charliehr.com

Live

CharlieHR API and MCP server

CharlieHR's API reads team members and leave but cannot approve time off, book leave, adjust allowances or offboard people. Sign in to CharlieHR once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

Sign up free View as Markdown

Not affiliated with CharlieHR.

CharlieHR has no API for this. So we run one for you.

CharlieHR's own API, a GitHub MCP server and Cotlet compared
What you need CharlieHR's APIGitHub MCP serverCotlet
Approvals, bookings, allowances, offboarding No No Yes, 12 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when CharlieHR changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 20, 2026. Sources: CharlieHR Help: Integrate Charlie with selected apps (API Access) · CharlieHR Help: Integrating your product with Charlie · CharlieHR API documentation · CharlieHR Help: Roles and permissions

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to CharlieHR in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect CharlieHR to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 12 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. CharlieHR and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/charliehr with its own method and path, such as POST /api/v1/charliehr/requests/{request_id}/time-off-request/approve, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the CharlieHR API and MCP server do?

12 tools on your own CharlieHR account. Agents call them as operations of the MCP tools charliehr_read and charliehr_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
CharlieHR tools in Cotlet's MCP server and REST API
Tool What it does Access
list_team_members People in your CharlieHR account with office, team, line manager and start date. read
get_team_member One profile: office, team, line manager, start date, role and working week. read
list_time_off_requests Time off requests with person, type, dates, days and status. read
get_time_off_allowance Allowance, days used, pending and remaining for one person and leave year, with adjustments. read
get_whos_working Who is working where and who is off, for one day. read
approve_time_off_request Approve one pending time off request, with an optional message to the person. writeasks first
deny_time_off_request Deny one pending time off request, with a message to the person. writeasks first
book_time_off Book time off on behalf of a team member; it is approved at once. writeasks first
record_sick_day Record sick leave for a team member; it is approved at once. writeasks first
adjust_time_off_allowance Add or remove days on one person's allowance, with a type, an expiry date and a note. writeasks first
cancel_time_off_booking Cancel one upcoming or past time off booking. writeasks first
offboard_team_member Offboard a person with a leaving date and a reason; the profile is archived. writeasks first

Scroll the table for all 12 tools.

Ask in plain words. Your agent does the rest.

All CharlieHR use cases

Is it safe to connect CharlieHR?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the CharlieHR API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while CharlieHR is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does CharlieHR have an API?

CharlieHR has an API, but a narrow one, and no official MCP server (checked 20 Oct 2026). A Super Admin creates a Client ID and Client Secret under Company > Integrations > API Access; the API covers team members, leave, offices and teams. It has no action to approve leave, book time off, adjust an allowance or offboard someone.

How do I get access?

Sign up free, open CharlieHR under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 12 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to CharlieHR yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so CharlieHR sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: approve_time_off_request, deny_time_off_request, book_time_off, record_sick_day, adjust_time_off_allowance, cancel_time_off_booking, offboard_team_member wait for your OK by default. You can switch that off per tool for scheduled runs.

Which CharlieHR role does my agent need?

The role of the account you sign in with. Super Admins and Admins work company-wide, Line Managers and Team Leads work on their own people, and Payroll Admins and members cannot approve leave. CharlieHR says permissions cannot be customised (CharlieHR Help: Roles and permissions).

Can my agent read or change salaries?

No. The tools do not read or write salary, bank or payroll data. In CharlieHR only Super Admins add salaries, and Admins cannot see payroll information (CharlieHR Help: Add salaries in Charlie, Roles and permissions).

Should I use a CharlieHR MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when CharlieHR changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with CharlieHR?

No. Cotlet is independent and not affiliated with CharlieHR.

Give your agent access to CharlieHR.

Free 7-day trial with 2,000 credits, no card needed.

Sign up free