clockin MCP server

Read employees, absences, projects and work days; create absences and time events in clockin. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect clockinFree 50 calls/mo

What can I ask?

Turn on the clockin connector, then ask in plain words. The AI picks the tools.

Which employees are on absence next week?
How many hours did each employee book on project 14 last month?
Create a vacation absence for employee 12 from 2 to 6 December, granted.
List our open projects with their assigned employees.

What you can do with clockin in Claude and ChatGPT

For HR staff and managers of German small and medium businesses that track time with clockin.

See who is on absence in the coming weeks

Search absences by start date, then open one to see its details. Read the employee record to find out who is away.

Review absence requests waiting for approval

Search absences by approval state to list the requests still pending. Read the employee record for each request.

Add up project hours for a month

Get the work days of employees for a date range. Sum the activities by project id to get the hours for each project, then read the project for its name.

List open projects with their assigned staff

List the projects with their assigned employees and sub-projects. Open one project to read its details.

Book a vacation or workshop absence

Find the employee by last name, then create an absence with a category set up in clockin, such as vacation or workshop. Set the approval to granted, denied or pending.

Changes data

Record a back-dated start of work

Find the employee by last name, then record a clock event such as a back-dated start of work. The task id sets the event type, for example working time or pause.

Changes data

How do I connect clockin?

Before you connect

The login page asks for your clockin API token.

Create it in clockin → Einstellungen → Schnittstellen → clockin API (an admin generates the key). Read tokens list data; write tools (absences, time events) need a token with write permission. Your token is used only to call the API on your behalf and to derive a private account id.

Claude claude.ai · Desktop

Open Customize → Connectors, then click + Add → Add custom connector.
Enter the name clockin and this URL, then click Add:
https://clockin.usefulapi.io/mcp
Claude opens the login page: enter your clockin API token.
In a chat, click + → Connectors and turn on clockin.

Team and Enterprise: an Owner adds the connector for the organization first.

ChatGPT chatgpt.com

Open Plugins, click +, then Add custom MCP server.
Enter the name clockin and this URL, choose OAuth as the authentication, confirm the warning and create it:
https://clockin.usefulapi.io/mcp
ChatGPT opens the login page: enter your clockin API token.
In Plugins, install clockin, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http clockin https://clockin.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "clockin": {
      "url": "https://clockin.usefulapi.io/mcp"
    }
  }
}

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "clockin": {
      "type": "http",
      "url": "https://clockin.usefulapi.io/mcp"
    }
  }
}

Codex

Run these commands. The second one opens the login page:

codex mcp add clockin --url https://clockin.usefulapi.io/mcp

codex mcp login clockin

Other clients

Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.

https://clockin.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: the login page asks for your clockin API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Proper user	$9/mo · $90/yr	10,000 tool calls / month
Pro+per user	$39/mo · $390/yr	100,000 tool calls / month

Each paid plan covers this clockin server only. Ask your AI to run clockin_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with clockin_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with clockin_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

Tools 17

Show all 17 tools (the AI picks them for you)

Read only · 11

List employeesclockin_list_employees
List employees of the company, paged. Returns id, names, email and related data. Use the ids with the other tools.
Get an employeeclockin_get_employee
Get one employee by id.
Search employees by last nameclockin_search_employees
Find employees whose last name matches exactly. Customer API: POST /v3/employees/search with scope byLastName.
List customersclockin_list_customers
List customers of the company, paged.
Get a customerclockin_get_customer
Get one customer by id.
List absencesclockin_list_absences
List absences (vacation, sick days, workshops and similar), paged.
Search absencesclockin_search_absences
Find absences by start time (from this date-time on) and/or approval state. Pass at least one filter. Customer API: POST /v3/absences/search with scopes byStartsAt and byApprovals.
Get an absenceclockin_get_absence
Get one absence by id.
List projectsclockin_list_projects
List projects, paged. Use include=employees,subProjects for the assigned staff and sub-projects.
Get a projectclockin_get_project
Get one project by id.
Search workdaysclockin_search_workdays
Get the work days of employees for a date range. Each day lists its activities (start, end, project_id) and events. Sum activities by project_id for project hours.

Changes data · 2

Create an absenceclockin_create_absence
WRITE: create an absence for one employee. absencecategory_name must match an absence category set up in clockin (for example workshop). approval is denied, granted or pending.
Create a time eventclockin_create_event
WRITE: record a clock event for one employee, for example a back-dated start of work. task_id: 2 LOADING_TIME, 3 DRIVING_TIME, 4 PROJECT, 5 PAUSE, 6 SPECIAL_1, 7 SPECIAL_2, 8 LOGOUT, 9 BUSINESS_TRIP, 10 WORKING_TIME.

Your usefulapi plan · 4

Usage status (free-tier meter)clockin_usage_status
Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
Request a missing featureclockin_request_feature
Tell usefulapi that the user needs something the clockin tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
Upgrade to Pro or Pro+clockin_upgrade
Get a paid plan for clockin (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter.
Cancel the Pro subscriptionclockin_cancel_subscription
Cancel the caller's clockin Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run clockin_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with clockin in Claude or ChatGPT?

See who is on absence in the coming weeks. Review absence requests waiting for approval. Add up project hours for a month. List open projects with their assigned staff. Book a vacation or workshop absence. Record a back-dated start of work. See what you can do for the details.

Is this an official clockin product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by clockin. The server calls the clockin API with your own clockin access, so it sees only the data that your account can see.

Can I connect clockin to Claude or ChatGPT?

Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.

What do I need to connect?

The login page asks for your clockin API token. See Before you connect for where to find it.

Do I put my clockin key or an Authorization header in the client config?

No. 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: the login page asks for your clockin API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

How do you keep my clockin credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the clockin API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in clockin.

Can the AI change my clockin data?

Yes, if you approve it. 2 of the 13 clockin tools can create or change data. The other 11 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.

What does it cost?

The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this clockin server only. Cancel any time: your paid plan then runs to the end of the paid period. Run clockin_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run clockin_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run clockin_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a clockin tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with clockin_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.

Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.

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