Accordio MCP: Give Claude Your Hours, Invoices and Contracts (30 Tools, One URL)

Claude ate my product's main feature.

I spent most of 2025 building an AI contract generator for freelancers. Then Claude got good enough to draft any contract you describe, for free, in one message. My headline feature became a prompt.

So I kept the part it can't eat.

Claude can draft anything. It can't see your hours. It can't tell you what Acme still owes you. It can't hand your client a link to sign, and it can't chase the invoice on Tuesday. Those things live in a system of record... and Claude doesn't have one.

Accordio MCP is that system of record, handed to Claude over one URL.

I lost €50K to clients who never paid before I built Accordio. No contract, no tracked hours, no paper trail. That is the problem the whole product exists to fix, and the MCP server is the shortest path into it: you keep chatting where you already chat, and the numbers behind the answers are real.

The short answer: Accordio MCP is a remote MCP server at https://mcp.accordio.ai/mcp. Add it once and Claude gets 30 tools: read tracked time, list clients and projects, start and stop timers, check unbilled hours, see which invoices are overdue, file expenses, read your calendar, remember your rates, and draft invoices, proposals and contracts. Reads and tracking are free forever. Drafting money documents is the Legend plan. Nothing is ever sent, signed or deleted from a chat.

By the end of this article, you'll be able to:

• Understand what an MCP server is and why Claude needs one for your business
• Set up Accordio MCP in Claude, Claude Code, Codex or ChatGPT in under two minutes
• Know exactly which 30 tools Claude gets, and which 27 of them are free
• Compare Accordio MCP with the other time tracking and invoice MCP servers
• Understand what the connector can never do, and why that is the point

What Is Accordio MCP?

MCP stands for Model Context Protocol. It is the open standard that lets an AI assistant call tools outside its own chat window. Claude, ChatGPT, Codex and Cursor all speak it. An MCP server is the other end of that call: a URL that exposes a list of named tools, each one a thing the assistant can read or do on your behalf.

Accordio MCP is the server for your freelance back office. One URL, 30 tools, scoped OAuth.

Think about what Claude knows about your business right now. Nothing. Every conversation starts from zero. You paste in the hours, you paste in the rates, you retype the client name, and you hope you didn't forget the two calls from Tuesday.

With the connector attached, the same question gets a different kind of answer. Ask what you worked on today and Claude calls get_time_summary and reads the time your Mac actually tracked. Ask what Acme owes you and it calls get_unbilled_time and adds it up in money. Ask for the invoice and it calls draft_invoice_from_time, prices the hours from your rates, and hands you a link to check and send.

It measures. It doesn't ask.

What Claude Can See

• The time your Mac tracked, grouped by client, project or category, for any day, week or month
• Your clients and projects, so nothing gets attributed to a guessed name
• Open invoices, contracts waiting on a signature, and proposals and where each one stands
• Unbilled hours, in money, per client
• Your tasks, your expenses by category, and your calendar
• The notes Accordio already holds: a client's terms, your rates, how you like things done

Never your screen. Window titles and screenshots stay on your Mac. Claude gets the summary, not the footage.

What Claude Can Do

• Start and stop timers, and log hours you tell it about
• Reassign tracked entries to the right project, and fix ones you say are wrong
• Create a client or a project, when you ask for one
• File the expenses and tasks you dictate, and tick tasks off
• Put events on your calendar. It never emails an invitation
• Remember a fact you state, so it is there next time. On WhatsApp too
• Draft an invoice, a proposal or a contract, and hand you the link

What It Will Never Do

• Send anything. No invoice, no email, no message leaves Accordio from a chat.
• Sign anything. Signatures happen in Accordio, by the person signing.
• Delete anything. There is no delete verb on the connector at all.
• Take a payment, or move money in any direction.

That is not a missing feature. It is the design. Claude drafts, you send. Every invoice, proposal and contract it produces opens in Accordio so you can check the numbers before anything leaves the building.

The 30 Tools

Here is the full catalogue. 27 tools are free on any plan. 3 are Legend.

A few of these deserve a sentence.

• update_time_entry moves a whole Thursday to the right project in one go. The tracker is good at knowing you were in Figma. It is not psychic about which client the file belonged to, so you fix it in one message.
• get_setup_status is what Claude calls on a fresh account. It sees what is missing and gets the link to fix it. Then it offers to create your first client from what it already knows about your work and start a timer on the session.
• remember and recall share the same notes as the WhatsApp assistant. Tell it on WhatsApp, ask about it in Claude.
• draft_invoice_from_time turns unbilled hours into a real invoice draft, priced from your rates, in your currency. The link it hands back opens in Accordio, where you press send.

How to Set Up Accordio MCP

Same server, same tools, whichever host you use. Pick yours.

Claude (Web, Desktop and Mobile)

Two minutes in the browser. Add it once and it follows your account everywhere: web, desktop, phone.

1. In Claude, open Settings, then Connectors, and choose Add custom connector.
2. Paste the server URL: https://mcp.accordio.ai/mcp. No auth headers. OAuth handles the sign-in the first time a tool runs.
3. Download the Mac tracker from accordio.ai/download. This is the step that gives Claude real hours to read. Free, open source.

Then ask: what did I work on today?

Claude Code

Paste one prompt and Claude Code sets itself up: connector added, tracker installed.

Set up Accordio for me: 1. run claude mcp add --transport http accordio https://mcp.accordio.ai/mcp 2. run brew install --cask accordio-ai/tap/accordio 3. tell me when it is connected, then show me what I worked on today

The one-liner on its own, if you'd rather run it yourself:

claude mcp add --transport http accordio https://mcp.accordio.ai/mcp

Approve the sign-in it opens. On a fresh account it offers to create your first client and start a timer on this session.

Codex, OpenClaw, Hermes and Other Hosts

Any host that speaks streamable HTTP can hold the connector. Add an MCP server named accordio, transport http, URL https://mcp.accordio.ai/mcp, no auth headers. Or paste the same setup prompt from above and let the agent wire itself up.

ChatGPT

ChatGPT holds the connector through developer mode. Any paid plan, set up in the browser.

1. Settings, then Apps, then Advanced settings. Switch developer mode on. On Business and Enterprise an admin allows it first.
2. Settings, then Connectors, then Create. Name it Accordio, pick OAuth, no headers, paste https://mcp.accordio.ai/mcp.
3. Download the Mac tracker. ChatGPT asks you before any tool writes anything.

The Lazy Way

Paste this sentence into any chat: Set up Accordio from accordio.ai/mcp. The page carries agent-readable instructions, so the assistant reads them and does the setup itself. Full host-by-host docs are at app.accordio.ai/docs/mcp.

A Real Session

Here is what a first conversation looks like once the tracker has a day of data. Figures are from an example account.

You: what did I work on today, and what is unbilled?

Claude: 6.2h tracked today. Acme Corp, 3.1h, wireframes. FreshBrand, 1.6h, call and follow-up. Admin, 1.5h. Acme is at $2,340 unbilled this month, across 18.5h.

You: draft the invoice for Acme

Claude: Draft ready. Review the lines and send it from Accordio. Invoice for Acme Corp, $2,340, 18.5h tracked.

Two messages. No spreadsheet. No guessing how long the wireframes took, because nobody had to guess.

Accordio MCP vs Other Time Tracking and Invoice MCP Servers

There are good MCP servers for time and invoices already. I'm not going to pretend otherwise. Here is where each one sits.

The pattern is the same everywhere: the assistant is only as good as the hours you remembered to log. Accordio starts one step earlier. The tracker on your Mac records which client you were working for, and the connector reads that. The invoice is built from measured time, not recalled time.

The other difference is what sits behind the same URL. One connector instead of QuickBooks plus HubSpot plus DocuSign plus Harvest. Claude gets the whole picture: the hours, the client, the contract they signed, the proposal that started it, and the invoice that closes it.

What It Costs

Tracking and asking are free forever, on any plan. That is 27 of the 30 tools.

Drafting invoices, proposals and contracts is Legend: $39 a month, or $29 a month billed yearly, with a 14-day trial. Those are the money verbs, and every draft opens in Accordio for you to check and send.

No credit card to start tracking. No per-seat pricing. No per-tool pricing.

Security and Privacy

• The connection is scoped OAuth. You see the exact list of permissions before you approve it.
• Revoke it any time: Accordio settings, Connected apps, Revoke. The tools stop within a minute and your tracked time stays where it is.
• Accordio does not train models on your work.
• The macOS tracker is open source. Read the capture engine before you run it.
• Window titles and screenshots never leave your Mac. The connector only ever reads summaries.
• There is no send, sign or delete verb on the connector, so the worst a bad prompt can do is a draft you didn't want.

Accordio is an independent product. It works with Claude through MCP, the open standard. No partnership with Anthropic, no affiliation.

Who Should Use It

• Freelancers who bill by the hour and hate the Sunday timesheet
• Consultants with five clients and no idea which one is eating the week
• Designers and developers who already run their day from Claude Code and want the hours to count without a second app
• Anyone who lost money to a client because there was no contract and no record. I was that person.

If you bill by the project, it still works. Proposals and contracts come from a brief, invoices come from the milestone, and the tracked time tells you whether the fixed price was a good idea.

Conclusion

Claude is the app now. I'm fine with that. What it needs is a place where the business actually lives: the hours, the clients, the money in and out, the signatures. Accordio MCP is that place, one URL away.

Add it, install the tracker, and ask what you worked on today. The answer will be the first honest number your AI has ever given you about your own business.

Set it up: accordio.ai/mcp · Docs: app.accordio.ai/docs/mcp · Tracker: accordio.ai/download