by usefulapi,將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable,透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式,或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南,先向你展示發布者、端點和登入方式,經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/io.usefulapi%2Fsignl4/install.md,並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前,先告訴我它的發布者、端點和登入方式,等我確認。不要把 API 金鑰寫進命令或我會提交的檔案;問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "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.

來源: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.

輸入參數team_ids

signl4_get_team

Get team

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

輸入參數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.

無需輸入參數。

signl4_get_user

Get user

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

輸入參數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.

輸入參數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}.

輸入參數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).

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數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).

輸入參數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.

輸入參數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.

輸入參數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.

輸入參數tofromteam_idsmax_resultsmessage_containscontinuation_token

版本歷史

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

評分

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  • 圖示10 分
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