workload.zero MCP Server

by workloadzero Your server? Claim it

answering

workload.zero is answering right now. Last checked 11 min ago. It exposes 151 tools. Last commit 4 Nov 2026.

Back office, projects, hiring and CRM in one suite. Claude's work stays a draft until you approve.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

151

Tools

read from the server

161 ms

Response time

average over 24h

Stars

last commit 4 Nov 2026

What changed 17

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 November 2026. No other catalogue keeps this.

5 Nov 6 tools changed the parameters they ask for8 times that day create_billing_entity, create_invoice, create_quote and 3 more

5 Nov 6 tool descriptions were rewritten7 times that day create_billing_entity, create_invoice, create_quote and 3 more

5 Nov 2 tools appeared create_billing_entity, update_billing_entity

and 3 more, back to 5 November 2026

Nothing serious here today

Today is the operative word: we check workload.zero every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://mcp.workloadzero.de/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.workloadzero.de/mcp

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://mcp.workloadzero.de/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.workloadzero.de/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://mcp.workloadzero.de/mcp"
    }
  }
}

Available tools 151

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

task

add_task_comment

Add a comment to a task, optionally with images (each from an https URL or base64). Images are stored in the project files under tasks/<task number>/.

add_task_link

Add a link to a task, e.g. the pull request, Figma frame or Jira ticket.

create_task

Create a task (shown in workload.zero as created by an agent). Example: projectId from list_projects, title "Fix login redirect", priority "high", assignedTo [user or team member id], deadline {startDateTime: "2026-11-10T09:00:00Z", endDateTime: "2026-11-14T17:00:00Z"}, maxHours 6.

delete_task

Delete a task (admin, project manager or project lead). It goes to the deleted list and can be restored with restore_task.

delete_task_comment

Delete a comment (your own, or any as admin, project manager or project lead).

get_task

Get one task with description, status, priority, assignees, estimate and booked hours, start/due date, tags, linked issue, links, subtask parent, attachments (with download links) and comments.

get_task_history

Change history of a task: who changed which field from what to what.

list_task_tags

List the tags used on tasks, optionally for one project.

remove_task_attachment

Remove an attachment from a task and move the file to the trash (your own attachment, or any as admin, project manager or project lead).

remove_task_link

Remove a link from a task by its position in the links list (0-based, as shown by get_task).

set_task_work_links

Replace the work result links of a task (what the assignee delivered, e.g. a PR or a deployed preview).

update_task

Update a task. Give only the fields to change: status, title, description, priority, assignedTo (replaces the list), tags (replaces), deadline, maxHours, linkedIssue, links (replaces), parentTaskId. Archive with status "archived". The legacy `updates` JSON string is still accepted.

update_task_comment

Edit the text of one of your own comments; it is marked as edited. Comments of others can only be deleted (by admins, project managers and project leads), not edited.

project

add_project_member

Add a team member to a project (admin or project manager). teamMemberId comes from list_team_members.

create_project

Create a project. clientId comes from list_clients (or create_client). Example: title "Website relaunch", projectCode "WEB", duration {startDate: "2026-11-01", endDate: "2027-03-31"}, budget {hourlyRate: 95, currency: "EUR"}.

delete_project

Delete a project you created. It is archived and hidden from all members; tasks and time entries stay in the database.

get_project

Get a project: status, client, budget, period, team member ids, task count and description.

get_project_budget

Budget analytics of a project: planned vs. used hours and amount, burn rate.

list_project_members

List the members of a project (team member id | user id | name | role | weekly hours). Use the team member id for add/update/remove_project_member.

remove_project_member

Remove a team member from a project. Their tasks stay assigned until you reassign them.

update_project

Update a project. Give only the fields to change, e.g. status "on_hold" or a new end date in duration. The legacy `updates` JSON string is still accepted.

update_project_member

Change role, weekly hours, capacity or permissions of a project member.

invoice

create_invoice

Create a draft invoice by hand. It stays a draft: finalizing and sending happen in the app, and finalizing needs a real sender address with a tax number or VAT ID (billingEntityId from list_billing_entities, or create_billing_entity with data the user gives you, never invented). Example: invoiceDate "2026-11-04", billingClientId from list_billing_clients, lineItems [{position: 1, description: "Consulting", quantity: 8, unit: "h", unitPrice: 95, vatRate: 19}].

create_invoice_from_time

Create a draft invoice from the unbilled time entries of a project in a period.

delete_invoice

Delete a draft invoice. Finalized invoices cannot be deleted.

get_invoice

Get an invoice with line items, buyer, totals and status. Accepts the id or the invoice number, e.g. RE-2026-0042.

get_invoice_pdf

Get the PDF of an invoice as an attached file.

list_invoice_payments

List the payments recorded on an invoice.

update_invoice

Update a draft invoice. Give only the fields to change; lineItems replaces the whole list; billingEntityId changes the sender and may renumber the draft. Finalized invoices cannot be changed.

deal

create_deal

Create a deal. Example: title "Website relaunch Acme", value 24000, stage "proposal", companyId, contactIds.

delete_deal

Delete a deal (it is hidden from lists and reports, its activities stay).

find_deal_by_ref

Find a deal by its 6-hex campaign ref code.

get_deal

Get a deal with contacts, company, products, notes and its activities.

update_deal

Update a deal by id: stage, status, notes, value, loss reason, tags, title, probability, expected close date, contacts, company.

mark

mark_chat_read

Mark all messages of a chat as read; resets its unread count.

mark_deal_lost

Mark a deal as lost with a reason, e.g. "Budget moved to 2027".

mark_deal_won

Mark a deal as won; status won, stage closed_won, counts in reports.

mark_gdpr_answered

Mark the GDPR request (Art. 15/17/21) of a suppression list entry as answered.

mark_notifications_read

Mark one notification as read, or all of them when notificationId is left out.

quote

create_quote

Create a quote as a DRAFT. Needs a real sender: billingEntityId from list_billing_entities, or create_billing_entity first with data the user gives you, never invented. Example: date "2026-11-04", billingClientId from list_billing_clients, positions [{description: "Design workshop", quantity: 2, unit: "days", unitPriceNet: 1200}]. Use estimate_quote first to price a scope. The quote is never sent automatically; sending needs a human approval in the app. The legacy `data` JSON string (document field names) is still accepted.

delete_quote

Delete a quote that has not been sent yet. Sent quotes stay for the record.

get_quote

Get a quote with positions, customer, totals and status.

get_quote_pdf

Get the PDF of a quote as an attached file.

update_quote

Update a draft quote. Give only the fields to change; positions replaces the whole list; billingEntityId changes the sender.

sales

create_sales_activity

Log or schedule a sales activity. Example: type "call", subject "Follow-up on proposal", contactId, dealId, scheduledAt "2026-11-06T10:00:00Z".

delete_sales_activity

Delete a sales activity from the deal and contact timeline.

get_sales_report

Sales reports. report: pipeline-value, conversion-rates, activity-metrics, forecast, win-loss, sales-velocity, leaderboard. Default pipeline-value.

list_sales_activities

List sales activities (calls, emails, meetings, tasks, notes), optionally for a contact, deal or company, or only upcoming/overdue ones.

update_sales_activity

Update a sales activity. Give only the fields to change.

billing

create_billing_entity

Create a sender for quotes and invoices. This data is printed on legal documents such as quotes and invoices, so use only what the user gives you and never invent or guess a value. An invoice cannot be finalized without the company name, full address, and a tax number or VAT ID; bank details belong on it if the customer pays by transfer. The result names what is still missing.

list_billing_clients

List billing clients (id | company | invoice email | payment terms). Use the id for invoices and quotes.

list_billing_entities

List your sender entities (id | name | default). Quotes and invoices are issued in the name of one of them.

update_billing_entity

Update a sender from list_billing_entities. Give only the fields to change. This data is printed on legal documents such as quotes and invoices, so use only what the user gives you and never invent or guess a value. An invoice cannot be finalized without the company name, full address, and a tax number or VAT ID; bank details belong on it if the customer pays by transfer.

goal

check_goal_item

Tick or untick one checklist item of a goal (index is 0-based, in the order list_goals shows).

create_goal

Create a daily or weekly goal, optionally linked to a task or project, with a checklist; shown in workload.zero as created by an agent. Example: title "Ship invoice export", checklist [{"label": "Write tests"}].

delete_goal

Delete a goal and its checklist. Linked tasks and time entries stay.

update_goal

Update a goal: date, title, task, project, color, time slot or checklist. Give only the fields to change. The legacy `updates` JSON string is still accepted.

time

delete_time_entry

Delete one of your time entries. Entries that are already invoiced or approved cannot be deleted.

get_my_time_entries

list_time_entries

List time entries of everyone you may see (admin and project manager view), filterable by project, user and date.

update_time_entry

Change a time entry (hours, date, description, task, start/end time, billable). Give only the fields to change.

company

delete_company

Delete a CRM company (it is hidden, its contacts stay).

get_company

Get a CRM company with its contacts and deals.

update_company

Update a CRM company by id, e.g. to rename it. Give only the fields to change.

contact

delete_contact

Delete a CRM contact. Before deleting for GDPR reasons, add the address to the suppression list.

get_contact

Get a CRM contact with deals and timeline (activities, mails, notes).

update_contact

Update a CRM contact by id, e.g. to change the email address. Give only the fields to change.

convert

convert_deal

Convert a deal by ref code (idempotent): stage converted, status won.

convert_lead

Convert a lead into a contact (and company), optionally with a new deal.

convert_quote_to_invoice

Convert an ACCEPTED quote into a draft invoice (positions 1:1).

file

delete_file

Move a file or folder to the trash (it can be restored in the app).

get_file_details

Get details of a file or folder: name, type, size, owner, versions, tags.

get_file_link

Get a temporary download link for a file (open it to view or download; the link expires, call again for a fresh one).

lead

create_lead

Create a lead (a person not yet qualified), e.g. from an event or a website form.

delete_lead

Delete a lead that is not converted.

update_lead

Update a lead, e.g. its status. Give only the fields to change.

pipeline

create_pipeline

Create a sales pipeline with its stages.

delete_pipeline

Delete a sales pipeline. Move or close its deals first.

update_pipeline

Update a sales pipeline: name, stages (replaces the whole list) or default flag.

send

send_direct_message

Send a direct message to a person (user id from list_users). Opens the direct chat if there is none yet.

send_message

Send a message in a chat. The participants see it immediately.

send_quote

Send a quote to the client by email. This ONLY works after the user approved the quote for sending in the app. There is intentionally no tool to grant that approval; sending stays under human control.

upsert

upsert_company

Create or update a CRM company idempotently by name.

upsert_contact

Create or update a CRM contact idempotently by email.

upsert_deal

Create or update a deal idempotently by campaign ref (derived from the lead email).

absence

delete_absence

Withdraw an absence request or delete an absence. The team calendar updates immediately.

update_absence

Change an absence request (dates, type, reason). Give only the fields to change.

absences

list_absences

List the absences you may see as admin or project manager, optionally by date range or status.

list_my_absences

List your absences (vacation, sick days, comp time) with status.

chat

create_chat

Create a group chat with people (user ids from list_users), optionally tied to projects.

get_chat_messages

Read the latest messages of a chat, oldest first (message id | time | sender | text). Use before (ISO time of the oldest shown message) to page back.

complete

complete_goal

Mark a goal as completed. Checklist items keep their own state.

complete_sales_activity

Mark a sales activity (call, email, meeting, task) as done.

files

list_files

List files and folders in a space or in one folder of it (id | name | file/folder | size | updated).

search_files

Search files by name across your spaces.

goals

get_goals_for_task

Get all goals linked to a task (task Mongo id), e.g. to see when work on it is planned.

list_goals

List goals by date range (YYYY-MM-DD) or timeframe, e.g. startDate 2026-11-01, endDate 2026-11-30.

move

move_deal_stage

Move a deal to another pipeline stage, e.g. "negotiation".

move_task_on_board

Move a task to a board column (status) and position (0 = top).

profile

get_my_profile

Get your own workload.zero profile (name, job title, bio, location, skills).

update_my_profile

Update your own profile. Pass the fields to change as a JSON object string.

suppression

add_suppression

Add an email address or a whole domain to the suppression list, e.g. after an unsubscribe, an objection (GDPR Art. 21), an erasure request (Art. 17) or an access request (Art. 15).

check_suppression

Check whether email addresses are on the suppression list (do-not-contact). ALWAYS call this before sending any outreach email; never email an address reported as suppressed.

active

get_active_timer

Show the running timer, if any (project, task, start time).

activity

get_activity_feed

Recent changes in your projects (who changed what), optionally for one project or one area.

assign

assign_task_to_me

Add yourself to the assignees of a task.

attach

attach_file_to_task

Attach an image or file to a task. Give sourceUrl (https) or base64 + fileName, or fileItemId of a file already in workload.zero. The file is stored in the project files under tasks/<task number>/ like in the app; returns a download link.

chats

list_chats

List your chats (id | title | participants | unread | last message).

client

create_client

Create a project client (admin or project manager).

clients

list_clients

List project clients (id | name | company | email). Use the id as clientId in create_project.

colleagues

get_my_colleagues

List the people you share projects with, incl. their team member ids.

companies

list_companies

List CRM companies (id | name | industry), optionally by search text.

contacts

list_contacts

List CRM contacts (id | name | email | company | position), optionally by search text or company.

deals

list_deals

default

set_default_pipeline

Set a sales pipeline as the default for new deals.

deleted

list_deleted_tasks

List deleted tasks of your projects (id | number | title | deleted at).

discard

discard_timer

Discard the running timer without booking any time.

edit

edit_message

Edit one of your chat messages. Participants see the new text marked as edited.

estimate

estimate_quote

Estimate a quote from a scope description. Returns deterministic 'historical' and 'rate-card' variants (each with sum and confidence) plus the context (comparable past projects, standard rate). Add your own 'free-scope' variant from the context, then present all variants with totals so the user can pick.

folder

create_folder

Create a folder in a space, optionally inside another folder.

invoices

list_invoices

leads

list_leads

link

link_deal_to_project

Link a won deal to the workload.zero project that delivers it.

log

log_time

Log time on a project, optionally for a task. Example: projectId, taskId, date "2026-11-04", hours 1.5, description "Code review". With startTime/endTime (HH:mm) the entry shows the time span.

message

delete_message

Delete one of your chat messages for all participants.

notifications

list_notifications

List your notifications, newest first (id | read | title | message).

pipelines

list_pipelines

List sales pipelines (id | name | stages | default).

projects

list_projects

List the projects you have access to (id | code | name | status | client).

qualify

qualify_lead

Mark a lead as qualified, ready to convert into a contact and deal.

quotes

list_quotes

List your quotes (id | number | date | status | customer).

recent

list_recent_files

List the files you opened or changed recently, across all spaces.

record

record_invoice_payment

Record a (partial) payment on an invoice. Example: amount 1190, paidAt "2026-11-04".

request

request_absence

Request an absence. Example: type "vacation", startDate "2026-12-22", endDate "2026-12-31". Partial days: startTime/endTime or hours.

restore

restore_task

Restore a deleted task. Takes the Mongo id from list_deleted_tasks.

revenue

get_revenue

Revenue breakdown of the year (per month, per client).

review

review_absence

Approve or reject an absence request (admin or manager). The employee sees the decision.

search

Search across projects, tasks (title, number, linked issue) and users. Example: query "ZERO-41" or "login bug".

start

start_timer

Start the running timer for a project (and task). Stop it with stop_timer to book the time.

stop

stop_timer

Stop the running timer and book the time as a time entry.

subtasks

list_subtasks

List the subtasks of a task. Create a subtask with create_task and parentTaskId.

suppressions

list_suppressions

List suppression list entries, optionally filtered by search, reason or open GDPR requests.

tasks

list_tasks

team

list_team_members

List team members (id | user | type | weekly capacity). The team member id is what projects and task assignments store.

todays

get_todays_goals

toggle

toggle_task_comment_reaction

Add your emoji reaction to a comment, or remove it if you already reacted with that emoji.

unassign

unassign_me_from_task

Remove yourself from the assignees of a task.

unbilled

get_unbilled_hours

Hours that are tracked but not invoiced yet, per project.

unread

get_unread_counts

Unread message counts per chat id, for a quick inbox check.

upload

upload_file

Upload a file into a space (optionally into a folder) from an https URL or base64. Allowed: images (png, jpeg, gif, webp, heic), pdf, txt, md, csv, json, zip, docx, xlsx, pptx. Returns the file id and a download link. To attach a file to a task use attach_file_to_task.

users

list_users

List the users of the workspace (id and name). Use the id for direct messages; for task assignment use list_team_members or the user id.

week

get_week_goals

Get your goals for the current week (Monday to Sunday), with checklist progress.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.workloadzero.de/mcp	streamable-http	answering	158 ms	11 min ago

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workload.zero — questions

Answers built from our own checks of this server.

What can workload.zero do?

It exposes 151 tools, read directly from the server on our last check. Among them: add_project_member, add_suppression, add_task_comment, add_task_link, assign_task_to_me, attach_file_to_task and 145 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is workload.zero mostly used for?

Its tools cluster around task, project and invoice. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is workload.zero working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 161 ms. The bar chart above shows every period we have measured.

How do I connect workload.zero?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does workload.zero need an API key?

No. workload.zero completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 151 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is workload.zero?

It answers our handshake in 161 ms on average, which is faster than 80% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is workload.zero open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.